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Report (132) p+�" v/? - 007 5j DURHAM EDUCATION CENTER 0 0 o W Pee chGs7'wt 082217 ECTION 26 05 00 COMMON WORK RESULTS FOR ELECTRICAL Page 1 of 10 PART 1 - GENERAL 1.1 APPLICABLE REQUIREMENTS A. All work under this Section shall comply with the requirements of General Conditions, Supplemental Conditions, Special Conditions and Division 01 - General Requirements, and shall include all Electrical Sections specified herein. 1.2 SCOPE OF THIS SECTION A. All work to be furnished and installed under this Section shall comply with all the requirements of Division 01, and shall include, but not necessarily be limited to, the following: 1. Compliance with all codes and standards applicable to this jurisdiction. 4 r A A 2. Shop Drawings for Equipment ' v` 3. Coordination Documents ; 4. Record Drawings 17 5. Start-up Service and Building Commissioning 6. Instruction, Maintenance, and 0 & M Manuals • 7. Work associated with Delivery, Storage, and Handling of products 8. Work associated with provision of Temporary Facilities 1119. Preparation of Posted Operating Instructions 10. Meeting Project Safety and Indemnity requirements 11. Proper Cleaning and Closing 12. Supplying proper Warranty information 13. Supply specified Guarantee documentation 14. Design and provision of Supports and Anchors 15. Access Panels and Doors 16. Identification Markers 1.3 DESCRIPTION OF WORK A. The Contract Documents, including Specifications and Construction Drawings, are intended to provide all material and labor to install complete power distribution, auxiliary power production, lighting systems for the building and shall interface with all existing building systems affected by new construction. B. The Contractor shall refer to the architectural interior details, floor plans, elevations, and the structural and other Contract Drawings and he shall coordinate his work with that of the other trades to avoid interference. The plans are diagrammatic and show generally the locations of the fixtures, equipment, and raceways and are not to be scaled; all dimensions and existing conditions shall be checked at the building. C. The Contractor shall comply with the project closeout requirements as detailed in General Requirements of Division 01. 1.4 DESCRIPTION OF BID DOCUMENTS A. Specifications: 1. Specifications, in general, describe quality and character of materials and equipment. 2. Specifications are of simplified form and include incomplete sentences. B. Drawings: 1. Drawings in general are diagrammatic and indicate sizes, locations, connections to equipment and methods of installation. 2. Before proceeding with work check and verify all dimensions. Consult architectural drawings if there are any issues regarding dimensions. 3. Assume all responsibility for fitting of materials and equipment to other parts of equipment and structure. 4. Make adjustments that may be necessary or requested, in order to resolve space problems, preserve headroom, and avoid architectural openings, structural members and work of other trades. 5. If any part of Specifications or Drawings appears unclear or contradictory, apply to Architect or Engineer for his interpretation and decision as early as possible, including during bidding period. 1.5 RELATED WORK SPECIFIED ELSEWHERE A. All Division 26 Electrical sections included herein. I DURHAM EDUCATION CENTER SECTION Pa2 2 2605 5 0 00 0 082217 I of COMMON WORK RESULTS FOR ELECTRICAL B. Division 33: Utility Site Work. 1. Coordination of excavation of trenches and the installation of mechanical systems and piping on site. Utility requirements and incoming services. C. Division 03: Concrete. 1. All concrete work for Mechanical Division shall be included in Division 23 under the appropriate Sections and shall include: 111 a. Concrete curbs and housekeeping pads for the mechanical equipment. b. Thrust blocks, pads, and boxes for mechanical equipment. c. Coordination of floor drain and floor sink installations in sloped floors. D. Division 07: Thermal and Moisture Protection. 1. Flashing and sheet metal. 2. Sealants and caulking. 3. Firestopping. E. Division 09: Painting: 1. Division 09 installer shall perform all painting, except where specifically stated otherwise in Division 09. F. Division 21: Plumbing is related to work of: 1. Power connections to all plumbing equipment. I 2. Installation of controllers and disconnect furnished by Division 21 contractor. G. Division 23: HVAC is related to work of: 1. Power connections to all mechanical equipment. 2. Installation of controllers and disconnect furnished by Division 23 contractor. H. Division 28: Electronic Safety and Security is related to work of: 1. Power connections to equipment. 1.6 CODES AND STANDARDS A. The Contractor is cautioned that code requirements not explicitly detailed in these specifications or drawings, but which may be reasonably inferred or implied from the nature of the project, must be provided as part of the contract. I B. Perform all tests required by governing authorities and required under all Division 26 Sections. Provide written reports on all tests. C. Electrical devices and wiring shall conform to the latest standards of NEC; all devices shall be UL listed and labeled. D. All electrical work shall comply with the Americans with Disabilities Act(ADA). E. All excavation work must comply with all provisions of state laws including notification to all owners of underground utilities at least 48 business day hours, but not more than 10 business days, before commencing an excavation. F. Provide in accordance with rules and regulations of the following: 1. Building Codes enforced by the Authority Having Jurisdiction in Oregon: a. 2014 Oregon Structural Specialty Code (OSSC)with amendments b. 2012 International Fire Code (IFC)with Oregon Amendments I c. 2014 National Electric Code (NEC)with State Amendments 2. Local, city, county and state codes and ordinances. 3. Local Bureau of Buildings. 4. Local Health Department. 5. Local and State Fire Prevention Districts. 6. State Administrative Codes. 1.7 GENERAL REQUIREMENTS A. Examine all existing conditions at building site. B. Review contract documents and technical specifications for extent of new work to be provided. C. Provide and pay for all permits, licenses,fees and inspections. D. Install equipment and materials to provide required access for servicing and maintenance. Coordinate the final location of concealed equipment and devices requiring access with final location of required access DURHAM EDUCATION CENTER 082217 SECTION 260500 COMMON WORK RESULTS FOR ELECTRICAL Page 3 of 10 panels and doors. Allow ample space for removal of all parts that require replacement or servicing. This work shall include furnishing and installing all access doors required for access. E. Verify final locations for rough-ins with field measurements and with the requirements of the actual equipment to be connected. Refer to Equipment Specifications in Divisions 02 through 26 for rough-in requirements. F. Coordinate electrical equipment and materials installation with other building components. G. Verify all dimensions by field measurements. H. Arrange for chases, slots, and openings in other building components to allow for mechanical installations. I. Coordinate the installation of required supporting devices and sleeves to be set in poured-in-place concrete and other structural components, as they are constructed. J. Sequence, coordinate, and integrate installations of mechanical materials and equipment for efficient flow of the work. Give particular attention to large equipment requiring positioning prior to closing-in the building. K. Coordinate the cutting and patching of building components to accommodate the installation of electrical equipment and materials. Contractor to provide for all cutting and patching required for installation of his work unless otherwise noted. L. Where mounting heights are not detailed or dimensioned, install electrical services and overhead equipment to provide the maximum headroom possible. M. Install electrical equipment to facilitate maintenance and repair or replacement of equipment components. N. Coordinate the installation of electrical materials and equipment above ceilings with ductwork, piping, conduits, suspension system, light fixtures, cable trays, sprinkler piping and heads, and other installations. O. Coordinate connection of electrical systems with exterior underground and overhead utilities and services. Comply with requirements of governing regulations, franchised service companies, and controlling agencies. Provide required connection for each service. P. All materials located within air plenum spaces, air shafts, and occupied spaces shall have a flame-spread index of 25 or less, and smoke-developed index of 50 or less, as tested by ASTM E84 (NFPA 255) Method. In addition, the products, when tested, shall not drip flame particles, and flame shall not be progressive. Provide Underwriters Laboratories, Inc., label or listing, or satisfactory certified test report from an approved testing laboratory to prove the fire hazard ratings for materials proposed for use do not exceed those specified. Q. Products made of or containing lead, asbestos, mercury or other known toxic or hazardous materials are not acceptable for installation under this Division. Any such products installed as part of the work of the Division shall be removed and replaced and all costs for removal and replacement shall be borne solely by the installing Contractor. 1.8 MINOR DEVIATIONS A. The Drawings are diagrammatic and show the general arrangements of all mechanical work and requirements to be performed. It is not intended to show or indicate all offsets, fittings, and accessories which will be required as a part of the work of this Section. B. The Contractor shall review the structural and architectural conditions affecting his work. It is the specific intention of this section that the contractor's scope of work shall include 1. Proper code complying support systems for all equipment whether or not scheduled or detailed on drawings or in these specifications 2. Minor deviations from the electrical plans required by architectural and structural coordination. 3. ATTACHEMENT TO ROOF DECK IS PROHIBITED. DO NOT FASTEN DIRECTLY TO PLYWOOD ROOF SHEATHING TO AVOID PENETRATING ROOF AIR/VAPOR BARRIER. Contractor is respon- sible for coordination of all supports and connections in the open ceilings to the multidiscipline sup- ports provided by structural. C. The Contractor shall study the operational requirements of each system, and shall arrange his work accordingly, and shall furnish such fittings, offsets, supports, accessories, as are required for the proper and efficient installation of all systems from the physical space available for use by this section. This requirement extends to the Contractor's coordination of this section's work with the "Mechanical Work." i DURHAM EDUCATION CENTER SECTION 26 I Pa26 05 5 0 00 082217 2 4 COMMON WORK RESULTS FOR ELECTRICAL Should conflicts b to the Contractor)nation,and shah) ne to be at aime y, cost of co t to the Owner.trectification, demolition, labor and materials, shall be borne Y D. Minor deviations in order to avoid conflict shall be permitted where the design intent is not altered. E. Advise the Architect, in writing, in the event a conflict occurs in the location or connection of equipment. Bear all costs for relocation of equipment, resulting from failure to properly coordinate the installation or failure to advise the Architect of conflict. 1.9 PRODUCT SUBSTITUTIONS A. The Contractor shall certify the following items are correct when using substituted products other than those scheduled or shown on the drawings as a basis of design: 1. The proposed substitution does not affect dimensions shown on drawings. 2. The proposed substitution does not affect the electrical characteristics shown on the drawings. 3. The Contractor shall pay for changes to building design, including engineering design, detailing, structural supports, and construction costs caused by proposed substitution. 4. The proposed substitution has no adverse effect on other trades, construction schedule, or specified warranty requirements. 5. Maintenance and service parts available locally are readily obtainable for the proposed substitute. B. The Contractor further certifies function, appearance, and quality of proposed substitution are equivalent or superior to specified item. C. The Contractor agrees that the terms and conditions for the substituted product that are found in the contract documents apply to this proposed substitution. 1.10 SHOP DRAWINGS AND EQUIPMENT SUBMITTALS A. Prior to construction submit for review all materials and equipment in accordance with Division 01 requirements. B. After approval of preliminary list of materials, the Contractor shall submit Shop Drawings and manufacturer's Certified Drawings to the Architect for approval. C. Submittals and Shop Drawings shall be submitted as a complete package in electronic format(.pdf) grouped in order of each specification section. The approved submittals shall be converted into Operations &Maintenance Manuals at the completion of the project. Refer to Division 01 for additional requirements. 1.11 COORDINATION A. Coordinate arrangement, mounting, and support of electrical equipment: 1. To allow maximum possible headroom unless specific mounting heights that reduce headroom are indicated. 2. To provide for ease of disconnecting the equipment with minimum interference to other installations. 3. To allow right of way for piping and conduit installed at required slope. 4. So that the connecting raceways, cables, wireways, cable trays, and busways will be clear of obstructions and of the working and access space of other equipment. B. Contractor is responsible for coordination of all supports and connections in the open ceilings to the multidiscipline supports provided by structural. C. Coordinate installation of required supporting devices and set sleeves in cast-in-place concrete, masonry walls, and other structural components as they are constructed. D. Coordinate location of access panels and doors for electrical items that are behind finished surfaces or otherwise concealed. Access doors and panels are specified in Division 08 Section "Access Doors and Frames." 1 E. Coordinate sleeve selection and application of firestopping specified in Division 07. 1.12 COORDINATION DOCUMENTS A. The Contractors shall prepare coordinated Shop Drawings to coordinate the installation and location of all HVAC equipment, ductwork, grilles, diffusers, piping,fire sprinklers, lights, audio/video systems, electrical services and all system appurtenances for the Architect to review. The Drawings shall include all mechanical rooms and floor plans. The Drawings shall be Overlay Drawings showing each discipline on a single sheet. The Drawings shall be keyed to the structural column identification system, and shall be progressively numbered. completionDrawings, Contractor shall coordinate proposed installation withthe Architect and the structural requirements, and all othertrades (ncludingHVAC 111 DURHAM EDUCATION CENTER 082217 SECTION 26 05 00 ICOMMON WORK RESULTS FOR ELECTRICAL Page 5 of 10 Plumbing, Fire Protection, Electrical, Ceiling Suspension, and Tile Systems), and provide reasonable i maintenance access requirements. When conflicts are identified, modify system layout as necessary to resolve. Do not fabricate, order or install any equipment or materials until coordination documents are approved by the General Contractor, Architect, and Owner. Within thirty(30)days after award of Contract, submit proposed coordination document Shop Drawing schedule, allowing adequate time for review and I approval by parties mentioned above. Drawings should be prepared and submitted for approval on a floor- by-floor basis to phase with building construction. B. The Drawings shall be prepared as follows: 1. Mechanical Subcontractor shall be responsible for and lead the coordination of the mechanical, plumbing, fire protection, controls and electrical work. Subcontractor shall complete detailed coordination drawings for this Bid Package scope of work in accordance with the contract documents. Subcontractor shall assign a detailer to this project who shall take the lead in coordinating drawings with other subcontractors to ensure all systems will be installed without conflict. Coordination drawings shall be produced utilizing the format directed by the general contractor and consistent with other trades. Coordination drawings shall be drawn to the specified scale of the Structural 3d model. The structural steel drawing model plans will be provided to the Subcontractor in the same format for coordination. The Mechanical Subcontractor shall provide the coordination drawings on disk and printed plans, which will then be forwarded to the Plumbing, Electrical, and Fire Sprinkler Subcontractors for their use in overlaying their work in the coordination drawings. Coordination Drawings must consist of more than overlaid plan views. Sections and elevations must be included as required to verify that everything fits. Include ceiling spaces as well as wall elevations. Subcontractor shall provide and allow costs for collision checking of all mechanical, electrical, fire sprinkler piping, 4 waterslide, structure and rough-in and shall review submitted coordination drawings as well as manage meetings to resolve conflicts. Subcontractor shall overlay 3D drawings and or drafted shop drawings for review. Conflicts shall be identified and recommended resolution shall be submitted to design for review. Please note this effort is above and beyond normal project coordination responsibilities typically found on other projects. Subcontractor's detailing personnel shall participate in joint coordination meetings with other Subcontractors on the project. Subcontractor shall adequately staff and lead the detailing efforts to insure fast track schedule requirements are met. 1 2. The Plumbing Contractor shall obtain access to the latest models created to date and indicate all plumbing lines including fittings, hangers, access panels, valves, and bottom of pipe elevations above finished floor. Drawings should be presented in the format directed by the general contractor and consistent with other trades. Plumbing contractor detailer will be required to attend all MEP coordination meetings for coordination of their work with all other trades. 3. The Fire Protection Contractor shall obtain access to the latest models created to date. The Sprinkler Contractor shall indicate location of all sprinkler heads and piping, including valves and fittings, I dimensions from column lines, and bottom of pipe elevations above finished floor. Drawings should be presented in the format directed by the general contractor and consistent with other trades. Fire protection detailer will be required to attend all MEP coordination meetings for coordination of their work with all other trades. 4. The Electrical Contractor shall obtain access to the latest models created to date, and indicate all electrical distribution equipment and power generation equipment with required clearances, feeders over 100 amps, conduit racks containing more than four conduits, cable trays, electrical connections to I Mechanical equipment, proposed ceiling grid and lighting layout. Drawings should be presented in the format directed by the general contractor and consistent with other trades. Electrical subcontractor detailer will be required to attend all MEP coordination meetings for coordination of their work with all other trades. 5. Plans are to incorporate all addenda items and change orders. 6. Distribute plans to all trades and provide additional coordination as needed. C. Advise the Architect in the event a conflict occurs in the location or connection of equipment. Bear all costs 1 for relocation of equipment, resulting from failure to properly coordinate the installation or failure to advise the Architect of conflict. D. Provide means of access to all junction boxes, disconnect switches, controllers, operable devices, and I other apparatus that may require adjustment or servicing. E. Final Coordination Drawings with all appropriate information added are to be submitted as Record Drawings at completion of project. IF. Provide copy of Record Drawings to Commissioning Agent for their use when doing their work. DURHAM EDUCATION CENTER SECTION 26 05 00Page 6 of 10 082217 COMMON WORK RESULTS FOR ELECTRICALII 1.13 RECORD DRAWINGS A. Before commencing installation, obtain an extra set of prints from Architect, marked "Record." Keep this set of Drawings at the job site at all times, and use it for no other purpose but to mark on it all the changes and revisions to the Contract Drawings resulting from coordination with other trades. At the completion of the project, 1. Edit project Revit model to incorporate all site markups, changes, and revisions to the Contract Drawings. Submit plots of Record Drawings and six copies CD Roms labeled with all record Revit drawing files. B. Provide copy of Record Drawings to Testing and Balancing Contractor for use when doing his work. C. Mark Drawings to indicate revisions to raceways; actual equipment locations, dimensioned from column lines; actual inverts and locations of underground raceways; concealed equipment, dimensioned to column lines; Change Orders. i D. Mark Specifications to indicate approved substitutions; Change Orders; actual equipment and materials used. E. Refer also to Special Conditions in Division 01 for full scope of requirements. 1.14 DELIVERY, STORAGE AND HANDLING A. Deliver products to project properly identified with names, model numbers, types, grades, compliance labels, and similar information needed for distinct identifications; adequately packaged and protected to prevent damage during shipment, storage, and handling. d area at the B. authorized equipment and mls in an stored qvironmentally and materials from damage.Ite, unless Piping shall e stored inte is bundles in wriwith Protectequipment of rust shall be removed from site and replaced. bundles covered with visqueen. Piping showing signs C. Coordinate deliveries of mechanical materials and equipment to minimize construction site congestion. Limit each shipment of materials and equipment to the items and quantities needed for the smooth and efficient flow of installations. 1.15 SAFETY AND INDEMNITYfy A. The Contractor shall be solely and completely responsible for conditions of the job site including g I sa et of ot all persons and property during performance of the work. This requirement will apply Y be limited to normal hours of work. the Engineers or their of the B. No act, service, drawing, review, or Construcfon eade viewbacy ofOwner, Contract Architect, safety measures, in, on, consultants, is intended to include the review q or near the construction site. ion of Specifications C. The theContractor performingth Vork under the Engineersgis lsand theireconsultant, and each of holdl eirnless, indemnify and officers, mployees defend the Owner,the Architect, and agents from any and all liability claim, losses or damage arising, or alleged to arise from bodily injury, sickness, or death of a person or persons, and for all damages arising out of injury to or destruction of property arising directly or indirectly out of, or in connection with,the performance of the work under the Division of the Specifications, and from the Contractor's negligence in the performance of the work described in the Construction Contract Documents; but not including the sole negligence of the Owner, the Architect, the Engineers, and their consultants or their officers, employees and agents. 1.16 CLEANING AND CLOSING A. All work shall be inspected, tested, and approved before being concealed or placed in operation. B. Upon completion of the work, all equipment installed as tionifies satin isfactory section the and alll h tect areas where work I was performed, shall be cleaned to provide operating gond 1.17 WARRANTIES A. All equipment shall be provided with a minimum one-year warranty to include parts and labor. Refer to individual Equipment Specifications for extended or longer-term warranty requirements. B. Provide complete warranty information for each item, to include product or equipment, date of beginning of warranty or bond; duration of warranty or bond; and names, addresses, telephone numbers and procedures for filing a claim and obtaining warranty se I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 00 ICOMMON WORK RESULTS FOR ELECTRICAL Page 7 of 10 C. Service during warranty period: Contractor shall provide maintenance as specified elsewhere during the 12-month warranty period. 1.18 GUARANTEE A. The Contractor shall guarantee and service all workmanship and materials to be as represented by him and shall repair or replace, at no additional cost to the Owner, any part thereof which may become defective within the period of one (1) year after the Date of Final Acceptance, ordinary wear and tear excepted. B. Contractor shall be responsible for and pay for any damages caused by or resulting from defects in his work. PART 2- PRODUCTS I2.1 GENERAL A. Furnish and install all new material, equipment, and apparatus noted otherwise. All material, equipment, and a hereinafter specified unless specifically nameplate, and pertinent data. apparatus shall be identified by the manufacturer's name, B. All materials, equipment, and apparatus are mentioned as standards unless noted otherwise. The words "or approved equal"shall be considered to be subsequent to all manufacturers' names used herein, unless specifically noted that substitutes are not allowed. PART 3- EXECUTION 3.1 COMMON REQUIREMENTS FOR ELECTRICAL INSTALLATION A. Comply p y wi th NECA 1. B. Measure indicated mounting heights to bottom of unit for suspended items and to center of unit for I wall- mounting items. C. Headroom Maintenance: If mounting heights or other location criteria are not indicated, arrange and install components and equipment to provide maximum possible headroom consistent with these requirements. I D. Equipment: Install to facilitate service, maintenance, and repair or replacement of components f both electrical equipment and other nearby installations. Connect in such a way as to facilitate future disconnecting with minimum interference with other items in the vicinity. i E. All junction boxes shall be readily accessible per NEC definition and labeled with panel and circuits origin. of F. Right of Way: Give way to piping systems installed at a required slope. G. Equipment Dimensions: Provide equipment that fits the available space. Do not exceed di indicated or shown without prior approval. mensions H. Field verify exact locations, dimensions, and routing of existing equipment. I. Workmanship shall be performed by licensed journeymen or master mechanics and shall result in an installation consistent with the best practices of trades. J. Install work uniform, level and plumb, in relationship to lines of building. Do not install any diagonal, or 11 otherwise irregular work unless so indicated on Drawings or approved by Architect. K. In open ceilings, contractor shall install conduit parallel and perpendicular to walls, tight to finished surfaces and in a neat and tidy manner. 3.2 MANUFACTURER'S DIRECTIONS A. Follow manufacturers'directions and recommendations in all cases where the manufacturers of articles used on this Contract furnish directions covering points not shown on the Drawings or covered in these Specifications. B. If the contractor must deviate from the manufacturer's recommendations provide a letter from the manufacturer indicating the clearance to be provided is acceptable for scheduled performance and I maintenance. I DURHAM EDUCATION CENTER SECTION 26 05 00 111 Page 8 of 10 082217 COMMON WORK RESULTS FOR ELECTRICAL 3.3 INSTALLATION A. Coordinate the work between thevarious ust be Electrical red duections and with the work to lack of proper supervis pecified under other failure to make Divisions. If any cooperative work proper and timely provisions, the alternations shall be made to the satisfaction of the Engineer and at the Contractor's cost. Coordinate wall and ceiling work with the General Contractor, and his subcontractors in locating lighting fixtures,wiring devices, disconnects, controllers, etc. ed or defected i damaged B. Inspect all material, equipment, and apparatus upon delivery and do not install any 9 materials. 3.4 ELECTRICAL REQUIREMENTS A. Electrical Contractor shall coordinate with Division 23 work to provide electrical service as required to operate all mechanical devices under this Division of work. 1 B. Installation of Electrical Connections: Furnish, mot rs and conand trolsen accordance with the hfol olw ng schedule se indicate ) all heating,ventilating, air conditioning, etc., ustry and ra ti ,accordanceowithiequipment wip applicableacturer's requirements of ULen , NEC, and NECA's"Standard ructions and with recognized lof Installation" practices, and complying with pp work erformed under the Mechanical II to ensure that products fulfill requirements. Carefully coordinate with Division of these Specifications. C. Division 23 has responsibilities for 'schedu ed on Dv is on 23 Drawings.cally powered or ontrolled cal equipment The pec specific d is of specified in Division 23 Specifications or responsibilities between Division 23 and 26 for furnishing or wiring this equipment is as follows: 1. Division 23 Mechanical Responsibilities: I a. MOTORS: Furnish and install all motors necessary for mechanical equipment. ly b. MAGNETICSTARTERS: Furnish itwhetherstarters m conwnich are necessrYfor mechancal equpmnt Furnsh these with all control relays or transformers necessary to interface with mechanical controls. If the starter is factory installed on a piece of Division 23 equipment, also furnish and install the power wiring between starter and motor. with mechanical ipment. c. VARIABLE FREQUENCY DRIVES:faro rY y assembled equipmentrovide all VFD's dthe wiring between muotor and If the drive is installed on a piece of drive is to be provided as part of the factory equipment. d. DISCONNECTS: the disconnects which factory Division Factory wiring to include wirgbetweenmotr and disconnect or combnationstarter/disconnect. ure e. CONTROLS: eio llowinoequipment(including i its entirety. Thistequipmentl subcontractor) includes23 Cntractor but is not limited responsible forr the following to the following: i 1) Control relays necessary for controlling Division 23 equipment 2) Control transformers necessary for providing power to controls for Division 23 equipment.. 3) Line voltage thermostats 4) Low or non-load voltage control components 5) Remote bulb thermostats 6) Non-life safety related valve or damper actuators 7) Float switches 8) Solenoid valves, EP and PE switches 9) Refrigeration controls. (Division 26 provides power to refrigeration panels.) f. FIRE AND LIFE SAFETY EQUIPMENT: 1) Fire/Smoke Dampers: Division 23 is responsible for providing and physicallyinstalling the damper and for installing any required control interface wiring to Division 23 contplsision 23 a) Where fire/smoke dampers are part of an integrated smoke control system, is responsible for providing dampers with necessary end switches for proof of closure (see Section 233113.) detection system, i b) Where these dampers are not part of an integrated area wide smoke Division 23 is responsible for providing each fire/smoke damper with a dedicated duct detector installed per the requirements of the building code (see Section 233113). If not i integral with the damper assembly, the detector is to be installed by Div. 23 but wired for damper control by Div. 26. I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 00 COMMON WORK RESULTS FOR ELECTRICAL Page 9 of 10 2) Fire Sprinkler System: Division 23 is responsible for providing necessary controls including flow switches and alarm bells. 3) Specialized fire suppression systems: Division 23 is res g system controls and any required control interface wiring to these ntrols.nDiv scion 26 responsible for bringing power to point of connection with the system. g. Division 26 has responsibilities for electrically powered or controlled mechanical equipment, which is specified in Division 23 Specifications or scheduled on Division 23 Drawings. The specific division of responsibilities between Division 23 and 26 for furnishing or wiring this I equipment is as follows: 2. Division 26 Electrical Responsibilities: a. MOTORS: Provide the power wiring for the motors. b. MAGNETIC STARTERS: Except where magnetic starters are factory installed on Division 23 factory assembled equipment, Division 26 is to install magnetic starters furnished by Division 23 and install the necessary power wiring to the starter and from the starter to the motor. In the case of factory installed starters, Division 26 is to install the necessary 1 c. VARIABLE FREQUENCY DRIVES: Physically mount all VFD's, which a ering not specified to be installed on Division 23 factory assembled equipment. Provide the necessary power wiring to the VFD and from the VFD to the motor except in the case of factory installed VFD's where wiring between the motor and VFD is to be by Division 23. Where disconnects are installed between a VFD and a motor provide the interlocking wiring between the disconnect and VFD to ensure that the drive is shutdown simultaneously with motor. d. DISCONNECTS: Provide all disconnects necessary for Division 23 mechanical equipment which III are not provided as part of factory wired Division 23 equipment. Service disconnects shall be placed at all mechanical equipment locations. Provide power wiring to all disconnects. In addition, provide power wiring between motor and disconnect when the disconnect is not factory installed. See also Variable Frequency Drive above for special wiring requirements. 1; e. CONTROLS: Division 26 Contractor is responsible for providing power to control panels and control circuit outlets. f. FIRE AND LIFE SAFETY EQUIPMENT: 1) Fire/Smoke Dampers: Division 26 is responsible for power wiring to the damper and as I` follows: a) Where these dampers are part of an integrated smoke control system Division 26 is responsible for providing the detectors and for all fire detection system wiring necessary to integrate dampers and related end switches into the system. b) Where these dampers are not part of an integrated area wide smoke detection system, Division 23 is responsible for providing each fire/smoke damper with a dedicated duct detector installed per the requirements of the building code (see Section 233113). If not integral with the damper assembly, the detector is to be installed by Div. 23 but wired for damper control by Div. 26. 2) Fire Sprinkler System: Division 26 is responsible for providing power wiring to fire protection controls including flow switches and alarm bells. 3) Specialized fire suppression systems: Division 26 is responsible for providing power wiring to suppression system and its controls. 3. Coordinate with other work, including wires/cables, raceway and equipment installation, as necessary to properly interface installation of electrical connections for equipment with other work. 4. Connect electrical power supply conductors to equipment conductors in accordance with equipment manufacturer's written instructions and wiring diagrams. Mate and match conductors of electrical connections for proper interface between electrical power supplies and installed equipment. 5. Maintain existing electrical service and feeders to occupied areas and operational facilities, unless otherwise indicated, or when authorized otherwise in writing by Owner, or Architect/Engineer. Provide temporary service during interruptions to existing facilities. When necessary, schedule momentary outages for replacing existing wiring systems with new wiring systems. When that"cutting-over" has been successfully accomplished, remove, relocate, or abandon existing wiring as indicated. Ith6. Cover splices with electrical insulating material equivalent to, or of greater insulation resistivity rating, an electrical insulation rating of those conductors being spliced. 7. Prepare cables and wires, by cutting and stripping covering armor,jacket, and insulation properly to ensure uniform and neat appearance where cables and wires are terminated. Exercise care to avoid I DURHAM EDUCATION CENTER SECTION 26 05 00Page 10 of 10 082217 COMMON WORK RESULTS FOR ELECTRICAL 1 cutting through tapes which will remain on conductors. Also avoid "ringing" copper conductors while skinning wire. 3.5 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS II A. Electrical penetrations occur when raceways, floor cables, wireways,nd l asceblees.rays, or busways penetrate concrete slabs, concrete or masonry walls, or fire-rated B. Concrete Slabs and Walls: Installlrsl enn of slabs andtrtionwasunless core-drilled holes or formed openings are used. Install sleeves during C. Use pipe sleeves unless penetration arrangement requires rectangular sleeved d owalpensemblies unless 11, ning. D. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor an openings compatible with firestop system used are fabricated during construction of floor or wall. E. Cut sleeves to length for mounting flush with both surfaces of walls. level. i F. Extend sleeves installed in floors 2 inches (50 mm)above finished floor G. Size pipe sleeves to provide 1/4-inch (6.4-mm)annular clear space between sleeve and raceway or cable, unless indicated otherwise. I H. Seal space outside of sleeves with grout for penetrations of concrete and masonry 1. Promptly pack grout solidly between sleeve and wall so no voids remain. Tool exposed surfaces smooth; protect grout while curing. and I I. Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space between sleeve awnd raceway or cable, using joint sealant appropriate for size, depth, and location of joint. Comply ith requirements in Division 07 Section "Joint Sealants.". of walls, partitions, ceilings, and floors at J. Fire-Rated-Assembly Penetrations: Maintain indicated fire rating raceway and cable penetrations. Install sleeves and seal raceway and cable penetration sleeves with firestop materials. Comply with requirements in Division 07 Section"Penetration Firestopping." K. Roof-Penetration Sleeves: Seal penetration of individual raceways and cables with flexible boot-type 11 flashing units applied in coordination with roofing work. L. Aboveground, Exterior-Wall Penetrations: c steelenetrations using pipe mechanical sleeve seals. Select sleeve size to for 1-inch (25-mm) annlarclearspace between pipe and sleeve for installing mechanical sleeve seals. 1-inch M. Underground, Exterior-Wall airacewayl cast-iron orcable andpe sleeves. Size sleeves to sleeve for installing mechanical sleeve seals. (25-mm)annular clear space between 3.6 SLEEVE-SEAL INSTALLATION if A. Install to seal exterior wall penetrations. II by manufacturer B. e size. type ando number of ay or sealing elle in center of sleeve.dAssemble mechanicar ls sleeve sealscable and installmaterial inand size. Position raceway or cab annular space between raceway or cable and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal. 3.7 FIRESTOPPING A. Apply firestopping to penetrations of fire-ratedFestopp ig materials anfloor and wall lies d nstal alti nr'requiremen'ts are to restore original fire-resistance rating of assembly. specified in Division 07 Section "Penetration Firestopping." END OF SECTION 1 I I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 19 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES Page 1 of 4 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMARYDivision 01 Specification Sections, apply to this Section. A. Section Includes: 1. Copper building wire rated 600 V or less. 2. Metal-clad cable, Type MC, rated 600 V or less. 3. Photovoltaic cable, Type PV, rated 2000 V or less. 4. Connectors, splices, and terminations rated 600 V and less. 1.3 DEFINITIONS A. PV: Photovoltaic. 1 B. RoHS: Restriction of Hazardous Substances. C. VFC: Variable-frequency controller. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product. B. Product Schedule: Indicate type, use, location, and termination locations. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For testing agency. B. Field quality-control reports. 1.6 QUALITY ASSURANCE A. Testing Agency Qualifications: Member company of NETA. 1. Testing Agency's Field Supervisor: Certified by NETA to supervise on-site testing. PART 2- PRODUCTS 2.1 COPPER BUILDING WIRE A. Description: Flexible, insulated and uninsulated, drawn copper current-carryin conductor insulation layer or jacket, or both, rated 600 V or less. g with an overall B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. General Cable Technologies Corporation. 2. Okonite Company(The). 3. Southwire Company. C. Standards: 1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended lo- cation and use. 2. RoHS compliant. 3. Conductor and Cable Marking: Comply with wire and cable marking according to UL's "Wire and Cable Marking and Application Guide." D. Conductors: Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors. E. Conductor Insulation: 1. Type THHN, THWN and XHHW: Comply with UL 83 and NEMA WC 70. F. Shield: 2.2 METAL-CLAD CABLE, TYPE MC A. Description:A factory assembly of one or more current-carrying insulated conductors in an overall metallic sheath. I DURHAM EDUCATION CENTER SECTION 26 05 19 Page 0 o1 4 082217 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. General Cable Technologies Corporation. 2. Okonite Company(The). 3. Southwire Company. C. Standards: qualified Listed and labeled as defined in NFPA 70, by a testing agency, and marked for intended lo- cation and use. 2. Comply with UL 1569. 3. RoHS compliant. 4. Conductor and Cable Marking: Comply with wire and cable marking according to UL's"Wire and Cable Marking and Application Guide." D. Circuits: 1. Single circuit and multicircuit with color-coded conductors. E. Conductors: Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors. F. Ground Conductor: Insulated. G. Conductor Insulation: 1. Type THHN/THWN: Comply with UL 83. H. Armor:Aluminum, interlocked. I. Jacket: PVC applied over armor. 2.3 PHOTOVOLTAIC CABLE, TYPE PV A. Description: Flexible, insulated and urin Mate d , drawn V. copper current-carrying conductor with an overall 000] insulation layer or jacket, or both, j products by one of the following: 111B. Manufacturers: Subject to compliance with requirements, provide 1. General Cable; General Cable Corporation. 2. Southwire Company. 1 C. Standards: 1. Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intendedlo- cation and use. 2. RoHS compliant. 3. Conductor and Cable Marking: Comply with wire and cable marking according to UL's"Wire and Cable Marking and Application Guide." D. Conductors: Copper, complying with ASTM B 3 for bare annealed copper and with ASTM B 8 for stranded conductors. E. Conductor Insulation: Comply with UL 44 and UL 4703. 2.4 CONNECTORS AND SPLICES material,type, and A. Description: Factory-fabricated connectors, splices, and lugs of size, ampacity rating, class for application and service indicated;eanded and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. 3M Electrical Products. 2. Hubbell Power Systems, Inc. 3. Thomas&Betts Corporation; A Member of the ABB Group. C. Jacketed Cable Connectors: For steel and aluminum jacketed cables, zinc die-cast with set screws, designed to connect conductors specified in this Section. D. Lugs: One piece, seamless, designed to terminate conductors specified in this Section. 1. Material: Copper. 2. Type: Two hole with standard barrels with number to match number of conductors indicated. 3. Termination: Compression. DURHAM EDUCATION CENTER 082217 SECTION 26 05 19 II LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES Page 3 of 4 PART 3- EXECUTION t3.1 CONDUCTOR MATERIAL APPLICATIONS A. Feeders: Copper; stranded for No. 18 AWG and larger. B. Branch Circuits: Copper; stranded for No. 18 AWG and larger. C. Power-Limited Fire Alarm and Control: Solid for No. 12 AWG and smaller. D. PV Circuits: Copper. Stranded for No. 18 AWG and larger. 11 3.2 CONDUCTOR INSULATION AND MULTICONDUCTOR CABLE APPLICATIONS AND WIRING METHODS A. Service Entrance: Type THHN/THWN-2, single conductors in raceway. B. Exposed Feeders: Type THHN/THWN-2, single conductors in raceway. I C. Feeders Concealed in Ceilings, Walls, Partitions, and Crawlspaces: Type THHN/THWN-2 conductors in raceway. single D. Feeders Concealed in Concrete, below Slabs-on-Grade, and Underground: Type THHN/THWN-2, single i conductors in raceway. E. Exposed Branch Circuits, Including in Crawlspaces: Type THHN/THWN-2, single conductors in raceway. F. Branch Circuits Concealed in Ceilings, Walls, and Partitions: Metal-clad cable, Type MC. G. Branch Circuits Concealed in Concrete, below Slabs-on-Grade, and Underground: Type THHN/THWN-2, single conductors in raceway. 111 H. Cord Drops and Portable Appliance Connections: Type SO, hard service cord with stainless-steel, wire- mesh, strain relief device at terminations to suit application. I. PV Circuits: Type USE-2 for PV source circuits rated at 600 V or less. i3.3 INSTALLATION OF CONDUCTORS AND CABLES A. Conceal cables in finished walls, ceilings, and floors unless otherwise indicated. ISB. Complete raceway installation between conductor and cable termination points according to ection 260533 "Raceways and Boxes for Electrical Systems"prior to pulling conductors and cables. C. Use manufacturer-approved pulling compound or lubricant where necessary; compound used must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended maximum pulling tensions II and sidewall pressure values. D. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will not damage cables or raceway. E. Install exposed cables parallel and perpendicular to surfaces of exposed structural members, and follow surface contours where possible. F. Support cables according to Section 260529 "Hangers and Supports for Electrical Systems." 1 3.4 CONNECTIONS A. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A-486B. B. Make splices, terminations, and taps that are compatible with conductor material and that possess equivalent or better mechanical strength and insulation ratings than unspliced conductors. C. Wiring at Outlets: Install conductor at each outlet, with at least 6 inches (150 mm). I 3.5 IDENTIFICATION A. Identify and color-code conductors and cables according to Section 260553 "Identification for Electrical Systems." i B. Identify each spare conductor at each end with identit num identify as spare conductor. Y ber and location of other end of conductor, and I I DURHAM EDUCATION CENTER SECTION 26 05 19 Page 4 of 4 082217 LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES I 3.6 SLEEVE AND SLEEVE-SEAL INSTALLATION FOR ELECTRICAL PENETRATIONS es. Comply with A. Install r sleeves and sleevetion seals "Sleevesapaand Sleeve Seals for Electons of exterior floor and rical cal Racewall ays and Cabling."requirements in Section 260544 3.7 FIRESTOPPING A. Apply firestopping to electrical penetrations of fire-rated floor and wall assemblies to restore original fire- resistance rating of assembly according to Section 078413"Penetration Firestopping." 3.8 FIELD QUALITY CONTROL i A. Testing Agency: Engage a qualified testing agency to perform tests and inspections. 1. After installing conductors and cables snd ll conductors to sre leated 100A and gctrical circuitry aeates efon ecompl'ance with nergized, test ice entrance and feeder conductors and re- quirements. i 2. Perform each of the following visual and electrical tests: a. Inspect exposed sections of conductor and cable for physical damage and correct connection according to the single-line diagram. b. Test bolted connections for high resistance using one of the following: 1) A low-resistance ohmmeter. 2) Calibrated torque wrench. 3) Thermographic survey. c. Inspect compression-applied connectors for correct cable match and indentation. d. Inspect for correct identification. e. Inspect cable jacket and condition. f. conductors. Apply a test ti l of 500 V dc for 300 V rach conductor rated 00A or greater for ground and adjacent ated cable and 1000 V do for 600 V rated conductors. Apply a potentia cable for a one-minute duration. g. Continuity test on each conductor and cable. h. Uniform resistance of parallel conductors. B. Cables will be considered defective if they do not pass tests and inspections. C. Prepare test and inspection reports to record the following: 1. Procedures used. 2. Results that comply with requirements. 3. Results that do not comply with requirements, and corrective action taken to achieve compliance with requirements. END OF SECTION I it 111 I i I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 26 J GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS Page 1 of 5 1 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMDivisionARY 01 Specification Sections, apply to this Section. A. Section includes grounding and bonding systems and equipment. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product indicated. 1.4 INFORMATIONAL SUBMITTALS 111 A. Coordination Drawings: Plans showing dimensioned locations of grounding features specified in "Field Quality Control"Article, including the following: 1. Test wells. 2. Ground rods. 3. Grounding arrangements and connections for separately derived systems. B. Qualification Data: For testing agency and testing agency's field supervisor. 111 C. Field quality-control reports. 1.5 CLOSEOUT SUBMITTALS 111 A. Operation and Maintenance Data: For grounding to include in emergency, operation, and maintenance manuals. 1. In addition to items specified in Section 017823 "Operation and Maintenance Data,"include the follow- ing: a. Plans showing as-built, dimensioned locations of grounding features specified in "Field Quality Control"Article, including the following: 1) Test wells. I2) Ground rods. 3) Grounding arrangements and connections for separately derived systems. b. ADD ALTERNATE (to be discussed with owner) Instructions for periodic testing and inspection of grounding features at test wells, and grounding connections for separately derived systems based on NETA MTS. 1) Tests shall determine if ground-resistance or impedance values remain within specified max- imums, and instructions shall recommend corrective action if values do not. 1.6 QUALITY 2) Include recommended testing intervals. ASSURANCE A. Testing Agency Qualifications: Certified by NETA. 1 PART 2- PRODUCTS 2.1 SYSTEM DESCRIPTION 111 A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, b testing agency, and marked for intended location and application. y a qualified B. Comply with UL 467 for grounding and bonding materials and equipment. 2.2 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Burndy; Part of Hubbell Electrical Systems. 2. ERICO International Corporation. ■ 3. Thomas& Betts Corporation;A Member of the ABB Group. 2.3 CONDUCTORS A. Insulated Conductors: Copper wire or cable insulated for 600 V unless otherwise Code or authorities having jurisdiction. required by applicable I 6 DURHAM EDUCATION CENTER P 2 05 age 2 of26 5 082217 SECTION GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS 1 B. Bare Copper Conductors: 1. Solid Conductors: ASTM B 3. 2. Stranded Conductors:ASTM B 8. 3. Tinned Conductors: ASTM B 33. diameter. 4. Bonding Cable: 28 kcmil, 14 sNon6 AAWG stranded conductoror, 1/4 inch (6 mm) in 1-5/8 inches (41 5. Bonding Conductor: No.4 or 6. Bonding Jumper: Copper tape, braided conductors terminated with copper ferrules; mm)wide and 1/16 inch (1.6 mm)thick. 7. Tinned Bonding Jumper:Tinned-copper tape, braided conductors terminated withcopper ferrules; 1- co p 5/8 inches (41 mm)wide and 1/16 inch (1.6 mm)thick. 1/4 by4 inches (6.3 by 100 mm) in cross C. Grounding Bus: Predrilled rectangular bars of annealed copper, Stand-off section, with holes spaced at standard connection fors use in switchboarde apart unless s, V1 and shall be Lexan oif insulators for mounting shall comply with UL 8 PVC, impulse tested at 5000 V. 2.4 CONNECTORSTL acceptable to authorities having on applications in which used A. Listed and labeled by sizes,n and combinations of conductors and otheritemsconnected. and for specific types, Y kit manufacturer for materials in B. Welded Connectors: Exothermic-welding kits of types recommended by being joined and installation conditions. II copper Bus-Bar Connectors: Compression type, copper or alloy, with two wire terminals. D. Beam Clamps: Mechanical type, terminal, ground wire access from four directions, with dual, tin-plated or silicon bronze bolts. er or copper alloy. E. Cable-to-Cable Connectors: Compression type, copp F. Cable Tray Ground Clamp: Mechanical type, zinc-plated malleable iron. G. Conduit Hubs: Mechanical type, terminal withthreaded hub.alloy,terminal with hex head bolt. H. Ground Rod Clamps: Mechanical type, coppercopper per alloy,terminal with hex head bolt. I. Ground Rod Clamps: Mechanical type, copper or direct burial terminal with set screw. J. Lay-in Lug Connector: Mechanical type, copper K. Signal Reference Grid Clamp: Mechanical type, stamped-steel terminal with hex head screw. L. Straps: Solid copper, copper lugs. Rated for 600 A. M. U-Bolt Clamps: Mechanical type, copper or copper alloy, terminal listed for direct burial. N. Water Pipe Clamps: I 1. Mechanical type, two pieces with zinc-plated bolts. a. Material: Die-cast zinc alloy. b. Listed for direct burial. connector 2. U-bolt type with malleable-iron clamp and copper ground 2.5 GROUNDING ELECTRODES A. Ground Rods: Copper-clad steel 3/4 inch by 10 feet(19 mm by 3 m). PART 3- EXECUTION 3.1 APPLICATIONS A. Conductors: Install solid conductor for No. 14 AWG and smaller, and stranded conductors for No. 12 AWG and larger unless otherwise indicated. conductor, No. 2/0 AWG minimum. B. Underground Grounding Conductors: Install bare copper 1. Bury at least 24 inches (600 mm) below grade. C. Isolated Grounding Conductors: Green-coloredinsu ation with continuous yellow stripe.visible to normal inspection,with alta nat ngn ebands of isolated ground, identify grounding conductorI green and yellow tape,with at least three bands of green and two bands of yellow. I 1 DURHAM EDUCATION CENTER 082217 GROUNDING AND BONDING FOR ELECTRICAL SECTION 26 05 26 Page 3 of 5 SYSTEMS D. Grounding Bus: Install in electrical equipment rooms, in rooms housing service equipment, 11 as indicated. and elsewhere 1. Install bus horizontally, on insulated spacers 2 inches (50 mm)minimum from wall, 6 inches mm) above finished floor unless otherwise indicated. 2. Where indicated on both sides of doorways, route bus up to top of door frame, across top (1 or50 ay, I and down; connect to horizontal bus. E. Conductor Terminations and Connections: of doorway, 1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors. 1 2. Underground Connections: Welded connectors except at test wells and as 3. Connections to Ground Rods at Test Wells: Bolted connectors. otherwise indicated. 4. Connections to Structural Steel: Welded connectors. 3.2 GROUNDING AT THE SERVICE A. Equipment grounding conductors and grounding electrode conductors shall be connected to the ground bus. Install a main bonding jumper between the neutral and ground buses. I 3.3 GROUNDING UNDERGROUND DISTRIBUTION SYSTEM COMPONENTS A. Refer to utility company grounding standards for all utility underground distributionsystem components. grounding iii 3.4 EQUIPMENT GROUNDING A. Install insulated equipment grounding conductors with all feeders and branch B. Air-Duct Equipment Circuits: Install insulated equipment grounding conductor to duct-mounted devices operating at 120 V and more, including air cleaners, heaters, dampers, humidifiers, electrical equipment. Bond conductor to each unit and to air duct and connected metallicpiping.electrical C. Water Heater: Install a separate insulated equipment groundingconductor and other duct and heat-tracing cable. Bond conductor to heater units, to each electric water heater D. Isolated Grounding Receptacle Circuits: Install an insulatedr quipmenttg grounding conducted equipment, andor components. the receptacle grounding terminal. Isolate conductor from raceway and from panelboard grounding terminals. Terminate at equipment grounding conductor terminal of the applicable derived connectedoto service unless otherwise indicated. g ng ed system or E. Isolated Equipment Enclosure Circuits: For designated equipment supplied by a branch circuit or feeder, isolate equipment enclosure from supply circuit raceway with a nonmetallic raceway fitting listed for the purpose. Install fitting where raceway enters enclosure, and install a separate insulated equipment grounding conductor. Isolate conductor from raceway and from panelboard grounding terminals. Terminate at equipment grounding conductor terminal of the applicable derived system or service unless otherwise indicated. F. Poles Supporting Outdoor Lighting Fixtures: Install grounding electrode and a sear equipment grounding conductor in addition to grounding conductor installed with branch-circuit conductors. 3.5 INSTALLATION separate insulated A. Grounding Conductors: Route along shortest and straightest paths possible unless otherwise required by Code. Avoid obstructing access or placing conductors where they may be subjected to impact, or damage. indicated or B. Ground Bonding Common with Lightning Protection System: Comply with NFPA 780strain, interconnecting with lightning and UL 96 when 9 g protection system. Bond electrical power system ground directly to lightning protection system grounding conductor at closest point to electrical service grounding electrode. Use bonding conductor sized same as system grounding electrode conductor, and install in conduit. C. Ground Rods: Drive rods until tops are 2 inches (50 mm) below finished floor or finalrade I otherwise indicated. 1. Interconnect ground rods with grounding electrode conductor below grade and as otherwise Make connections without exposing steel or damaging coating if any. 2. Use exothermic welds for all below-grade connections. rwse indicated. 3. For grounding electrode system, install at least three rods spaced at least one-rod length from other and located at least the same distance from other grounding electrodes, and connect to the - vice grounding electrode conductor. 9 each ser DURHAM EDUCATION CENTER 26 SECTION 2 60526 Pa4of5 082217 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS drilled hole in bottom of handhole. Handholes are specified in D. Test Wells: Ground rod driven throughs for Electrical Systems," and shall be at least 12 inches Sectionn22660543 "Underground Ducts and Raceway (300 mm)deep, with cover. wise in c Install 1. Install at least one test well for each service unless othf llsh witted i aced. grade at the e ground rode ec- trically closest to service entrance. Set top of test Straps and Jumpers: Install in locations accessible for inspection and maintenance except where E. Bonding p routed through short lengths of conduit. care not to penetrate any adjacen t 1. Bonding to Structure: Bond straps directly to basic structure,taking Supports: Install bonding so vibra- parts. Hangers andpp 2. Bonding to Equipment Mounted on Vibration Isolation n tion is not transmitted to rigidly mounted equip 3. Use exothermic-welded connectors for outdoor locations; if a disconnect-type connection is required, use a bolted clamp. F. Grounding and Bonding for Piping: coppergrounding conductors, in conduit,from building's 1. mainnl Water equipment, Pipe:orIgrounding insulated connector lord bolt ane service equipment, bus, to main metal water service entrances to building. Connect pipes; use a bolted clamp lug- typegr pconnectornn conductors to main bywater ne ofltheg bolts of the flange.Where a dielectric main wa- ter flange by using to a pipe9 fitting is installed, connect grounding each conductor on street side of fitting. Bond metal groundingConect to con- ductor conduit or sleeve to conductor at to electrically bypass water mete p g: braided-type bonding jumpers 2, Water Meter Piping: Use pipe with a bolted connector. in system downstream from equipment shutoff valve. 3. Bond each aboveground portion of gas piping y to NFPA 70; electrically G. Concrete-Encased coated Grounding Electrode (Ufer Ground): Fabricate according If reinforcing usingis in multiple t 20 feet pieces,conductive oteo steel reinforcing the ual steel tie wirresbars or rods, at eorsexothemic welding o create the required length. pieces, connect together by on or sis is H. . Select Connections: Make connections so possibility of galvanic connectio'n methods soymetals in direct are connectors, connection hardware, conductors, and galvanically compatible. 1. Use electroplated or hot-tin-coated materials to ensure high conductivity and to make contactpoints closer in order of galvanic series. bare metal at points of contact. 2. Make connections with clean, ions with stainless-steel separators and mechanical me clamps. 1 3. Make aluminum-to-steel connect 4. Make aluminum-to-galvanized-steel connections with tin-plated copper jumpers and clamps. dissimilar metals with inert material to prevent future penetration of 5. Coat and seal connections having moisture to contact surfaces. 3.6 FIELD QUALITY CONTROL A. Testing Agency: Engage a qualified testing agency to perform tests and inspections. test for B. Tests and Inspections: 1. After installing grounding system but before permanent electrical circuits have been energized, compliance with requirements. Verifytightness of accessible, bolted, electrical connec- II 2. Inspect physical and mechanical conditionrench according o manufacturer's written instructions. eci- tions completed a ebrated torque nsystem at each location where a maximum ground-resistance level is sp grounding ground test wells. Make tests at ground 3, fled, t servicegrounding terminal, at fied, at disconnect enclosure g greci itation and without rods before any conductors are connected. a. Measure ground resistance no fewer than two full days after last trace of pr and without chemical soil being moistened by any means other than natural doundge or res stanceag e natural treatment or other artificial means of reducing b. Perform tests by fall-of-potential method according to IEEE 81. dimensioned Drawings locating each test well, ground rod and ground-rod assembly, and 4. Prepare other grounding electrodes. Identify each by letter in alphabetical order, and key to the record of tests and observations. Include the number of rods driven and their depth at each location, and include o - 1 DURHAM EDUCATION CENTER 082217 SECTION 26 05 26 GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS Page 5 of 5 servations of weather and other phenomena that may affect test results. Describe measures taken to improve test results. C. Grounding system will be considered defective if it does not pass tests and inspections. D. Prepare test and inspection reports. iE. Report measured ground resistances that exceed the following values: A 1. Grounding system resistance not to exceed 5 ohms F. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Architect promptly and include recommendations to reduce ground resistance. END OF SECTION I I I I I I I I I I V I I DURHAM EDUCATION CENTER 082217 HANGERS AND SUPPORTS FOR ELECTRICAL S SECTION 26 05 29 Page 1 of 4 YSTEMS 1 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Steel slotted support systems. 2. Aluminum slotted support systems. 3. Nonmetallic slotted support systems. 11 4. Conduit and cable support devices. 5. Support for conductors in vertical conduit. 6. Structural steel for fabricated supports and restraints. 7. Mounting, anchoring, and attachment components, includin g powder-actuated fasteners, mechanical expansion anchors, concrete inserts, clamps, through bolts, toggle bolts, and hanger rods. 8. Fabricated metal equipment support assemblies. B. Related Requirements: 1 1. Section 260548.16 "Seismic Controls for Electrical Systems"forp roducts and installation requirements necessary for compliance with seismic criteria. 1.3 ACTION SUBMITTALS IA. Product Data: For each type of product. 1. Include construction details, material descriptions, dimensions of individual and finishes for the following: 2. Slotted support components and profiles, systems, hardware, and accessories. 3. Clamps. 4. Hangers. 5. Sockets. 6. Eye nuts. 7. Fasteners. 8. Anchors. 9. Saddles. 10. Brackets. 11. Include rated capacities and furnished specialties and accessories. B. Shop Drawings: Signed and sealed by a qualified professional engineer. For fabricate details for electrical hangers and support systems. 1. Hangers. Include product data for components. on and installation 2. Slotted support systems. 1 3. Equipment supports. 4. Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment. Include adjustable motor bases, rails, and frames for equipment mount- ing. 1.4 INFORMATIONAL SUBMITTALS p t A. Coordination Drawings: Reflected ceiling plan(s)and other details, drawn to scale, on items are shown and coordinated with each other, using input from installers of the items involved: 1. Suspended ceiling components. which the following 2. Ductwork, piping, fittings, and supports. 3. Structural members to which hangers and supports 1 4. Size and location of initial access modules foracoustical tile attached.. 5. Items penetrating finished ceiling, including the following: 6. Luminaires. 7. Air outlets and inlets. 8. Speakers. 9. Sprinklers. 10. Access panels. I DURHAM EDUCATION CENTER SECTION 26 05 29 Page 2 of 4 082217 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS 11. Projectors. orfs for electrical equipment and systems, s B. Seismic Qualification Donents,from tmanufactu,for reers and suppis based on actual test of assembled accessories, and comp 1. Basis for Certification: Indicate whether withstand certificationgravity and locate and describe components ensione or on calculation.s of Equipment Unit: Identify center of g Y 2. Dimensioned Outline Drawing mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the certification is based and their in- stallation requirements. 1.5 QUALITY ASSURANCE 1 1. Comply with NFPA 70. 2. Comply with NECA 1 and NECA 101. PART 2- PRODUCTS 2.1 PERFORMANCE REQUIREMENTS qualified professional engineer, as defined in Section 014000"Quality 0 A. Requirements,"elegated Design:design er and support system. to hang Performance: Hangers and supports shall withstand the effects of earthquake motions determined B. Seismic according to ASCE/SEI 7. lace without orted equipment and systems will remain in p 1. The term "withstand" means"the dupe on equipment and sepa- ration of any parts when subjected after the seismic ethe seismic �rces ent�specified and the supp systems will be fully operational 2. Component Importance Factor: 1.25. 2.2 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS (10-mm-) Slotted Support Systems: Preformed steel channelsand a tea gles ove surface. minimum 13/32-inch- A. Steel products by one of the following: ameta holes at a maximum of 8 inches I ance with0requirements, provide 1. Manufacturers: Subject to comp a. Allied Tube &Conduit; a part of Atkore International. b. B-line, an Eaton business. c. ERICO International Corporation. d. Thomas&Betts Corporation; A Member of the ABB Group. e. Unistrut; Part of Atkore International. 11 2. Standard: Comply with MFMA-4 factory- fabricated components for field assembly. Accessorie 3. Material for Channel, Fittings, and applicable load criteria.s: G Metallicalvanized steel. to MFMA-4. 4. Channel Width: Selected forgalvanized after fabrication and applied according 5. Coatings: Hot-dip Cable Support Devices: Steel hangers, clamps, and associated fittings, designed for types an d B. Conduit and sizes of raceway or cable to be supported. C. Support for Conductors in Vertical Conduit: Factory-fabricated assembly consisting of threaded body and plug or plugs for nonarmored electrical conductors asrrequ red to suit individual conduits. condu cors s insulating wedging shall have number, size, and shape e made of maltearbpe iron. and bars; or cables supported. Body Structural Steel for Fabricated Supports and Restraints: ASTM A 36/A 36M steel plates, shapes, D. supports to black and galvanized. in Anchoring, and Attachment Components: Items for fastening electrical items or their E. Mounting, portland cement concrete, 1.building surfaces includedFasteners:the Thr a ene for suppoced loads ncr building 1, Peel, or wood,w htensin, shears, and pullout capacities appropriate e steel, or wood,with tension, products by one of the materials where used. a. Manufacturers: Subject to complianceprovide with requirements, following: 1) Hilti, Inc. 2) ITW Ramset/Red Head; Illinois Tool Works, Inc. I DURHAM EDUCATION CENTER 082217 SECTION 26 05 29 1 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS Page 3 of 4 3) MKT Fastening, LLC. I4) Simpson Strong-Tie Co., Inc. 2. Mechanical-Expansion Anchors: Insert-wedge-type, zinc-coated steel, for use in hardened portland cement concrete, with tension, shear, and pullout capacities appropriate for supported loads and build- ing materials where used. a. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1) B-line, an Eaton business. 1 2) Hilti, Inc. 3) ITW Ramset/Red Head; Illinois Tool Works, Inc. 4) MKT Fastening, LLC. 3. Concrete Inserts: Steel or malleable-iron, slotted support system units are similar to MSS Type 18 4. Clamps for Attachment to Steel Structural Elements: MSS SP-58 units are suitable for attached struc- tural element. 11 5. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM A 325. 6. Toggle Bolts:All-steel springhead type. 7. Hanger Rods: Threaded steel. 2.3 FABRICATED METAL EQUIPMENT SUPPORT ASSEMBLIES A. Description: Welded or bolted structural-steel shapes, shop or field fabricated to fit dimensions of supported equipment. IB. Materials: Comply with requirements in Section 055000 "Metal Fabrications"for steel shapes and plates. PART 3- EXECUTION 3.1 APPLICATION A. Comply with the following standards for application and installation requirements of hangers and supports, except where requirements on Drawings or in this Section are stricter: 1. NECA 1. 2. NECA 101 B. Comply with requirements in Section 078413 "Penetration Firestopping" installation for penetrations through fire-rated walls, ceilings, and assemblies�restopping materials and C. Comply with requirements for raceways and boxes specified in Section 260533 "Raceways and Boxes for Electrical Systems." D. Maximum Support Spacing and Minimum Hanger Rod Size for Raceways: Space supports and RMC as required by NFPA 70. Minimum rod size shall be 1/4 inch (6 mm) in diameter. for EMT, IMC, E. Multiple Raceways or Cables: Install trapeze-type supports fabricated sized so capacity can be increased by att least 25 percent ofutu a whout exceed ngsupport with steel sloed system, specified design load limits. 1. Secure raceways and cables to these supports with single-bolt conduit clamps using spring friction ac- tion for retention in support channel. J3.2 SUPPORT INSTALLATION A. Comply with NECA 1 and NECA 101 for installation requirements except as specified in this article. B. Raceway Support Methods: In addition to methods described in NECA 1, EMT IMC and RMC may be I supported by openings through structure members, according to NFPA 70. C. Strength of Support Assemblies:Where not indicated, select sizes of components so strength will be adequate to carry present and future static loads within specified loading limits. Minimum static design load used for strength determination shall be weight of supported components plus 200 lb (90 kg). D. Attachement to roof deck is prohibited. Do not fasten directly to plywood roof air/vapor barrier. See architectural drawings for top chord joist blockng d to lshing to avoid penetrating i E. Mounting and Anchorage of Surface-Mounted Equipment and Components:Anchor and fasten electrical items and their supports to building structural elements by the following methods unless otherwise indicated by code: I SECTION 26 0 5 29 I DURHAM EDUCATION CENTER Page 4 of 4 082217 HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEM 1. To Wood: Fasten with lag screws or through bolts. Only mount to multi-discipline supports. 2. To New Concrete: Bolt to concrete inserts. 3. To Masonry: Approved toggle-type bolts on hollow masonry units and expansion anchor fasteners on solid masonry units. 4. To Existing Concrete: Expansion anchor fasteners. h D1.1/D1.1 M,with lock washers and nuts. 5. To Steel:Welded threaded studs complying 6. To Light Steel: Sheet metal screws. anelboards, 7. ims Mounted oncontrol enclosures, pull and juow Walls and Nonstructural nuilding ction on boxes,transformersount ,andtother devices on disconnect switches, 1 slotted-channel racks attached to substrate by means that comply with seismic-restraint strength and anchorage requirements. F. Drill holes for expansion anchors in concrete at locations and to depths that avoid the need for reinforcing bars. 3.3 INSTALLATION OF FABRICATED METAL SUPPORTS A. Comply with installation requirements in Section 055000 "Metal Fabrications"for site-fabricated metal supports. B. Cut,fit, and place miscellaneous metal supports accurately in location, alignment, and elevation to support and anchor electrical materials and equipment. C. Field Welding: Comply with AWS D1.1/D1.1M. 3.4 CONCRETE .1M. Iss than 4 inches (100 mm) larger in both A. Construct concrete basesof lmensions indicate , but and so anchors will be anot min mum of 10 bolt diameters from edge of the 111 directions than supportedunit, base. B. Use concrete as specified by others in Section 033000"Cast-in-Place Concrete. C. Anchor equipment to concrete base as follows: 1. Place and secure anchoragedevices. and directions ns fuenished with items tod equipment abeuembeddted. drawings, templates, diagrams, instructions, i 2. Install anchor bolts to elevations required for proper attachment to supported equipment. 3. Install anchor bolts according to anchor-bolt manufacturer's written instructions. 3.5 PAINTINGSf i immedia A. Touchup: Clean field weldsand abradedsame materials as used forshop painting.ng. Comply with Paint after 1 erecting hangers and supports. Use requirements for touching up field-painted surfaces. film thickness of 2.0 mils (0.05 mm). 1. Apply paint by brush or spray to provide minimum dry galvanizing-repair B. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply g paint to comply with ASTM A 780. END OF SECTION I I I I i DURHAM EDUCATION CENTER 082217 RACEWAYS AND BOXES FOR ELEC SECTION 26 05 33 TRICAL SYSTEMS Page 1 of 8 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY p A. Section Includes: 1. Metal conduits and fittings. 2. Nonmetallic conduits and fittings. 3. Boxes, enclosures, and cabinets. 4. Surface Raceways 5. Handholes and boxes for exterior underground cabling. B. Related Requirements: 1. Section 078413 "Penetration Firestopping"for firestopping at conduit and box entrances. 2. Section 260543 "Underground Ducts and Raceways for Electrical Systems"for exterior ks, manholes, and underground utility construction. 3. Section 270528 "Pathways for Communications Systems"for conduits, wireways, surface path ay innerduct, boxes, faceplate adapters, enclosures, cabinets, and ha systems. ndholes sewing communications 1.3 DEFINITIONS IA. GRC: Galvanized rigid steel conduit. B. IMC: Intermediate metal conduit. 1.4 ACTION SUBMITTALS ill A. Product Data: For surface raceways, wireways and fittings, boxes, hfloor ' cabinets. urged-cover enclosures, and B. Shop Drawings: For custom enclosures and cabinets. Include plans, sections, and attachment details. elevations, C. Samples: For wireways nonmetallic wireways and surface raceways and for each color and texture specified, 12 inches (300 mm) long. 1.5 INFORMATIONAL SUBMITTALS A. Coordination Drawings: Conduit routing plans, drawn to scale, on which the following coordinated with each other, using input from installers of items involved: 1. Structural members in paths of conduit groups with common supports. items are shown and 2. HVAC and plumbing items and architectural features in paths oonduit groups with sup- ports. p common B. Qualification Data: For professional engineer. C. Seismic Qualification Data: Certificates, for enclosures, cabinets, and conduit racks and provisions, including those for internal components, from manufacturer. test 1. Basis for Certification: Indicate whether withstand certification is based on actualt their mounting components or on calculation. 2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravityandof assembled 111 mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the locate and describe in- stallation requirements. certification is based and their 4. Detailed description of conduit support devices and interconnections on which the certification D. Source quality-control reports. is I i 11 DURHAM EDUCATION CENTER SECTION 26 05 33 Page 2 of 8 082217 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS PART 2- PRODUCTS 2.1 METAL CONDUITS AND FITTINGSone of the following: 11 A. Metal Conduit with requirements, provide products by 1. Manufacturers: Subject Systems;complianceapart of Atkore International. b. AFC Cable Sy of Atkore International. b. Allied Tube &Conduit; a part c. Western Tube and Conduit Corporation. a ualified testing agency, and d. Wheatland Tube Company. 2. Listing and Labeling: Listed and labeled aas defined in NFPA 70, by q marked for intended NSIlocation and C80 1 and UL 6. 3. GRC: Comply 4. IMC: Comply with ANSI C80.6 and UL 1242. II 5. PVC-Coated Steel Conduit: PVC-coated rigid steel conduit. a. Comply with NEMA RN 1. minimum. b. Coating Thickness: 0.040 and inch (1 mm), UL 797. 6. EMT: Comply with ANSI C80 7. FMC: Comply with UL 1; zinc-coated steel. complying with UL 360. 8. Finish: Flexible Standarde steel finish unlessduit th PVC jacket otherwise noted by architect. 9. Finish: B. Metal Fittings: compliance with requirements, provide products by one of the following: 1. Manufacturers: Subject Systems; a part of Atkore International. b. AFC Cable Sy of Atkore International. b. Allied Tube &Conduit; a part c. Thomas&Beettss Corporation; and Conduit A Member r of the ABB Group. d. Western Tub ation. e. Wheatland Tube Company. a ualified testing agency, and 2. Comply with NEMA FB 1 and UL 514B. 3. Listing and Labeling: Listed and labeled as defined in NFPA 70, by q marked for intended location and application. 4. Fittings, General: Listed and labeled for type of conduit, location,and d se03 and NFPA 70. e. i 5. Conduit Fittings for Hazardous (Classified)Locations: Comply with6. Fittings for EMT: a. Material: Steel. b. Type: Compression. II a complying with UL 651, rated for environmen- 7. Expansion Fittings: PVC or steel to match conduit typ er. tal conditions where installed,a -Coated Conduit: Minimum thickness of 0.040 inch (1 mm),with overlap- and including flexible external bondingjump g. Coating for Fittings for threaded joints. ping sleeves protecting architect. 9. Finish: Standard steel finish unless otherwise noted by authorities having jurisdiction for C. Joint Compound for IMC, or GRC: Approved, as defined in NFPA 70, by use in conduit assemblies, and compounded for use to lubricate and protect threaded conduit joints from corrosion and to enhance their conductivity. 2.2 NONMETALLIC CONDUITS AND FITTINGS by one of the following: A. Conduit: Manufacturers: compliance with requirements, provide products 1. Subject to a. CertainTeed Corporation. b. RACO; Hubbell. a c. Thomas&Betgs Corporation;n A Member of the ABB Group. by qual- ified Listingand Labeling: Nonmetallic conduit shall beclisted on a d appbcationeled S defined in NFPA 70,and 2. and marked for intended to I with NEMA TC 13 ENtesting agency, If noted, comply 3. ENT: Not allowed unless otherwise noted on drawings. with NEMA TC 2 and UL 651 UL 1653. I 4. RNC: Not allowed unless otherwise noted on drawings. If noted, comply unless otherwise indicated. B. Nonmetallic Fittings: DURHAM EDUCATION CENTER 082217 SECTION 26 05 33 1 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS Page 3 of 8 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: i a. CertainTeed Corporation. b. RACO; Hubbell. c. Thomas& Betts Corporation;A Member of the ABB Group. 2. Fittings, General: Listed and labeled for type of conduit, location, and use. I 3. Fittings for ENT and RNC: Comply with NEMA TC 3; match to conduit or tubing type and material. a. Fittings for LFNC: Comply with UL 514B. 4. Solvents and Adhesives:As recommended by conduit manufacturer. I2.3 BOXES, ENCLOSURES, AND CABINETS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. FSR Inc. 0 2. Hoffman; a brand of Pentair Equipment Protection. 3. Hubbell Incorporated. 4. Thomas& Betts Corporation;A Member of the ABB Group. 5. Wiremold/Legrand. B. General Requirements for Boxes, Enclosures, and Cabinets: Boxes, enclosures, and cabinets installed in wet locations shall be listed for use in wet locations. C. Sheet Metal Outlet and Device Boxes: Comply with NEMA OS 1 and UL 514A. D. Cast-Metal Outlet and Device Boxes: Comply with NEMA FB 1, ferrous alloy, Type FD, with gasketed cover. RE. Metal Floor Boxes: 1. Material: Cast metal. 2. Type: Fully adjustable or semi-adjustable. 3. Shape: Rectangular. I/ 4. Listing and Labeling: Metal floor boxes shall be listed and labeled as defined in NFPA 70, by a quali- fied testing agency, and marked for intended location and application. F. Luminaire Outlet Boxes: Nonadjustable, designed for attachment of luminaire weighing 50 lb (23 kg). Outlet 0 boxes designed for attachment of luminaires weighing more than 50 lb (23 kg)shall be listed and marked for the maximum allowable weight. G. Paddle Fan Outlet Boxes: Nonadjustable, designed for attachment of paddle fan weighing 70 lb (32 kg). I 1. Listing and Labeling: Paddle fan outlet boxes shall be listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. H. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1. I I. Cast-Metal Access, Pull, and Junction Boxes: Comply with NEMA FB 1 and UL 1773, cast aluminum with gasketed cover. J. Box extensions used to accommodate new building finishes shall be of same material as recessed box. I K. Device Box Dimensions: 4 inches square by 2-1/8 inches deep (100 mm square by 60 mm dee . L. Gangable boxes are not allowed. p) M. Hinged-Cover Enclosures: Comply with UL 50 and NEMA 250, Type 1 and Type 3R where noted with 11 continuous-hinge cover with flush latch unless otherwise indicated. 1. Metal Enclosures: Steel, finished inside and out with manufacturer's standard enamel. 2. Interior Panels: Steel; all sides finished with manufacturer's standard enamel. 1 N. Cabinets: 1. NEMA 250, Type 1 and Type 3R galvanized-steel box with removable interior panel and removable front, finished inside and out with manufacturer's standard enamel. 2. Hinged door in front cover with flush latch and concealed hinge. III 3. Key latch to match panelboards. 4. Metal barriers to separate wiring of different systems and voltage. 5. Accessory feet where required for freestanding equipment. I 6. Nonmetallic cabinets shall be listed and labeled as defined in NFPA 70, by a qualified testing agenc , and marked for intended location and application. Y I DURHAM EDUCATION CENTER PN 26 05a26 0 3 of 38 082217 SECTIO RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 2.4 HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING A. General Requirements for Handholes and Boxes: s shall be designed and identified as defined in 1. Boxes and handholes for use in underground system NFPA 70,for intended location and application. 2. Boxes installed in wet areas shall be listed and labeled as defined in NFPA 70, by a qualified testing 11 agency, and marked for intended location and application. B. Polymer-Concrete Handholes rand Boxes esin, and reinfth Polymer-Concrete orced ed with steel,fiberglass, or alced of sand combination of and the aggregate,wo. bound togetheru with polymer products by one of the following: 1. Manufacturers: Subject to compliance with requirements, provide a. Oldcastle Enclosure Solutions. b. Oldcastle Precast, Inc. c. Quazite: Hubbell Power Systems, Inc. 2. Standard: Comply with SCTE 77. 3. Configuration: Designed for flush burial with open bottom unless otherwise indicated. 4. Cover:Weatherproof, secured by tamper-resistant locking devices and having structural load rating consistent with enclosure and handhole location. of friction of 0.50. 5. Cover Finish: Nonskid finish shall have a minimum coefficient 6. Cover Legend: Molded lettering, "ELECTRIC.". 7. Conduit Entrance Provisions: Conduit-terminating fittings shall mate with entering ducts for secure, fixed installation in enclosure wall. 8. Handholes 12 Inches Wide by 24 Inches Long (300 mm Wide by 600 mm Long) and Larger: Have in- serts for cable racks and pulling-in irons installed before concrete is poured. 2.5 SOURCE QUALITY CONTROL FOR UNDERGROUND ENCLOSURES 111 A. Handhole and Pull-Box Prototype Test:Test prototypes of handholes and boxes for compliance with SCTE 77. Strength tests shall be for specified tier ratings of products supplied. 1. Strength tests of complete boxes and covers shall be by either an independent testing agency or manufacturer. A qualified registered professional engineer shall certify tests by manufacturer. 2. Testing machine pressure gages shall e current calibration certification complying with ISO 9000 and ISO 10012 and traceable NISTstandards. PART 3- EXECUTION 3.1 RACEWAY APPLICATION A. Outdoors: Apply raceway products as specified below unless otherwise indicated: 1. Exposed Conduit: GRC. 2. Concealed Conduit, Aboveground: GRC. as noted. 3. Connection d CoVibrating GRC op ent(Including TransformersRNC,Type rect buried or concrete and Hydraulic, Pneumatic, Electric Sole- noid, 4. Connection to Vibrating Equipm or Motor-Driven Equipment): LFMC. 3R. 5. Boxes and Enclosures, Aboveground: NEMA 250,Type B. Indoors: Apply raceway products as specified below unless otherwise indicated: 1. Exposed, Not Subject to Physical Damage: EMT. a. Common Space 2. Exposed, Not Subject to Severe Physical Damage: EMT. 3. Exposed and Subject to Severe Physical Damage: GRC. Raceway locations include the following: a. Maker's Lab. b. Mechanical rooms. 4. Concealed in Ceilings and Interior Walls and Partitions: EMT. 5. Connection to Vibrating Equipment(MCuex exceptormers LFMC in dampand doawet locations., ocationstic, Electric Sole- noid, or Motor-Driven Equipment): F 6. Damp or Wet Locations: GRC. 7. Boxes and Enclosures: NEMA 250, Type 1, except use NEMA 250,Type 4 stainless steel in institu- tional and commercial kitchens, and the kitchen in this project, and damp or wet locations. C. Minimum Raceway Size: 3/4-inch (21-mm)trade size. I 1 DURHAM EDUCATION CENTER 082217 SECTION 26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS Page 5 of 8 D. Raceway Fittings: Compatible with raceways and suitable for use and location. I 1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings unless otherwise indi- cated. Comply with NEMA FB 2.10. 2. PVC Externally Coated, Rigid Steel Conduits: Use only fittings listed for use with this type of conduit. Patch and seal all joints, nicks, and scrapes in PVC coating after installing conduits and fittings. Use sealant recommended by fitting manufacturer and apply in thickness and number of coats recom- mended by manufacturer. 3. EMT: Use compression, steel fittings. Comply with NEMA FB 2.10. I4. Flexible Conduit: Use only fittings listed for use with flexible conduit. Comply with NEMA FB 2.20. E. Do not install aluminum conduits, boxes, or fittings in contact with concrete or earth. F. Install surface raceways only where indicated on Drawings. In areas with exposed conduit, contractor shall II install conduit parallel and perpendicular to walls, tight to finished surfaces and in a neat and tidy manner. Contractor to submit shop drawing indicating all conduit routing within commons space for architect review and comment. I G. Do not install nonmetallic conduit where ambient temperature exceeds 120 deg F (49 deg C). 3.2 INSTALLATION A. Comply with requirements in Section 260529 "Hangers and Supports for Electrical Systems"for hangers I and supports. B. Comply with NECA 1 and NECA 101 for installation requirements except where requirements on Drawings or in this article are stricter. Comply with NECA 102 for aluminum conduits. Comply with NFPA 70 I limitations for types of raceways allowed in specific occupancies and number of floors. C. Do not install raceways or electrical items on any"explosion-relief'walls or rotating equipment. D. Do not fasten conduits onto the bottom side of a metal deck roof. I E. Keep raceways at least 6 inches (150 mm)away from parallel runs of flues and steam or hot-w Install horizontal raceway runs above water and steampiping. ater pipes. F. Complete raceway installation before starting conductor installation. 1 G. Arrange stub-ups so curved portions of bends are not visible above finished slab. H. Make bends in raceway using large-radius preformed ells. Field bending shall be according to NFPA 70 minimum radii requirements. Use only equipment specifically designed for material and size involved. I. Conceal conduit within finished walls, ceilings, and floors unless otherwise indicated. Install conduits parallel or perpendicular to building lines. J. Support conduit within 12 inches (300 mm)of enclosures to which attached. i ' K. Raceways Embedded in Slabs: 1. Run conduit larger than 1-inch (27-mm)trade size, parallel or at right angles to main reinforcement. Where at right angles to reinforcement, place conduit close to slab support. Secure raceways to rein- forcement at maximum 10-foot(3-m) intervals. 2. Arrange raceways to cross building expansion joints at right angles with expansion fittings. 3. Arrange raceways to keep a minimum of 1 inch (25 mm)of concrete cover in all directions. I 4. Do not embed threadless fittings in concrete unless specifically approved by Architect for each specific location. 5. Change from ENT to GRC before rising above floor. L. Stub-Ups to Above Recessed Ceilings: 1. Use EMT, IMC, or RMC for raceways. 2. Use a conduit bushing or insulated fitting to terminate stub-ups not terminated in hubs or in an enclo- sure. M. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions:Apply listed compound to threads of raceway and fittings before makingupjoints. Follow compound manufacturer's written instructions. I N. Coat field-cut threads on PVC-coated raceway with a corrosion-preventing conductive compound prior to assembly. I DURHAM EDUCATION CENTER SECTION 26 05 33Page 6 of 8 082217 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS O. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors including conductors smaller than No. 4 Ae at enclosures with locknuts. Install locknuts hand WG. P. Install raceways square to the enclosure and termn tight plus 1/4 turn more. Q. Do not rely on locknuts to penetrate nonconductive co ive coa ti gs o nencsn enclosgrouures. Remove coatings in the locknut area prior to assembling conduit to enclosure path. R. Cut conduit perpendicular to the length. For conduits 2-inch (53-mm)trade size and larger, use roll cutter or a guide to make cut straight and perpendicular to the length. S. Install pull wires in all raceways. Use polypropylene or monofilament plastic line with not less than 200-lb (90-kg)tensile strength. Leave ast12 inches s are above grade alongs00 mm)of ide ck aaceways in uset each end of . wire. Cap underground raceways designatedp T. Surface Raceways: radius control at bend points. 1. Install surface raceway with a minimum 2-inch (50-mm) 2. Secure surface raceway with screws or other anchor-type straight devicesat y intervals not exceedingrt surface 48 inches (1200 mm)and with no less than two supports perlure are not acceptable support methods. according to manufacturer's written instructions.Tape and g U. Install raceway sealing fittings at accessible each'ons fitt ng inoatlush steeto l box with afill blank cover plate having listed sealingcompound. For concealed raceways, install raceway sealing fittings according to NFPA 70 . i a finish similar to that of adjacent plates or surfaces. Install V. Installbetween devices to seal raceway wingrchangesaccessible of environments. Seal the interior of all raceways at the ngs or boxes are between the seal and the following following points: 1. Where conduits pass from warm to cold locations, such as boundaries of refrigerated spaces. 2. Where an underground service raceway enters a building or structure. 3. Conduit extending from interior to exterior of building. 4. Conduit extending into pressurized duct and equipment. 5. Conduit extending into pressurized zones that are automatically controlled to maintain different pres- sure set points. 6. Where otherwise required by NFPA 70. W. Comply with manufacturer's written instructions for solvent welding RNC and fittings. X. Expansion-Joint Fittings: cited where environmental temperature change may 1. Install in each run of aboveground RNC that is to Install in exceedah30 deg F (17 and RMC anand d EMT conduit t has t-run length that that is located where eenvironmental temperature each run of abovegroundand that has straight-run length that exceeds 100 feet change may exceed 100 deg F (55 deg C) 111 (30 m). 2. Install expansion fittings all ns where conduits building or ure expansion joints. 3. Install each expansion-joint fittigwithpostion, mounting, and setting selected according to at specific location at time of installation. Install con- duitmanufacturer's written instructions for conditions p supports to allow for expansion movement. Y. Flexible Conduit Connections: Comply e'th essednA lumRnaV 3es,se a equipmentum of 72 subject to vibration,s n0o se)of flexible conduit for recessed and sem transmission, or movement; and for transformers and motors. 1. Use LFMC in damp or wet locations subject to severe physical damage. 2. Use LFMC or LFNC in damp or wet locations not subject to severe physical damage. Z. Mount boxes at indicated ono ADA'requ rel ens. Install boxes. If s with height measured to center of box ng heights of boxes are not individually indicated, give priority unless otherwise indicated. ins M. Recessed Boxes in Masonry Walls: Saw-cut sourfaces toening rprovide a flat surface fobox in center of cell of re a ra might connetlasoblock, tiontall box flush with surface of wall. Prepare bl between box and cover plate or supported equipment and box. BB. Horizontally separate boxes mounted on opposite sides of walls so they are not in the same vertical channel. I DURHAM EDUCATION CENTER 082217 SECTION 26 05 33 I RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS Page 7 of 8 CC. Locate boxes so that cover or plate will not span different building finishes. IDD. Support boxes of three gangs or more from more than one side by spanning two framing members or mounting on brackets specifically designed for the purpose. EE. Fasten junction and pull boxes to or support from building structure. Do not support boxes by conduits. I FF. Set metal floor boxes level and flush with finished floor surface. GG. Set nonmetallic floor boxes level. Trim after installation to fit flush with finished floor surface. 3.3 INSTALLATION OF UNDERGROUND CONDUIT A. Direct-Buried Conduit: 1. Excavate trench bottom to provide firm and uniform support for conduit. Prepare trench bottom as specified in Section 312000 "Earth Moving"for pipe less than 6 inches (150 mm) in nominal diameter. 2. Install backfill as specified in Section 312000 "Earth Moving." 3. After installing conduit, backfill and compact. Start at tie-in point, and work toward end of conduit run, leaving conduit at end of run free to move with expansion and contraction as temperature changes I during this process. Firmly hand tamp backfill around conduit to provide maximum supporting After placing controlled backfill to within 12 inches (300 mm)of finished grade, make final conduit con- nection at end of run and complete backfilling with normal compaction as specified in Section 312000 "Earth Moving." II4. Install manufactured fiberglass conduit elbows for stub-ups at poles and equipment and at buildingen- trances through floor. e n a. For stub-ups at equipment mounted on outdoor concrete bases and where conduits penetrate i building foundations, extend PVC coated steel conduit horizontally a minimum of 60 inches (1500 mm)from edge of foundation or equipment base. Install insulated grounding bushings on terminations at equipment. 5. Underground Warning Tape: Comply with requirements in Section 260553 "Identification for Electrical Systems." 3.4 INSTALLATION OF UNDERGROUND HANDHOLES AND BOXES A. Install handholes and boxes level and plumb and with orientation and depth coordinated with connecting conduits to minimize bends and deflections required for proper entrances. B. Unless otherwise indicated, support units on a level bed of crushed stone or gravel, graded from 1/2-inch (12.5-mm)sieve to No. 4 (4.75-mm)sieve and compacted to same density as adjacent undisturbed earth. C. Elevation: In paved areas, set so cover surface will be flush with finished grade. Set covers of other enclosures 1 inch (25 mm)above finished grade. D. Install handholes with bottom below frost line. E. Install removable hardware, including pulling eyes, cable stanchions, cable arms, and insulators, as required for installation and support of cables and conductors and as indicated. Select arm lengths to be long enough to provide spare space for future cables but short enough to preserve adequate working clearances in enclosure. F. Field-cut openings for conduits according to enclosure manufacturer's written instructions. Cut wall of enclosure with a tool designed for material to be cut. Size holes for terminating fittings to be used, and seal I around penetrations after fittings are installed. 3.5 SLEEVE AND SLEEVE-SEAL INSTALLATION FOR ELECTRICAL PENETRATIONS A. Install Osleeves and sleeve seals at penetrations of exterior floor and wall assemblies. Comply with I requirements in Section 260544 "Sleeves and Sleeve Seals for Electrical Raceways and Cabling." 3.6 FIRESTOPPING A. Install firestopping at penetrations of fire-rated floor and wall assemblies. Comply with requirements in I Section 078413 "Penetration Firestopping." I I DURHAM EDUCATION CENTER SECTION 26 05 33Page 8 of 8 082217 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 3.7 PROTECTION A. Protect coatings, finishes, and cabinets from derioration. 111 tamage z nge ch paint rcommended by manufacturer. 1. Repair damage to galvanized finishes wi 2. Repair damage to PVC coatings or paint finishes with matching touchup coating recommended by manufacturer. END OF SECTION I I I I I I I I I I I I I I I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 48.16 i SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS Page 1 of 4 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMARY Division 01 Specification Sections, apply to this Section. A. Section Includes: I 1. Restraint channel bracings. 2. Restraint cables. 3. Seismic-restraint accessories. 4. Mechanical anchor bolts. 5. Adhesive anchor bolts. B. Related Requirements: 1. Section 260529 "Hangers and Supports for Electrical Systems"for commonly used electrical supports and installation requirements. 1.3 ACTION SUBMITTALS 1 A. Product Data: For each type of product. 1. Illustrate and indicate style, material, strength, fastening provision, and finish for each type and size of seismic-restraint component used. a. Tabulate types and sizes of seismic restraints, complete with report numbers and rated strength in tension and shear as evaluated by an evaluation service member of ICC-ES. b. Annotate to indicate application of each product submitted and compliance with requirements. B. Delegated-Design Submittal: For each seismic-restraint device. 1. Include design calculations and details for selecting seismic restraints complying witherformance re- quirements, design criteria, and analysis data signed and sealed by the qualified professional engineer p responsible for their preparation. 2. Design Calculations: Calculate static and dynamic loading caused by equipment weight, operation, and seismic and wind forces required to select seismic and wind restraints and for designing vibration isolation bases. a. Coordinate design calculations with wind load calculations required for equipment mounted outdoors. Comply with requirements in other Sections for equipment mounted outdoors. 3. Seismic-and Wind-Restraint Details: a. Design Analysis: To support selection and arrangement of seismic and wind restraints. Include calculations of combined tensile and shear loads. b. Details: Indicate fabrication and arrangement. Detail attachments of restraints to the restrained items and to the structure. Show attachment locations, methods, and spacings. Identify components, list their strengths, and indicate directions and values of forces transmitted to the structure during seismic events. Indicate association with vibration isolation devices. c. Coordinate seismic-restraint and vibration isolation details with wind-restraint details required for equipment mounted outdoors. Comply with requirements in other Sections for equipment mounted outdoors. d. Preapproval and Evaluation Documentation: By an evaluation service member of ICC-ES, showing maximum ratings of restraint items and the basis for approval (tests or calculations). 1.4 INFORMATIONAL SUBMITTALS 1 A. Coordination Drawings: Show coordination of seismic bracing for electrical components with other and equipment in the vicinity, including other supports and seismic restraits Electrical components include: 1. Control and monitoring panels. 2. Luminaires. 3. Panelboards. 4. Photovoltaic system components. 5. Switchboards. 6. Switchgear. 7. Transformers. I DURHAM EDUCATION CENTER P 05 age 2 of48.16 4 082217 SECTION 26 SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS I B. Qualification Data: For testing agency. C. Welding certificates. D. Field quality-control reports. 1.5 QUALITY ASSURANCE with the experience and capability to conduct the A. Testing Agency Qualifications:An independent agency, testing indicated and that is acceptable to authorities having jurisdiction. B. Comply with seismic-restraint requirements in the IBC unless requirements in this Section are more stringent. C. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code-Steel." ear I D. Seismic-restraint devices shall have horizontal dd tion to peealcal ppro�aa, shown g maximum seismic and analysis.They hestbainn anchorage preapproval from OSHPD in a epe, by ICC-ES or another agency acceptable to authorities having jurisdiction. Ratings basedo independent testing are preferred to ratings baseon Calcullationons.s(nc udmg combining shearatins are �and tensavailable, ile submittals based on independent testing are preferred. loads)that support seismic-restraint designs must be signed and sealed by a qualified professional engineer. E. Comply with NFPA 70. 11 PART 2- PRODUCTS 2.1 PERFORMANCE REQUIREMENTS A. Wind-Restraint Loading: 1. Basic Wind Speed: As defined by architect. 2. Building Classification Category: As defined by architect. ro ected on vertical 3. Minimum 10 lb/sq.ft. (48.8 kg/sq. m)multiplied by maximum area of componentp j plane normal to wind direction and 45 degrees either side of normal. B. Seismic-Restraint Loading: ons. I 1. Site Class as Defined in the IBC: See architect speciifi Deifined in the IBC: See architect specifications. 2. Assigned Seismic Use Group or Building Category as a. Component Importance Factor: See architect specifications. b. Component Response Modification Factor: See architect specifications. c. Component Amplification Factor: See architect specifications. 3. Design Spectral Response Acceleration at S 1�°Second Pert ood.2SSee architectarchitect specifications.fcations. 4. Design Spectral Response Acceleration 2.2 RESTRAINT CHANNEL BRACINGS products by one of the following: A. Manufacturers: Subject to compliance with requirements, provide 1. B-line, an Eaton business. 2. Hilti, Inc. 3. Unistrut; Part of Atkore International. ith B. Description: MFMA-4, shop-or field-fabricated anld to building sy made of slotted steel channels to a at the otherVend, with accessories for attachment to braced component at one end other matching components, and with corrosion-resistant coating; rated in tension, compression, and torsion forces. 2.3 RESTRAINT CABLES products by one of the following: A. Manufacturers: Subject to compliance with requirements, p 1. Kinetics Noise Control, Inc. 2. Vibration &Seismic Technologies, LLC. 111 3. Vibration Mountings&Controls, Inc. B. Restraint Cables: ASTM A 603 galvanized-steely restraining cable serviceables. End connectionsmw h a minimum of two ade of steel assemblies with thimbles, brackets, swivel, and bolts designed fo clamping bolts for cable engagement. IDURHAM EDUCATION CENTER 082217 SECTION 26 05 48.16 i SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS Page 3 of 4 2.4 SEISMIC-RESTRAINT ACCESSORIES I A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. B-line, an Eaton business. g 2. Mason Industries, Inc. 3. TOLCO; a brand of NIBCO INC. III B. Hanger-Rod Stiffener: Reinforcing steel angle clamped to hanger rod. C. Hinged and Swivel Brace Attachments: Multifunctional steel connectors for attaching hangers to rigid I channel bracings and restraint cables. D. Bushings for Floor-Mounted Equipment Anchor Bolts: Neoprene bushings designed for rigid equipment mountings and matched to type and size of anchor bolts and studs. IE. Bushing Assemblies for Wall-Mounted Equipment Anchorage:Assemblies of neoprene elements and steel sleeves designed for rigid equipment mountings and matched to type and size of attachment devices used. F. Resilient Isolation Washers and Bushings: One-piece, molded, oil-and water-resistant neoprene, with a flat I washer face. 2.5 MECHANICAL ANCHOR BOLTS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 111 1. B-line, an Eaton business. 2. Hilti, Inc. 3. Mason Industries, Inc. RB. Mechanical Anchor Bolts: Drilled-in and stud-wedge or female-wedge type in zinc-coated steel for interior applications and stainless steel for exterior applications. Select anchor bolts with strength required for anchor and as tested according to ASTM E 488. 2.6 ADHESIVE ANCHOR BOLTS 11 A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Hilti, Inc. 2. Mason Industries, Inc. B. Adhesive Anchor Bolts: Drilled-in and capsule anchor system containing PVC or urethane methacrylate- based resin and accelerator, or injected polymer or hybrid mortar adhesive. Provide anchor bolts and hardware with zinc-coated steel for interior applications and stainless steel for exterior applications. Select anchor bolts with strength required for anchor and as tested according to ASTM E 488. PART 3- EXECUTION I3.1 EXAMINATION A. Examine areas and equipment to receive vibration isolation and seismic-control devices for compliance with requirements for installation tolerances and other conditions affecting performance of the Work. I B. Examine roughing-in for reinforcement and cast-in-place anchors to verify actual locations s before C. Proceed with installation only after unsatisfactory conditions have been corrected. I 3.2 APPLICATIONS A. Multiple Raceways or Cables: Secure raceways and cables to trapeze member with clamps approved for application by an evaluation service member of ICC ES. p B. Hanger-Rod Stiffeners: Install hanger-rod stiffeners as indicated by structural engineer to receive them and where required to prevent buckling of hanger rods caused by seismic forces. C. Strength of Support and Seismic-Restraint Assemblies: Where not indicated, select sizes of components so strength will be adequate to carry present and future static and seismic loads within specified loading limits. 3.3 SEISMIC-RESTRAINT DEVICE INSTALLATION A. Coordinate the location of embedded connection hardware with supported equipment attachment and mounting points and with requirements for concrete reinforcement and formwork specified in Section 033000 "Cast-in-Place Concrete." I DURHAM EDUCATION CENTER SECTION 26 05 48.16Page 4 of 4 082217 SEISMIC CONTROLS FOR ELECTRICAL SYSTEMS I B. Equipment and Hanger Restraints: 1. Install resilient, bolt-isolation washers on equipment anchor bolts where clearance between anchor and adjacent surface exceeds 0.125 inch (3.2 mm). b an evaluation service member of ICC-ES 2. Install seismic-restraint devices using methods approvedY providing required submittals for component. C. Install cables so they do not bend across edges of adjacent equipment b, arranged to provide resilientuildi ng structure. I D. Install bushing assemblies for mounting bolts for media where equipment or equipment-mounting channels are attached to wall. E. Attachment to Structure: Attachment to roof deck prohibited. Coordinate all attachments with multidiscipline supports. F. Drilled-in Anchors: 1. Identify position reinforcing s drilling not damage existing rinfocingorembedded items during coring or drilling. Notify the structural engi- neer if reinforcing steel or other embedded itconduit, and e encountered rgas inganrite's 9 Locate and avoid prestressed tendons, electrical and telecommunications 2. Do not drill holes in concrete or masonry until concrete, mortar, or grout has achieved full design strength. anchor installation. sleeve anchors 3. Wedge Anchors: with threads from engaged ane in te duringtrstructural element to which anchor is to be fastened. shall be installed with sleeve fully 4. Ave. adhesive aCin n holes to removeedinfrom the bottom ofthelhoe and progressing toward the sive. Place adhesive in holes proceeding sur- face in such a manner as to avoid introduction of air pockets in the adhesive. 5. Set anchors to manufacturer's recommended torque using a torque wrench. 6. Install zinc-coated steel anchors for interior and stainless-steel anchors for exterior applications. 3.4 ACCOMMODATION OF DIFFERENTIAL SEISMIC MOTIONewa s cable trays, and busways where they A. Install flexible connections in runs of raceways, cables,wir Y , different structural elements, and cross seismic joints,where adjacent sections or branches are supported by and where connection is terminated to equipment that is anchored to a different structural element from the one supporting them as they approach equipment. 3.5 FIELD QUALITY CONTROL A. Perform the following tests and inspections with the assistance of a factory-authorized service representative: 1. Provide evidence of recent calibration of test equipment by a testing agency acceptable to authorities having jurisdiction. 2. Schedule test with Owner, through Architect, before connecting ndd with at east seven days'radvance no- tice. (unless postconnection testing has been approved), ti 3. Obtain Architect's approval before transmitting test loads to structure. Provide temporary load- spreading members. 4. Test at least four of each type and ioff installed anchors and fasteners selected by Architect. 5. Test to 90 percent of rated proof load B. Seismic controls will be considered defective if they do not pass tests and inspections. C. Prepare test and inspection reports. 3.6 ADJUSTING A. Adjust restraints to permit free movement of equipment within normal mode of operation. END OF SECTION I I i DURHAM EDUCATION CENTER 082217 SECTION 26 05 53 i IDENTIFICATION FOR ELECTRICAL SYSTEMS Page 1 of 4 111 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMDivisionARY 01 Specification Sections, apply to this Section. A. Section Includes: 111 1. Color and legend requirements for raceways, conductors, and warning labels and signs. 2. Labels. 3. Tapes and stencils. 4. Signs. 1.3 ACTION SUBMITTALS A. Product Data: For each type of product. I 1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for electrical identification products. B. Identification Schedule: For each piece of electrical equipment and electrical system components to be an I index of nomenclature for electrical equipment and system components used in identification signs and labels. Use same designations indicated on Drawings. C. Delegated-Design Submittal: For arc-flash hazard study. iPART 2- PRODUCTS 2.1 PERFORMANCE REQUIREMENTS 1 A. Comply with ASME A13.1 and IEEE C2. B. Comply with NFPA 70. C. Comply with 29 CFR 1910.144 and 29 CFR 1910.145. ID. Comply with ANSI Z535.4 for safety signs and labels. E. Comply with NFPA 70E and Section 260573.19 "Arc-Flash Hazard Analysis"requirements for arc-flash warning labels. iF. Adhesive-attached labeling materials, including label stocks, laminating adhesives printers, shall comply with UL 969. and inks used by label G. Thermal Movements:Allow for thermal movements from ambient and surface temperature changes. 1. Temperature Change: 120 deg F(67 deg C), ambient; 180 deg F(100 deg C), material surfaces. 2.2 COLOR AND LEGEND REQUIREMENTS A. Raceways and Cables Carrying Circuits at 600 V or Less: 1. Follow color scheme from district for labels. 2. Legend: Indicate voltage and system or service type. B. Color-Coding for Phase-and Voltage-Level Identification, 600 V or Less: Use colors listed below for I ungrounded feeder and branch-circuit conductors. 1. Color shall be factory applied or field applied for sizes larger than No. 8 AWG if authorities having ju- risdiction permit. I 2. Colors for 208/120-V Circuits: a. Phase A: Black. b. Phase B: Red. c. Phase C: Blue. Id. Neutral: White. 3. Colors for 480/277-V Circuits: a. Phase A: Brown. b. Phase B: Orange. c. Phase C: Yellow. d. Neutral: Gray. I DURHAM EDUCATION CENTER SECTION 2 of 4 082217 IDENTIFICATION FOR ELECTRICAL SYSTEMS I 4. Color for Equipment Grounds: Green. 5. Colors for Isolated Grounds: Green with white stripe. C. Warning Label Colors: 1. Identify system voltage with black letters on an orange background. D. Warning labels and signs shall include,"DANGER but are not limited to,the following legends: - ELECTRICAL SHOCK HAZARD - EQUIPMENT HAS I 1. Multiple Power Source Warning: MULTIPLE POWER SOURCES." 2. Workspace Clearance Warning: "WARNING BEEPT CLEAR FOR 36 REGULATION -AREA IN FROT (915 MM)'oNO ELECTRICAL EQUIPMENT MUSTother complying with NFPA 70 if required. 3. Arc-flash labels per AHJ. 2.3 LABELS A. Self-Adhesive Labels: Extra strength, laminated, adhesive a tape, 1/8 inch he aick location. weather-and UV- 1 resistant, - resistant, pressure-sensitive adhesive labels, configuredintended productse and bya theofollowing: 1. Manufacturers: Subject to compliance with requirements, provide a. Brother International Corporation. b. Dymo. 2. Label junction boxes with panel identification, voltage and circuit number. 3. Label devices and switches with panel and circuit numbers. 2.4 TAPES AND STENCILS A. Underground-Line Warning Tape: 111 1. Tape: a. Recommended by manufacturer unice method utility iof ty lin tallation and suitable to identify and locate underground electrical and co byburial operations. b. Printing on tape shall be permanent and shall not be damaged c. Tape material and ink shall be chemically inert and not subject to commonly found negradation when exposed to acids, alkalis, and other destructive sus. 2. Color and Printing: a. Comply with ANSI Z535.1, ANSI Z535.2, ANSI Z535.3, ANSI Z535.4, and ANSI Z535.5. b. Inscriptions for Red-Colored Orange-Colored lTapes: "TELEPHONE CABLE,OCATVGCABLE, E". c. Inscriptions for COMMUNICATIONS CABLE, OPTICAL FIBER CABLE". 2.5 SIGNS A. Phenolic Plastic or Melamine Plastic Signs: 1. Engraved legend. 2. Thickness: (129 sq, cm), minimum 1/16 inch (1.6 mm)thick. a. For signs up to 20 sq. in. b. For signs larger than 20 sq. in. (129 sq. cm), 1/8 inch (3.2 mm)thick. c. Engraved legend with white letters on a black background. d. 1/4 inch letter height. e. All electrical distribution panels, communication cabinets,transformers, inverters, disconnects, starters,VFDs.. PART 3- EXECUTION 3.1 PREPARATION A. Self-Adhesive Identification Products: Before applying electrical identification products, clean substrates of substances that could impair bond, using materials and methods recommended by manufacturer of identification product. 3.2 INSTALLATION A. Verify and coordinate identification names, abbreviations, colors, and other features with rerequirements uire a is in other Sections requiring identification applications, Drawings, Shop Drawings, 1 diagrams, and operation and maintenance manual. Use consistent designations throughout Project. B. Install identifying devices before installing acoustical ceilings and similar concealment. I DURHAM EDUCATION CENTER 082217 SECTION 26 05 53 IDENTIFICATION FOR ELECTRICAL SYSTEMS Page 3 of 4 C. Verify identity of each item before installing identification products. I D. Coordinate identification with Project Drawings, manufacturer's wiring diagrams, and operation and maintenance manual. E. Apply identification devices to surfaces that require finish after completing finish work. I F. Install signs with approved legend to facilitate proper identification, operation, and maintenance systems and connected items. of electrical G. System Identification for Raceways and Cables under 600 V: Identification shall completely encircle cable I or conduit. Place identification of two-color markings in contact, side by side. 1. Secure tight to surface of conductor, cable, or raceway. H. Auxiliary Electrical Systems Conductor Identification: Identify field-installed alarm, control, and signal I connections. I. Elevated Components: Increase sizes of labels, signs, and letters to those appropriate for viewing from the floor. IJ. Self-Adhesive Labels: 1. On each item, install unique designation label that is consistent with wiring diagrams, schedules, and operation and maintenance manual. 2. Unless otherwise indicated, provide a single line of text with 3/16-inch- (13-mm-)high letters on 1-1/2- inch- (38-mm-) high label; where two lines of text are required, use labels 2 inches (50 mm) high. K. Self-Adhesive Vinyl Tape: Secure tight to surface at a location with high visibility and accessibility. 1. Field-Applied, Color-Coding Conductor Tape:Apply in half-lapped turns for a minimum distance of 6 inches (150 mm)where splices or taps are made. Apply last two turns of tape with no tension to pre- vent possible unwinding. L. Tape and Stencil: Comply with requirements in painting Sections for surface preparation and paint li application. M. Floor Marking Tape:Apply stripes to finished surfaces following manufacturer's written instructions. N. Underground Line Warning Tape: 1. During backfilling of trenches, install continuous underground-line warning tape directly above cable or raceway at 6 to 8 inches (150 to 200 mm) below finished grade. Use multiple tapes where width of multiple lines installed in a common trench or concrete envelope exceeds 16 inches (400 mm)overall. I 2. Install underground-line warning tape for direct-buried cables and cables in raceways. O. Phenolic Plastic or Melamine Plastic Signs: 1. Attach signs that are not self-adhesive type with mechanical fasteners appropriate to the location and I substrate. 2. Unless otherwise indicated, provide a single line of text with 1/4-inch- (13-mm-) high letters on 1-1/2- inch- (38-mm-) high sign; where two lines of text are required, use labels 2 inches (50 mm) high. 3.3 IDENTIFICATION SCHEDULE A. Install identification materials and devices at locations for most convenient viewing without interference with operation and maintenance of equipment. Install access doors or panels to provide view of identifying devices. B. Identify conductors, cables, and terminals in enclosures and at junctions, terminals, pull points, and locations of high visibility. Identify by system and circuit designation. 111 C. Accessible Fittings for Raceways and Cables within Buildings: Identify the covers of each junction and pull box of the following systems with self-adhesive labels containing the wiring system legend and system voltage. System legends shall be as follows: 1. "POWER." ID. Power-Circuit Conductor Identification, 600 V or Less: For conductors in vaults, ull and manholes, and handholes, use self-adhesive vinyl tape to identify the phase. p junction boxes, Ii1. Locate identification at changes in direction, at penetrations of walls and floors, at 50-foot(15-m) max- mum intervals in straight runs, and at 25-foot(7.6-m) maximum intervals in congested areas. E. Control-Circuit Conductor Identification: For conductors and cables in pull and junction boxes, manholes, and handholes, use self-adhesive labels with the conductor or cable designation, origin, and destination. I DURHAM EDUCATION CENTER SECTION 26 05 53Page 4 of 4 082217 IDENTIFICATION FOR ELECTRICAL SYSTEMS F. Control-Circuit Conductor Termination Identification: For identification at terminations, provide self-adhesive labels with the conductor designation. G. Locations of Underground Lines: Underground-line warning tape for power, lighting, communication, and control wiring and optical-fiber cable. H. Workspace Indication: Apply floor marking tape to finished surfaces. Show working clearances in the direction of access to live parts.Workspace shall comply with NFPA 70 and 29 CFR 1926.403 unless otherwise indicated. Do not install at flush-mounted panelboards and similar equipment in and ungrounded finished spaces. I. Instructional Signs: Self-adhesive labels, including the color code groundedr conductors. J. Warning Labels for Indoor Cabinets, Boxes, and Eclosures for Power and Lighting: Self-adhesive labels. 1. Apply to exterior of door, cover, or otheraccess. K. Arc Flash Warning Labeling: Self-adhesive labels. L. Operating Instruction Signs: Self-adhesive labels. M. Equipment Identification Labels: 1. Indoor Equipment: Self-adhesive label and phenolic plastic or melamine plastic sign. 2. Outdoor Equipment: Phenolic plastic or melamine plastic sign. 3. Equipment to Be Labeled: a. Pan e:Typewritten tl identification directory of Ircuits in the location shall be in the form ofra phenolic ppla tic or melamine manufacturer. Panelboard sign. b. Enclosures and electrical cabinets. c. Access doors and panels for concealed electrical items. d. Switchgear. e. Switchboards. f. Transformers: Label that includes tag designation b indicated theiaced on Drawings for the transformer, feeder, and panelboards or equipment suppliedY nd g. Enclosed switches. h. Enclosed circuit breakers. I, Enclosed controllers. 111 j. Variable-speed controllers. k. Push-button stations. I. Contactors. 111 m. Remote-controlled switches, dimmer modules, and control devices. n. Battery-inverter units. o. Battery racks. p. Power-generating units. q. Monitoring and control equipment. r. PV equipment. END OF SECTION I I I I DURHAM EDUCATION CENTER ii 082217 SECTION 26 05 73.13 11/ SHORT CIRCUIT STUDIES Page 1 of 4 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 111 1.2 SUMMARYDivision 01 Specification Sections, apply to this Section. A. Section includes a computer-based, fault-current study to determine the minimum interrupting capacity of circuit protective devices. 1.3 DEFINITIONS A. One-Line Diagram:A diagram which shows, by means of single lines and graphic symbols, the course of an electric circuit or system of circuits and the component devices or parts used therein. B. Protective Device:A device that senses when an abnormal current flow exists and then removes the affected portion from the system. IC. SCCR: Short-circuit current rating. D. Service: The conductors and equipment for delivering electric energy from the serving utility to the wiringserved. g system of the premises 1.4 ACTION SUBMITTALS A. Product Data: For computer software program to be used for studies. I B. Other Action Submittals: Submit the following after the approval of system protective devices submittals. Submittals shall be in digital form. 1. Short-circuit study input data, including completed computer program input data sheets. 2. Short-circuit study and equipment evaluation report; signed, dated, and sealed by a qualified profes- I/ sional engineer. a. Submit study report for action prior to receiving final approval of the distribution equipment submittals. If formal completion of studies will cause delay in equipment manufacturing, obtain I approval from Architect for preliminary submittal of sufficient study data to ensure that the selection of devices and associated characteristics is satisfactory. b. Revised single-line diagram, reflecting field investigation results and results of short-circuit study. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Short-Circuit Study Specialist. B. Product Certificates: For short-circuit study software, certifying compliance with IEEE 399. 111 1.6 QUALITY ASSURANCE A. Studies shall use computer programs that are distributed nationally and are in wide use. Software algorithms shall comply with requirements of standards and guides specified in this Section. Manual I calculations are unacceptable. B. Short-Circuit Study Software Developer Qualifications:An entity that owns and markets computer software used for studies, having performed successful studies of similar magnitude on electrical distribution I systems using similar devices. 1. The computer program shall be developed under the charge of a licensed professional engineer who holds IEEE Computer Society's Certified Software Development Professional certification. C. Short-Circuit Study Specialist Qualifications: Professional engineer in charge of performing the study and documenting recommendations, licensed in the state where Project is located. All elements of the study shall be performed under the direct supervision and control of this professional engineer. D. Field Adjusting Agency Qualifications:An independent agency, with the experience and capability to adjust overcurrent devices and to conduct the testing indicated, that is a member company of the InterNational Electrical Testing Association or is a nationally recognized testing laboratory(NRTL)as defined by OSHA in 29 CFR 1910.7, and that is acceptable to authorities having jurisdiction. I I DURHAM EDUCATION CENTER SECTION 2605 73.13Page 2 of 4 082217 SHORT CIRCUIT STUDIES I PART 2- PRODUCTS 2.1 COMPUTER SOFTWARE A. Manufacturers: Subject to compliance with requirements, provide products by the following: 1. SKM Systems Analysis, B. Comply with IEEE 399 and IEEE 551. C. Analytical features of fault-current-study computer software o as fisted in IEEE program shall h39ave the capability to calculate "mandatory," "very desirable," and "desirable" I D. Computer software program shall be capable of plotting and diagramming time-current-characteristic curves as part of its output. 2.2 SHORT-CIRCUIT STUDY REPORT CONTENTSI A. Executive summary. B. Study descriptions, purpose, basis, and scope. Include case descriptions, definition of terms, and guide for interpretation of the computer printout. I C. One-line diagram, showing the following: 1. Protective device designations and ampere ratings. 2. Cable size and lengths. 3. Transformer kilovolt ampere(kVA) and voltage ratings. 4. Motor and generator designations and kVA ratings. 5. Switchgear, switchboard, motor-controlcenter, elboard where needed.designations. D. Comments and recommendations for system improvements, E. Protective Device Evaluation: s. 1. Evaluate equipment ocircuit breaker,fuse, and other protective device ratingsversuscalculated short-circuit 2. Tabulations of than duties. 3. For 600-V overcurrent protective devices, ensure that interrupting ratings are equal to or higher er calculated 1/2-cycle symmetrical fault current. multiplication factors listed in 4. For devices and equipment rated for asymmetrical fault current, apply P the standards to 1/2-cycle symmetrical fault current. ground-fault 5. Verify adequacy of phase conductors and maximum three-phase electrode condbolted uctors at maximum verify adequacy ofequipment thatgrouhog conductorsgrounding cur- rents. Ensure that short-circuit withstand ratings are equal to or higher than calculated 1/2-cycle sym- metrical fault current. F. Short-Circuit Study Input Data:As described in "Power System Data"Article in the Evaluations. G. Short-Circuit Study Output: 1. Low-Voltage Fault Report: Three-phase and unbalanced fault calculations, showing the following for each overcurrent device location: a. Voltage. b. Calculated fault-current magnitude and angle. c. Fault-point X/R ratio. d. Equivalent impedance. 2. Momentary Duty Report:Three-phase and unbalanced fault calculations, showing the following for 111 each overcurrent device location: a. Voltage. b. Calculated symmetrical fault-current magnitude and angle. c. Fault-point X/R ratio. d. Calculated asymmetrical fault currents: 1) Based on fault-point X/R ratio. 2) Based on calculated symmetrical value multiplied by 1.6. 3) Based on calculated symmetrical value multiplied by 2.7. 3. Interrupting Duty Report: Three-phase and unbalanced fault calculations, showing the following for I each overcurrent device location: a. Voltage. b. Calculated symmetrical fault-current magnitude and angle. II DURHAM EDUCATION CENTER 082217 SECTION 26 05 73.13 i SHORT CIRCUIT STUDIES Page 3 of 4 c. Fault-point X/R ratio. I d. No AC Decrement(NACD) ratio. e. Equivalent impedance. f. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a symmetrical basis. g. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a total basis. PART 3- EXECUTION 3.1 EXAMINATION IA. Obtain all data necessary for the conduct of the study. 1. Verify completeness of data supplied on the one-line diagram. Call any discrepancies to the attention of Architect. R2. For equipment provided that is Work of this Project, use characteristics submitted under the provisions of action submittals and information submittals for this Project. B. Gather and tabulate the following input data to support the short-circuit study. Comply with I recommendations in IEEE 551 as to the amount of detail that is required to be acquired in the field. Field data gathering shall be under the direct supervision and control of the engineer in charge of performing the study, and shall be by the engineer or its representative who holds NETA ETT Level III certification or NICET Electrical Power Testing Level III certification. 1. Product Data for Project's overcurrent protective devices involved in overcurrent protective device co- ordination studies. Use equipment designation tags that are consistent with electrical distribution sys- tem diagrams, overcurrent protective device submittals, input and output data, and recommended de- II vice settings. 2. Obtain electrical power utility impedance at the service. 3. Power sources and ties. 4. For transformers, include kVA, primary and secondary voltages, connection type, impedance, X/R ra- tio, taps measured in percent, and phase shift. 5. For reactors, provide manufacturer and model designation, voltage rating, and impedance. 6. For circuit breakers and fuses, provide manufacturer and model designation. List type of breaker, type I of trip, SCCR, current rating, and breaker settings. 7. Generator short-circuit current contribution data, including short-circuit reactance, rated kVA, rated voltage, and X/R ratio. 8. Busway manufacturer and model designation, current rating, impedance, lengths, and conductor ma- terial. 9. Motor horsepower and NEMA MG 1 code letter designation. 10. Cable sizes, lengths, number, conductor material and conduit material (magnetic or nonmagnetic). I 3.2 SHORT-CIRCUIT STUDY A. Perform study following the general study procedures contained in IEEE 399. B. Calculate short-circuit currents according to IEEE 551. 111 C. Base study on the device characteristics supplied by device manufacturer. D. The extent of the electrical power system to be studied is indicated on Drawings. E. Study electrical distribution system from normal and alternate power sources throughout electrical distribution system for Project. Study all cases of system-switching configurations and alternate operations that could result in maximum fault conditions. F. The calculations shall include the ac fault-current decay from induction motors, synchronous motors, and asynchronous generators and shall apply to low-and medium-voltage, three-phase ac systems. The calculations shall also account for the fault-current dc decrement, to address the asymmetrical requirements of the interrupting equipment. 1. For grounded systems, provide a bolted line-to-ground fault-current study for areas as defined for the three-phase bolted fault short-circuit study. G. Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault at each of the 111 following: 1. Electric utility's supply termination point. 2. Incoming switchgear. I 26 DURHAM EDUCATION CENTER P 05 age 4 of73.13 4 082217 SECTION SHORT CIRCUIT STUDIES 3. Unit substation primary and secondary terminals. 4. Low-voltage switchgear. 5. Control panels. 6. Branch circuit panelboards. 7. Disconnect switches. 111 H. Make minor modifications to equipment as required to accomplish compliance with shod-circuit study. 3.3 DEMONSTRATION A. Train Owner's operating and maintenance personnel in the use of study results. END OF SECTION I 1 I I I I I I 1 I I I I I DURHAM EDUCATION CENTER 082217 SECTION 26 05 73.16 COORDINATION STUDIES Page 1 of 6 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMARY Division 01 Specification Sections, apply to this Section. A. Section includes computer-based, overcurrent protective device coordination studies to determine 1.3 DEFINITIONS settings for selective tripping.protective devices and to determine overcurrent protective devicein g. A. One-Line Diagram:A diagram which shows, by means of single lines and graphic symbols, the course of an electric circuit or system of circuits and the component devices or parts used therein. B. Protective Device:A device that senses when an abnormal current flow exists and then removes the affected portion from the system. IC. SCCR: Short-circuit current rating. D. Service: The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served. 1.4 ACTION SUBMITTALS A. Product Data: For computer software program to be used for studies. I B. Other Action Submittals: Submit the following after the approval of system protective devices submittals. Submittals shall be in digital form. 1. Coordination-study input data, including completed computer program input data sheets. 2. Study and equipment evaluation reports. 3. Overcurrent protective device coordination study report; signed, dated, and sealed by a qualified professional engineer. a. Submit study report for action prior to receiving final approval of the distribution equipment 111 submittals. If formal completion of studies will cause delay in equipment manufacturing, obtain approval from Architect for preliminary submittal of sufficient study data to ensure that the selection of devices and associated characteristics is satisfactory. I 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Coordination Study Specialist. B. Product Certificates: For overcurrent protective device coordination study software, certifying compliance I with IEEE 399. 1.6 CLOSEOUT SUBMITTALS A. Operation and Maintenance Data: For the overcurrent protective devices to include in emergency, I operation, and maintenance manuals. 1. In addition to items specified in Section 017823 "Operation and Maintenance Data,"include the following: a. The following parts from the Protective Device Coordination Study Report: 1) One-line diagram. 2) Protective device coordination study. 3) Time-current coordination curves. I b. Power system data. 1.7 QUALITY ASSURANCE A. Studies shall use computer programs that are distributed nationally and are in wide use. Software i algorithms shall comply with requirements of standards and guides specified in this Section. Manual calculations are unacceptable. B. Coordination Study Software Developer Qualifications:An entity that owns and markets computer software 11 used for studies, having performed successful studies of similar magnitude on electrical distribution systems using similar devices. 1 DURHAM EDUCATION CENTER SECTION 26 05 73.16Page 2 of 6 082217 COORDINATION STUDIES I 1. The computer program shall be developed under the charge of a opt Professional feelicensed siocation nal engineer who holds IEEE Computer Society's Certified Software onDaeveto engineer in charge of performing the study and rtfi C. Coordination Study Specialist Qualifications: Pro documenting recommendations, licensed in the whrP o sct is prsflocated. ell elements of the study shall be performed under the direct supervision andcontrol to D. Field Adjusting Agency Qualifications: An independent agency, with the experience and d,that is a member companY of haa capabilitylit oadlust Electrical es ansod to ion or conthe duct nationally recognized ed testing laboratory(NRTL)as defined by OSHA Electrical Testing AssociationI in 29 CFR 1910.7, and that is acceptable to authorities having jurisdiction. PART 2- PRODUCTS 2.1 COMPUTER SOFTWARE DEVELOPERS rovide products by the following: A. Manufacturers: Subject to compliance with requirements, p 1. SKM Systems Analysis, Inc. B. Comply with IEEE 242 and IEEE 399. C. Analytical features of device coordination study 'decomput r software aspogram ed in sshall have IEEE 399 the capability to calculate"mandatory, very desirable," and D. Computer software program shall be capable of plotting and diagramming time-current-characteristic curves asparr its output. Computerll rrdinat on bydevice tcompu er-ge erat dings and ratings of iltime- overcurrerent protective devices and shall demonstrate selective coo current coordination plots. 1. Optional Features: a. Arcing faults. b. Simultaneous faults. c. Explicit negative sequence. d. Mutual coupling in zero sequence. 2.2 PROTECTIVE DEVICE COORDINATION STUDY REPORT CONTENTSII A. Executive summary. B. Study descriptions, purpose, basis and scope. Include case descriptions, definition of terms and guide for interpretation of the computer printout. C. One-line diagram, showing the following: ratings. 1. Protective device designations and ampere 9 . 2. Cable size and lengths. 3. Transformer kilovolt ampere (kVA)and voltage ratings. 4. Motor and generator designations and kVA ratings. 5. Switchgear, switchboard, motor-control center, and panelboard designations. Y P D. Stud In ut Data: As described in "Power System Data"Article. in "Short-Circuit Study i E. Short-Circuit Study Output: As specified in "Short-Circuit Study Output" Paragraph Report Contents"Article in Section 260573.13"Short-Circuit Studies." F. Protective Device Coordination Study: 1. Report recommended settings of protective devices, ready to be applied in the field. Use manufacturer's data sheets for recording the recommended setting of overcurrent protective devices when available. III Phase and Ground Relays: 1) Device tag. time dial, and instantaneous pickup value. 2) Relay current transformer ratio and tap, 3) Recommendations on improved relaying systems, if applicable. b. Circuit Breakers: 1) Adjustable pickups and time delays (long time, short time, ground). 2) Adjustable time-current characteristic. 3) Adjustable instantaneous pickup. licable. 4) Recommendations on improved trip systems, if app I IDURHAM EDUCATION CENTER 082217 SECTION 26 05 73.16 rCOORDINATION STUDIES Page 3 of 6 c. Fuses: Show current rating, voltage, and class. IG. Time-Current Coordination Curves: Determine settings of overcurrent protective devices to achieve selective coordination. Graphically illustrate that adequate time separation exists between devices installed in series, including power utility company's upstream devices. Prepare separate sets of curves for the switching schemes and for emergency periods where the power source is local generation. Show the 11 following information: 1. Device tag and title, one-line diagram with legend identifying the portion of the system covered. 2. Terminate device characteristic curves at a point reflecting maximum symmetrical or asymmetrical Ifault current to which the device is exposed. 3. Identify the device associated with each curve by manufacturer type, function, and, if applicable, tap, time delay, and instantaneous settings recommended. 4. Plot the following listed characteristic curves, as applicable: a. Power utility's overcurrent protective device. b. Medium-voltage equipment overcurrent relays. c. Medium-and low-voltage fuses including manufacturer's minimum melt, total clearing, tolerance, I and damage bands. d. Low-voltage equipment circuit-breaker trip devices, including manufacturer's tolerance bands. e. Transformer full-load current, magnetizing inrush current, and ANSI through-fault protection curves. f. Cables and conductors damage curves. g. Ground-fault protective devices. h. Motor-starting characteristics and motor damage points. I i. Generator short-circuit decrement curve and generator damage point. j. The largest feeder circuit breaker in each motor-control center and panelboard. 5. Series rating on equipment allows the application of two series interrupting devices for a condition where the available fault current is greater than the interrupting rating of the downstream equipment. Both devices share in the interruption of the fault and selectivity is sacrificed at high fault levels. Maintain selectivity for tripping currents caused by overloads. 6. Provide adequate time margins between device characteristics such that selective operation is I achieved. 7. Comments and recommendations for system improvements. PART 3- EXECUTION 3.1 EXAMINATION A. Examine Project overcurrent protective device submittals for compliance with electrical distribution system I coordination requirements and other conditions affecting performance. Devices to be coordinated are indicated on Drawings. 1. Proceed with coordination study only after relevant equipment submittals have been assembled. Overcurrent protective devices that have not been submitted and approved prior to coordination study I may not be used in study. 3.2 PROTECTIVE DEVICE COORDINATION STUDY A. Comply with IEEE 242 for calculating short-circuit currents and determining coordination time intervals. I B. Comply with IEEE 399 for general study procedures. C. The study shall be based on the device characteristics supplied by device manufacturer. ID. The extent of the electrical power system to be studied is indicated on Drawings. E. Study electrical distribution system from normal and alternate power sources throughout electrical distribution system for Project. Study all cases of system-switching configurations and alternate operations that could result in maximum fault conditions. F. Transformer Primary Overcurrent Protective Devices: 1. Device shall not operate in response to the following: a. Inrush current when first energized. b. Self-cooled, full-load current or forced-air-cooled, full-load current, whichever is specified for that transformer. I DURHAM EDUCATION CENTER SECTION 26 05 73.16 082217 Page 4 .16 COORDINATION STUDIES c. Permissible transformer overloads according to IEEE C57.96 if required by unusual loading or emergency conditions. 2. Device settings shall protect transformers according to IEEE C57.12.00,for fault currents. G. Motor Protection: 1. Select protection for low-voltage motors according to IEEE 242 and NFPA 70. 2. Select protection for motors served at voltages more than 600 V according to IEEE 620. 1 H. Conductor Protand Ptrecommendations inotect cables against IEEE from 242 fault Demonstratemthat equipment withstands the ICEA P-45-482,, and protection maximum short-circuit current for a time equivalent to the tripping time of the primary relay protection or total clearing time of the fuse. To determine temperatures that damage insulation, use curves from cable manufacturers or from listed standards indicating conductor size and short-circuit current. I. Generator Protection: Select protection according to manufacturer's written recommendations and to IEEE 242. J. The calculations shall include the ac fault-current decay from induction motors, synchronous ase hrac systems.The and asynchronoustions generators and shall apply to for the fault-current dc decw-and rement, toage,address the asymmetrical I calculations shall also account requirements of the interrupting equipment. 1. For grounded systems, provide a bolted line-to-ground fault-current study for areas as defined for the three-phase bolted fault short-circuit study. K. Calculate short-circuit momentary and interrupting duties for a three-phase bolted fault and single line-to- ground fault at each of the following: 1. Electric utility's supply termination point. 2. Switchgear. 3. Low-voltage switchgear. 4. Branch circuit panelboards. L. Protective Device Evaluation: 111 1. Evaluate equipment and protective devices and compare to short-circuit ratings. 2. Adequacy of switchgear, motor-control centers, and panelboard bus bars to withstand short-circuit stresses. 3.3 LOAD-FLOW AND VOLTAGE-DROP STUDY A. Perform a load-flow and voltage-drop study to determine the steady-state loading profile of the system. Analyze power system performance two times as follows: 1. Determine load-flow and voltage drop based on full-load currents obtained in "Power System Data" Article. III 2. Determine load-flow and voltage drop based on 80 percent of the design capacity of the load buses. 3. Prepare the load-flow and voltage-drop analysis and report to show power system components that are overloaded, or might become overloaded; show bus voltages that are less than as prescribed by NFPA 70. 3.4 MOTOR-STARTING STUDY A. Perform a motor-starting study to analyze the transient effect of the system's voltage profile during motor starting. Calculate significant motor-starting voltage profiles and analyze the effects of the motor starting on the power system stability. B. Prepare the motor-starting study report, noting light flicker for limits proposed by IEEE 141, and the motore ssags so as not to affect the operation of other utilization equipment on the system supplying 3.5 POWER SYSTEM DATA A. Obtain all data necessary for the conduct of the overcurrent protective device study. 1. Verify completeness of data supplied in the one-line diagram on Drawings. Call discrepancies to the attention of Architect. 2. For new equipment, use characteristics submitted under the provisions of action submittals and information submittals for this Project. 3. For existing equipment, whether or not relocated obtain required electrical distribution system data by field investigation and surveys, conducted by qualified technicians and engineers. The qualifications of technicians and engineers shall be qualified as defined by NFPA 70E. I IDURHAM EDUCATION CENTER 082217 SECTION 26 05 73.16 iCOORDINATION STUDIES Page 5 of 6 B. Gather and tabulate the following input data to support coordination study. The list below is a guide. I Comply with recommendations in IEEE 551 for the amount of detail required to be acquired in the field. Field data gathering shall be under the direct supervision and control of the engineer in charge of performing the study, and shall be by the engineer or its representative who holds NETA ETT Level III certification or NICET Electrical Power Testing Level III certification. I 1. Product Data for overcurrent protective devices specified in other Sections and involved in overcurrent protective device coordination studies. Use equipment designation tags that are consistent with electrical distribution system diagrams, overcurrent protective device submittals, input and output data, I and recommended device settings. 2. Electrical power utility impedance at the service. 3. Power sources and ties. 4. Short-circuit current at each system bus, three phase and line-to-ground. I 5. Full-load current of all loads. 6. Voltage level at each bus. 7. For transformers, include kVA, primary and secondary voltages, connection type, impedance, X/R ratio, taps measured in percent, and phase shift. 8. For reactors, provide manufacturer and model designation, voltage rating, and impedance. 9. For circuit breakers and fuses, provide manufacturer and model designation. List type of breaker, type of trip and available range of settings, SCCR, current rating, and breaker settings. 10. Generator short-circuit current contribution data, including short-circuit reactance, rated kVA, rated voltage, and X/R ratio. 11. For relays, provide manufacturer and model designation, current transformer ratios, potential I transformer ratios, and relay settings. 12. Maximum demands from service meters. 13. Busway manufacturer and model designation, current rating, impedance, lengths, and conductor material. 14. Motor horsepower and NEMA MG 1 code letter designation. 15. Low-voltage cable sizes, lengths, number, conductor material, and conduit material (magnetic or nonmagnetic). 16. Medium-voltage cable sizes, lengths, conductor material, and cable construction and metallic shield performance parameters. 17. Data sheets to supplement electrical distribution system diagram, cross-referenced with tag numbers on diagram, showing the following: Ia. Special load considerations, including starting inrush currents and frequent starting and stopping. b. Transformer characteristics, including primary protective device, magnetic inrush current, and overload capability. c. Motor full-load current, locked rotor current, service factor, starting time, type of start, and thermal-damage curve. d. Generator thermal-damage curve. e. Ratings, types, and settings of utility company's overcurrent protective devices. 1 f. Special overcurrent protective device settings or types stipulated by utility company. g. Time-current-characteristic curves of devices indicated to be coordinated. h. Manufacturer, frame size, interrupting rating in amperes rms symmetrical, ampere or current sensor rating, long-time adjustment range, short-time adjustment range, and instantaneous adjustment range for circuit breakers. i. Manufacturer and type, ampere-tap adjustment range, time-delay adjustment range, instantaneous attachment adjustment range, and current transformer ratio for overcurrent relays. I j. Panelboards, switchboards, motor-control center ampacity, and SCCR in amperes rms symmetrical. k. Identify series-rated interrupting devices for a condition where the available fault current is greater than the interrupting rating of the downstream equipment. Obtain device data details to allow verification that series application of these devices complies with NFPA 70 and UL 489 requirements. I 1 DURHAM EDUCATION CENTER SECTION 26 05 73.16Page 6 of 6 082217 COORDINATION STUDIES I 3.6 FIELD ADJUSTING A. Adjust relay and protective device settings according to the recommended settings provided by the coordination study. Field adjustments shall be completed by the engineering service division of the equipment manufacturer under the Startup and Acceptance Testing contract portion. B. Make minor modifications to equipment as required to accomplish compliance with short-circuit and protective device coordination studies. C. Testing and adjusting shall be by a full-time employee of the Field Adjusting Agency, who holds NETA ETT Level III certification or NICET Electrical Power Testing Level III certification. 1. Performeach mechanical inspection electrical ed in ll ETA tCertify compliance with test parameters. Perform NETA tests and inspections for aajusaba overcurrent protective devices. 3.7 DEMONSTRATION A. ntT onnel in the foowing: el in the fundamentals of operating the power system Owner's maintenance in normal and e 1. AEngage the Coordinationme gency 1. Acquaint person modes. 2. Hand-out and explain the objectives of the coordination study, study descriptions, purpose, basis, and scope. Include case descriptions, definition of terms, and guide for interpreting the time-current coordination curves. 3. Adjust, operate, and maintain overcurrent protective device settings. END OF SECTION I I I I I 1 I I i DURHAM EDUCATION CENTER 082217 SECTION 26 05 73.19 ARC-FLASH HAZARD ANALYSIS Page 1 of 4 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes a computer-based, arc-flash study to determine the arc-flash hazard distance and the incident energy to which personnel could be exposed during work on or near electrical equipment. 1.3 DEFINITIONS A. One-Line Diagram:A diagram which shows, by means of single lines and graphic symbols, the course of 111 an electric circuit or system of circuits and the component devices or parts used therein. B. Protective Device:A device that senses when an abnormal current flow exists and then removes the affected portion from the system. C. SCCR: Short-circuit current rating. D. Service: The conductors and equipment for delivering electric energy from the serving utility to the wiring system of the premises served. 1.4 ACTION SUBMITTALS A. Product Data: For computer software program to be used for studies. B. Study Submittals: Submit the following submittals after the approval of system protective devices submittals. Submittals shall be in digital form. 1. Arc-flash study input data, including completed computer program input data sheets. 2. Arc-flash study report; signed, dated, and sealed by a qualified professional engineer. a. Submit study report for action prior to receiving final approval of the distribution equipment submittals. If formal completion of studies will cause delay in equipment manufacturing, obtain approval from Architect for preliminary submittal of sufficient study data to ensure that the selection of devices and associated characteristics is satisfactory. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Arc-Flash Study Specialist. B. Product Certificates: For arc-flash hazard analysis software, certifying compliance with IEEE 1584 and NFPA 70E. 1.6 CLOSEOUT SUBMITTALS A. Operation and Maintenance Data: 1. Maintenance procedures according to requirements in NFPA 70E shall be provided in the equipment manuals. 2. Operation and Maintenance Procedures: In addition to items specified in Section 017823 "Operation and Maintenance Data," provide maintenance procedures for use by Owner's personnel that comply with requirements in NFPA 70E. 1.7 QUALITY ASSURANCE A. Studies shall use computer programs that are distributed nationally and are in wide use. Software algorithms shall comply with requirements of standards and guides specified in this Section. Manual calculations are unacceptable. B. Arc-Flash Study Software Developer Qualifications:An entity that owns and markets computer software used for studies, having performed successful studies of similar magnitude on electrical distribution systems using similar devices. 1. The computer program shall be developed under the charge of a licensed professional engineer who holds IEEE Computer Society's Certified Software Development Professional certification. C. Arc-Flash Study Specialist Qualifications: Professional engineer in charge of performing the study, 111 analyzing the arc flash, and documenting recommendations, licensed in the state where Project is located. All elements of the study shall be performed under the direct supervision and control of this professional engineer. I 19 DURHAM EDUCATION CENTER Page 7 SECTION 26 05 73..o14 082217 ARC-FLASH HAZARD ANALYSIS D. Field Adjusting Agency Qualifications: An independent agency, with the experience and capability to adjust overcurrent devices and to conduct the testing indicated, that is a member company of the InterNational Electrical Testing Association or is a nationally recognized testing laboratory(NRTL)as defined by OSHA in 29 CFR 1910.7, and that is acceptable to authorities having jurisdiction. PART 2- PRODUCTS I 2.1 COMPUTER SOFTWARE DEVELOPERS A. Manufacturers: Subject to compliance with requirements, provide products by the following: 1. SKM Systems Analysis, Inc. B. Comply with IEEE 1584 and NFPA 70E. C. Analytical features of device coordination study computer software program shall have the capability to calculate"mandatory," "very desirable,"and "desirable"features as listed in IEEE 399. 1 2.2 ARC-FLASH STUDY REPORT CONTENT A. Executive summary. B. Study descriptions, purpose, basis and scope. C. One-line diagram, showing the following: 1. Protective device designations and ampere ratings. 2. Cable size and lengths. 3. Transformer kilovolt ampere (kVA)and voltage ratings. 4. Motor and generator designations and kVA ratings. 5. Switchgear, switchboard, motor-control center and panelboard designations. III D. Study Input Data: As described in "Power System Data"Article. E. Protective Device Coordination Study Report Contents:As specified in "Protective Device Coordination I Study Report Contents"Article in Section 260573.16"Coordination Studies." F. Arc-Flash Study Output: 1. Interrupting Duty Report: Three-phase and unbalanced fault calculations, showing the following for each overcurrent device location: a. Voltage. b. Calculated symmetrical fault-current magnitude and angle. c. Fault-point X/R ratio. d. No AC Decrement(NACD) ratio. e. Equivalent impedance. f. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a symmetrical basis. g. Multiplying factors for 2-, 3-, 5-, and 8-cycle circuit breakers rated on a total basis. II G. Incident Energy and Flash Protection Boundary Calculations: 1. Arcing fault magnitude. 2. Protective device clearing time. 3. Duration of arc. 4. Arc-flash boundary. 5. Working distance. 6. Incident energy. 7. Hazard risk category. 8. Recommendations for arc-flash energy reduction. H. Fault study input data, case descriptions, and fault-current calculations including a definition of terms and guide for interpretation of the computer printout. 2.3 ARC-FLASH WARNING LABELS A. Comply with requirements in Section 260553"Identification for Electrical Systems"for self-adhesive equipment labels. Produce a 3.5-by-5-inch (76-by-127-mm)self-adhesive equipment label for each work location included in the analysis. B. The label shall have an orange header with the wording, "WARNING, ARC-FLASH HAZARD," and shall 111 include the following information taken directly from the arc-flash hazard analysis: 1. Location designation. DURHAM EDUCATION CENTER 082217 SECTION 26 05 73.19 ARC-FLASH HAZARD ANALYSIS Page 3 of 4 2. Nominal voltage. 3. Flash protection boundary. 4. Hazard risk category. 5. Incident energy. 6. Working distance. 7. Engineering report number, revision number, and issue date. C. Labels shall be machine printed, with no field-applied markings. PART 3- EXECUTION 3.1 EXAMINATION A. Examine Project overcurrent protective device submittals. Proceed with arc-flash study only after relevant equipment submittals have been assembled. Overcurrent protective devices that have not been submitted and approved prior to arc-flash study may not be used in study. 3.2 ARC-FLASH HAZARD ANALYSIS A. Comply with NFPA 70E and its Annex D for hazard analysis study. B. Preparatory Studies: 1. Protective Device Coordination Study Report Contents:As specified in "Protective Device Coordina- 11 tion Study Report Contents"Article in Section 260573.16 "Coordination Studies." C. Calculate maximum and minimum contributions of fault-current size. 1. The minimum calculation shall assume that the utility contribution is at a minimum and shall assume no motor load. 2. The maximum calculation shall assume a maximum contribution from the utility and shall assume mo- tors to be operating under full-load conditions. D. Calculate the arc-flash protection boundary and incident energy at locations in the electrical distribution system where personnel could perform work on energized parts. E. Include medium-and low-voltage equipment locations, except equipment rated 240-V ac or less fed from transformers less than 125 kVA. F. Safe working distances shall be specified for calculated fault locations based on the calculated arc-flash boundary, considering incident energy of 1.2 cal/sq.cm. 111 G. Incident energy calculations shall consider the accumulation of energy over time when performing arc-flash calculations on buses with multiple sources. Iterative calculations shall take into account the changing current contributions, as the sources are interrupted or decremented with time. Fault contribution from motors and generators shall be decremented as follows: 1. Fault contribution from induction motors should not be considered beyond three to five cycles. 2. Fault contribution from synchronous motors and generators should be decayed to match the actual decrement of each as closely as possible (e.g., contributions from permanent magnet generators will typically decay from 10 per unit to three per unit after 10 cycles). H. Arc-flash computation shall include both line and load side of a circuit breaker as follows: 1. When the circuit breaker is in a separate enclosure. 2. When the line terminals of the circuit breaker are separate from the work location. I. Base arc-flash calculations on actual overcurrent protective device clearing time. Cap maximum clearing time at two seconds based on IEEE 1584, Section B.1.2. 3.3 POWER SYSTEM DATA A. Obtain all data necessary for the conduct of the arc-flash hazard analysis. 1. Verify completeness of data supplied on the one-line diagram on Drawings and under"Preparatory Studies"Paragraph in "Arc-Flash Hazard Analysis"Article. Call discrepancies to the attention of Archi- tect. 2. For new equipment, use characteristics submitted under the provisions of action submittals and infor- mation submittals for this Project. 3. For existing equipment, whether or not relocated, obtain required electrical distribution system data by field investigation and surveys, conducted by qualified technicians and engineers. I DURHAM EDUCATION CENTER SECTION 26 05 73.19 082217 Page 7 .19 ARC-FLASH HAZARD ANALYSIS ort tudy. omply th B. cocal Survey intIEEEther and tabulate the 1584 and NFPA 70E as to thellowing 'nput data to amount of detail that is required to bel acquired in recommendationsF the field. Field data yaand shalbel e the eng neer or its representative whocontrol holds NETAengineer ETT Level I I of performing the study, and shallby certification or NICET Electrical Power Testing Level III certification. 1. Product Data for overcurrent protective devices specified in other Sections and involved in overcurrent protective device coordination studies. Use equipment designation tags that are consistent with elec- trical distribution system diagrams, overcurrent protective device submittals, input and output data, and recommended device settings. 2. Obtain electrical power utility impedance at the service. 3. Power sources and ties. 4. Short-circuit current at each system bus, three phase and line-to-ground. 5. Full-load current of all loads. 6. Voltage level at each bus. 7. For transformers, include kVA, primary and secondary voltages, connection type, impedance, X/R ra- tio, taps measured in per cent, and phase shift. 8. For reactors, provide manufacturer and model designation, voltage rating and impedance. 9. For circuit breakers and fuses, provide manufacturer and model designation. List type of breaker, type of trip and available range of settings, SCCR, current rating, and breaker settings. 10. Generator short-circuit current contribution data, including short-circuit reactance, rated kVA, rated J' voltage, and X/R ratio. 11. For relays, provide manufacturer and model designation, current transformer ratios, potential trans- former ratios, and relay settings. 12. Busway manufacturer and model designation, current rating, impedance, lengths, and conductor ma- terial. 13. Motor horsepower and NEMA MG 1 code letter designation. 14. Low-voltage cable sizes, lengths, number, conductor material and conduit material (magnetic or non- magnetic). 15. Medium-voltage cable sizes, lengths, conductor material, and cable construction and metallic shield performance parameters. 3.4 LABELING Apply A. one arc-flash label for 600-V ac, 480-V ac, and applicable 208-V ac panelboards and disconnects and and for each of the following locations: 1. Motor-control center. 2. Low-voltage switchboard. 3. Switchgear. 4. Medium-voltage switch. 5. Control panel. 3.5 APPLICATION OF WARNING LABELS A. Install the arc-fault warning labels under the direct supervision and control of the Arc-Flash Study Specialist. 3.6 DEMONSTRATION A. Engagethe Arc-FlashStudySpecialist Owner's potential arc-flash , hazards associated with wOkingonenegzed equipment and the significance of the arcflashwaring labels. END OF SECTION I I I DURHAM EDUCATION CENTER 082217 SECTION 26 24 13 SWITCHBOARDS Page 1 of 9 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Service and distribution switchboards rated 600 V and less. 2. Surge protection devices. 3. Disconnecting and overcurrent protective devices. 4. Instrumentation. 5. Control power. 6. Accessory components and features. 7. Identification. B. Related Requirements 1. Section 260573.19 "Arc-Flash Hazard Analysis"for arc-flash analysis and arc-flash label requirements. 1.3 ACTION SUBMITTALS A. Product Data: For each switchboard, overcurrent protective device, surge protection device, ground-fault protector, accessory, and component. 1. Include dimensions and manufacturers'technical data on features, performance, electrical characteristics, ratings, accessories, and finishes. B. Shop Drawings: For each switchboard and related equipment. 1. Include dimensioned plans, elevations, sections, and details, including required clearances and service space around equipment. Show tabulations of installed devices, equipment features, and ratings. 2. Detail enclosure types for types other than NEMA 250, Type 1. 3. Detail bus configuration, current, and voltage ratings. 4. Detail short-circuit current rating of switchboards and overcurrent protective devices. 5. Detail utility company's metering provisions with indication of approval by utility company. 6. Detail features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components. 7. Include time-current coordination curves for each type and rating of overcurrent protective device included in switchboards. Submit on translucent log-log graft paper; include selectable ranges for each type of overcurrent protective device. 8. Include schematic and wiring diagrams for power, signal, and control wiring. C. Delegated Design Submittal: 1. For arc-flash hazard analysis. 2. For arc-flash labels. 1.4 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer. B. Seismic Qualification Data: Certificates, for switchboards, overcurrent protective devices, accessories, and components, from manufacturer. 1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation. 2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the certification is based and their installation requirements. C. Field Quality-Control Reports: 1. Test procedures used. 2. Test results that comply with requirements. I 3 DURHAM EDUCATION CENTER Page 2 SECTION 26 24 11of3 082217 SWITCHBOARDS 3. Results of failed tests and corrective action taken to achieve test results that comply with requirements. 1.5 CLOSEOUT SUBMITTALS 111 A. Operation and Maintenance Data: For switchboards and components to include in emergency, operation, and maintenance manuals. 1. In addition to items specified in Section 017823"Operation and Maintenance Data," include the following: a. Routine maintenance requirements for switchboards and all installed components. b. Manufacturer's written instructions for testing and adjusting overcurrent protective devices. c. Time-current coordination curves for each type and rating of overcurrent protective device included in switchboards. Submit on translucent log-log graft paper; include selectable ranges for each type of overcurrent protective device. 1.6 QUALITY ASSURANCE A. Installer Qualifications: An employer of workers qualified as defined in NEMA PB 2.1 and trained in electrical safety as required by NFPA 70E. B. Testing Agency Qualifications:Accredited by NETA. 111 1. Testing Agency's Field Supervisor: Certified by NETA to supervise on-site testing. 1.7 DELIVERY, STORAGE, AND HANDLING A. Deliver switchboards in sections or lengths that can be moved past obstructions in delivery path. B. Remove loose packing and flammable materials from inside switchboards and install temporary electric heating (250 W per section)to prevent condensation. C. Handle and prepare switchboards for installation according to NECA 400 and NEMA PB 2.1. 1.8 FIELD CONDITIONS A. Installation Pathway: Remove and replace access fencing, doors, lift-out panels, and structures to provide pathway for moving switchboards into place. B. Environmental Limitations: 1. Do not deliver or install switchboards until spaces are enclosed and weathertight,wet work in spaces is complete and dry, work above switchboards is complete, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period. 2. Rate equipment for continuous operation under the following conditions unless otherwise indicated: a. Ambient Temperature: Not exceeding 104 deg F (40 deg C). b. Altitude: Not exceeding 6600 feet(2000 m). C. Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary electric service according to requirements indicated: 1. Notify Architect, General Contractor and Owner no fewer than seven days in advance of proposed interruption of electric service. 2. Indicate method of providing temporary electric service. 3. Do not proceed with interruption of electric service without Architect's and Owner's written permission. 4. Comply with NFPA 70E. 1.9 COORDINATION A. Coordinate layout and installation of switchboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment, raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces. Maintain required workspace clearances and required clearances for equipment access doors and panels. B. Coordinate sizes and locations of concrete bases with actual equipment provided. Cast anchor-bolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified with concrete. 1 I IDURHAM EDUCATION CENTER 082217 SECTION 26 24 13 1 SWITCHBOARDS Page 3 of 9 1.10 WARRANTY IA. Manufacturer's Warranty: Manufacturer agrees to repair or replace switchboard enclosures, buswork, overcurrent protective devices, accessories, and factory installed interconnection wiring that fail in materials or workmanship within specified warranty period. I1. Warranty Period: Three years from date of Substantial Completion. B. Manufacturer's Warranty: Manufacturer's agrees to repair or replace surge protection devices that fail in materials or workmanship within specified warranty period. I1. Warranty Period: Five years from date of Substantial Completion. PART 2- PRODUCTS 2.1 PERFORMANCE REQUIREMENTS 1 A. Seismic Performance: Switchboards shall withstand the effects of earthquake motions according to ASCE/SEI 7. determined 1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled 1components or on calculation. Shake-table testing shall comply with ICC-ES AC156. 2. The term "withstand"means "the unit will remain in place without separation of any parts from the device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event." 111 2.2 SWITCHBOARDS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: I 1. Eaton. 2. General Electric Company. 3. SIEMENS Industry, Inc.; Energy Management Division. i 4. Square D; by Schneider Electric. B. Source Limitations: Obtain switchboards, overcurrent protective devices, components, and accessories from single source from single manufacturer. C. Product Selection for Restricted Space: Drawings indicate maximum dimensions for switchboards including clearances between switchboards and adjacent surfaces and other items. Comply with indicated maximum dimensions. D. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified i testing agency, and marked for intended location and application. E. Comply with NEMA PB 2. IF. Comply with NFPA 70. G. Comply with UL 891. H. Front-Connected, Front-Accessible Switchboards: 1. Main Devices: Fixed, individually mounted. 111 2. Branch Devices: Panel mounted. 3. Sections front and rear aligned. I. Nominal System Voltage: 208Y/120 V. J. Main-Bus Continuous: 600 A(ALTERNATE AT 1200A). K. Seismic Requirements: Fabricate and test switchboards according to IEEE 344 to withstand seismic forces defined in Section 260548.16 "Seismic Controls for Electrical Systems." 1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation. Shake-table testing shall comply with ICC-ES AC156. a. The term "withstand"means "the unit will remain in place without separation of any parts from the I device when subjected to the seismic forces specified and the unit will be fully operational after the seismic event." L. Indoor Enclosures: Steel, NEMA 250, Type 1. I M. Enclosure Finish for Indoor Units: Factory-applied finish in manufacturer's standard gray finish over a rust- inhibiting primer on treated metal surface. I DURHAM EDUCATION CENTER SECTION 26 24 13 I Page 2 13 082217 SWITCHBOARDS I N. Outdoor Enclosures: Type 3R. 1. Finish: Factory-applied finish in manufacturer's standard color; undersurfaces treated with corrosion- resistant undercoating. 2. Enclosure: Flat roof; bolt-on rear covers for each section,with provisions for padlocking. 3. ithrp: Personnelrdwre door at each ov s ons foraisle, padl cki g.At east one door shall be s zed to permit thedth of 30 inches (762 mm); opening outwards; with panic hardware and p , largest single switchboard section to pass through without disassembling doors, hinges, or switchboard section. I 4. ground fault LED luminaires, ceiling duplex drecepta le; emergency; wired to a three-way lbattery1pack luminaire installed ground-fault circuit interrupter( ) on wall of aisle midway between personnel doors. O. Barriers: Between adjacent switchboard sections. 1 P. Insulation and isolation for main bus of main section and main and vertical buses of feeder sections. ice Q. ServiceneEntrance Rating: Swectinhbmeans with overcurrent proteards intended for use as ction,entrance neutral bus with disconnecting link, one to six service disconnecting grounding electrode conductor terminal, and a main bonding jumper. R. Utility Compartment: Barrier provisioned compartment complying utility requirements; hinged sealable door; buses for mounting tiltcompany's current transformers and otential on is transformers andtapsas required by utility company. If n with basic switchboard. Provide service entrance labrate vertical el and required for utility metering, match9 necessary applicable service entrance features. S. Customer Metering e Compartment:and sect on with ffront h nged dtoor a d sectionpw with dfront hing d door,tfor indicated compartm metering, and current transformers for each meter. Current transformer secondary wiring shall e terminated on shorting-type terminal secondarY s and slecondarylwiring to m ede potentialated on terminal blocks. See sectransforers having primary dtion 262713 I fuses with disconnecting mean for more information on customer metering requirements. T. Bus Transition and Incoming Pull Sections: Matched and aligned with basic switchboard. U. Hinged Front Panels: Allow access to circuit breaker, metering, accessory, and blank compartments. V. Pull Box on Top of Switchboard (if required for connections): 1. Adequate ventilation to maintain temperature in pull box within same limits as switchboard. 2. Set back from front to clear circuit-breaker removal mechanism. 3. Removable covers shall form top,front, and sides.Top covers at rear shall be easily removable for drilling and cutting. 4. Bottom shall be insulating,fire-resistive material with separate holes for cable drops into switchboard. 5. Cable supports shall be arranged to facilitate cabling and adequate to support cables indicated, including those for future installation. W. Buses and Connections:Three phase,four wire unless otherwise indicated. 1. Provide phase bus arrangement A, B, C from front to back, top to bottom, and left to right when viewed from the front of the switchboard. 2. Phase-and Neutral-Bus Material: Hard-drawn copper of 98 percent conductivity. 3. Copper feeder circuit breaker line connections. 4. Load Terminals: Ins rigidly braced, runback extensions, same buses,es, equipped with mechanical or compression for outgoing circuiconductos. Provide load terminals for future circuit-breaker positions at full-ampere rating of circuit-breaker position. 5. Ground Bus: 1/4-by-2-inch- (6-by-50-mm-)hard-drawn copper of 98 percent conductivity, equipped with mechanical or compression connectors for feeder and branch-circuit ground conductors. 6. Main-Phase Buses and Equipment-Ground Buses: Uniform capacity for entire length of switchboard's main and distribution sections. Provide for future extensions from both ends. 7. Disconnect Links: a. Isolate neutral bus from incoming neutral conductors. b. Bond neutral bus to equipment-ground bus for switchboards utilized as service equipment or separately derived systems. I 1 DURHAM EDUCATION CENTER 082217 SECTION 26 24 13 1 SWITCHBOARDS Page 5 of 9 8. Neutral sw , w mechanical Bues:or compression100percent of connectorstheampacity for outgoingofphase circuitbuses neutralunless cables.otherBraceise busindicatedextensionsequipped for ith busway feeder neutral bus. 9. Isolation Barrier Access Provisions: Permit checking of bus-bolt tightness. IX. Future Devices: Equip compartments with mounting brackets, supports, bus connections, and appurtenances at full rating of circuit-breaker compartment. Y. Bus-Bar Insulation: Factory-applied, flame-retardant, tape wrapping of individual bus bars or' flame- retardant, spray-applied insulation. Minimum insulation temperature rating of 105 deg C. Z. Provide code required energy reducing maintenance switching with local status indicator per NEC section 240.87. I2.3 SURGE PROTECTION DEVICES A. SPDs: Listed and labeled by an NRTL acceptable to authorities having jurisdiction as complying with UL 1449, Type 2. 1 B. Features and Accessories: 1. Internal thermal protection that disconnects the SPD before damaging internal suppressor components. 2. Indicator light display for protection status. 1 3. Form-C contacts rated at 5 A and 250-V ac, one normally open and one normally closed, for remote monitoring of protection status. Contacts shall reverse on failure of any surge diversion module or on opening of any current-limiting device. Coordinate with building power monitoring and control system. I4. Surge counter. C. Peak Surge Current Rating: The minimum single-pulse surge current withstand rating per phase shall not be less than 200 kA. The peak surge current rating shall be the arithmetic sum of the ratings of the individual MOVs in a given mode. D. Protection modes and UL 1449 VPR for grounded wye circuits with 208Y/120 V, three-phase, four-wire circuits shall not exceed the following: 1. Line to Neutral: 700 V for 208Y/120 V. 2. Line to Ground: 1200 V for 208Y/120 V. 3. Line to Line: 1000 V for 208Y/120 V. E. SCCR: Equal or exceed 65 kA. 1 F. Nominal Rating: 65 kA. 2.4 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES I A. Molded-Case Circuit Breaker(MCCB): Comply with UL 489, with interrupting capacity to meet available fault currents. 1. Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads and instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for circuit- breaker frame sizes 250 A and larger. 2. Adjustable Instantaneous-Trip Circuit Breakers: Magnetic trip element with front-mounted, field- adjustable trip setting. 3. Electronic trip circuit breakers with rms sensing; field-replaceable rating plug or field-replicable electronic trip; and the following field-adjustable settings: a. Instantaneous trip. b. Long-and short-time pickup levels. 1 c. Long and short time adjustments. d. Ground-fault pickup level, time delay, and I squared t response. 4. Current-Limiting Circuit Breakers: Frame sizes 400 A and smaller; let-through ratings less than I NEMA FU 1, RK-5. 5. GFCI Circuit Breakers: Single-and double-pole configurations with Class A ground-fault protection (6- mA trip). 6. Ground-Fault Equipment Protection (GFEP) Circuit Breakers: Class B ground-fault protection (30-mA I trip). 7. MCCB Features and Accessories: a, Standard frame sizes, trip ratings, and number of poles. 1 DURHAM EDUCATION CENTER SECTION 26 24 13 'Page 6 of 9 082217 SWITCHBOARDS I b. Lugs: Mechanical or compression style, suitable for number, size, trip ratings, and conductor material. c. Application Listing: Appropriate for application; Type SWD for switching fluorescent lighting loads; Type HID for feeding fluorescent and high-intensity discharge (HID) lighting circuits. d. Ground-Fault Protection: Integrally mounted relay and trip unit with adjustable pickup and time- delay settings, push-to-test feature, and ground-fault indicator. I e. Zone-Selective Interlocking: Integral with electronic trip unit;for interlocking ground-fault protection function. f. Shunt Trip: 120-V trip coil energized from separate circuit, set to trip at 75 ' percent of rated voltage. g. Undervoltage Trip: Set to operate at 35 to 75 percent of rated voltage without intentional time delay. I h. AuxiliaryayContacts: One SPDT switch with"a'° and "b" contacts; "a" contacts mimic circuit-breaker contacts, "b" contacts operate in reverse of circuit-breaker contacts. B. Insulated-Case Circuit Breaker(ICCB): 80 percent rated, sealed, insulated-case power circuit breaker with interrupting capacity rating to meet available fault current. 1. Fixed circuit-breaker mounting. 2. Two-step, stored-energy closing. 3. Full-function, microprocessor-based trip units with interchangeable rating plug, tripindicators, and the following field-adjustable settings: a. Instantaneous trip. b. Time adjustments for long- and short-time pickup. I c. Ground-fault pickup level, time delay, and I squared t response. 4. Zone-Selective Interlocking: Integral with electronic trip unit;for interlocking ground-fault protection function. 5. Remote trip indication and control. 6. Control Voltage: 120-V ac. C. Where the highest continuous current trip setting for which the actual overcurrent device installed in a circuit breaker is rated or can be adjusted is 1200A or higher. 1. Energy reducing maintenance switching with location status indicator. 2. Documentation showing the location of these breakers, posted in a location accessible to those authorized to design, install, operate or inspect the installation. 2.5 INSTRUMENTATION 1 A. Instrument Transformers: NEMA El 21.1, and the following: 1. Potential Transformers: NEMA El 21.1; 120 V, 60 Hz, single tapped secondary; disconnecting type with integral fuse mountings. Burden and accuracy shall be consistent with connected metering and I relay devices. 2. an Current Tronaary shorting device. e(Burden and accuracy shall1.1; 5 A, 60 Hz, ry; wound bebe consistent with connected metering nand and secondary sho g relay devices. 3. Control-Power Transformers: for Neutral and Ground-Fault Current Sensing: Connect secondary w r ng to 4. Currentground Transformers overcurrent relays, via shorting terminals, to selective tripping of main and tie circuit breaker. Coordinate with feeder circuit-breaker, ground-faultprotection. B. Multifunction Digital-Metering Monitor: Microprocessor-based unit suitable for three-or four-wire systems and with the following features: 1. Switch-selectable digital display of the following values with maximum accuracy tolerances as indicated: a. Phase Currents, Each Phase: Plus or minus 0.5 percent. b. Phase-to-Phase Voltages, Three Phase: Plus or minus 0.5 percent. I c. Phase-to-Neutral Voltages, Three Phase: Plus or minus 0.5 percent. d. Megawatts: Plus or minus 1 percent. e. Megavars: Plus or minus 1 percent. f. Power Factor: Plus or minus 1 percent. g. Frequency: Plus or minus 0.1 percent. I IDURHAM EDUCATION CENTER 082217 SECTION 26 24 13 SWITCHBOARDS Page 7 of 9 h. Accumulated Energy, Megawatt Hours: Plus or minus 1 percent; accumulated values unaffected Iby power outages up to 72 hours. i. Megawatt Demand: Plus or minus 1 percent; demand interval programmable from five to 60 minutes. j. Contact devices to operate remote impulse-totalizing demand meter. 12. Mounting: Display and control unit flush or semiflush mounted in instrument compartment door. 2.6 CONTROL POWER A. Control Circuits: 120-V ac, supplied through secondary disconnecting devices from control-power transformer. 2.7 IDENTIFICATION IA. Service Equipment Label: NRTL labeled for use as service equipment for switchboards with one or more service disconnecting and overcurrent protective devices. PART 3- EXECUTION I3.1 EXAMINATION A. Receive, inspect, handle, and store switchboards according to NECA 400 and NEMA PB 2.1. Imanufacturer's 1. Lift or move panelboards with spreader bars and manufacturer-supplied lifting straps following instructions. 2. Use rollers, slings, or other manufacturer-approved methods if lifting straps are not furnished. 3. Protect from moisture, dust, dirt, and debris during storage and installation. 4. Install temporary heating during storage per manufacturer's instructions. B. Examine switchboards before installation. Reject switchboards that are moisture damaged or physically damaged. C. Examine elements and surfaces to receive switchboards for compliance with installation tolerances and other conditions affecting performance of the Work or that affect the performance of the equipment. D. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION A. Install switchboards and accessories according to NECA 400 and NEMA PB 2.1. B. Equipment Mounting: Install switchboards on concrete base, 4-inch (100-mm) nominal thickness. Comply I with requirements for concrete base specified in Section 033000 "Cast-in-Place Concrete." 1. Install conduits entering underneath the switchboard, entering under the vertical section where the conductors will terminate. Install with couplings flush with the concrete base. Extend 2 inches (50-mm) Iabove concrete base after switchboard is anchored in place. 2. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 18-inch (450-mm)centers around the full perimeter of concrete base. 3. For supported equipment, install epoxy-coated anchor bolts that extend through concrete base and anchor into structural concrete floor. 4. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded. I5. Install anchor bolts to elevations required for proper attachment to switchboards. 6. Anchor switchboard to building structure at the top of the switchboard if required or recommended by the manufacturer. C. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, straps and brackets, and 111 temporary blocking of moving parts from switchboard units and components. D. Comply with mounting and anchoring requirements specified in Section 260548.16 "Seismic Controls for Electrical Systems." IE. Operating Instructions: Frame and mount the printed basic operating instructions for switchboards, including control and key interlocking sequences and emergency procedures. Fabricate frame of finished wood or metal and cover instructions with clear acrylic plastic. Mount on front of switchboards. I F. Install filler plates in unused spaces of panel-mounted sections. G. Install overcurrent protective devices, surge protection devices, and instrumentation. I I DURHAM EDUCATION CENTER Page 2 SECTION 26 24 13 13 082217 of 9 SWITCHBOARDSI 1. Set field-adjustable switches and circuit-breaker trip ranges. H. Comply with NECA 1. t 3.3 CONNECTIONS A. Bond conduits entering underneath the switchboard to the equipment ground bus with a bonding conductor sized per NFPA 70. 1 B. Support and secure conductors within the switchboard according to NFPA 70. C. Extend insulated equipment grounding cable to busway ground connection and support cable at intervals in vertical run. I 3.4 IDENTIFICATION A. Identify field-installed conductors, interconnecting wiring, and components; provide warning signs complying with requirements for identification specified in Section 260553"Identification for Electrical Systems." B. Switchboard Nameplates: Label each switchboard compartment with a nameplate complying with I requirements for identification specified in Section 260553 "Identification for Electrical Systems." p C. Device Nameplates: Label each disconnecting and overcurrent protective device and each meter and control device mounted in compartment doors with a nameplate complying with requirements for identification specified in Section 260553"Identification for Electrical Systems." 3.5 FIELD QUALITY CONTROL A. Testing Agency: Engage a qualified testing agency to perform tests and inspections. B. Manufacturer's Field Service: Engage a factory-authorized service representative to test and inspect I components, assemblies, and equipment installations, including connections. C. Tests and Inspections: 1. Acceptance Testing: feeder, and a. Test insulation resistance for each switchboard bus, component, connecting supply, control circuit. Open control and metering circuits within the switchboard, and remove neutral connection to surge protection and other electronic devices prior to insulation test. Reconnect after test. Also, test continuity of each circuit. 2. Test ground-fault protection of equipment for service equipment per NFPA 70. 3. Perform each visual and mechanical inspection and electrical test stated in NETA Acceptance Testing Specification. Certify compliance with test parameters. 4. Correct malfunctioning units on-site where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest. I 5. Perform the following infrared scan tests and inspections, and prepare reports: a. Initial Infrared Scanning: After Substantial Completion, but not more than 60 days after Final Acceptance, perform an infrared scan of each switchboard. Remove [front] [front and rear] panels so joints and connections are accessible to portable scanner. b. Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of each switchboard 11 months after date of Substantial Completion. c. Instruments and Equipment: 1) Use an infrared scanning device designed to measure temperature or to detect sI significant deviations from normal values. Provide calibration record for device. 6. Test and adjust controls, remote monitoring, and safeties. Replace damaged and malfunctioning controls and equipment. D. Switchboard will be considered defective if it does not pass tests and inspections. E. Prepare test and inspection reports, including a certified report that identifies switchboards included and that describes scanning results. Include notation of deficiencies detected, remedial action taken, and I observations after remedial action. 3.6 ADJUSTING A. Adjust moving parts and operable components to function smoothly, and lubricate as recommended by manufacturer. I DURHAM EDUCATION CEN 082217 TER SECTION 26 24 13 ' SWITCHBOARDS Page 9 of 9 B. Set field-adjustable circuit-breaker trip ranges as indicated and as specified in Section 260573.16 ' "Coordination Studies." 3.7 PROTECTION A. Temporary Heating: Apply temporary heat, to maintain temperature according to manufacturer's written ' instructions, until switchboard is ready to be energized and placed into service. 3.8 DEMONSTRATION A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain switchboards, overcurrent protective devices, instrumentation, and accessories, and to use and reprogram microprocessor-based trip, monitoring, and communication units. END OF SECTION 1 1 I I 1 I I i I DURHAM EDUCATION CENTER 082217 SECTION 26 24 16 IPANELBOARDS Page 1 of 8 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and ' Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: I 1. Distribution panelboards. 2. Lighting and appliance branch-circuit panelboards. 1.3 DEFINITIONS IA. ATS: Acceptance testing specification. B. GFCI: Ground-fault circuit interrupter. C. GFEP: Ground-fault equipment protection. D. HID: High-intensity discharge. E. MCCB: Molded-case circuit breaker. I F. SPD: Surge protective device. G. VPR: Voltage protection rating. 1.4 ACTION SUBMITTALS I A. Product Data: For each type of panelboard. 1. Include materials, switching and overcurrent protective devices, SPDs, accessories, and components indicated. I 2. Include dimensions and manufacturers'technical data on features, performance, electrical characteris- tics, ratings, and finishes. B. Shop Drawings: For each panelboard and related equipment. I 1. Include dimensioned plans, elevations, sections, and details. 2. Show tabulations of installed devices with nameplates, conductor termination sizes, equipment fea- tures, and ratings. Itreatments, 3. Detail enclosure types including mounting and anchorage, environmental protection, knockouts, corner covers and doors, gaskets, hinges, and locks. 4. Detail bus configuration, current, and voltage ratings. 5. Short-circuit current rating of panelboards and overcurrent protective devices. I 6. Include evidence of NRTL listing for SPD as installed in panelboard. 7. Detail features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components. 8. Include wiring diagrams for power, signal, and control wiring. 9. Key interlock scheme drawing and sequence of operations. 10. Include time-current coordination curves for each type and rating of overcurrent protective device in- cluded in panelboards. Submit on translucent log-log graft paper; include selectable ranges for each type of overcurrent protective device. Include an Internet link for electronic access to downloadable PDF of the coordination curves. 1.5 INFORMATIONAL SUBMITTALS 1 A. Qualification Data: For testing agency. B. Panelboard Schedules: For installation in panelboards. Submit final versions after load balancing. 1.6 CLOSEOUT SUBMITTALS I A. Operation and Maintenance Data: For panelboards and components to include in emergency, operation, and maintenance manuals. In addition to items specified in Section 017823 "Operation and Maintenance Data,"include the following: 1. Manufacturer's written instructions for testing and adjusting overcurrent protective devices. 2. Time-current curves, including selectable ranges for each type of overcurrent protective device that al- lows adjustments. DURHAM EDUCATION CENTER SECTION 26 24 16 082217 Page 2 16 PANELBOARDS 1.7 MAINTENANCE MATERIAL SUBMITTALS A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. 1. Keys: Two spares for each type of panelboard cabinet lock. 2. Circuit Breakers Including GFCI and GFEP Types: Two spares for each panelboard. 3. Fuses for Fused Switches: Equal to 10 percent of quantity installed for each size and type, but no few- er than three of each size and type. 1.8 QUALITY ASSURANCE A. Manufacturer Qualifications: ISO 9001 or 9002 certified. 1.9 DELIVERY, STORAGE, AND HANDLING A. Remove loose packing and flammable materials from inside panelboards; install temporary electric heating (250 W per panelboard)to prevent condensation. B. Handle and prepare panelboards for installation according to NECA 407 and NEMA PB 1. 1.10 FIELD CONDITIONS A. Environmental Limitations: 1. Do not deliver or install panelboards until spaces are enclosed and weathertight,wet work in spaces is complete and dry, work above panelboards is complete, and temporary HVAC system is operating and maintaining ambient temperature and humidity conditions at occupancy levels during the remainder of the construction period. 2. Rate equipment for continuous exceeding (minus conditionsplus otherwise a. Ambient Temperature: Not mnus 22 deg F 30 deg C)to 04 deg F (plus 40 deg C). b. Altitude: Not exceeding 6600 feet(2000 m). B. Service Conditions: NEMA PB 1, usual service conditions, as follows: 1. Ambient temperatures within limits specified. 2. Altitude not exceeding 6600 feet(2000 m). C. ner or of Interruption oemitted under the following coning Electric Service: Do not ditions and then onlyrrupt electric lce to afterr arranging to provide tees occupied bymporary others unless perm electric service according to requirements indicated: 1. Notify Architect, General Contractor and Owner no fewer than two days in advance of proposed inter- ruption of electric service. 2. Do not proceed with interruption of electric service without Architect's and Owner's written permission. 3. Comply with NFPA 70E. 1.11 WARRANTY A. Manufacturer's Warranty: Manufacturer agrees to repair or replace panelboards that fail in materials or workmanship within specified warranty period. 1. Panelboard Warranty Period: 18 months from date of Substantial Completion. B. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace SPD that fails in materials or workmanship within specified warranty period. 1. SPD Warranty Period: Five years from date of Substantial Completion. PART 2- PRODUCTS 2.1 PANELBOARDS AND LOAD CENTERS COMMON REQUIREMENTS A. Fabricate and test panelboards according to IEEE 344 to withstand seismic forces defined in Section 260548.16"Seismic Controls for Electrical Systems." B. Product Selection for Restricted Space: Drawings indicate maximum dimensions for panelboards including clearances between panelboards and adjacent surfaces and other items. Comply with indicated maximum dimensions. C. Electrical Components, Devicei and c Accessories:ai n and Listed apand labeled as defined in NFPA 70, by a qualified testing agency, and marked for D. Comply with NEMA PB 1. DURHAM EDUCATION CENTE 082217 R SECTION 26 24 16 PANELBOARDS Page 3 of 8 E. Comply with NFPA 70. F. Enclosures: Flush and Surface-mounted, dead-front cabinets. 1. Rated for environmental conditions at installed location. a. Indoor Dry and Clean Locations: NEMA 250, Type 1. b. Outdoor Locations: NEMA 250, Type 3R. c. Kitchen Areas: NEMA 250, Type 4X, stainless steel. d. Other Wet or Damp Indoor Locations: NEMA 250, Type 4. 2. Height: 84 inches (2.13 m) maximum. 3. Hinged Front Cover: Entire front trim hinged to box and with standard door within hinged trim cover. Trims shall cover all live parts and shall have no exposed hardware. 4. Finishes: a. Panels and Trim: galvanized steel, factory finished immediately after cleaning and pretreating with manufacturer's standard two-coat, baked-on finish consisting of prime coat and thermosetting topcoat. b. Back Boxes: Galvanized steel. G. Incoming Mains: 1. Location: Per drawings for ease of constructability. 2. Main Breaker: Main lug interiors up to 400 amperes shall be field convertible to main breaker. 111 H. Phase, Neutral, and Ground Buses: 1. Material: Hard-drawn copper, 98 percent conductivity. a. Plating shall run entire length of bus. b. Bus shall be fully rated the entire length. 2. Interiors shall be factory assembled into a unit. Replacing switching and protective devices shall not disturb adjacent units or require removing the main bus connectors. 3. Equipment Ground Bus:Adequate for feeder and branch-circuit equipment grounding conductors; bonded to box. 4. Full-Sized Neutral: Equipped with full-capacity bonding strap for service entrance applications. Mount electrically isolated from enclosure. Do not mount neutral bus in gutter. I. Conductor Connectors: Suitable for use with conductor material and sizes. 1. Material: Hard-drawn copper, 98 percent conductivity. 2. Terminations shall allow use of 75 deg C rated conductors without derating. 3. Size: Lugs suitable for indicated conductor sizes, with additional gutter space, if required, for larger conductors. 4. Main and Neutral Lugs: Compression type, with a lug on the neutral bar for each pole in the panel- board. 5. Ground Lugs and Bus-Configured Terminators: Compression type, with a lug on the bar for each pole in the panelboard. 6. Feed-Through Lugs: Compression type, suitable for use with conductor material. Locate at opposite end of bus from incoming lugs or main device. 7. Subfeed (Double) Lugs: Compression type suitable for use with conductor material. Locate at same end of bus as incoming lugs or main device. 8. Gutter-Tap Lugs: Compression type suitable for use with conductor material and with matching insu- lating covers. Locate at same end of bus as incoming lugs or main device. J. NRTL Label: Panelboards or load centers shall be labeled by an NRTL acceptable to authority having jurisdiction for use as service equipment with one or more main service disconnecting and overcurrent protective devices. Panelboards or load centers shall have meter enclosures, wiring, connections, and other provisions for utility metering. Coordinate with utility company for exact requirements. K. Future Devices: Panelboards or load centers shall have mounting brackets, bus connections, filler plates, and necessary appurtenances required for future installation of devices. 1. Percentage of Future Space Capacity: 20 percent. L. Panelboard Short-Circuit Current Rating: Fully rated to interrupt symmetrical short-circuit current available at terminals. Assembly listed by an NRTL for 100 percent interrupting capacity. 1. Panelboards and overcurrent protective devices rated 240 V or less shall have short-circuit ratings as shown on Drawings, but not less than 10,000 A rms symmetrical. I 6 DURHAM EDUCATION CENTER Page 2 SECTION 26 24 11of6 082217 PANELBOARDS 2. Panelboards and overcurrent protective devices rated above 240 V and less than 600 V shall have short-circuit ratings as shown on Drawings, but not less than 14,000 A rms symmetrical. 2.2 PERFORMANCE REQUIREMENTS A. Seismic Performance: Panelboards shall withstand the effects of earthquake motions determined according to ASCE/SEI 7. 1. The term "withstand" means"the unit will remain in place without separation of any parts from the de- vice when subjected to the seismic forces specified." B. Surge Suppression: Factory installed as an integral part of indicated panelboards, complying with UL 1449 SPD Type 2. 2.3 POWER PANELBOARDS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Eaton. 2. General Electric Company; GE Energy Management- Electrical Distribution. 3. SIEMENS Industry, Inc.; Energy Management Division. 4. Square D; by Schneider Electric. B. Panelboards: NEMA PB 1, distribution type. C. Doors: Secured with vault-type latch with tumbler lock; keyed alike. 1. For doors more than 36 inches (914 mm) high, provide two latches, keyed alike. D. Mains: Circuit breaker or Lugs only. E. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes 125 A and Smaller: Bolt-on circuit breakers; Plug-in circuit breakers where individual positive-locking device requires mechanical release for removal. F. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger Than 125 A: Bolt-on circuit breakers; Plug-in circuit breakers where individual positive-locking device requires mechanical release for removal. 2.4 LIGHTING AND APPLIANCE BRANCH-CIRCUIT PANELBOARDS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Eaton. 2. General Electric Company; GE Energy Management- Electrical Distribution. 3. SIEMENS Industry, Inc.; Energy Management Division. 4. Square D; by Schneider Electric. B. Panelboards: NEMA PB 1, lighting and appliance branch-circuit type. C. Mains: Circuit breaker or lugs only. D. Branch Overcurrent Protective Devices: Bolt-on circuit breakers, replaceable without disturbing adjacent units. E. Doors: Door-in-door construction with concealed hinges; secured with multipoint latch with tumbler lock; keyed alike. Outer door shall permit full access to the panel interior. Inner door shall permit access to breaker operating handles and labeling, but current carrying terminals and bus shall remain concealed. 2.5 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Eaton. 2. General Electric Company; GE Energy Management- Electrical Distribution. 3. SIEMENS Industry, Inc.; Energy Management Division. 4. Square D; by Schneider Electric. B. MCCB: Comply with UL 489,with interrupting capacity to meet available fault currents. 1. Thermal-Magnetic Circuit Breakers: a. Inverse time-current element for low-level overloads. b. Instantaneous magnetic trip element for short circuits. c. Adjustable magnetic trip setting for circuit-breaker frame sizes 250 A and larger. 2. Adjustable Instantaneous-Trip Circuit Breakers: Magnetic trip element with front-mounted,field- adjustable trip setting. DURHAM EDUCATION CENTER 082217 SECTION 26 24 16 PANELBOARDS Page 5 of 8 3. Electronic Trip Circuit Breakers: a. RMS sensing. b. Field-replaceable rating plug or electronic trip. c. Digital display of settings, trip targets, and indicated metering displays. d. Multi-button keypad to access programmable functions and monitored data. e. Ten-event, trip-history log. Each trip event shall be recorded with type, phase, and magnitude of fault that caused the trip. f. Integral test jack for connection to portable test set or laptop computer. g. Field-Adjustable Settings: 1) Instantaneous trip. 2) Long-and short-time pickup levels. 3) Long and short time adjustments. 4) Ground-fault pickup level, time delay, and I squared T response. 4. Current-Limiting Circuit Breakers: Frame sizes 400 A and smaller; let-through ratings less than NEMA FU 1, RK-5. 5. GFCI Circuit Breakers: Single-and double-pole configurations with Class A ground-fault protection (6- mA trip). 6. GFEP Circuit Breakers: Class B ground-fault protection (30-mA trip). 7. Arc-Fault Circuit Interrupter Circuit Breakers: Comply with UL 1699; 120/240-V, single-pole configura- tion. 8. Subfeed Circuit Breakers: Vertically mounted. 9. MCCB Features and Accessories: a. Standard frame sizes, trip ratings, and number of poles. b. Breaker handle indicates tripped status. c. UL listed for reverse connection without restrictive line or load ratings. d. Lugs: Compression style, suitable for number, size, trip ratings, and conductor materials. e, Application Listing:Appropriate for application; Type SWD for switching fluorescent lighting loads; Type HID for feeding fluorescent and HID lighting circuits. f. Ground-Fault Protection: Integrally mounted relay and trip unit with adjustable pickup and time- delay settings, push-to-test feature, and ground-fault indicator. g. Shunt Trip: 120-V trip coil energized from separate circuit, set to trip at 75 percent of rated voltage. h. Rating Plugs: Three-pole breakers with ampere ratings greater than 150 amperes shall have interchangeable rating plugs or electronic adjustable trip units. i. Auxiliary Contacts: One, SPDT switch with "a"and "b" contacts; "a"contacts mimic circuit- breaker contacts and "b"contacts operate in reverse of circuit-breaker contacts. j. Alarm Switch: Single-pole, normally open contact that actuates only when circuit breaker trips. k. Key Interlock Kit: Externally mounted to prohibit circuit-breaker operation; key shall be removable only when circuit breaker is in off position. I. Zone-Selective Interlocking: Integral with electronic trip unit; for interlocking ground-fault protection function with other upstream or downstream devices. m. Multipole units enclosed in a [single housing with a single handle] [or] [factory assembled to operate as a single unit]. n. Handle Padlocking Device: Fixed attachment, for locking circuit-breaker handle in on or off position. o. Handle Clamp: Loose attachment, for holding circuit-breaker handle in on position. 2.6 IDENTIFICATION A. Panelboard Label: Manufacturer's name and trademark, voltage, amperage, number of phases, and number of poles shall be located on the interior of the panelboard door. B. Breaker Labels: Faceplate shall list current rating, UL and IEC certification standards, and AIC rating. C. Circuit Directory: Computer-generated circuit directory mounted inside panelboard door with transparent plastic protective cover. 1. Circuit directory shall identify specific purpose with detail sufficient to distinguish it from all other cir- cuits. 1 DURHAM EDUCATION CENTER SECTION 26 24 16 ' 082217 Page 2 o1 8 ' PANELBOARDS PART 3- EXECUTION 3.1 EXAMINATION A. Verify actual conditions with field measurements prior to ordering panelboards to verify that equipment fits in allocated space in, and comply with, minimum required clearances specified in NFPA 70. B. Receive, inspect, handle, and store panelboards according to NECA 407 and NEMA PB 1.1. C. Examine panelboards before installation. Reject panelboards that are damaged, rusted, or have been subjected to water saturation. D. Examine elements and surfaces to receive panelboards for compliance with installation tolerances and other conditions affecting performance of the Work. E. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION A. Coordinate layout and installation of panelboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment, raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces. Maintain required workspace clearances and required clearances for equipment access doors and panels. B. Comply with NECA 1. C. Install panelboards and accessories according to NECA 407 and NEMA PB 1.1. D. Equipment Mounting: 1. Install panelboards on cast-in-place concrete equipment base(s). Comply with requirements for equipment bases and foundations specified in Section 033000 "Cast-in-Place Concrete." 2. Attach panelboard to the vertical finished or structural surface behind the panelboard. 3. Comply with requirements for seismic control devices specified in Section 260548.16"Seismic Con- trols for Electrical Systems." E. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and temporary blocking of moving parts from panelboards. F. Comply with mounting and anchoring requirements specified in Section 260548.16"Seismic Controls for Electrical Systems." G. Mount top of trim 90 inches (2286 mm) (or so that highest breaker, in on position is not higher than 79 inches)above finished floor unless otherwise indicated. H. Mount panelboard cabinet plumb and rigid without distortion of box. I. Mount recessed panelboards with fronts uniformly flush with wall finish and mating with back box. J. Mount surface-mounted panelboards to steel slotted supports 5/8 inch (16 mm)in depth. Orient steel slotted supports vertically. K. Install overcurrent protective devices and controllers not already factory installed. 1. Set field-adjustable, circuit-breaker trip ranges. L. Make grounding connections and bond neutral for services and separately derived systems to ground. Make connections to grounding electrodes, separate grounds for isolated ground bars, and connections to separate ground bars. M. Install filler plates in unused spaces. N. Stub four 1-inch (25 mm)empty conduits from panelboard into accessible ceiling space or space designated to be ceiling space in the future. Stub four 1-inch (25 mm) empty conduits into raised floor space or below slab not on grade. O. Arrange conductors in gutters into groups and bundle and wrap with wire ties after completing load balancing. P. Mount spare fuse cabinet in accessible location. Q. Metering: See section 262713 for more information on customer metering requirements. Meters are to be mounted near panels. Ensure meter locations are noted in submittals. Mount meters to panels where possible. DURHAM EDUCATION CENTER 082217 SECTION 26 24 16 ' PANELBOARDS Page 7 of 8 3.3 IDENTIFICATION A. Identify field-installed conductors, interconnecting wiring, and components; install warning signs complying with requirements in Section 260553 "Identification for Electrical Systems." B. Create a directory to indicate installed circuit loads after balancing panelboard loads; incorporate Owner's final room designations. Obtain approval before installing. Handwritten directories are not acceptable. Install directory inside panelboard door. C. Panelboard Nameplates: Label each panelboard with a nameplate complying with requirements for identification specified in Section 260553 "Identification for Electrical Systems." D. Device Nameplates: Label each branch circuit device in power panelboards with a nameplate complying with requirements for identification specified in Section 260553 "Identification for Electrical Systems." E. Install warning signs complying with requirements in Section 260553 "Identification for Electrical Systems" identifying source of remote circuit. 3.4 FIELD QUALITY CONTROL A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test, and adjust components, assemblies, and equipment installations, including connections. B. Perform tests and inspections. 1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect compo- nents, assemblies, and equipment installations, including connections, and to assist in testing. C. Acceptance Testing Preparation: 1. Test insulation resistance for each panelboard bus, component, connecting supply, feeder, and control circuit. Also, test continuity of each circuit. D. Tests and Inspections: 1. Perform each visual and mechanical inspection and electrical test for low-voltage air circuit break- ers and low-voltage surge arrestors stated in NETA ATS, Paragraph 7.6 Circuit Breakers. Certify com- pliance with test parameters. 2. Correct malfunctioning units on-site, where possible, and retest to demonstrate compliance; otherwise, replace with new units and retest. 3. Perform the following infrared scan tests and inspections and prepare reports: a. Initial Infrared Scanning:After Substantial Completion, but not more than 60 days after Final Acceptance, perform an infrared scan of each panelboard. Remove front panels so joints and connections are accessible to portable scanner. b. Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of each panelboard 11 months after date of Substantial Completion. c. Instruments and Equipment: 1) Use an infrared scanning device designed to measure temperature or to detect significant deviations from normal values. Provide calibration record for device. E. Panelboards will be considered defective if they do not pass tests and inspections. F. Prepare test and inspection reports, including a certified report that identifies panelboards included and that describes scanning results, with comparisons of the two scans. Include notation of deficiencies detected, remedial action taken, and observations after remedial action. 111 3.5 ADJUSTING A. Adjust moving parts and operable components to function smoothly, and lubricate as recommended by manufacturer. B. Set field-adjustable circuit-breaker trip ranges as indicated and as specified in Section 260573.16 "Coordination Studies." C. Load Balancing:After Substantial Completion, but not more than 60 days after Final Acceptance, measure load balancing and make circuit changes. Prior to making circuit changes to achieve load balancing, inform Architect of effect on phase color coding. 1. Measure loads during period of normal facility operations. 2. Perform circuit changes to achieve load balancing outside normal facility operation schedule or at times directed by the Architect. Avoid disrupting services such as fax machines and on-line data pro- cessing, computing, transmitting, and receiving equipment. 1 DURHAM EDUCATION CENTER SECTION 26 24 16 I Page 2 o1 8 082217 PANELBOARDS I 3. After changing circuits to achieve load balancing, recheck loads during normal facility operations. Record load readings before and after changing circuits to achieve load balancing. 4. Tolerance: Maximum difference between phase loads, within a panelboard, shall not exceed 20 per- cent. 3.6 PROTECTION A. Temporary Heating: Prior to energizing panelboards, apply temporary heat to maintain temperature according to manufacturer's written instructions. END OF SECTION I I 1 I I I I I I I I I I I DURHAM EDUCATION CENTER 082217 SECTION 26 27 13 ELECTRICITY METERING Page 1 of 5 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section includes utility electricity metering, electricity submetering and building energy usage monitoring system. 1.3 DEFINITIONS A. KY or KYZ Pulse: Term used by the metering industry to describe a method of measuring consumption of electricity(kWh)that is based on a relay opening and closing in response to the rotation of the disk in the meter. Electronic meters generate pulses electronically. 1.4 ACTION SUBMITTALS A. Product Data: 1. For each type of meter. 2. For metering infrastructure components. 1113. For metering software. B. Shop Drawings: For electricity-metering equipment. 1. Include elevation views of front panels of control and indicating devices and control stations. 2. Include diagrams for power, signal, and control wiring. 3. Wire Termination Diagrams and Schedules: Include diagrams for power, signal, and control wiring. Identify terminals and wiring designations and color-codes to facilitate installation, operation, and maintenance. Indicate recommended types, wire sizes, and circuiting arrangements for field-installed wiring, and show circuit protection features. Differentiate between manufacturer-installed and field- installed wiring. 4. Include series-combination rating data for modular meter centers with main disconnect device. 5. Block Diagram: Show interconnections between components specified in this Section and devices fur- nished with power distribution system components. Indicate data communication paths and identify networks, data buses, data gateways, concentrators, and other devices used. Describe characteristics of network and other data communication lines. 1.5 INFORMATIONAL SUBMITTALS A. Coordination Drawings: Submit evidence that meters are compatible with connected monitoring and control devices. 1. Show interconnecting signal and control wiring, and interface devices to show compatibility of meters. 2. For reporting and billing interfaces and adapters, list network protocols and provide statements from manufacturers that input and output devices comply with interoperability requirements of the protocol. B. Qualification Data: For testing agency. C. Field quality-control reports. D. Sample Warranty: For special warranty. 1.6 CLOSEOUT SUBMITTALS A. Operation and Maintenance Data: In addition to items specified in Section 017823 "Operation and Maintenance Data,"include the following: 1. Application and operating software documentation. 2. Software licenses. 3. Software service agreement. 4. Device address list. 5. Hard copies of manufacturer's operating specifications, user's guides for software and hardware, and PDF files on a USB storage device of hard-copy Submittal. 6. Meter data sheet for each meter, listing nameplate data and serial number, accuracy certification, and test results. 7. Meter installation and billing software startup report. I DURHAM EDUCATION CENTER Page 2 SECTION 26 27 1 13 3 of 082217 ELECTRICITY METERING I 1.7 FIELD CONDITIONS A. Interruption of Existing Electrical Service: Do not interrupt electrical service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary electrical service according to requirements indicated: 1. Architect, General Contractor and Owner shall be notified and issued written permission no fewer than two days in advance of proposed interruption of electrical service. 1.8 QUALITY ASSURANCE A. Testing Agency Qualifications:An NRTL. 1.9 WARRANTY A. Special Warranty: Manufacturer agrees to repair or replace components of metering equipment that fail in materials or workmanship within specified warranty period. 1. Failures include, but are not limited to,the following: a. Damage from transient voltage surges. 2. Warranty Period: Cost to repair or replace any parts for two years from date of Substantial Completion. o 3. Extended Warranty Period: Cost of replacement parts (materials only,f.o.b. the nearest shipping point to Project site), for eight years, that failed in service due to transient voltage surges. 1.10 COORDINATION A. Electrical Service Connections: 1. Coordinate with utility companies and utility-furnished components. a. Comply with requirements of utility providing electrical power services. b. Coordinate installation and connection of utilities and services, including provision for electricity- metering components. B. End use categories: 1. Lighting 2. Plug loads 3. All other loads 4. PV generation PART 2- PRODUCTS 2.1 SYSTEM DESCRIPTION111 A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. B. Comply with UL 916. 2.2 UTILITY METERING INFRASTRUCTURE A. Install metering accessories furnished by the utility company, complying with its requirements. B. Utility-Furnished Meters: Connect data transmission facility of metering equipment installed by the Utility. 1. Data Transmission:Transmit pulse data over control-circuit conductors, classified as Class 1 per NFPA 70, Article 725. Comply with Section 260523 "Control-Voltage Electrical Power Cables." C. Current-Transformer Cabinets: Comply with requirements of electrical-power utility company. D. Meter Sockets: 1. Comply with requirements of electrical-power utility company. 2. Meter Sockets: Steady-state and short-circuit current ratings shall meet indicated circuit ratings. in service rminal x with lugs nly, 111 E. Modular Mmet r socket m d es, a d feeder circuit breake sCenter: Factory-coordinated assembly of a aarranged ineadjacent overtical sections wirewa , complete with interconnecting buses. F. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Eaton. 2. General Electric Company. 3. SIEMENS Industry, Inc.; Energy Management Division. 4. Square D; by Schneider Electric. I 111 DURHAM EDUCATION CENTER 082217 SECTION 26 27 13 ELECTRICITY METERING Page 3 of 5 G. Comply with requirements of utility company for meter center. 1 1. Comply with UL 67. 2. Housing: NEMA 250, Type 1 or Type 3R enclosure. 3. Meter Socket Rating: Coordinated with connected feeder circuit rating. 4. Minimum Short-Circuit Rating: 65,000 A symmetrical at rated voltage. 1 5. Steady-state and short-circuit current ratings shall have ratings that match connected circuit ratings. 6. Main Disconnect Device: Circuit breaker, fully rated for use with downstream feeder and branch circuit breakers and having an adjustable magnetic trip setting for circuit-breaker frame sizes of 250 A and I larger. Comply with requirements in Section 262816 "Enclosed Switches and Circuit Breakers." Circuit breakers shall be operable from outside the enclosure to disconnect the unit. Configure cover so it can be opened only when the disconnect switch is open. 7. Feeder Circuit Breakers: Fully-rated molded-case units, rated to protect downstream circuit breakers I and to house load centers and panelboards that have 22,000-A interrupting capacity. a. Identification: Complying with requirements in Section 260553 "Identification for Electrical Systems." I b. Physical Protection: Tamper resistant, with hasp for padlock. 8. Surge Protection at Main Disconnect: Factory-mounted external to the device, UL 1449 Type 2, with integral disconnect and overcurrent protective device. H. Arc-Flash Warning Labels; 1. Labels: Comply with requirements for"Arc-Flash Warning Labels" in Section 260573.19 "Arc-Flash Studies."Apply a 3-1/2-by-5-inch (76-by-127-mm)thermal transfer label of high-adhesion polyester for each work location included in the analysis. I2.3 ELECTRICITY SUBMETERS A. System Description:Able to meter designated activity loads, with or without external alarm, control, and communication capabilities, or other optional features. Metering shall be broken up by end use categories II as listed previously. B. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. eGauge or approved equal. I C. Comply with ANSI C12.1 and ANSI C12.20, 0.2 accuracy class. 1. Ambient Temperature: Minus 22 deg F to plus 158 deg F (Minus 30 deg C to plus 70 deg C). 2. Humidity:Zero to 95 percent, noncondensing. I 3. Capacities and Characteristics: a. Circuit: 120/240-V ac, 100 A. b. Measure: kWh, onboard LED display. c. Remote-Reading Options: None. D. General Requirements for Meters: 1. Billing Meters Accuracy: 0.2 percent of reading, complying with ANSI C12.20. 2. Certify that meters comply with ANSI C12.20 requirements by a laboratory accredited by the National 1 Voluntary Laboratory Accreditation Program (NVLAP) of the National Institute of Standards and Tech- nology(NIST). The laboratory shall use test equipment that is certified annually and is traceable to NIST standards. Certify they comply with AHJ. 3. Enclosure: Supplied by meter manufacturer, NEMA 250, Type 1 or Type 3R minimum, with provisions for locking or sealing. 4. Identification: Comply with requirements in Section 260553 "Identification for Electrical Systems." 5. Onboard Nonvolatile Data Storage: kWh, until reset. 6. Sensors: Current-sensing type, supplied by electronic meter manufacturer, with current or voltage out- put, selected for optimum range and accuracy for meters indicated for this application. a. Type: Split and solid core, complying with recommendation of meter manufacturer. 7. Meters and other measurement devices shall be configured to automatically communicate energy data to a data acquisition system. Source meters may be any digital-type meters. Current sensors or flow meters are allowed for end use metering, provided that they have an accuracy of+/- 5%. All required metering systems and equipment shall provide at least hourly data that is fully integrated into the data I acquisition and display system per this specification section. E. kWh Meter: Electronic single-phase and three-phase meters, measuring electricity use. I DURHAM EDUCATION CENTER SECTION 26 27 13 2 o1 5 082217 ELECTRICITY METERING I 1. Voltage and Phase Configuration: Meter shall be designed for use on circuits with voltage rating and phase configuration indicated for its application. 2. Display: Digital electromechanical counter, indicating accumulative kWh. F. kWhd Meter: Electronic single-phase and three-phase meters, measuring electricity use and demand. Demand shall be integrated over a 15-minute interval. 1. Voltage and Phase Configuration: Meter shall be designed for use on circuits with voltage rating and phase configuration indicated for its application. 2. Display: LCD with characters not less than 0.25 inch (6 mm) high, indicating the following: a. Accumulative kWh. b. Current time and date. c. Current demand. d. Historic peak demand. e. Time and date of historic peak demand. 3. Retain accumulated kWh and historic peak demand in a nonvolatile memory, until reset. G. Remote Reading Options: 1. Serial Interface: RS-232. 2. Serial Interface: RS-485,with Modbus RTU protocol or IP. 3. USB interface. 4. TCP/IP adapter. H. Current-Transformer Cabinet: Size and configuration as recommended by metering equipment manufacturer for use with indicated connected feeder and sensors. I. Uninterruptible Power Supply: Single phase, 120-V ac, sized and rated to provide continuous power to meter for operations of 48 hours after interruption of normal power. 1. Output: Sine wave,total harmonic distortion less than 5 percent at full load. 2. Battery: Maintenance free, sealed, lead acid, and leakproof. 3. Control Panel: LED status display of"on-battery," "replace battery,"and "overload." J. Data Transmission Cable: Comply with requirements in Section 260523"Control-Voltage Electrical Power Cables." K. Software: PC based, a product recommended by meter manufacturer, suitable for calculating utility cost allocation. 2.4 BUILDING ENERGY USAGE MONITORING SYSTEM A. System Description: Able to visually convey energy usage and PV production through manufacturer supplied "dashboard"software via a web page or other electronic document accessible to building management. B. Manufacturer: eGauge or approved equal. C. General Requirements for monitoring system: 1. The monitoring system shall include a data acquisition system that shall store the data from the re- quired meters and other sensing devices for a minimum of 36 months. For each end use category as noted previously, it shall provide real-time energy consumption data and logged data for any hour, day, month or year. 2. The monitoring system shall include either a readily accessible and visible display, or a web page or other electronic document accessible to building management and shall be provided in the building in a location accessible to all occupants.The display shall graphically provide the current energy con- sumption rate for each end use category, the PV generation, as well as the average and peak values for any day, week or year. 3. The monitoring system shall be provided by the manufacturer without any additional programming re- quirements by a 3rd party. All pieces required for this system to function as noted previously shall be provided by the manufacturer. The manufacturer shall setup the system to display the end use catego- ries as noted previously, and train the maintenance personnel on how the system can display addi- tional information as required. I I DURHAM EDUCATION CENTER 082217 SECTION 26 27 13 ELECTRICITY METERING Page 5 of 5 PART 3- EXECUTION 3.1 INSTALLATION A. Comply with equipment installation requirements in NECA 1. B. Install meters furnished by utility company. Install raceways and equipment according to utility company's written instructions. Provide empty conduits for metering leads and extend grounding connections as required by utility company. C. Install arc-flash labels as required by NFPA 70. D. Wiring Method: 1. Comply with requirements in Section 260519 "Low-Voltage Electrical Power Conductors and Cables." 2. Install unshielded, twisted-pair cable for control and signal transmission conductors, complying with Section 271513 "Communications Copper Horizontal Cabling." 3. Minimum conduit size shall be 1/2 inch (13 mm). 3.2 IDENTIFICATION A. Comply with requirements for identification specified in Section 260553 "Identification for Electrical Systems." 1. Series Combination Warning Label: Self-adhesive labels, with text as required by NFPA 70. 2. Equipment Identification Labels: Self-adhesive labels with clear protective overlay. 3.3 FIELD QUALITY CONTROL A. Testing Agency: Engage a qualified testing agency to perform tests and inspections. B. Perform tests and inspections with the assistance of a factory-authorized service representative. C. Tests and Inspections: 1. Equipment and Software Setup: a. Set meter date and time clock. b. Test, calibrate, and connect pulse metering system. c. Set and verify billing demand interval for demand meters. d. Report settings and calibration results. e. Set up reporting and billing software, insert billing location names and initial constant values and variable needed for billing computations. 2. Connect a load of known kilowatt rating, 1.5 kW minimum, to a circuit supplied by metered feeder. 3. Turn off circuits supplied by metered feeder and secure them in off condition. 4. Run test load continuously for eight hours minimum, or longer, to obtain a measurable meter indica- tion. Use test-load placement and setting that ensures continuous, safe operation. 5. Check and record meter reading at end of test period and compare with actual electricity used, based on test-load rating, duration of test, and sample measurements of supply voltage at test-load connec- tion. Record test results. 6. Generate test report and billing for each tenant or activity from the meter reading tests. D. Electricity metering will be considered defective if it does not pass tests and inspections. E. Prepare test and inspection reports. 3.4 SOFTWARE SERVICE AGREEMENT A. Technical Support: Beginning at Substantial Completion, service agreement shall include software support for two years. B. Upgrade Service:At Substantial Completion, update software to latest version. Install and program software upgrades that become available within two years from date of Substantial Completion. Upgrading software shall include operating system and new or revised licenses for using software. 1. Upgrade Notice:At least 30 days to allow Owner to schedule and access the system and to upgrade 111 computer equipment if necessary. 3.5 DEMONSTRATION A. Engage a factory-authorized service representative to train Owner's clerical and maintenance personnel to use, adjust, operate, and maintain the electronic metering and billing software. END OF SECTION I 111 DURHAM EDUCATION CENTER 082217 SECTION 26 27 26 WIRING DEVICES Page 1 of 4 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. B. Requirements of the following Division 26 Sections apply to this section: 1. Division 26 Section "Common Work Results for Electrical." 1.2 SUMMARY 2. Division 26 Section "Electrical Identification"for requirements for labels and engravings on wall plates. A. This Section includes the following: 1. Receptacles, receptacles with integral GFCI and associated device plates. 2. Twist-locking receptacles. 3. Floor service outlets 4. Switches and dimmers 5. Prefabricated Multioutlet Assemblies (Raceway) 1.3 SUBMITTALS A. Product data: For each type of product specified. B. Test Log: Record of all receptacle testing indicating areas tested, faults found and corrected, date and tester's identity. C. Installation & Maintenance Data: Include in the 0& M Manuals in accordance with Division 01 "Closeout Procedures"and Section 260500. 1.4 QUALITY ASSURANCE A. Source Limitations: Obtain each type of wiring device and associated wall plate through one source from a single manufacturer. B. Comply with NFPA 70 "National Electrical Code". 1. UL and NEMA Compliance: Provide wiring devices, which are listed and labeled by UL, and comply with applicable UL and NEMA standards. 1.5 COORDINATION A. Receptacles for Owner-Furnished Equipment: Match plug configurations. 1.6 SEQUENCE AND SCHEDULING A. Schedule installation of finish plates after the surface upon which they are installed has received final finish. PART 2- PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Hubbell Inc. 111 2. Pass and Seymour Inc./Legend 3. Leviton Mfg. Company, Inc. 4. Cooper Eagle 5. Wiremold Company 2.2 WIRING DEVICES A. General: Provide wiring devices, in types, characteristics, grades, colors, and electrical r for applications. See table below in section 3.3. stings and suitable B. Ground-Fault Interrupter(GFI) Receptacles: as indicated in Table 1 in Part 3 below; provide "NON feed-thru"type ground-fault circuit interrupter, with integral heavy-duty NEMA 5-20R duplex receptacles. Each location where GFI is indicated provide separate GFI receptacle; do not use feed-thru type receptacle. Provide unit designed for installation in a 2-3/4 inch deep outlet box without adapter, grounding type, Class A, Group 1, per UL Standard 94.3. Receptacle shall automatically fail open, de-energize, when the ground fault element fails. C. Receptacles with integral USB chargers: Provide 20A duplex receptacle, with 2 USB ports rated at 3.1A overall at a minimum. SECTION 26 27 26 f DURHAM EDUCATION CENTER Page 2 of 4 082217 WIRING DEVICES I D. Plugs: 20-amperes, 125-volts, 3-wire, grounding, armored cap plugs, parallel blades with cord clamp, and 0.4 inch cord hole; match NEMA configuration with power source's. E. Plug Connectors: 20-amperes, 125-volts, bakelite-body armored connectors, 3-wire, grounding, parallel blades, double wipe contact,with cord clamp, and 0.4 inch cord hole, match NEMA configuration to mating plug's. Arrange as indicated. F. Snap Switches: quiet type AC switches as indicated in Table 2 in Part 3 below. Comply with UL 20 and NEMA WD1. G. Dimmer Switches: Refer to drawings. equal.H. Floor outlets: To be flush type with ver and fce eeeorr approvgrand ed eequalMounting to be coordinated approved4 or . I. Cord Reel:To be Reelcraft LG3040 industrial grade ord rewith structural. 2.3 WIRING DEVICE ACCESSORIES A. General: Single and combination, of types, sizes, and with ganging and cutouts as required. B. Flush Wall Plates: Provide stainless steel faceplate matching ew devicehvunless othto emaise nof nt d by of plates.architect. Provide metal screws for securing plates to devices w 1. General: Provide stainless steel plates. a. Light switch wall plate: brush finish 302/304 non-magnetic stainless steel unless otherwise noted by architect. b. Receptacle wall plate: brush finish 302/304 non-magnetic stainless steel unless otherwise noted by architect. 2. Special Purpose NEMA Receptacles: Provide same color and type plates as General. 3. Other Special Purpose Receptacles: Provide standard manufacturer's plates which mate and match with wiring devices to which attached. 4. Device Color: Provide device color as follows: a. Red device and red plates for emergency circuits h C. 1. a Box t Plates: plates and all pers lates indoors ch andthe weatherproofdimensions. plates for exterior,wet location 1. Cast Metal Boxes: Provide flushp and where shown with "WP"tag on floor plans and details. D. Weatherproof Cover Plates: NEMA 3R as specified below. Provide silicon caulking weherton required, RedDot 1. Toggle Switches: Lever type (no cover to lift); Crouse-Hinds DS185 Series, App CCT-1-20 series or approved substitute. E. Exterior and wet location single&duplex erhorizontales: Listed fcoveor wet or locationproveds withubstutuilization plug inserted in wiring device; RedDot CodeKeeper, aluminum F. Engraved Plates: Provide wall plates as specified with engraved legend where indicated. Conform to requirements of Section 260553"Electrical Identification." 2.4 MULTIOUTLET ASSEMBLIES A. Description: 1. Two-piece surface metal raceway. 2. Provide dual channel raceway to separate either low voltage wiring from normal power or to separate standby power from normal power. 3. Components shall be products from single manufacturer designed for use as a complete, matching assembly of raceways and receptacles. 4. Provide all devices, covers, dividers, elbows, connectors,fittings, etc for a complete raceway system in each area. I B. Raceway Material: Stainless Steel or Aluminum as identified on drawings. C. Devices and conductors: 1. Receptacles: 20-A, 125-V, NEMA WD 6 Configuration 5-20R receptacles complying with NEMA WD 1, UL 498, and FS W-C-596. 2. Receptacle Spacing: As noted on drawings. 3. Wiring: No. 12 AWG solid,Type THHN copper. Quantity of circuits as noted on drawings. I DURHAM EDUCATION CENTER 082217 SECTION 26 27 26 WIRING DEVICES Page 3 of 4 PART 3-EXECUTION i3.1 INSTALLATION OF WIRING DEVICES AND ACCESSORIES A. Comply with NECA 1, including the mounting heights listed in that standard, unless otherwise noted. B. Coordination with Other Trades: 1. Take steps to insure that devices and their boxes are protected. Do not place wall finish materials over device boxes and do not cut holes for boxes with routers that are guided by riding against outside of the boxes. I2. Keep outlet boxes free of plaster, drywall joint compound, mortar, cement, concrete, dust, , a other material that may contaminate the raceway system, conductors, and cables. p nd 3. Install wiring devices after all wall preparation, including painting, is complete. C. Conductors: 1. Do not strip insulation from conductors until just before they are spliced or terminated on devices. 2. Strip insulation evenly around the conductor using tools designed for the purpose. Avoid scorin or nicking of solid wire or cutting strands from stranded wire. g I 3. The length of free conductors at outlets for devices shall meet provisions of NFPA without pigtails. 70, Article 300, D. Device Installation: I1. Replace all devices that have been in temporary use during construction or that show signs that they were installed before building finishing operations were complete. 2. Keep each wiring device in its package or otherwise protected until it is time to connect conductors. 3. Do not remove surface protection, such as plastic film and smudge covers, until the last possible moment. 4. Connect devices to branch circuits using pigtails that are not less than 6 inches (152 mm) in length. 5. When there is a choice, use side wiring with binding-head screw terminals. Wrap solid conductor tightly II clockwise, 2/3 to 3/4 of the way around terminal screw. g 6. Use a torque screwdriver when a torque is recommended or required by the manufacturer. g y 7. When conductors larger than No. 12 AWG are installed on 15-or 20-A circuits, splice No. 12 AWG pigtails for device connections. 8. Tighten unused terminal screws on the device. 9. When mounting into metal boxes, remove the fiber or plastic washers used to hold device mounting screws in yokes, allowing metal-to-metal contact. 10. Ground per specification section "Grounding and Bonding for Electrical Systems" E. Receptacle Orientation: 1. Install ground pin of vertically mounted receptacles down, and on horizontally mounted receptacles to the right. 111 F. Device Plates: Do not use oversized or extra-deep plates. Repair wall finishes and remount o when standard device plates do not fit flush or do not cover rough wall opening. utlet boxes G. Dimmers: 1. Install dimmers within terms of their listing. 2. Verify that dimmers used for fan speed control are listed for that application. 3. Install unshared neutral conductors on line and load side of dimmers according to manufacturers' I device listing conditions in the written instructions. H. Arrangement of Devices: Unless otherwise indicated, mount flush, with long dimension vertical and with grounding terminal of receptacles on bottom. Group adjacent switches under single, multi-gang wall plates. I I. Do not locate receptacles or outlets on opposite sides of fire rated walls and fire-rateda 24"apart. Refer to architectural drawings for locations of fire-rated walls. On all other non-fire rated walls locate outlets slightly offset, i.e. do not install them back-to-back. p rtitions closer than $ J. Acoustic Partitions: Electrical and cable outlets shall not be located within 24"of each other between Outlets shall be sealed with resilient sealant. Should boxes be fitted closer than this, the backside of electrical outlets shall be fitted with a clay-pack. rooms. 3.2 PROTECTION 111 A. Protect installed components from damage. Replace damaged items prior to final acceptance. I DURHAM EDUCATION CENTER SECTIO PN 26 27ate 2 of26 4 082217 WIRING DEVICES 3.3 FIELD QUALITY CONTROL _ proper A. Testing: Prior to energizing circuits,test wiring for to enrical ergizing,ngt'testywa for devices and demonstrateshall be polarity of connections is maintained. Subsequentproblems, the entire circuit compliance with requirements. Where devices are determined to have p re-verified. polarity and grounding. B. Test all receptacles with go/no-go hand tester for proper p Y Test round fault interruptor operation with both local and remote fault simulations in accordance with C. 9 manufacturer recommendations. TABLE 26 27 26-1: RECEPTACLES NEMA Current Ratings Voltage Rating (VAC) Single/ Duplex Configuration UL Grade Notes Typical Application (2) (amps) MEM Duplex 5-20R Heavy Duty (1) SpecfPurpose 20 5-20R Heavy Duty (1) 20 Single Specific Purpose 111111211111 Single 5-15R General Duty Clock Hanger I Duplex 5-20R Integral Heavy (4)(1) Ground Fault Circuit 20 Duty Interrupter lu s. "Heavy-duty' is denoted as receptacle with Notes: ampere and 20 ampere p g (1) Receptacle accepts both 15 single piece brass backstrap and with nylon, or better, type face material. clock. (2) See drawings for electrical legend. (3) Device is a clock type outlet with device recessed below face of cover plate with hook to ang (4) Provide dedicated GFI per location. TABLE 26 27 26-2:AC SWITCHES Typical Application (1)Load Rating Voltage Rating (VAC) Poles UL Grade Notes 1 Heavy Duty (5) 20 A 120/277 Control Lights 120/277 3-way Heavy Duty (5) Control Lights 20 A 120/277 1 Heavy Duty (5) Motor Disconnect 1 HP . 600 2 or 3 Heavy Duty (5) Motor Disconnect 5 HP 120 1 Heavy Duty (5) Dimmer Switch 600 VA Pilot Light 20 A 120/277 v Heavy Duty mg Notes: a of switch is determined from plan context including type of I (1) See drawings for electrical legend. Typ device or circuit being controlled. ed to ether. (2) No overload element in switch. (3) Derate dimmer switch per manufacturer's recommendations where dimmers are gang (4) Pilot light"on"when switch is"on". switch (5) "Heavy-duty" is denoted as manufacturer's highest grade 111 END OF SECTION 0 I I DURHAM EDUCATION CENTER 082217 SECTION 26 28 16 I ENCLOSED SWITCHES AND CIRCUIT BREAKERS Page 1 of 4 I PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and 1.2 SUMMARY other Division 01 Specification Sections, apply to this Section. A. Section Includes: 1. Fusible switches 2. Nonfusible switches 3. Shunt trip switches 4. Molded-case circuit breakers (MCCBs) 5. Enclosures 1.3 DEFINITIONS I A. NC: Normally closed B. NO: Normally open C. SPDT: Single pole, double throw I1.4 PERFORMANCE REQUIREMENTS A. Seismic Performance: Enclosed switches and circuit breakers shall withstand the effects of earthquake motions determined according to ASCE/SEI 7. 1. The term "withstand"means "the unit will remain in place without separation of any parts from the de- vice when subjected to the seismic forces specified." 1.5 SUBMITTALS IA. Product Data: For each type of enclosed switch, circuit breaker, accessory, and Include dimensioned elevations, sections, weights, and manufacturers'technical da aeonent on featu esated. performance, electrical characteristics, ratings, accessories, and finishes. I 1. Enclosure types and details for types other than NEMA 250, Type 1. 2. Current and voltage ratings. 3. Short-circuit current ratings (interrupting and withstand, as appropriate). 4. Detail features, characteristics, ratings, and factory settings of individual overcurrent protective devices, accessories, and auxiliary components. B. Shop Drawings: For enclosed switches and circuit breakers. 1. Include plans, elevations, sections, details, and attachments to other work. 111 2. Wiring Diagrams: For power, signal, and control wiring. C. Qualification Data: For qualified testing agency. D. Seismic Qualification Certificates: For enclosed switches and circuit breakers, accessories, and components, from manufacturer. 1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation. I/ 2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions. 3. Detailed description of equipment anchorage devices on which the certification is based and their in- stallation requirements. E. Field quality-control reports. 1. Test procedures used. 2. Test results that comply with requirements. 1 3. Results of failed tests and corrective action taken to achieve test results that com I with r F. Manufacturer's field service report. P Y equirements. G. Operation and Maintenance Data: For enclosed switches and circuit breakers to include in emergency, operation, and maintenance manuals. In addition to items specified in Division 01 Sec Maintenance Data," include the following: y Section "Operation and 1. Manufacturer's written instructions for testing and adjusting enclosed switches and circuit breakers. 11 SE CTION DURHAM EDUCATION CENTER P 26 28age 2 of16 4 082217 ENCLOSED SWITCHES AND CIRCUIT BREAKERS 2. Time-current coordination curves (average mcent type anddt rating e of overcurrent protective de- vice; include selectable ranges for each type of overcurrent 1.6 PROJECT CONDITIONS A. Environmental Limitations: Rate equipment for continuous operation under the following conditions unless otherwise indicated: 1. Ambient Temperature: Not less than minus 22 deg F and not exceeding 104 deg F. 2. Altitude: Not exceeding 6600 feet. 1.7 COORDINATION wi h equipment and I A. Coordinate layout and installation of switches, circuit breaks, s andnrequiredd oc earanctes for equipment a c cess adjacent surfaces. Maintain required workspace clea ance doors and panels. PART 2- PRODUCTS 1 2.1 FUSIBLE SWITCHES products by one of the following: A. Manufacturers: Subject to compliance with requirements, provide 1. Eaton Electrical Inc.; Cutler-Hammer Business Unit. 2. Square D; a brand of Schneider Electric. B. Type HD, Heavy Duty, 600A and Smaller: UL 98 and NEMA K 1, horsepower rated, with clips rloc bolt por ads to accommodate specified fuses, lockable handle with capabilityto accept two padlocks, with cover in closed position. 2.2 NONFUSIBLE SWITCHES A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. EatonElectrical Cutler-Hammer BusinessUn 2. Square D; brrand of SchneideElectric. B. Type HD, Heavy Duty, 600 A and Smaller: UL 98 and with NEMin Slosed horsepower rated, lockable handle with YP capability to accept two padlocks, and interlocked C. Provide auxiliary contacts to break contact to motor drives when used with motors. 2.3 SHUNT TRIP SWITCHES products by one of the following: A. Manufacturers: Subject to compliance with requirements, provide 1. Cooper Bussmann, Inc. 2. Ferraz Shawmut, Inc. 3. Littelfuse, Inc. B. General Requirements: Comply with ASME A17.1, UL 50, and UL 98,with 200-kA interrupting and short- circuit current rating when fitted with Class J fuses. C. Switches: Three-pole, horsepower rated,with integral padlocks; interlocked w'i hunt trip lsm and Class J fuse cover in closed pos'tionock; lockable handle with capability to accept three D. Control Circuit: a obtained power withrmer, primaryand secondary ry V fuses,wita ontrot power transformer enough capacity to operate shunt trip, connected pilot, and indicating and control devices. E. Accessories: 1. Oiltight key switch for key-to-test function. 2. Oiltight green ON pilot light. 3. Isolated neutral lug; 200 percent rating. 4. Mechanically interlocked auxiliary contacts that change state when switch is opened and closed. 5. Form C alarm contacts that change state when switch is dpc coil voltage. 6. Three-pole, double-throw,fire-safety and alarm relay; with NFPA 72. 7. Three-pole, double-throw,fire-alarm voltage monitoring relay complying 2.4 MOLDED-CASE CIRCUIT BREAKERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Eaton Electrical Inc. 2. Square D; a brand of Schneider Electric. DURHAM EDUCATION CENTER SECTION 26 28 16 1 082217 ENCLOSED SWITCHES AND CIRCUIT BREAKERS Page 3 of 4 B. General Requirements: Comply with UL 489, NEMA AB 1, and NEMA AB 3, with interru tin capacity to comply with available fault currents. P g C. Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads and instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for circuit-breaker frame sizes 250 A and larger. D. Adjustable, Instantaneous-Trip Circuit Breakers: Magnetic trip element with trip setting. front-mounted, field- adjustable I E. Electronic Trip Circuit Breakers: Field-replaceable rating plug, rms sensing, with the followingfield- adjustable settings: 1. Instantaneous trip. 2. Long-and short-time pickup levels. 3. Long-and short-time time adjustments. 4. Ground-fault pickup level, time delay, and I2t response. F. Ground-Fault, Circuit-Interrupter(GFCI) Circuit Breakers: Single-and two-pole configurations with Class A G. Features and Accessories: 1. Standard frame sizes, trip ratings, and number of poles. I 2. Lugs: Compression type, suitable for number, size, trip ratings, and conductor material. 3. Application Listing: Appropriate for application; Type SWD for switching fluorescent lightin load Type HID for feeding fluorescent and high-intensity discharge lighting circuits. g s' 4. Ground-Fault Protection: Comply with UL 1053; integrally mounted, self-powered type with mech ground-fault indicator; relay with adjustable pickup and time-delay settings, push-to-test feature, inter- nal memory, and shunt trip unit; and three-phase, zero-sequence current transformer/sensor. arncal 5. Shunt Trip: Trip coil energized from separate circuit, with coil-clearing contact. I 6. Alarm Switch: One NC contact that operates only when circuit breaker has tried. 7. Accessory Control Power Voltage: 12-V dc and 24-V dc. PP 2.5 ENCLOSURES IA. Enclosed Switches and Circuit Breakers: NEMA AB 1, NEMA KS 1, NEMA 250, environmental conditions at installed location. and UL 50, to comply with 1. Indoor, Dry and Clean Locations: NEMA 250, Type 1. 2. Outdoor Locations: NEMA 250, Type 3R. 3. Wash-Down Areas: NEMA 250, Type 4X, stainless steel. 4. Other Wet or Damp Indoor Locations: NEMA 250, Type 4. 5. Indoor Locations Subject to Dust, Falling Dirt, and Dripping Noncorrosive Liquids: NEMA 250, Type 12. 6. Hazardous Areas if Indicated on Drawings: NEMA 250, Type 7 or Type 9. PART 3- EXECUTION 3.1 EXAMINATION A. Examine elements and surfaces to receive enclosed switches and circuit breakers for compliance with I installation tolerances and other conditions affecting performance of the Work. p B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 INSTALLATION IA. Coordinate layout and installation of switches, circuit breakers, and components with equipment served and adjacent surfaces. Maintain required workspace clearances and required clearances for equipment access doors and panels. IB. Install individual wall-mounted switches and circuit breakers with tops at uniform indicated. height unless otherwise C. Comply with mounting and anchoring requirements specified in Division 26 Section "Vibration and Seismic D. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and temporary blocking of moving parts from enclosures and components. E. Install fuses in fusible devices and provide spare fuses for each fusible device. 2 6 DURHAM EDUCATION CENTER SECTION Pa26428of416 082217 ENCLOSED SWITCHES AND CIRCUIT BREAKERS F. Comply with NECA 1. 3.3 IDENTIFICATION A. ComplyElectrical Systems."components; provide warning signs. with requirements in Division 26 Section"Identifications d y field-installed conductors, 1. Label enclosure with engraved metal or laminated-plastic nameplate. 2. Lab 3.4 ADJUSTING t movin parts and operable components to function smoothly, and lubricate as recommended by A. Adjus 9 manufacturer. B. Set field-adjustable circuit-breaker trip ranges as specified in Section 260573 "Overcurrent Protective De- vice Coordination Study." END OF SECTION I I I I I I I I I I I a DURHAM EDUCATION CENTER 060617 SECTION 26 31 00 PHOTOVOLTAIC SYSTEM Page 1 of 9 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. B. Division 26 Specification Sections apply to the work of this Section, except as modified by the Drawings and this Section. 1.2 SUMMARY A. These specifications cover Photovoltaic(PV) Systems requirements including, but not limited to equipment, hardware, software, documentation, labor, materials, and supervision required for the installation of grid- connected PV systems, and training for Owner designated personnel. B. Section includes, but is not limited to the following: 1. Infrastructure, wiring, connections, and testing. 2. Photovoltaic modules and module arrays. 3. Array mounting rack. 4. DC splice boxes. 5. Inverter systems and inverters. 6. Monitoring equipment and Control software. 7. Disconnects. 8. Metering equipment and interfacing with utility company meter. 9. Identification, warning labels and signs. 10. Provide all labor and materials, and make all necessary connections, so that a complete and fully op- erational system shall be turned over to the owner. Any errors, omissions, or ambiguities concerning the PV system drawings and specifications shall be brought to the attention of the Engineer of Record prior to starting any work. 1.3 GENERAL REQUIREMENTS A. Work included in this section:All design, materials, labor, equipment, services, and incidentals necessary to install a complete Photovoltaic(PV) System as shown in the contract documents and as specified to form a complete installation, ready for operation to produce solar power at the site, including but not limited to the work listed below. Delivery of this system will be Design Build as defined in Specification Section 26 01 00. B. System installer shall submit for and pay for the required permits and inspections with the local AHJ and utility company. C. The installer shall complete all of the required paper work for the utility interconnection agreement contract in conjunction with the owner's input and approval, including rate schedule designations. In order for the Installer to act on behalf of the owner, the Installer(in conjunction with the owner)shall submit to the utility company the proper authorization forms. D. The installer shall submit filing fees for and obtain any relevant buy-down incentive rebates available for the system and properly credit the value to the owner. This shall include application (and payment)of all required "reservation"applications as well as system applications and system certification and testing with the utility company to receive the final rebates. E. The installing contractor shall be responsible for adequate clearance and equipment space within each allotted areas. Additional floor area within the buildings will not be made available for PV system equipment beyond that shown in these documents. F. The system shall comply with the contract documents, all codes, and local authorities. The equipment includes, but is not limited to, PV modules, inverters, disconnects, wire, conduit,junction boxes, mounting hardware, and monitoring equipment. G. System installer shall furnish and/or pay for all materials, fees, permits, not covered in the general building permit, labor, tools, equipment, transportation and services required for a complete installation. H. Contractor shall provide access to equipment for maintenance and service as required by the manufacturer's instructions and/or applicable codes. I DURHAM EDUCATION CENTER SECTION 26 31 00Pa26 3 of 9 060617 PHOTOVOLTAIC SYSTEM I I. The Contractor shall coordinate with the Architect on the locations and appearance of all exposed equipment, including but not limited to, support rails, PV modules, conduit, inverter,wireways, exposed cables and control and monitoring equipment. All locations must be approved by the Architect. J. The Contractor shall obtain a complete set of Construction Documents, including all addenda and modifications, for the building and be familiar with the work of other trades as shown on the building Construction Documents. K. Given that the PV system installation requires work to be performed by various sub-contractors,the Contractor shall provide coordination with all trades needed for a complete installation including all required electrical services, building integration elements, monitoring equipment, and clearances. L. The Contractor shall comply with all requirements of Division 26 and with the conditions of the Contract. The Contractor shall comply with the general conditions of this specification for requirements for submittals, substitutions, testing, training, warranty, damage responsibility, permits,fees, clean-up, and all other general items, in addition to any specific requirements of this section M. Work shall comply with all applicable codes, standards, local authorities, utilities and manufacturer's instructions/recommendations. III N. All work shall comply with the Building Department, Health Department, Fire Department, and all other local authorities having jurisdiction. IO. All work, including equipment, materials, and installation shall conform to National Electric Code; and Uniform Fire Code, editions under jurisdiction. P. The minimum requirement of the more stringent code or standard shall govern where more than one code or standard is applicable to any component or condition. in the specifications that is contrary to Q. The Contractor shall immediately notify the Architect of any provision the applicable codes. R. Any work performed by the Contractor at variance with the applicable codes and without prior written approval of the Architect shall be corrected as required without additional cost to the Owner. 1.4 SYSTEM REQUIREMENTS A. The Contractor shalldesign, provide, rating)grid-tied photovoltaic(PV)system. System will be capable of producing minimum of48000 kWh annually. Annual electricity production calculations to be provided for review. B. Refer to the contract documents for the roofdrawings for ae detas to be ovidd withls. IncludePV (es to any required red structural the lte r I system. Refer to the Architectural and Structural 9 architectural engineering calculations in the bid amount, related to the PV system installation. e C. The system shall be utility grid connected and applgcano storaefions for theatteries. he contractor shallcomplete inte conbecfion of the PV for all required local utility coordination, approval, system with the local utility grid, including bi-directional utility meter. D. The system shall consist of multiple arrays of framed photovoltaic modules, all mounting hardware, splice boxes and combiner panels, quick-connect electrical collectors, DC wiring, DC disconnects, utility interactive inverters, AC disconnects, all related AC feeders, main PV distribution panel, main PV system disconnect, and a complete monitoring system to allow the owner to monitor and utilize the collected data. E. TheP hotovoltaic contract documents show available equipment locations for the PV docutments.em. he I Contractor must obtain approval before altering any of the criteria set forthin these F. All DC conductorsg circuit over the entire(s a maximum of 2%voltage length of each circuit from PV module measured be at the short module to inverter and back circuit current rating of of thatsized to PV module. All AC conductors shall be sized for a maximum of 2%voltage drop measured at the continuous AC current rating of the inverter between the inverter and the point of interconnection with the grid. G. Each series string of PV modules a( bpt ( circuit.protected by isolation breaker before it is connected parallel with the on that output Thecurent rating of this solation fuse or breaker shall be less than the de-rated ampacity of the wiring that it is protecting and greater than cuit. l other times the short circuites shallbe sized perrfthe equirementsof National Electric Code the PV odules r (NEC)((( Article ctors I and690-8. and overcurrent devices I IDURHAM EDUCATION CENTER 060617 SECTION 26 31 00 IPHOTOVOLTAIC SYSTEM Page 3 of 9 1.5 APPLICABLE GUIDELINES/REGULATIONS/STANDARDS 1 A. National Electric Code (NEC) 1. Article 690—Solar Photovoltaic Systems. 2. Article 250- Grounding. 3. Article 110—Requirements for Electrical Installations. B. IEEE Standards 1. IEEE 1262 (1995)—PV Module Qualification for Performance and Reliability. 2. IEEE 929 (2000)—Inverter Interconnection Standard. C. Underwriter's Laboratories (UL)Standards 1. UL1703— Flat Plate PV Modules and Panels. 2. UL1741 —Standard for Static Inverters and Charge Controllers for Use in Photovoltaic Power Sys- Items. D. National Fire Protection Association Standards E. CPUC approved Electric Rule 21 —Generating Facility Interconnections F. OSHA Standards 1926 Subpart M —Fall Protection 1.6 UTILITY APPROVAL 111 A. Once the Contractor has all required building and electrical permits, Contractor shall file all required paperwork and forms with the Utility to apply for interconnection with the utility grid. B. Upon receipt of final building inspection approval, Contractor shall immediately send a copy of the signed- off building permit to the Utility and schedule the final inspection for the system. This inspection shall be scheduled for a date no later than two weeks after the date of final building inspection. 1.7 QUALITY ASSURANCE IA. Source Limitations: All PV Modules shall be from a single manufacturer and a single vendor. B. Photovoltaic modules shall be tested in the factory for design performance and results shall be included in the Operation and Maintenance manuals. IC. Inverters shall be factory tested for performance and results shall be included in the 0 & M manuals. D. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. 1.8 DELIVERY, STORAGE, AND HANDLING A. All equipment and modules shall be handled with care so as not to damage the delivered products. All equipment shall be installed in new and neat condition. I B. From the time the equipment is received until final installation, store it in a secure location protected the weather. p ed from 1.9 WARRANTY IA. The Contractor shall warrant that the work conforms to Contract requirements and is free of any B. The Contractor shall provide a minimum of a full two-year warranty against breakdown or degradation defects. of electrical output. The warranty must cover all of the components of the PV generating system against breakdown or degradation in electrical output of more than 10% of their originally rated electrical output. The warranty shall cover the full parts and labor cost of repair or replacement of defective components or systems for a period of two years from the date of acceptance by the owner. IC. The photovoltaic modules shall be covered by a manufacturer warranty for a minimum of 20 years. D. The inverters shall be covered by a manufacturer warranty for a minimum of 5 years. E. Any defective materials or inferior workmanship during installation and/or the warranty periodbe 1.10 SUBMcorrected ITTALS immediately to the entire satisfaction of the Architect and without additional costto theall Owner. A. Conform to the requirements of Section 013300, Submittals, and the following: 1. Assemble Letter of Compliance and all Product Data in a single binder, with index and tabs each cate- gory of product. I DURHAM EDUCATION CENTER SECTION 26 31 00 Page 3 of 0 060617 PHOTOVOLTAIC SYSTEM 2. Bind Shop Drawings and include a cover sheet with sheet index. B. Letter of Compliance: Provide a Letter of llance,of the listing parag paragraph or, f any deviaragraph tion is proposed,ber of this specification I and indicating compliance with nature and reason for the deviation. C. Product Data: For approval prior cha actee st cs,ffurn shedorder,forspec alt es,each typeoandoaccessories. Fornpag s which hI capacities, weights, operating include products not relevant to the project, clearly mark which products are being submitted. 1. PV Modules 2. DC/AC Inverter Systems III 3. DC splice boxes 4. Conductors 5. Combiner Boxes with fusing 6. Disconnect Switches 7. Cable Management 8. Warning Signs and Placards 9. Installation Manuals D. Shop Drawings: For approval prior to release of order or starting work: 1. Coordination Drawings for Architect's approval of exposed raceway routing and support as required on the Drawings. I 2. Coordinated roof plan drawing indicating all equipment and devices located on the roof. This includes but is not limited to architectural, plumbing, electrical and mechanical equipment. 3. Wiring diagrams to detail power, signal, control, ata collection c' Identify wir- ing color-codes to facilitate installation, oPeration, andmantenaneIndiatewire types and sizes, and circuiting arrangements for field-installed system wiring. 4. Plans with the PV System layout(based on submitted module) 5. Details of seismic restraints including mounting, anchoring, and fastening devices. 6. pDrawingsalaf Mountingbracing, and locateoceltaic Modules: Show dimensioned layout of nter of gravity of fully equipped and assembled rack components,ointernal seismic unit. Locate and describe mounting and anchorage provisions. Include structural load calculations prepared by, and signed by, a registered Professional Engineer in the State of Oregon. t c E. Manufacturer Seismic Qualification Con: Submit are designed to certificationemaint naplacetwithou't separation om panynts and their mounting and anchorageprovisions parts when subjected to the seismic forces defined in Division 26 Section "Electrical Supports and Seismic Restraints." Include the following: 1. Basis for Certification: Indicate whether certification is based on actual test of assembled components or on calculation. 2. Detailed description of equipment anchorage devices on which the certification is based and their in- II stallation requirements. F. Field quality-control test reports. 1b it prior and 1 proal punch list visit,with system in operation. Take measurements in full sun between 1. Open Circuit Voltage measured for each string 2. Short Circuit Current measured for each string 3. Operating current measured for each string 4. Output current measured for each phase of each inverter system r to G. Refer tion and MaintenancelSecM"Record Documents and Owner uals: Contractor shall Inst Instruction". Each manual shO&M l c include the Refer to Division 01 Section Re following: 1. Installation manuals, programming manuals, user manuals, and part numbers if applicable for every major system component. Catalog cut sheets are not acceptable. 2. A printed copy of the system configuration, including all system labeling codes, and passwords. 3. An electronic copy of the system configuration program on compact disk. 4. Final test report. 5. Detailed explanation of the operation of the system. 6. Instructions for routine maintenance. I IDURHAM EDUCATION CENTER SECTION 26 31 00 060617 PHOTOVOLTAIC SYSTEM Page 5 of 9 7. Detailed wiring diagrams and updated shop drawings that include all revisions made in the field via i plan changes, RFIs, Field Change Directives, and any other construction change documents including interface details with other systems. 8. Provide a CD ROM electronic copy of the updated system Record Drawings to the Architect, prepare this copy in the latest version of AutoCAD; along with the electronic copy de a full size bond copy.Include one CD-ROM of the up-dated Record Drawings into each of the O&Mprov'Manuals. CD and folded drawings shall be secured and inserted into the O&M Manuals via a three-hole punched protective CD case and protective envelopes for the drawings. 1 9. All materials and required deliverables shall be submitted to the Architect. PART 2- PRODUCTS 2.1 GENERAL A. All materials, fixtures, and equipment required for the work shall be new, of first-class quality, and shall be furnished, delivered, erected, connected and finished in every detail, and shall be selected and arranged as to fit properly into spaces provided. Where no specific kind or quality of material is given, a first-class II standard article as approved by the Architect shall be furnished. B. All equipment shall be listed and labeled per recognized electrical testing laboratory and installed per the listing requirements and the manufacturer's instructions. 2.2 PHOTOVOLTAIC MODULES A. Manufacturer and model: Provide SolarWorld, Evergreen, BP Solar, Sharp, SunPower, SunTech or pre- approved equal. B. Provide equipment as specified on the drawings. Provide all accessories needed for a operational grid-tied PV system. complete, secure, C. PV modules shall be IEEE 1262 compliant and listed to UL Standard 1703. 2.3 DC/AC INVERTER SYSTEMS A. Manufacturer and model: Provide the following: I1. Advanced Energy, SMA or approved equal. B. The inverter systems shall have the following physical properties and accessories: 1. Nominal AC Voltage: 277/480 VAC, 3-phase, 4-wire, 60 Hz. 2. AC Current Distortion (At rated power) <3% THD 3. Maximum Open Circuit Voltage 600 VDC. 4. Power Tracking Window Range 295 to 595 VDC. 5. Maximum Ripple Current(%of rated current) <5%. I 6. Peak Inverter Efficiency>97%. 7. Weighted CEC Efficiency>95.0% 8. Standby Tare Losses<40 watts. 9. Enclosure Environmental Rating NEMA 4. 10. Relative Humidity(non-condensing)0-95%. 11. Array Configuration: Monopole, negative grounded 12. Protective Functions: a. Standard wakeup voltage. b. Wakeup time delay. c. Shut down power. d. Shut down time delay. 111 e. AC over/under voltage and time delays. f. AC over/under frequency and time delays. g. Ground over current. I h. Over-temperature. i. AC and DC over current. j. DC over voltage. 13. DC Combiner panel with fuses integrated in system enclosure. 14. AC Disconnect: integrated in system enclosure, load break rated. 15. DC Disconnect: integrated in system enclosure, 600 VDC load break rated. 16. Isolation Transformer: High efficiency, floor mount enclosure. 1 DURHAM EDUCATION CENTER SECTION 26 31 00Pa26 3 of 0 060617 PHOTOVOLTAIC SYSTEM I 17. Communications Software: Serial communications and control software. 18. Web-enabled monitoring gateway. C. All inverters shall be IEEE 929 compliant, listed to UL Standard 1741, and inspected by the Utility before commissioning, testing, and operation of the system. 1. The inverter shall automatically drop-off-line when normal utility power is lost to avoid un-intentional islanding effects. Drop-off to be activated by over-voltage (110%)and under-voltage (88%), and shall be adjustable. Frequency drifts outside 59.3 to 60.5 Hz for more than 10 cycles shall also activate au- tomatic drop-off. Automatic reconnection shall not occur until the normal utility power has been stable for at least 60 seconds. r D. All electrical system equipment shall be properly rated to withstand and interrupt(in the case of over current protection devices)the available fault current at the point of use. E. All required overcurrent protection and electrical bussing sizes per NEC 690. 2.4 ARRAY MOUNTING A. Modules shall bmounted the the patterns shownstanding seam fonructure, with the PV Systempropriate racking construction drawings. are and structural attachments. I B. Manufacturer and model: Provide the following: 1. SnapNrack Series 500 Standing Seam system or approved equal. a. Use appropriate clamp based on final panel selection. b. Coordinate with roof manufacturer to choose appropriate clamp and maintain warranty. C. Provide manufacturer's accessories and hardware for a complete installation. 2.5 DC SPLICE BOXES A. Manufacturer and Model: Provide the following: 1. Hoffman A604CHNF with cable gland fittings for USE-2 cable. 2.6 DISCONNECTS A. Provide Heavy-Duty, NEMA 3R disconnects as specified on the drawings. 2.7 WIRE AND CABLE A. Conductors: Copper,with insulation type and sizes as indicated on the drawings. B. Conductor Color-Coding: Uniformly identified and coordinated with wiring diagrams. 2.8 WARNING LABELS AND SIGNS I A. Comply with NFPA 70 and 29 CFR 1910.145. B. Baked-Enamel Warning Labels and Signs: 1. Preprinted aluminum signs, punched or drilled for fasteners, with colors, legend, and size required for application. 2. 1/4-inch (6.4-mm)grommets in corners for mounting. 3. Nominal size, 7 by 10 inches (180 by 250 mm). 2.9 MONITORING SYSTEM 111 A. Manufacturer and Model: Provide the following: 1. eGauge Monitoring system per specification section 262713. B. Provide a complete system including all hardware, cabling and software installation required for the data to be available for viewing via web browser. C. Coordinate any requirements related to Energy Trust of Oregon incentives for solar system installation and monitoring. PART 3- EXECUTION I 3.1 INSTALLATION A. Photovoltaic system shall be interconnected with the utility grid per the requirements of NEC Art. 690-64 (b), Load Side Connection. B. Provide warning signs as required by applicable codes. I iDURHAM060617 EDUCATION CENTER SECTION 26 31 00 111 PHOTOVOLTAIC SYSTEM Page 7 of 9 C. Mount system components with fastening methods and devices designed to resist the seismic forces I/ indicated in Division 26 Section "Electrical Supports and Seismic Restraints." D. Prepare framing to receive PV modules in accordance with manufacturer's recommendations and in compliance with accepted shop drawings. iE. All equipment shall be properly grounded per the requirements of the National Electric Code, Article 250. F. Wiring: Install 60-Hz wiring according to NFPA 70. Install data cable complying with TIA/EIA-568-A. Install number of conductors recommended by system manufacturer for functions indicated, and as follows: I 1. Conceal wiring except where indicated on the drawings and in unfinished spaces. 2. Wiring Method: a. Install DC power wiring concealed beneath PV Modules from the modules to the DC Splice Box. Support wiring by tie-wrapping to the support rails. 111b. Install power wiring in raceways from the DC Splice Box to the utility transformer. 3. Raceways: Provide raceways suitable for the area installed. 4. Location of boxes and raceways on Drawings is approximate, unless dimensions are indicated. Do not I scale Drawings to determine locations and routing of conduits. Location of the infrastructure and equipment shall conform to architectural features of the structure and other Work already in place, and must be ascertained in the field before the start of Work. 5. Drawings generally indicate Work to be provided, but do not indicate all bends, transitions or special 1 fittings required to clear beams, girders or other work already in place. Investigate conditions where conduits are to be installed, and furnish and install required fittings. 6. The PV structure shall be inspected prior to start of any work. Any observed deficiencies shall be I brought up to the attention of the Architect prior to commencing any work. 7. Wiring within Enclosures: Bundle, lace, and train conductors to terminal points with no excess. 8. System Installation shall conform to Manufacturers Installation Manual and approved project drawings and specifications. 9. All PV modules to be installed such that they are 100%free from shade between 8am and 5pm daily. 10. No dissimilar metals allowed to contact(use plastic or rubber washers). 11. No aluminum in contact with concrete or masonry materials. I 12. Use high quality stainless steel fasteners only. 13. An inverter backfeed disconnect shall be provided in a location that is less than 10 feet from the elec- trical meter. Opening of this disconnect shall prevent all solar power sources on site from backfeeding the grid. 1 14. All exterior equipment to be sunlight and UV resistant as well as rated for elevated temperatures at which they are expected to operate (in hot sunlight). 15. Photovoltaic modules shall be interconnected using cable assemblies. The pigtails shall be quick- ' connect electrical wiring connections rated for the application and requiring a tool to separate. 16. All circuits connected to more than one source shall have overcurrent devices located so as to provide overcurrent protection from all sources per NEC Article 690-9 (a). 17. Each array may have at least one DC Splice Box, providing a watertight entry to the conduit leading to I the combiner box. 18. Each set of arrays shall have a DC combiner box, containing fuses and a bus to combine the outputs of the strings as indicated on the drawings. 19. Shoring: The Contractor shall provide all permanent and temporary shoring, anchoring and bracing required by the nature of this work in order to make all parts absolutely stable and rigid, even when such shoring, anchoring and bracing are not explicitly called for. 20. Support all work adequately and per code.All equipment shall be securely attached to the structure in I an approved manner. 21. Cut no structural members. If equipment cannot be properly concealed, notify Architect. Any patching and cutting done as a result of error or neglect on the part of the Contractor shall be done at the ex- pense of the Contractor. 22. Contractor shall keep work areas in a clean and safe condition. Remove all equipment, tools, vehi- cles, rubbish, waste and debris from the site upon completion of the job. The Contractor shall pay all fees for recycling and disposal. I 1 SECTION DURHAM060617 ITY INTERCONNECTION EDUCATION CENTER Page26 8 31 of 00 9 PHOTOVOLTAIC SYSTEM 3.2 UTIL A. The PV generation system shall not be interconnected with the Utility's distribution facilities until written authorization from the Utility Company has been obtained. Unauthorized interconnections may result in injury to persons and damage to equipment or property for which the installing contractor will be liable. 3.3 ELECTRICAL CONNECTIONS A. Make splices,taps, and terminations on numbered terminal strips in junction, pull and outlet boxes, terminal cabinets, and equipment enclosures. 3.4 IDENTIFICATION 111A. Comply with Division 26 Section "Electrical Identification." B. Color-code wire and apply wire and cable marking tape to designate wires and cables so they are uniformly identified and coordinated with wiring diagrams throughout the system. C. Provide labels per NEC Article 690-17 and Article 690-53. The AC interconnection panel/switchboard and all breakers contained in it and the PV system disconnects shall be clearly labeled. D. Provide permanent directories at service equipment per NEC Article 705-10 and as shown on the drawings. E. Provide permanent plaques at utility meter as indicated on the drawings. 3.5 FIELD QUALITY CONTROL A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test, and adjust field-assembled components and equipment installation, including connections, and to assist in programming and field testing. Report results in writing. B. The Contractor shall notify the Architect a minimum of 5 days before closing in of to-be-concealed work so that an Owner's representative may inspect the work. C. The Contractor shall notify the Architect a minimum of 5 days before final testing. D. All testing to be done on "no-cloud"days to avoid system fluctuation by passing clouds. E. Perform the following field adjustments, tests, inspections, Commissioning, and prepare test reports: 1. Before starting or operating the system Contractor shall a. Check continuity of all conductors and grounding conductors to verify that there are no faults and that all equipment has been properly installed. b. Check factory instructions to see that installations have been made accordingly. c. Check equipment for any damage that may have occurred during shipment, after delivery, or during installation. Repair damaged equipment or replace with new equipment of like kind. d. Measure Open-Circuit Voltage of each string at the DC Combiner Box. e. Measure Closed-Circuit Current of each string at the DC Combiner Box. 2. Before starting or operating the system Contractor shall obtain a final inspection approval from the Building Department and a final inspection approval from the Utility. Contractor shall be present on site for both of these inspections. 3. Once Building Department and the Utilities final approvals have been received, Contractor shall test all equipment to ensure specified capacity and performance of the system. The Contractor shall notify the Architect a minimum of 5 days prior to the test so that an Owner's representative may witness the test. 4. PV Module Test: During the daytime while the sun is shining on the PV array between the 11:00 am and 1:00 pm, measure the output current of each sub-array. 5. Perform startup checks for all equipment per manufacturer's written instructions. a. Coordinate with the Owner's personnel to confirm function of monitoring equipment. 6. Contractor shall make final adjustments to all inverters and monitoring equipment in accordance with the specified system operation and the manufacturer's recommendations so that they will be placed in an acceptable operating condition. Adjustable parameters shall be set so that the PV system will pro- duce the maximum possible amount of energy on an annual basis 7. Verify that controls are properly labeled and interconnecting wires and terminals are identified. F. Remove and replace malfunctioning units and retest as specified above. G. Test Reports to be included in O&M Manual: Prepare a written report to record the following: 1. Open-Circuit Voltage readings for each string from the pre-startup test. 1 DURHAM EDUCATION CENTER SECTION 26 31 00 060617 ' PHOTOVOLTAIC SYSTEM Page 9 of 9 2. Short-Circuit Current readings for each string from the pre-startup test. 3. Output current readings from PV Module Test. 4. Date and time of each test. 3.6 DEMONSTRATION A. Provide a complete walk-through and training service for the PV system 1. Train Owners's maintenance personnel on procedures and schedules for starting and stopping, trou- bleshooting, servicing, and maintaining equipment. B. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain Photovoltaic system components. Refer to Division 01 Section "Project Record Documents and Owner Instruction." END OF SECTION i 1 t 1 1 I 1 I 1 I 1 1 DURHAM EDUCATION CENTER 082217 SECTION 26 51 00 INTERIOR LIGHITNG Page 1 of 6 ' PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Interior lighting luminaires, LED lamps, and drivers. 2. Emergency lighting units. 3. Exit signs. 4. Lighting luminaire supports. B. All luminaires shall be procured through a distributor located within 200 miles of the project site with a valid business license in the state the project is located. C. Upon request of the architect, engineer or owner, provide all back-up pricing in a unit cost breakdown per luminaire. Back-up pricing shall include distributor net pricing, contractor net pricing, final owner pricing and all mark-ups and discounts (lot price or all-or-none) associated with the luminaires. D. Lighting related change orders shall include all back-up pricing noted above for review by the engineer and lighting designer 1.3 DEFINITIONS A. CCT: Correlated color temperature. B. CRI: Color-rendering index. C. LER: Luminaire efficacy rating. D. Lumen: Measured output of lamp and luminaire, or both. E. Luminaire: Complete lighting luminaire, including driver housing if provided. 1.4 SUBMITTALS A. Product Data: For each type of lighting luminaire, arranged in order of fixture designation. Include data on features, accessories, finishes, and the following: 1. Physical description of lighting luminaire including dimensions. 2. Emergency lighting units including battery and charger. 3. Driver. 4. Energy-efficiency data. 5. Life, output, and energy-efficiency data for LED lamps. 6. Photometric data, in IESNA format, based on laboratory tests of each lighting luminaire type, outfitted with lamps, ballasts, and accessories identical to those indicated for the lighting luminaire as applied in this Project. a. For indicated fixtures, photometric data shall be certified by a qualified independent testing agency. Photometric data for remaining fixtures shall be certified by the manufacturer. b. Photometric data shall be certified by a manufacturer's laboratory with a current accreditation under the National Voluntary Laboratory Accreditation Program (NVLAP)for Energy Efficient Lighting Products. B. Shop Drawings: Show details of nonstandard or custom lighting luminaires. Indicate dimensions, weights, methods of field assembly, components, features, and accessories. 1. Wiring Diagrams: Power and control wiring. C. Coordination Drawings: Reflected ceiling plan(s)and other details, drawn to scale, on which the following items are shown and coordinated with each other, based on input from installers of the items involved: 1. Lighting luminaires. 2. Suspended ceiling components. 3. Structural members to which suspension systems for lighting luminaires will be attached. 4. Other items in finished ceiling including the following: a. Air outlets and inlets. b. Speakers. I SECTIONPage 26 512 0 DURHAM EDUCATION CENTER of 0 0 082217 INTERIOR LIGHITNG I c. Sprinklers. d. Smoke and fire detectors. e. Occupancy sensors. f. Access panels. g. HVAC equipment(ductwork, equipment, supports, etc.) h. Plumbing equipment(piping, supports, etc.) 111 i. Electrical equipment(conduit, boxes, etc.) D. Product Certificates: For each type of ballast for bi-level and dimmer-controlled fixtures, signed by product manufacturer. E. Qualification Data: For agencies providing photometric data for lighting luminaires. F. Field quality-control test reports. G. Operation and Maintenance Data: For lighting equipment and fixtures to include in emergency, operation, and maintenance manuals. H. Warranties: Special warranties specified in this Section. 1.5 QUALITY ASSURANCE A. Luminaire Photometric Volunteer Qualifications: manufacturers' laboratories that are aceditd under he National aboratoAccreditation Program for Energy Efficient 111Lighting Products. B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. C. Comply with NFPA 70. 1.6 COORDINATION A. Coordinate layout and installation of lighting luminaires and suspension system with other construction that penetrates ceilings or is supported by them, including HVAC equipment,fire-suppression system, and partition assemblies. 1.7 WARRANTY A. Special Warranty for Emergency Lighting Batteries: Manufacturer's standard form in which manufacturer of battery-powered emergency lighting unit agrees to repair or replace components of rechargeable batteries that fail in materials or workmanship within specified warranty period. 1. Warranty Period for ate of Substantial Completion.Emergency Full warranty shall apply forBallast afirst nd Byear, and prorated es: Seven ewarranty ars from for the remaining six years. B. Special Warranty for Ballasts: Manufacturer's standard form in which ballast manufacturer agrees to repair or replace ballasts that fail in materials or workmanship within specified warranty period. 1. Warranty Period for Electronic Ballasts: Five years from date of Substantial Completion. PART 2- PRO DUCTS I 2.1 MANUFACTURERS A. Products: Subject to compliance with requirements, provide products as specified by the architect and111 interior decorator. 2.2 GENERAL REQUIREMENTS FOR LIGHTING LUMINAIRES AND COMPONENTS A. Recessed Fixtures: Comply with NEMA LE 4 for ceiling compatibility for recessed fixtures. B. Fluorescent Fixtures: Comply with UL 1598. Where LER is specified, test according to NEMA LE 5 and NEMA LE 5A as applicable. C. Metal Parts: Free of burrs and sharp corners and edges. 111 D. Sheet Metal Components: Steel unless otherwise indicated. Form and support to prevent warping and sagging. E. Doors, Frames, and Other Internal Access: Smooth operating,free of light leakage under operating conditions, and designed to permit re-lamping without use of tools. Designed to prevent doors,frames, I IDURHAM EDUCATION CENTER SECTION 26 51 00 082217 fINTERIOR LIGHITNG Page 3 of 6 lenses, diffusers, and other components from falling accidentally during re-lamping and when secured in ioperating position. F. Factory-Applied Labels: Comply with UL 1598. Include recommended lamps and ballasts. Labels shall be located where they will be readily visible to service personnel, but not seen from normal viewing angles when lamps are in place. 1. Label shall include the following LED lamp and driver characteristics: a. "USE ONLY"and include specific lamp type. b. CCT and CRI for all luminaires. I2.3 EXIT SIGNS A. Description: Comply with UL 924; for sign colors, visibility, luminance, and lettering size, comply with authorities having jurisdiction. IB. Internally Lighted Signs: 1. Lamps for AC Operation: LEDs, 70,000 hours minimum rated lamp life. 2.4 EMERGENCY LIGHTING UNITS A. General Requirements for Emergency Lighting Units: Self-contained units complying with UL 924. 1. Battery: Sealed, maintenance-free, lead-acid type. 2. Charger: Fully automatic, solid-state type with sealed transfer relay. 3. Operation: Relay automatically turns lamp on when power-supply circuit voltage drops to 80 percent of nominal voltage or below. Lamp automatically disconnects from battery when voltage approaches deep-discharge level. When normal voltage is restored, relay disconnects lamps from battery, and I battery is automatically recharged and floated on charger. 4. Test Push Button: Push-to-test type, in unit housing, simulates loss of normal power and demonstrates unit operability. 5. LED Indicator Light: Indicates normal power on. Normal glow indicates trickle charge; bright glow iindicates charging at end of discharge cycle. 6. Wire Guard: Heavy-chrome-plated wire guard protects lamp heads or fixtures. 7. Integral Time-Delay Relay: Holds unit on for fixed interval of 15 minutes when power is restored after an outage. 8. Integral Self-Test: Factory-installed electronic device automatically initiates code-required test of unit emergency operation at required intervals. Test failure is annunciated by an integral audible alarm and a flashing red LED. I2.5 SOLID STATE LIGHTING/LIGHT EMITTING DIODE (LED) LAMPS AND LUMINAIRES: A. General: 1. Luminaire manufacturer shall have a minimum of five (5) years experience in the manufacture and design of LED products and systems and no less than one hundred (100) North American installations. 2. Unless otherwise specified, all LED luminaires and power/data supplies shall be provided by a single I manufacturer to ensure compatibility. 3. All components, peripheral devices and control software are to be provided by and shall be the responsibility of a single entity. All components shall perform successfully as a complete system. 4. Provide submittals as described in Part 1.04 above. i 5. Provide two (2)samples of each separate manufacturer and type of LED luminaire. Follow procedure for submitting samples as described in Part 1.04 above. 6. Include all components necessary for a complete installation. Provide all power supplies, Isynchronizers, data cables, and data terminators for a complete working system. 7. All LED sources used in the LED luminaire shall be of proven quality from established and reputable LED manufacturers and shall have been fabricated after 2007. Acceptable LED lamp manufacturers unless otherwise noted are: I a. Cree, Inc. b. Philips Lighting c. Nichia Corporation d. Norlux e. Opto Technology, Inc. f. Osram Optronic Semiconductors I DURHAM EDUCATION CENTER SECTION 26 51 00 111 082217 Page 5 of 0 I INTERIOR LIGHITNG B. Replacement and Spares: 1. Manufacturer shall provide written guarantee of the following: a. Manufacturer will keep record of original bin for each LED module and have replacement modules from the same bin available for three (3)years after date of installation. b. Manufacturer will keep an inventory of replacement parts (source assembly, power and control components). c. Manufacturer's LED system will not become obsolete for ten (10)years: Manufacturer will provide exact replacement parts, or provide upgraded parts that are designed to fit into the original luminaire and provide equivalent distribution and lumen output to the original, without any negative consequences. 2. All parts of system shall be replaceable in field. Manufacturer shall provide written guarantee of the following: a. Manufacturer has in place a written recycling and re-use program, and will accept returned111 product and/or components for recycling or re-use. b. Manufacturer will properly dispose of non-recyclable components that are deemed harmful to the environment. 3. System shall carry a full warranty for five (5)years. Manufacturer shall be responsible for cost of labor not to exceed $50 per individual part, and cost of shipping, to replace any component of the system that fails within 2 years of installation. C. Products and Components—Performance 1. LED luminaires and components shall be UL listed or UL classified. 2. LED luminaires and components shall be CE certified. 3. LED luminaires and components shall be PSE marked. 4. All LED luminaires shall be subjected to the following JEDEC Reliability Tests for Lead-free Semiconductors: HTOL, RTOL, LTOL, PTMCL,TMSK, Mechanical Shock,Variable Vibration Frequency, SHR, Autoclave. 5. To ensure luminaire quality, luminaire shall have been tested under accelerated life test conI conditions including an operating temperature span of 360 degrees F, and cyclic loading up to 60G. 6. All products included in system shall use Mil-Std 810F, Random Vibration 7.698g as a minimum standard. In installations subject to vibration, luminaire shall be installed with vibration isolation I hardware to sufficiently dampen vibrations. 7. All LED components shall be mercury and lead-free. 8. All manufacturing processes and materials shall conform to the requirements of the European Union's Restriction on the Use of Hazardous Substances in Electrical and Electronics Equipment(RoHS) Directive, 2002/95/EC. 9. LEDs shall comply with ANSI/NEMA/ANSLG C78.377-2008—Specifications for the Chromaticity of Solid State Lighting Products. Color shall remain stable throughout the life of the lamp. Color shall match approved sample. 10. LEDs shall comply with IESNA LM-80—Standards for Lumen Maintenance of LED 11. Lighting Products 12. White LEDs shall have a rated source life of 50,000 hours under normal operating conditions. I RGB LEDs shall have a rated source life of 100,000 hours. LED"rated source life" is defined as the time when a minimum of 70% of initial lumen output remains. 13. Luminaire assembly shall include a method of dissipating heat so as to not degrade life of source, electronic equipment, or lenses. LED luminaire housing shall be designed to transfer heat from the LED board to the outside environment. Luminaire housing shall have no negative impact on life of components. 14. Manufacturer shall supply in writing a range of permissible operating temperatures in which system will perform optimally. 15. High power LED luminaires shall be thermally protected using one or more of the following thermal management techniques: metal core board, gap pad, and/or internal monitoring firmware 16. LEDs shall be adequately protected from moisture or dust in interior applications. 17. For wet and damp use, LED-based luminaires itself shall be sealed, rated, and tested for appropriate environmental conditions, not accomplished by using an additional housing or enclosure. Such protection shall have no negative impact on rated life of source or components, or if so, such reductions shall be explicitly brought to the attention of the designer. IIII DURHAM EDUCATION CENTER 082217 SECTION 26 51 00 IINTERIOR LIGHITNG Page 5 of 6 18. All hardwired connections to LED luminaires shall be reverse polarity protected and provide high voltage protection in the event connections are reversed or shorted during the installation process. 19. The LED luminaire shall be operated at constant and carefully regulated current levels. LEDs shall not be overdriven beyond their specified nominal voltage and current. 20. RGB LED luminaires shall utilize an equal combination of high brightness red, blue and green LEDs, unless otherwise noted, to provide up to 16.7 million additive RGB colors and shall be capable of at least 8-bit control. 21. Manufacturer shall be able to provide supporting documentation of the product meeting third party U regulatory compliance. 22. Manufacturer shall ensure that products undergo and successfully meet appropriate design and manufacturability testing including Design FMEA, Process FMEA, Environmental Engineering Considerations and Laboratory Tests, IEC standards and UL/CE testing. 23. All LED luminaires (100% of each lot)shall undergo a minimum twenty-four(24) hour burn-in during manufacturing, prior to shipping. 24. Manufacturer shall provide Luminaire Efficacy(Im/W), total luminous flux (lumens), luminous intensity (candelas) chromaticity coordinates, CCT and CRI. optical performance, polar diagrams, and relevant luminance and illuminance photometric data. Provide data in IES file format in accordance with IES LM-79-2008, based on test results from an independent Nationally Recognized Testing Laboratory. 25. Power/data supply shall have the following: a. Supply outputs shall have current limiting protection. b. Supply shall provide miswiring protection. c. Supply shall have power factor correction. d. Supply shall provide connections that are conduit-ready or clamp-style connections in the case of low-voltage wiring. e. Supply shall come with a housing that meets a minimum IP20 rating for dry location installation unless located in a damp or wet location. f. Supply shall be UL listed for Class 1 or Class 2 wiring. 2.6 LIGHTING LUMINAIRE SUPPORT COMPONENTS A. Comply with Division 26 Section "Hangers and Supports for Electrical Systems"for channel-and angle-iron supports and nonmetallic channel and angle supports. B. Single-Stem Hangers: 1/2-inch steel tubing with swivel ball fittings and ceiling canopy. Finish same as fixture. C. Twin-Stem Hangers: Two, 1/2-inch steel tubes with single canopy designed to mount a single fixture. Finish same as fixture. D. Wires: ASTM A 641/A 641M, Class 3, soft temper, zinc-coated steel, 12 gage. E. Wires for Humid Spaces: ASTM A 580/A 580M, Composition 302 or 304, annealed stainless steel, 12 gage. F. Rod Hangers: 3/16-inch minimum diameter, cadmium-plated, threaded steel rod. 111 G. Hook Hangers: Integrated assembly matched to fixture and line voltage and equipped with threaded attachment, cord, and locking-type plug. PART 3- EXECUTION 3.1 INSTALLATION A. Lighting luminaires: 1. Set level, plumb, and square with ceilings and walls unless otherwise indicated. 2. Install lamps in each luminaire. B. Remote Mounting of Ballasts: Distance between the ballast and fixture shall not exceed that recommended by ballast manufacturer. Verify, with ballast manufacturers, maximum distance between ballast and luminaire. C. Lay-in Ceiling Lighting Luminaires Supports: Use grid as a support element. 1. Install ceiling support system rods or wires, independent of the ceiling suspension devices, for each fixture. Locate not more than 6 inches from lighting luminaire corners. 1 DURHAM EDUCATION CENTER SECTION 26 51 00 5 of 0 082217 INTERIOR LIGHITNG 2. Support Clips: Fasten to lighting luminaires and to ceiling grid members at or near each fixture corner with clips that are UL listed for the application. 3. Fixtures of Sizes Less Than Ceiling Grid: Install as indicated on reflected ceiling plans or center in acoustical panel, and support fixtures independently with at least two 3/4-inch metal channels spanning and secured to ceiling tees. 4. Install at least one independent structure safety facto�of n i3 hting luminaire. Wire or rod shall have break n 9 strength of he weight of fixture D. Suspended Lighting Luminaire Support: 1. Pendants and Rods: Where longer than 48 inches, brace to limit swinging. 2. Stem-Mounted, Single-Unit Fixtures: Suspend with twin-stem hangers. 3. Continuous Rows: Use tubing or stem for wiring at one point and tubing or rod for suspension for each unit length of fixture chassis, including one at each end. 4. Do not use grid as support for pendant luminaires. Connect support wires or rods to building structure. 3.2 IDENTIFICATION A. Install labels with panel and circuit numbers on concealed junction and outlet boxes. Comply with requirements for identification specified in Division 26 Section "Identification for Electrical Systems." 3.3 FIELD QUALITY CONTROL A. Test for Emergency Lighting: Interrupt power supply to demonstrate proper operation. Verify transfer from normal power to battery and retransfer to normal. B. Prepare a wradjustment arreeport of tests,made'to lighting system, retest to demonstrate complobservations, and verifications iance with standang and rds. results. If adjustments 3.4 STARTUP SERVICE A. Burn-in all lamps that require specific aging period to operate properly, prior to occupancy by Owner. Burn- in fluorescent and compact fluorescent lamps intended to be dimmed,for at least 100 hours at full voltage. END OF SECTION r I I I t I t I t 1 DURHAM EDUCATION CENTER 082217 SECTION 26 56 00 1 EXTERIOR LIGHTING Page 1 of 8 1 PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and ' Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1 1. Exterior luminaires with LED lamps and drivers. 2. Luminaire-mounted photoelectric relays. 3. Poles and accessories. I4. Luminaire lowering devices. B. Related Sections: 1. Division 26 Section "Interior Lighting"for exterior luminaires normally mounted on exterior surfaces of buildings. C. All luminaires shall be procured through a distributor located within 200 miles of the project site with a valid business license in the state the project is located. 111 D. Upon request of the architect, engineer or owner, provide all back-up pricing in a unit cost breakdown per luminaire. Back-up pricing shall include distributor net pricing, contractor net pricing, final owner pricing and all mark-ups and discounts (lot price or all-or-none)associated with the luminaires. IE. Lighting related change orders shall include all back-up pricing noted above for review by the engineer and lighting designer 1.3 DEFINITIONS 1 A. CCT: Correlated color temperature. B. CRI: Color-rendering index. C. LER: Luminaire efficacy rating. 111 D. Luminaire: Complete lighting luminaire, including ballast housing if provided. E. Pole: Luminaire support structure, including tower used for large area illumination. IF. Standard: Same definition as "Pole"above. 1.4 STRUCTURAL ANALYSIS CRITERIA FOR POLE SELECTION A. Dead Load: Weight of luminaire and its horizontal and vertical supports, lowering devices, and supporting I structure, applied as stated in AASHTO LTS-4-M. B. Live Load: Single load of 500 lbf, distributed as stated in AASHTO LTS-4-M. C. Ice Load: Load of 3 lbf/sq. ft., applied as stated in AASHTO LTS-4-M Ice Load Map. 1 D. Wind Load: Pressure of wind on pole and luminaire and banners and banner arms, calculated and applied as stated in AASHTO LTS-4-M. 1.5 SUBMITTALS 1 A. Product Data: For each luminaire, pole, and support component, arranged in order of lighting unit designation. Include data on features, accessories, finishes, and the following: 1. Physical description of luminaire, including materials, dimensions, effective projected area, and 1verification of indicated parameters. 2. Details of attaching luminaires and accessories. 3. Details of installation and construction. 4. Luminaire materials. 1 5. Photometric data based on laboratory tests of each luminaire type, complete with indicated lamps, ballasts, and accessories. 6. Ballasts, including energy-efficiency data. 7. Lamps, including life, output, CCT, CRI, lumens, and energy-efficiency data. 8. Materials, dimensions, and finishes of poles. I DURHAM EDUCATION CENTER SECTION 26 56 00Pa26 5 of 8 082217 EXTERIOR LIGHTING 9. Means of attaching luminaires to supports, and indication that attachment is suitable for components involved. 10. Manufactured pole foundations. B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. 1. Detail equipment assemblies and indicate dimensions,weights, loads, required clearances, method of field assembly, components, and location and size of each field connection. 2. Anchor-bolt templates keyed to specific poles and certified by manufacturer. 3. Design calculations, certified by a qualified professional engineer, indicating strength of screw foundations and soil conditions on which they are based. 4. Wiring Diagrams: For power, signal, and control wiring. C. Warranty: Sample of special warranty. D. Operation and Maintenance Data: For luminaires and poles to include in emergency, operation, and maintenance manuals. 1.6 QUALITY ASSURANCE A. Luminaire Qualifications: laboratories that are accredited under the National Volunteer Laboratory Accreditation Program for Energy Efficient Lighting Products. B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. C. Comply with IEEE C2, "National Electrical Safety Code." D. Comply with NFPA 70. PART 2- PRODUCTS 2.1 MANUFACTURERS A. Products: Subject to compliance with requirements, provide products as specified by the architect and interior decorator. 2.2 GENERAL REQUIREMENTS FOR LUMINAIRES A. - Luminaires shall comply with UL 1598 and be listed and labeled for installation in wet locations by an NRTL acceptable to authorities having jurisdiction. 1. LER Tests Fluorescent Fixtures: Where LER is specified,test according to NEMA LE 5 and NEMA LE 5A as applicable. B. Lateral Light Distribution Patterns: Comply with IESNA RP-8 for parameters of lateral light distribution patterns indicated for luminaires. C. Metal Parts: Free of burrs and sharp corners and edges. D. Sheet Metal Components: Corrosion-resistant aluminum unless otherwise indicated. Form and support to prevent warping and sagging. E. Housings: Rigidly formed,weather-and light-tight enclosures that will not warp, sag, or deform in use. Provide filter/breather for enclosed luminaires. F. Doors, Frames, and Other Internal Access: Smooth operating, free of light leakage under operating conditions, and designed to permit relamping without use of tools. Designed to prevent doors,frames, lenses, diffusers, and other components from falling accidentally during relamping and when secured in operating position. Doors shall be removable for cleaning or replacing lenses. Designed to disconnect ballast when door opens. G. Exposed Hardware Material: Stainless steel. H. Plastic Parts: High resistance to yellowing and other changes due to aging, exposure to heat, and UV radiation. I. Light Shields: Metal baffles, factory installed and field adjustable, arranged to block light distribution to indicated portion of normally illuminated area or field. J. Reflecting surfaces shall have minimum reflectance as follows unless otherwise indicated: 1. White Surfaces: 85 percent. 1 DURHAM EDUCATION CENTER 082217 SECTION 26 56 00 IEXTERIOR LIGHTING Page 3 of 8 2. Specular Surfaces: 83 percent. I3. Diffusing Specular Surfaces: 75 percent. K. Lenses and Refractors Gaskets: Use heat-and aging-resistant resilient gaskets to seal and cushion lenses and refractors in luminaire doors. I L. Luminaire Finish: Manufacturer's standard paint applied to factory-assembled and -tested luminaire before shipping. Where indicated, match finish process and color of pole or support materials. M. Factory-Applied Finish for Steel Luminaires: Comply with NAAMM's "Metal Finishes Manual for I Architectural and Metal Products"for recommendations for applying and designating finishes. 1. Surface Preparation: Clean surfaces to comply with SSPC-SP 1, "Solvent Cleaning,"to remove dirt, oil, grease, and other contaminants that could impair paint bond. Grind welds and polish surfaces to a I smooth, even finish. Remove mill scale and rust, if present, from uncoated steel, complying with SSPC-SP 5/NACE No. 1, "White Metal Blast Cleaning,"or SSPC-SP 8, "Pickling." 2. Exterior Surfaces: Manufacturer's standard finish consisting of one or more coats of primer and two finish coats of high-gloss, high-build polyurethane enamel. Ia. Color: As selected by Architect from manufacturer's full range. N. Factory-Applied Finish for Aluminum Luminaires: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products"for recommendations for applying and designating finishes. I1. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes. 2. Natural Satin Finish: Provide fine, directional, medium satin polish (AA-M32); buff complying with AA- M20; and seal aluminum surfaces with clear, hard-coat wax. I O. Factory-Applied Labels: Comply with UL 1598. Include recommended lamps and ballasts. Labels located where they will be readily visible to service personnel, but not seen from normal viewing angles be when lamps are in place. I 1. Label shall include the following lamp and ballast characteristics: a. "USES ONLY"and include specific lamp type. b. Lamp diameter code (T-4, T-5, T-8, T-12), tube configuration (twin, quad, triple), base type, and nominal wattage for fluorescent and compact fluorescent luminaires. c. Lamp type, wattage, bulb type (ED17, BD56, etc.)and coating (clear or coated)for HID luminaires. d. Start type (preheat, rapid start, instant start)for fluorescent and compact fluorescent luminaires. 1 e. ANSI ballast type (M98, M57, etc.)for HID luminaires. f. CCT and CRI for all luminaires. 2.3 LUMINAIRE-MOUNTED PHOTOELECTRIC RELAYS IA. Comply with UL 773 or UL 773A. B. Contact Relays: Factory mounted, single throw, designed to fail in the on position, and factory set to turn light unit on at 1.5 to 3 fc(16 to 32 lx)and off at 4.5 to 10 fc (48 to 108 lx)with 15-second minimum time I delay. Relay shall have directional lens in front of photocell to prevent artificial light sources from causing false turnoff. 1. Relay with locking-type receptacle shall comply with ANSI C136.10. 2. Adjustable window slide for adjusting on-off set points. 2.4 GENERAL REQUIREMENTS FOR POLES AND SUPPORT COMPONENTS A. Structural Characteristics: Comply with AASHTO LTS-4-M. I1. Wind-Load Strength of Poles: Adequate at indicated heights above grade without failure, permanent deflection, or whipping in steady winds of speed indicated in "Structural Analysis Criteria for Pole Selection"Article. 2. Strength Analysis: For each pole, multiply the actual equivalent projected area of luminaires and I brackets by a factor of 1.1 to obtain the equivalent projected area to be used in pole selection strength analysis. B. Luminaire Attachment Provisions: Comply with luminaire manufacturers'mounting requirements. Use I stainless-steel fasteners and mounting bolts unless otherwise indicated. I DURHAM EDUCATION CENTER SECTION 26 56 00Page 4 of 8 082217 EXTERIOR LIGHTING , C. Mountings, Fasteners, and Appurtenances: Corrosion-resistant items compatible with support components. 1. Materials: Shall not cause galvanic action at contact points. 2. Anchor Bolts, Leveling Nuts, Bolt Caps, and Washers: Hot-dip galvanized after fabrication unless otherwise indicated. 111 3. Anchor-Bolt Template: Plywood or steel. 130 mm),with cover D. Handhole: Oval-shape , with minimumnclear opening of 2-1/2 by 5 inches (65 by secured by stainless-steelp E. Concrete Pole Foundations: aae sln epified in lace, with Divasion 03 Section "Cast-in-Placenchor bolts to match P Concrete."e-base Concrete, reinforcement, and formworkP F. opingtwith Screw Foundations:and hot-dip galvan zed acd by cle manufacturer,with structural ording g to ASTM A 123/A 123M; andwithcomplyingtop- with ASTM A 36/A 36M111 plate and mounting bolts to match pole base flange and strength required to support pole, luminaire, and accessories. G. Breakaway Supports: Frangible breakaway supports, tested by an independent testing agency acceptable to authorities having jurisdiction, according to AASHTO TS-4-M. 2.5 SOLID STATE LIGHTING/LIGHT EMITTING DIODE (LED)LAMPS AND LUMINAIRES: A. General: erience in the manufacture and 1. Luminaire manufacturer shall have a minimum of five (5)years experience design of LED products and systems and no less than one hundred (100) North American installations. 2. Unless otherwise specified, all LED luminaires and power/data supplies shall be provided by a single manufacturer to ensure compatibility. 3. All components, peripheral it. ces and control All components shall l perform successfullyare are to be as a complete system. ed by and shall be the responsibility of a single entity. above. 4. Provide submittals as described in Part 1.04 5. Provide two (2) samples of each s an Part 1 manufacturer abovand type of LED luminaire. Follow procedure for submitting samples as described 6. Include all components necessary for a complete installation. Provide all power supplies, synchronizers, data cables, and data terminators for a complete working system. e 7. All LED sources used in the LED luminaire been fabricated after 2007. Acceptable LED be of proven uality from llamp manufactu shed and reputabel s LED manufacturers and shall have unless otherwise noted are: a. Cree, Inc. b. Philips Lighting c. Nichia Corporation d. Norlux e. Opto Technology, Inc. 1. Osram Optronic Semiconductors B. Replacement and Spares: 1. Manufacturer shall provide written guarantee of the following: a. Manufacturer will keep record of original bin for each LED module and have replacement modules from the same bin available for three (3)years after date of installation. b. Manufacturer will keep an inventory of replacement parts (source assembly, power and control components). c. Manufacturer's LED systemwill becomefor (10)years: Manufacturer provide exact replacement parts, oide upgraded parts that are designed to fit into the original luminaire and provide equivalent distribution and lumen output to the original, without any negative consequences. 2. All parts of system shall replaceable in field. Manufacturer shall provide written guarantee of the following: a. Manufacturer has in place a written recycling and re-use program, and will accept returned product and/or components for recycling or re-use. b. Manufacturer will properly dispose of non-recyclable components that are deemed harmful to the environment. DURHAM EDUCATION CENTER 082217 SECTION 26 56 00 EXTERIOR LIGHTING Page 5 of 8 3. System shall carry a full warranty for five (5)years. Manufacturer shall be responsible for cost of labor not to exceed $50 per individual part, and cost of shipping, to replace any component of the system that fails within 2 years of installation. C. Products and Components—Performance 1. LED luminaires and components shall be UL listed or UL classified. 2. LED luminaires and components shall be CE certified. 3. LED luminaires and components shall be PSE marked. 4. All LED luminaires shall be subjected to the following JEDEC Reliability Tests for Lead-free Semiconductors: HTOL, RTOL, LTOL, PTMCL, TMSK, Mechanical Shock, Variable Vibration Frequency, SHR, Autoclave. 5. To ensure luminaire quality, luminaire shall have been tested under accelerated life test conditions including an operating temperature span of 360 degrees F, and cyclic loading up to 60G. 6. All products included in system shall use Mil-Std 810F, Random Vibration 7.698g as a minimum standard. In installations subject to vibration, luminaire shall be installed with vibration isolation hardware to sufficiently dampen vibrations. 7. All LED components shall be mercury and lead-free. 8. All manufacturing processes and materials shall conform to the requirements of the European Union's Restriction on the Use of Hazardous Substances in Electrical and Electronics Equipment(RoHS) Directive, 2002/95/EC. 9. LEDs shall comply with ANSI/NEMA/ANSLG C78.377-2008—Specifications for the Chromaticity of Solid State Lighting Products. Color shall remain stable throughout the life of the lamp. Color shall match approved sample. 10. LEDs shall comply with IESNA LM-80—Standards for Lumen Maintenance of LED Lighting Products. 11. White LEDs shall have a rated source life of 50,000 hours under normal operating conditions. RGB LEDs shall have a rated source life of 100,000 hours. LED "rated source life"is defined as the time when a minimum of 70% of initial lumen output remains. 12. Luminaire assembly shall include a method of dissipating heat so as to not degrade life of source, electronic equipment, or lenses. LED luminaire housing shall be designed to transfer heat from the LED board to the outside environment. Luminaire housing shall have no negative impact on life of components. 13. Manufacturer shall supply in writing a range of permissible operating temperatures in which system will perform optimally. 14. High power LED luminaires shall be thermally protected using one or more of the following thermal management techniques: metal core board, gap pad, and/or internal monitoring firmware 15. LEDs shall be adequately protected from moisture or dust in interior applications. 16. For wet and damp use, LED-based luminaires itself shall be sealed, rated, and tested for appropriate environmental conditions, not accomplished by using an additional housing or enclosure. Such protection shall have no negative impact on rated life of source or components, or if so, such reductions shall be explicitly brought to the attention of the designer. 17. All hardwired connections to LED luminaires shall be reverse polarity and provide high voltage protection in the event connections are reversed or shorted during theinstallation pr cess. 18. The LED luminaire shall be operated at constant and carefully regulated current levels. LEDs shall not be overdriven beyond their specified nominal voltage and current. 19. RGB LED luminaires shall utilize an equal combination of high brightness red, blue and green LEDs, unless otherwise noted, to provide up to 16.7 million additive RGB colors and shall be capable of at least 8-bit control. 20. Manufacturer shall be able to provide supporting documentation of the product meeting third party regulatory compliance. 21. Manufacturer shall ensure that products undergo and successfully meet appropriate design and manufacturability testing including Design FMEA, Process FMEA, Environmental Engineering Considerations and Laboratory Tests, IEC standards and UL/CE testing. 22. All LED luminaires (100% of each lot)shall undergo a minimum twenty-four(24) hour burn-in during manufacturing, prior to shipping. 23. Manufacturer shall provide Luminaire Efficacy(Im/W), total luminous flux (lumens), luminous intensity (candelas)chromaticity coordinates, CCT and CRI, optical performance, polar diagrams, and relevant luminance and illuminance photometric data. Provide data in IES file format in accordance with IES LM-79-2008, based on test results from an independent Nationally Recognized Testing Laboratory. i DURHAM EDUCATION CENTER SECTION 26 56 00 'Pa26 5 of 8 082217 EXTERIOR LIGHTING I 24. Power/data supply shall have the following: a. Supply outputs shall have current limiting protection. I b. Supply shall provide miswiring protection. c. Supply shall have power factor correction. d. Supply shall provide connections that are conduit-ready or clamp-style connections in the case of low-voltage wiring. ' e, Supply shall come with a housing that meets a minimum IP20 rating for dry location installation unless located in a damp or wet location. f. Supply shall be UL listed for Class 1 or Class 2 wiring. I 2.6 STEEL POLES A. Poles: Comply with ASTMto 40 feet(12 A 500, rade B, carbon steel with a minimum m) in height with access handholein pole wall. ll00 psig (317 MPa); one-piece construction p ' 1. Shape: Verify with city requirements. 2. Mounting Provisions: Butt flange for bolted mounting on foundation or breakaway support. B. Brackets for Luminaires: Detachable, cantilever, without underbrace. I1. Adapter fitting welded to pole, allowing the bracket to be bolted to the pole mounted adapter, then bolted together with stainless-steel bolts. 2. Cross Section: Tapered oval, with straight tubular end section to accommodate luminaire. 3. Match pole material and finish. C. Grounding and Bonding Lugs: Welded 1/2-inch (13-mm)threaded lug, complying with requirements in Division 26 Section "Grounding and Bonding for Electrical Systems," listed for attaching grounding and bonding conductors of type and size listed in that Section, and accessible through handhole. D. Prime-Coat Finish: Manufacturer's standard prime-coat finish ready for field painting. I E. Galvanized Finish: After fabrication, hot-dip galvanize complying with ASTM A 123/A 123M. F. Factory-Painted Finish: Comply with NAAMM's"Metal Finishes Manual for Architectural and Metal I Products"for recommendations for applying and designating finishes. 1. Surface Preparation: Clean surfaces to comply with SSPC-SP 1, "Solvent Cleaning,"to remove dirt, oil, grease, and other contaminants that could impair paint bond. Grind welds and polish surfaces to a smooth, even finish. Remove mill scale and rust, if present,from uncoated steel, complying with SSPC-SP 5/NACE No. 1, "White Metal Blast Cleaning,"or with SSPC-SP 8, "Pickling." 2. Interior Surfaces of Pole: One coat of bituminous paint, or otherwise treat for equal corrosion protection. 3. Exterior Surfaces: Manufacturer's standard finish consisting of one or more coats of primer and o finish coats of high-gloss, high-build polyurethane enamel. a. Color: As selected by Architect from manufacturer's full range. I 2.7 ALUMINUM POLES A. Poles: Seamless, extruded structural tube complying with ASTM B 429/B 429M, Alloy 6063-T6 with access handhole in pole wall. I B. Poles: ASTM B 209 (ASTM B 209M), 5052-H34 marine sheet alloy with access handhole in pole wall. 1. Shape: Verify with city requirements. 2. Mounting Provisions: Butt flange for bolted mounting on foundation or breakaway support. C. Pole-Top Tenons: Fabricated to support luminaire or luminaires and brackets indicated, and securely fastened to pole top. ID. Grounding and Bonding Lugs: Welded 1/2-inch (13-mm)threaded lug, complying with requirements in Division 26 Section "Grounding and Bonding for Electrical Systems," listed for attaching grounding and bonding conductors of type and size listed in that Section, and accessible through handhole. E. Prime-Coat Finish: Manufacturer's standard prime-coat finish ready for field painting. F. Aluminum Finish: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products"for recommendations for applying and designating finishes. 1. Finish designations prefixed by AA comply with the system established by the Aluminum Association I for designating aluminum finishes. DURHAM EDUCATION CENTER 082217 SECTION 26 56 00 EXTERIOR LIGHTING Page 7 of 8 2. Natural Satin Finish: Provide fine, directional, medium satin polish (AA-M32); buff complying with AA- M20; and seal aluminum surfaces with clear, hard-coat wax. 3. Class I, Clear Anodic Finish: AA-M32C22A41 (Mechanical Finish: medium satin; Chemical Finish: etched, medium matte;Anodic Coating: Architectural Class I, clear coating 0.018 mm or thicker) complying with AAMA 611. 111 4. Class I, Color Anodic Finish: AA-M32C22A42/A44 (Mechanical Finish: medium satin; Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, integrally colored or electrolytically deposited color coating 0.018 mm or thicker)complying with AAMA 611. a. Color: As selected by Architect from manufacturer's full range. 2.8 POLE ACCESSORIES A. Duplex Receptacle: 120 V, 20 A in a weatherproof assembly complying with Division 26 Section "Wiring Devices"for ground-fault circuit-interrupter type. 1. Surface mounted 12 inches above finished grade. 2. Nonmetallic polycarbonate plastic or reinforced fiberglass, weatherproof in use, cover, that when mounted results in NEMA 250, Type 3R enclosure. 3. With cord opening. 4. With lockable hasp and latch that complies with OSHA lockout and tag-out requirements. PART 3- EXECUTION 3.1 LUMINAIRE INSTALLATION A. Install lamps in each luminaire. B. Fasten luminaire to indicated structural supports. 1. Use fastening methods and materials selected to resist seismic forces defined for the application and approved by manufacturer. C. Adjust luminaires that require field adjustment or aiming. Include adjustment of photoelectric device to prevent false operation of relay by artificial light sources, favoring a north orientation. 3.2 POLE INSTALLATION A. Alignment: Align pole foundations and poles for optimum directional alignment of luminaires and their mounting provisions on the pole. B. Clearances: Maintain the following minimum horizontal distances of poles from surface and underground features unless otherwise indicated on Drawings: 1. Fire Hydrants and Storm Drainage Piping: 60 inches (1520 mm). 2. Water, Gas, Electric, Communication, and Sewer Lines: 10 feet(3 m). C. Concrete Pole Foundations: Set anchor bolts according to anchor-bolt templates furnished by pole manufacturer. Concrete materials, installation, and finishing requirements are specified in Division 03 Section "Cast-in-Place Concrete." D. Foundation-Mounted Poles: Mount pole with leveling nuts, and tighten top nuts to torque level recommended by pole manufacturer. 1. Use anchor bolts and nuts selected to resist seismic forces defined for the application and approved by manufacturer. 2. Grout void between pole base and foundation. Use nonshrink or expanding concrete grout firmly packed to fill space. 3. Install base covers unless otherwise indicated. 4. Use a short piece of 1/2-inch- (13-mm-)diameter pipe to make a drain hole through grout. Arrange to drain condensation from interior of pole. E. Embedded Poles with Concrete Backfill: Set poles in augered holes to depth below finished grade indicated on Drawings, but not less than one-sixth of pole height. 1. Make holes 6 inches (150 mm) in diameter larger than pole diameter. 2. Fill augered hole around pole with air-entrained concrete having a minimum compressive strength of 3000 psi (20 MPa) at 28 days, and finish in a dome above finished grade. 1 3. Use a short piece of 1/2-inch- (13-mm-)diameter pipe to make a drain hole through concrete dome. Arrange to drain condensation from interior of pole. 4. Cure concrete a minimum of 72 hours before performing work on pole. DURHAM EDUCATION CENTER SECTION 26 56 00Pa26 5 of 0 082217 EXTERIOR LIGHTING I F. Poles and Pole Foundations Set in Concrete Paved Areas: Install poles with minimum of 6-inch- (150-mm) wide, unpaved gap between the pole or pole foundation and the edge of adjacent concrete slab. Fill unpaved ring with pea gravel to a level 1 inch (25 mm) below top of concrete slab. 3.3 BOLLARD LUMINAIRE INSTALLATION A. Align units for optimum directional alignment of light distribution. I B. Install on concrete base with top 4 inches (100 mm)above finished grade or surface at bollard location. Cast conduit into base, and shape base to match shape of bollard base. Finish by troweling and rubbing smooth. Concrete materials, installation, and finishing are specified in Division 03 Section "Cast-in-Place I Concrete." 3.4 CORROSION PREVENTION A. Aluminum: Do not use in contact with earth or concrete. When in direct contact with a dissimilar metal, I protect aluminum by insulating fittings or treatment. B. Steel Conduits: Comply with Division 26 Section "Raceway and Boxes for Electrical Systems." In concrete foundations, wrap conduit with 0.010-inch-(0.254-mm-)thick, pipe-wrapping plastic tape applied with a 50 I percent overlap. 3.5 GROUNDING A. Ground metal poles and support structures according to Division 26 Section "Grounding and Bonding for Electrical Systems." 1. Install grounding electrode for each pole unless otherwise indicated. 2. Install grounding conductor pigtail in the base for connecting luminaire to grounding system. B. Ground nonmetallic poles and support structures according to Division 26 Section "Grounding and Bonding for Electrical Systems." 1. Install grounding electrode for each pole. I 2. Install grounding conductor and conductor protector. 3. Ground metallic components of pole accessories and foundations. 3.6 FIELD QUALITY CONTROL I A. Inspect each installed fixture for damage. Replace damaged fixtures and components. B. Illumination Observations: Verify normal operation of lighting units after installing luminaires and energizing circuits with normal power source. 1. Verify operation of photoelectric controls. C. Illumination Tests: 1. Measure light intensities at night. Use photometers with calibration referenced to NIST standards. Comply with the following IESNA testing guide(s): I a. IESNA LM-5, "Photometric Measurements of Area and Sports Lighting Installations." b. IESNA LM-50, "Photometric Measurements of Roadway Lighting Installations." c. IESNA LM-52, "Photometric Measurements of Roadway Sign Installations." d. IESNA LM-72, "Directional Positioning of Photometric Data." 3.7 DEMONSTRATION A. Train Owner's maintenance personnel to adjust, operate, and maintain luminaire lowering devices. END OF SECTION I I I I