Prior to the start of any work under the contract, the Contractor shall provide to the City, Certificate of Insurance Forms approved by the City and maintain such insurance until the completion of all project orders issued under the contract. Workers' Compensation - Standard Workers Compensation Policy Broad Form Comprehensive General Liability -- $1,000,000Combined Single Limit coverage to include: Premises-Operations; Products/Completed Operations; Contractual; Independent Contractors; City and Contractor's Protective; Personal Injury (Libel, Slander, Defamation of Character, etc.); Automobile Liability - $1,000,000 Combined Single Limit.
The contractor shall furnish Single-phase Pad-mount Transformers.
A. General:
a. These specifications are intended to cover the design and construction of a dead front, single phase,
loop feed, 60 Hertz, oil immersed outdoor type, pad mounted transformer.
b. It is the intent of these specifications that the bidder shall furnish their standard outdoor pad mounted
transformer complete with standard accessories and modifications as detailed in these
specifications.
c. The transformer shall be designed, built, and tested in accordance with the latest manufacturing
and testing standards of IEEE, ASTM, ANSI and NEMA. The transformers will have a design based
on 2 1/2% regulation at 0.8 pf and 100% loading. Transformer efficiency shall conform to DOE
Standard 10 CFR, Part 431.
B. Electrical Design Requirements:
The transformer shall be dead front, single phase, two winding, 60 hertz, oil immersed, outdoor type pad mounted
and shall be designed to operate with the low voltage neutral solidly grounded.
a. kVA Rating at rated voltage and 65E C temperature rise:
Order Quantity kVA
75
8 100
9 167
50
b. Voltage Rating:
High Voltage - 7,200 volts, phase to ground.
Low Voltage - 240/120 volts.
c. Insulation Levels:
High Voltage - 95 kV BIL
Low Voltage - 30 kV BIL
d. Taps:
Two 2-1/2% full capacity taps above and below normal in the high voltage winding for de-energized
operation For questions regarding this bid, please contact:
Michelle Braxton, Purchasing Manager
P.O. Box 869
Salem, VA 24153
Telephone: 540-375-3063
Fax: 540-375-4057
Email: lmbraxton@salemva.gov All questions and clarifications must be submitted by August 31, 202
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