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Iz1vC31 ( Ce S `^) TarA X IS 301 NE 117th Avenue Vancouver,WA 98684 /4S'za rn'Y y 360-260-3900 desk 541-760-0622 cell November 21, 2012 Derek Cropp SolarCity 6132 NE 112th Avenue Portland, OR 97220 Subject: Grounding Electrode for Photovoltaic Array Mr. Cropp: 2011 NE 690.43(A) requires photovoltaic modules be grounded. 2011 NEC 250.136(A) allows the metal rack that supports the modules to be used to bond the modules to ground; however this section also requires that this array rack be connected to an equipment grounding conductor. 2011 NEC 250.32(A) requires a separate structure have a grounding electrode system. The NEC defines a structure as anything built; thus the array rack is a structure. 2011 NEC 250.52(A) describes the different types of acceptable grounding electrodes including water pipe, metal frame of a structure, concrete-encased electrode, ground ring, rod and pipe electrodes, plate electrodes, etc. Any of these electrodes can be used as the grounding electrode for a separate structure such as a photovoltaic array. 2011 NEC 250.52(A)(8) Other Local Metal Underground Systems or Structures. Other local metal underground systems or structures such as piping systems, underground tanks, and underground metal well casings that are no bonded to a metal water pipe. Since the driven array support posts are a structure and they are not bonded to a metal water pipe they would appear to qualify as a grounding electrode per the above definition. Respectfully, \`C PR©i(4:S:fi 18947PE� Michael Beanland,P.E. OREGON 4 Senior Electrical Engineer ?y9 P 18r , DAVID C ` )L) 1 TriAxis Engineering Intertek AUTHORIZATION TO MARK This authorizes the application of the Certification Mark(s) shown below to the models described in the Product(s)) Covered section when made in accordance with the conditions set forth in the Certification Agreement and Listing I Report. This authorization also applies to multiple listee model(s) identified on the correlation page of the Listing Report. This document is the property of Intertek Testing Services and is not transferable. The certification mark(s) may be applied only at the location of the Party Authorized To Apply Mark. Applicant: Schletter Inc Manufacturer: Schletter Inc 3761 E Farnum Place 3761 E Farnum Place Address: Tucson,AZ 85706 Address: Tucson,AZ 85706 Country: USA Country: USA Contact: Mr. John Van Winkle Contact: Mr. John Van Winkle Phone: (520)289 8752 Phone: (520)289 8752 FAX: (520)289 8699 FAX: (520)289 8699 Email: john.van.winkle@schletter.us Email: john.van.winkle@schletter.us Party Authorized To Apply Mark: Same as Manufacturer Report Issuing Office: Lake Forest, CA, USA Control Number: 4001890 Authorized by: lot William T. Starr, Certification Manager ETL CLASSIFIED C US us,ga Intertek This document supersedes all previous Authorizations to Mark for the noted Report Number. This Authorization to Mark is for the exdusive use of Intertek's Client and is provided ptrsuant to the Certification agreement between Intertek and its Client.Intertek's responsibility and liability are limited to the terms and conditions of the agreement.Intertek assumes no liability to any party,other than to the Client in accordance with the agreement,for any loss,expense or damage occasoned by the use of this Authorization to Mark.Only the Client is authorized to permit copying or distribution of this Authorization to Mark and then oily in its entirety.Use of Intertek's Certification mark is restricted to the conditions laid out in the agreement and in this Authorization to Mark.Any further use of the Intertek name for the sale or advertisement of the tested material,product or service must first be approved in writing by Intertek.Initial Factory Assessments and Follow up Services are for the purpose of assuring appropriate usage of the Certification mark in accordance with the agreement,they are not for the purposes of productbn quaity control and do not relieve the Client of their obligations in this respect. Intertek Testing Services NA Inc. 165 Main Street, Cortland, NY 13045 Telephone 800-345-3851 or 607-753-6711 Fax 607-756-6699 Standard for Flat Plate Photovoltaic Modules and Panels (ANSI/UL 1703 Third Edition dated March 15, 2002 Rev. 05/23/2011) Standard(s): Requirements for Flat-Plate Photovoltaic Modules and Panels(ULC/ORD-C1703-01-First Edition, amended October 2001) Outline Investigation for Rack Mounting Systems and Clamping Devices for Flat-Plate Photovoltaic Modules and Panels(UL Subject 2703, Issue#1, dated 10/04/2010) Product: Photovoltaic Racking System Models: FS system ATM for Report 100398713LAX-003 Page 1 of 1 ATM Issued: 26-Sep-2011 ED 16.3.15(8-Jan-10)Mandabry SCHLETTER TM inc FS SystemTM Ground Mount Installation Manual The Schletter FS System for ground mount photovoltaic(PV) installations is specifically designed to meet or exceed applicable IBC, ASCE, and UL standards. For more information on the FS System, please see system brochure. FS System Features 1. ETL classified to UL 2703, 17031 2. Electrically bonded unit 3. 20 amp series fuse rating 4. Pre-assembled components 5. Fully integrated and modular components The FS System is capable of accommodating nearly any framed or frameless PV module currently on the market. Each FS System is custom designed to meet specific structural load requirements3. Included in the FS System are clamps (Rapid2+TM GroundingClamp) specifically designed to secure the frame of a PV module to p Y 9 the FS System. In turn, the components and assemblies that comprise an FS System form an electrical) YP P Y Y bonded unit. While individual components and structural sections will vary between designs, the primary assemblies and installation methods will remain the same. During installation do not secure bolts to the final torque until the system is fully assembled. The following is a guide to properly install an FS System in order to meet design and test standards. Each installation step contains drawings detailed as follows: 1. Individual parts broken down into their components. Referred to as "EXPLODED COMPONENTS VIEW" 2. Pre-assembled components shown in their relative position to one another. Referred to as "EXPLODED ASSEMBLIES VIEW" 3. The completed installation step with assembled parts. Referred to as "ASSEMBLED VIEW" 'The FS System is evaluated for electrical bonding only .The FS System meets all IBC and ASCE requirements for structural loading; it has not been evaluated for loading under UL 2703. 2 Installer is responsible for verifying that system meets applicable NEC and CSA standards 3 Individual parts and components will vary from system to system. Please reference system specific drawings. !y•""` C Schletter Inc. • 3761 E Famum Place • Tucson,Arizona 85706 • Phone: (520)289-8700 • Fax: (520)289 8696 �a ISO _ t ! E-mail.mail©schletter.us • www.schletterpis o`�."J Mi ata Intertek `c [ SHLETTER rM FS SystemTM Ground Mount Installation Manual STEP 1: INSTALLATION OF FOUNDATION POSTS These instructions do not cover details of the ram-driven installation of support posts. Installation procedures may vary depending on terrain and other features that are out of the scope of these instructions. Take care to make sure system installation is within specified tolerances. x..s, STEP 1 INSTALLATION OF SUPPORT POSTS • i FINISHED GRADE FINISHED '. I � i 4 Ii Note: After ramming, the top of the foundation posts should be coated with a zinc dust primer(85% zinc content). Zinc dust primer is the only coating approved, according to standards,to provide the required protection. Basic zinc spray coatings do not provide long-term protection and longevity of the system. The primer should be used to coat the top 3 cm of the post, inside and out to seal potential abrasions. wk.C ,,,, W c schietter Inc. • 3761 E Famurn Place • Tucson.Arizona 85706 •'Phone: (520)289-8700 • Fax: (520)289-8896 al t5a t�� E-mail:mailt schietter.us www.schlettet.ua r CfY�. MI - ': week SCHLETTER TM FS SystemTM Ground Mount Installation Manual STEP 2: HEAD-PIECE ASSEMBLY IS BOLTED TO FOUNDATION POST a. Place head-piece onto foundation post b. Bolt head-piece in place using supplied hardware STEP 2.HEAD PIECE ASSEMBLY IS BOLTED TO SUPPORT *xJk }rx PY1•W4H- .M(%lll(JA1 :'•14 H.N+C tVt a411 iYCIT -fq gglF,t' IHS rc,4:r: 1.14.11.1,4P 1. SfUI 1,24 UM{ 1 IavA.'�1 °j�t'�"t'tlN6j1 NB 1 011:0*M MxO44I.''5:0 ../ 1 /1:1P21-1P2Sh:N'T:Pm,. N1BOB M 0)11rmwr:B 00)00100 um 1 1 9410)1050t•lee 4wltj Nanton) *00.M00IS)S41;MP%..homy wJN:nl Nil:4B: Ff nPUJf:i 9C N" .N51 11 WW1 010 I.wo±v9..MA(WCeW41 .0nir 4:n.p4 ln.Iw,'M1 h4.Hy A.01y WSPOW thln 'P /,I N:M:tE') 4 11'WIPP 012(+4*00. 414104+.: hxllw:prPh.N+::1l0*J 114 14..4 1pr:My 11.0..1 11 1 a.90c 041 'SNr.!Ru.Cp.p.:Yr.w'+r.5 R 1 1 .11150:OM 4a4 �k 14 1 941E 040 1r*. 4awt.1/ .,PP0090 v5..10 .4.911.12.1hVal mYn 'W:o a".+�y-40000.. w.r..v v 1 v 1 0.1 >a w:.o..rx.•. r' wu 012 r: wren-.i .r4,s.4.n I,e./.0.21 9 e Ppl hay 1/P r./r.., 21 .4 1 ',!hCa44elwwa.,:rw..0r.: bUm B.r_4.*,11n.w14m+bY t.a:1W+r 21 ' , ,40,,,,14:4‘ . ds ��' • ' } t 5 EXPLODEDCOMPONENIS VIEW ASSEMBLY DETAIL EXPLODED ASSEMBLIES VIEW IX GOMM f y ' ©Schietter Inca • 3761 E Famum Place • Tucson.Arizona 85705 • Phone: (520)289-8700 4 Fax (520)289-8696 �;\ Eso l ..-., E-mail:maileschietter.us 4 www.schietter.us °LC w MI-008 Urtertek L 7-,..._. SCHLETTER rM Inc FS SystemTM Ground Mount Installation Manual STEP 3: GIRDER &STRUT ASSEMBLY IS SET IN PLACE a. Position girder and strut assembly to rest on top of the head-piece assembly b. Bolt lower portion of strut to foundation post c. IMPORTANT! Insert locking wedge (Part# 142009-002) into the connector (Part# 140001-000) d. Verify that assemblies are set in place square STEP 3'GIRDER 8 STRUT ASSEMBLY IS SET IN PLACE '42 so Sir M'501':1.440!r•.b4M5 ASA 11E WOW,Os,2.f4\',..0...1:5^1:,52 SA,t,s2.l * .loth 14 'X ' a,. rlpAeA NSNot ,..4,444.04444404404. - 1 - i us*�.arsx� .. 1r11414144 ' f*F I � VA510 AA NAB, 43;. EXPLODED ASSEMBLIES VIEW EXPLODED COMPONENTS VIEW �` j )6 y „ ASSEMBLED VIEW V v .M 1nr1.31.4.4.5I>E'�rfm,le^a.. _.. •1.. AYk0U1 :111.1. CAA..9 't } IX••xr AA 1 kN1.Mrr...3•n q dr* A i rot'aw . ....9 96 r DETAIL AD n } 1.2.V.220, a4 51$est.1,0.. A ) 0 014400 Ns.S..s F... DETAIL A8 14 4 rn I0000n.m:tvx.400.1 :U K n*•.if 10.11k0:1.f.v N»kwfArr: 2 1, 14 6 SOW.)10n013041....r.l Ont.510 YM'i X.1 lJ 3v rr}wr }; 4 MW})1,015.nI:'M...,MH.1 'kO 3.41.11013 J..1`41vrJ1n.11..SVM•• . 4 I 916!GJMfaa4 3.a w4V01 .e.....go,..299 0.113.1.1.3...... H 4 3 *110])400 4..'^1.31,1.!iw.m5 }` 90 1...946 46a 4. h N. 4110.01 0+h1''.04 ' 4 4014 J O %UM V II K Si t tt 41 1 91.3 U 4 k1 vv.1*14,4 MI l 035 AA It :) S(144 1*9 t)pvr K a r •]: tl X H&b f 3)l v M 0. ”022 A, iF 1E k SAJ 910 NA UV J91'H y:: te- w... ��II r DETAIL AC DETAIL M 1111. r y'".\ 0 Schietter Inc, • 3761 E FarmanFarmanPlace • Tucson,Arizona 85706 • Phone: (520)289-8700 • Fax: (520)289 8696 so E-mail:mail©schtetter.us • www.schletter.us °!J" MI-oge [ SCHLETTER TM FS SystemTM Ground Mount Installation Manual STEP 4: PURLINS ARE CONNECTED TO GIRDERS The connection locations of purlins (rails) to girders are factory set. Do not loosen lower mounting clamp (Part # 141006-002) unless needed. a. Align purlin as shown on system specific drawings b. Slide lip of purlin under mounting clamp (Part# 141006-002) c. Verify that purlin is positioned correctly d. Secure purlin in place by tightening down upper mounting clamp (Part# 141006-000) STEP 4 PURLINS ARE CONNECTED TO GIRDERS i•Y:gi,FaNLSu cXYr}„il;vl YE F,v 'nYJ!'. vM (Yk:iM'iA bMNll] 6<. � r rvAGgy Y6iY4M1 tt) XHx,f [KY tb it&i t ' - OPP* 4164.,' N. : uY NI^,NA'fvY tYMC;NttEf 1M .103 �/ N ' A ikP' ., � -i- � Iv.YK((pNY r • EE a .r EXPLODED COMPONENTS VIEW .. DETAIL N , ASSEMe&Y DETAIL 3433 114831, Y<•M.WP.N lU 5(,H.NfMfN 4 4 180,35,41 WvH A.gayv „.wm '' 1 t +M34.�a1 „, ap 5 ftlH6R.s' Wn e Jvll.".R?51 RA V. Pk. yn,f bd5 Gvn w _is+atme av»;.uo.I DETAIL P 1111.61.11101110 , j y 5 i 5chieiter Inc. • 3761 E Famum Place • Tucson.Arizona 8b706 • Phone: (520)289-8700 • Fax: (520)289-8696 �`� tso t E-mail;mailcisch(etter.us • wr+uw.schletter.us °t[ �' MI 008 Intertek ScHLETTER TM FS SystemTM Ground Mount Installation Manual STEP 5: OPTIONAL SPLICE CONNECTION Often, it is necessary to join two shorter purlins together in order to form a longer section. In such cases purlins have a specific splice insert used to join two pieces together. (If splices are not used, continue to Step 6.) Splices should be approximately located at the quarter points of a given span. a. Attach first purlin to girder as stated in Step 4 b. Insert splice piece halfway into the end of first purlin section and secure in place using self-drilling screws(Part#943000-707) c. Loosely attach second purlin section to girder and slide over splice piece that is connected to first purlin. Secure in place using self-drilling screws (Part#943000-707) d. Verify purlin is installed in correct location as specified on the project drawings e. Secure assembled purlin in place by tightening upper mounting clamp (Part# 141006-000) SRI.E.v:Alr,5410 4.11$)BE 755$OF SOA.:gi 550151:151P.NCE STEP 5:OPTIONAL SPLICE CONNECTION +mt 7 TDP BA FOP RM407•5451,50 145151 S 101 1$5FF.35, ,. M€MD 19pr 104103 AF '15.8' Wt MIDYB'DS IlP0, !N4,OS 1-.95: M.n,41 Ye 1,4441 13141,3 I$XN5I 121F 9S' MI?MNDN'O lit4ti,I.50NJU 137 f•♦8,s 416 AND YK 90355M3pl IS 03 51-115.51 A 4.4404.440MIO re SOLI TORQUE 164MF 19,T. MC 4518S, , .. •,,,, ,':�S ,,;,, �;..:': :mus ��' 3 t ; f � l Bl w SPLICE DETAIL 1 r y ryryry 9 ASSEMBLY DETAIL PAP Vat a�% $ I uisr !.1,9 0't' fMtT iq)IA9FR DESCS'!nM'el 1. 14503 01 I I.G+.waa iu-{nn 1500 N) FS 54.top CMy. 1{I;IGA:;y! Xlo.I{S,.N�ELwev,I:;�NOn 8....5 14430001 h4 5.G,Mc, ISOMETRIC EACH n 3 14700iml 5tJ 5$45.4e.,,5 I 61 {'1430040' M,k,50[4.4.R. EXPLODED COMPONENTS VIEW - u t'945000555?(4) WOAD ®Schietter Inc. • 3761 E Famum Place • Tucson,Arizona 85706 • Phone. (520)289-8700 • Fax. (520)289-8696 fit 8696 ISO E-mail mail' schietter.us • www.schletter.us ` i° MI-DOE Intertek ESCHLETTER TM Inc FS SystemTM Ground Mount Installation Manual STEP 6A: MODULE CLAMP INSTALLATION Schletter grounding middle clamps ensure that PV modules are both physically secured and electrically bonded to the mounting system. Grounding clamps contain two stainless steel pins that pierce the anodized layer of a PV module frame. This forms an electrical bond between the frame and the purlin to which the module is attached. Take care to verify that clamping locations fall within allowable ranges, provided by the module manufacturer. a. Locate approximate locations of grounding clamps b. Insert M8 KlickTM component (Part# 129010-008) into purlin c. Insert M8 square nut(Part# 943914-008) into M8 Klick component, ensuring the rounded side of the nut is facing down d. Position PV module as specified on project drawings e. Secure in place by affixing the grounding middle clamp to the M8 nut with an M8 bolt f. Secure ends of modules in place with end clamps in the same manner as explained in steps a-e above 11 STEP 6A:MODULE CLAMP INSTALATION 4,10C40111 f l G 9af.•e•a r. 'lRFO AirW 1N: bFZk E0.Y.4M:. 1 KK.I,.y:TtiE•.i pKx ''bH Nt' __ No it Pwol tovo.!UV.% Ak> NCit P:1Hgi I GN.k i.,l.,.„. `, e Mtgigll RIP L!Jrobn - - -. 1184Ff Y!5°Ra!-I(SfN l41 4I?Sf t:.fl51 1'.... y y, 11 yM1C.i4) Lnitrp 80mr utI.W'",14FlA Y;= fiM,1�Fi1'yP3 ;i ti 1C N.W:Mt. 'taeWgAptiAM Cw.rC . YIAWU In:'',TV S1(1q.Mfh}Ct{g,S E , 4, t 'OtlVi W` iN Al. .4 U:9Wll ti.f:1r.y A, ! sh4!Ea:+kN 4A.'S C!<�Z Ae iiti(,g,'..;,uSl x,,v'` 4t tt 9ttAx''M 1+' tY114f}AA SxiYa WI.YN yl M i ,.. 11‘....,',£!, ,.., ,,,,,,,, 401 'yJ ✓ 3 y yrs N DETAIL U ''''''''''''''1,4,, `a, / '' EXPLODED COMPONENTS VIEW 4. 4 11 4' 46 ,.., . _. , „,,, _ . .. „,..,,,,, ., .,.„.,, ,,,„ .. ... ,„,,,, ,...,,, . _,,,,,,, ., , . ...,,,f, . .,,,„:,, ....°' DETAIL T r _. DETAIL R ASSEM&.Y DETAIL 'Schlatter Inc, • 3761 5 arriurrm Place • TU 'on,�r .85706 • Phone' (620)289-8760 • Fax (820)280-,8696 Iso E-mail'sioi, malil t htetter.us 4, schtetter.iis MI-ODe In ertek SCHLETTER TM Mc FS SystemTM Ground Mount Insta,Ila tion Manual STEP 6B: MODULE CLAMP INSTALLATION Schletter Rapid2+ grounding middle clamps ensure that PV modules are both physically secured and electrically bonded to the mounting system. Rapid2+grounding clamps contain two stainless steel pins that pierce the anodized layer of a PV module frame, forming ani electrical bond between the frame and the purlin to which the module is attached. Rapid2+ clamps are fully assembled units that snap into the purlin. Take care to verify that clamping locations are within allowable ranges. a. Locate approximate location of grounding clamps b. Insert Rapid2+ clamp into rail c. Align modules as required d. Secure Rapid2+ grounding middle clamp e. Secure ends of modules using Rapid2+ end clamps in same manner as steps a-d STEP 6B:INSTALATION OF RAPID 2.MODULE CLAMPS2 TNT naRT N rirrR DE .Rm?Mnl :. � , 5 •Ikrw]:. Rov A.;.pMantN;:,amm y -.,v-a2 rsHww iuD C,......rs ?y2F Bq i ity,BAi1U 2•N:.%KF.0.Nf!;I i 13 NN(105 n1Ail 61 7 '11JOAJp' Fy'i F,NG 7F.WM::eM* N6AND'•f BJll i(:R,7UF IS blFN(4iii�ASi N6ANDYM;BQ?fDRLL'E is llN4l�5i'!iASt b A 1"104.4.014040,0 D! WSJ iacba NM AND Ire BOO 1:WIS tGNU.f'JiT, ... -4).17 _..... M4 AND Ire BOO SCNYl+T'4.1Z: 12.,..1E {JNpP N,Yd•Y•) 4f SryA1143,7Bi ll'AAICIA+C Mxnlrsry 1416 AND Se 0014 TOPOUF 15'2114 N i89F'.IASI 81...2d 9A P118i�ap NvaveFj 9xrSuraYa.i�v..xN:14:+55 (1!F,O Nrtlw.q N2'ANU YA'eo.i IJNO'.if t521d F?aLei 1120f1 BSI '` '+°• , 0611'U JIA.,4am Hr*ar4i .N^IFI^F t]wRa(NOi•.3 24,n(flr rvMa�J... 5B S ,312) M'7,nn S .21.'0,.,AARSFn,Y)li uro IP arxmxv,ana N.o,.«.; rMag tb, Rawl 44 st ,rxro-axi Na ,mro";R1pa 2•.m 40.50,*o.;Nm+y 14 loioxv, , v , ,..... , ,..r"" � �,.'� as i DETAIL Y 7 vAAr..s K x +:d , EXPLODED COMPONENTS VIEW " -Y nLt b ��d^ 54 ..€- b *.;•;,. ,.',.•p xE • DETAIL W DETAIL V ASSEMBLY DETAIL This concludes the installation guide portion of this document. ImMAMA.G 1 ©Schietier Inc. • 3761 E Famum Place • Tucson,Arizona 85706 • Phone: (520)289-8700 • Fax: (520)289-8696 Iso CPS)..* E-mail:mail@schletter,us • www•schletter.us `� JS MIOQa Intertek SCHLETTER rM FS SystemTM Ground Mount Installation Manual CONNECTING MULTIPLE RACKS Many PV installations contain more than one mounting system. Such cases call for electrically bonding each of the different manufacturers mounting systems together. Since individual racks are fully bonded units it is only necessary to connect individual racks together from one single point to another single point. Only use stainless steel hardware when connecting harnesses or jumpers to the mounting system. Take care to prevent copper wires from directly contacting aluminum surfaces as this will cause corrosion. • The PV INSTALLER of Schletter's electrically bonded FS mounting system must provide the components necessary for the final connections to the grounding electrode system. Typically the installation will incorporate a grounding electrode (ground rod), appropriately sized copper wire, rated wire connectors, and grounding lugs which are rated for this purpose. The PV INSTALLER must follow all manufacturers' installation literature. Installation must comply with all applicable NEC/CSA sections including but not limited to; NEC 250 (Grounding and Bonding), NEC 690(Solar Photovoltaic Systems), CSA 22.1 (Safety Standard for Electrical Installations), Canadian Electrical Code Part 1, and all other applicable state, provincial, and local electrical code requirements. • • PV INSTALLER shall be fully responsible for all connections between Schletter's bonded FS mounting system and PV grounding electrode system. SAFETY' PRECAUTIONS Follow proper installation and safety procedures at all times. Edges of parts may be sharp. Follow proper lifting procedures. 4Mounting structure is comprised of stainless steel and aluminum components and is not evaluated for its fire rating. hletter Inc. • 3761 E Farman Plate Tucson.Arizona 85708 • Phone: (520)289-8700 • Fax- (520)289-8696 m { , iso -malt;mail'.achletter.us • www.schietter.us fid:J`"woos Intertek