Correspondence LjL 2w1— v67c ; r �
CTRIC CO., INC.
11401 NE MARX ST.
PORTLAND, OR 9722Q -1041
(503) 255 -9488 FAX 257 -7121
LETTER OF TRANSMITTAL
DATE: 8/23/2007
TO: City of Tigard
ADDRESS: 13125 SW Hall Blvd.
Tigard, OR.
ATTENTION: Permit Specialist
PROJECT NAME: Dartmouth Square
ATTACHED: BID
PROPOSAL
SUBMITTALS
CHANGE ORDER
SPECIFICATIONS
LETTER
x SHOP DRAWINGS
COMPACT DISK
OTHER
NUMBER OF COPIES: DESCRIPTION:
2 -sets Electrical Plans
1 Permit application
FOR YOUR USE
FOR YOUR REVIEW
x FOR APPROVAL
REMARKS
SIGNED RICHARD MARTIN 971 - 506 -3711 cell
MAILED
x DELIVERED RECEIVED BY:
FAXED DATE:
. 07/02/2008 12:22 5032577121 CAPITOL ELECTRIC PAGE 01
r •
FAX COVER SHEET
Capitol
Electric Co., Inc. Date: 7/2/2008
11401 NE Marx St.
Portland, Oregon 97220 -1041 Time: 1:34 PM
(503) 255 -9488 FAX 503 - 257 -7121
www. capttoletectncco. com
Please deliver the following pages to:
Name: Herb S.
Firm: Electrical Division
From: Richard Martin
Comments:
Dartmouth Square GFCI test report per your request
TOTAL NUMBER OF PAGES, INCLUDING COVER SHEET 5
IF YOU DO NOT RECEIVE ALL PAGES, PLEASE CALL (503) 255 -9488
. 07/02/2008 12:22 5032577121 CAPITOL ELECTRIC PAGE 02
Electrical Reliability ServiCes, Inc
Portland Service Center
4099 S.E. International Way (201)
EMERSON. Milwaukee, OR 97222
T (503) 853.6781
Process Management
Ground Fault System Test Report
at
DARTHMOUTH SQUARE
Tigard, OR
for
Capitol Electric
11401 NE Marx Street
Portland, OR 97220
Attention: Mr. Neil Kitzmann
Order No: NO232- 270775
Reference No. 3083557 Submitted By: Shane Smith
Field Engineer
June 20, 2008 Reviewed By: a. P 1
La r Newby
Service Center Manager
07/02/2008 12:22 5032577121 CAPITOL ELECTRIC PAGE 03
1 PURPOSE
Performance testing of ground fault protective equipment is conducted to verify
proper installation and operation. The National Electrical CodeT"! Section 230 -95(c)
requires an on -site test of all ground fault systems upon initial installation.
2 SUMMARY
This project was initiated by Mr. Neil Kitzmann with Capitol Electric. All testing was
performed by Electrical Reliability Services Field Engineers Mr. Shane Smith and
Mr. Timothy Brown on Friday, June 20, 2008.
Please refer to Section 5, "Results and Recommendations," for complete details of
the testing.
3 EQUIPMENT TESTED AND INSPECTED
3.1 Square D 1200 Amp molded case circuit breaker, model number PG 1200,
with a Micrologic 6.0A trip unit, and an S33927 neutral sensor configured as a
residual ground system.
4 PROCEDURES
4.1 Ground Fault Systems
4.1.1 Visual and Mechanical inspection
.1 Compared equipment nameplate data with drawings and
specifications.
.2 Inspected for physical damage. Usually inspected the
components for errors in polarity or conductor routing.
.3 Inspected neutral main bonding connection to assure:
• Proper size
• Ground connection was made ahead of neutral
disconnect link
.4 Verified that neutral sensors are connected with correct polarity.
Reference No. 3083557 Page 1
07/02/2008 12:22 5032577121 CAPITOL ELECTRIC PAGE 04
4.1.2 Electrical Tests
.1 Measured the system neutral -to- ground insulation resistance
with the main bonding jumper temporarily removed. Contractor
responsible for replacing the main bonding jumper after testing.
.2 Measured pickup current by primary injection at sensor.
.3 Verified the relay did not operate at 75 percent of the pickup
setting.
.4 Measured time delay at two points above pickup current level by
injecting current into the sensor. Total trip time was electrically
monitored.
5 RESULTS AND RECOMMENDATIONS
The ground fault relay system was found correctly installed and operating properly.
5.1 The main bonding jumper was removed for testing purposes.
It is recommended that the main bonding jumper be reinstalled prior to
energization.
5.2 The grounding electrode conductor was not installed.
It is recommended that a minimum of 3!0 copper cable be used for the
grounding electrode conductor.
5.3 No Toad neutral conductors were installed at time of testing. The contractor is
responsible for ensuring that no load neutrals are connected to ground.
5.4 Although the system operation is acceptable, if setting changes are made, it
is recommended that the system be re- tested and the settings documented.
5.5 In the absence of engineered settings, pickup current and time delay settings
were left at minimum for service energization. Electrical Reliability Services
accepts no liability for these settings. The design engineer should be
consulted for final settings.
Reference No. 3083557 Page 2