Specifications Switchgear Air Insulated Deadfront.pdf
PDF 326 KB Posted
- Attached to
- Switch Gear, USD
- Solicitation number
- 23IFB8760
- Issued by
- Clay County, South Dakota
About this file
This document is a set of specifications for the procurement of 14.4kV air-insulated, deadfront padmount switchgear for the University of South Dakota (USD). The switchgear must meet applicable ANSI and IEEE standards and have a continuous rating of 600 amps and a short-circuit rating of 14,000 amps RMS symmetric. The switchgear is a double-sided, multi-way design with 4 switch modules. The enclosure must be mild steel, olive green in color, and resistant to salt spray. The load break switch modules must have a quick-make, quick-break mechanism, external operating mechanisms, and 600A bushings. S&C type PME, catalog #65242R1-M1 is the only acceptable manufacturer. Additionally, fiberglass box pads from Nordic Fiberglass, Inc. or Highline are required to properly support the switchgear.
Pricing terms, funding sources, and other commercial details are not provided in this technical specification document. The associated state and local contract opportunity is for the purchase and delivery of the specified electrical switchgear to the University of South Dakota in South Dakota.
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Other files
| File | Type | Posted |
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| SDVendorManual_20211221.pdf | ||
| Specifications Switchgear VFI.pdf | ||
| Specification IFB 23IFB8760 Switchgear.pdf |
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Text version
SPECIFICATIONS IFB 23IFB8760
SWITCHGEAR AIR-INSULATED DEADFRONT
PART 1 - GENERAL
1.01 GENERAL REQUIREMENTS:
A. Padmount switchgear shall be 14.4 kV nominal, 95 kV BIL, 600 amp continuous, 14,000 amps RMS sym. short circuit.
B. The switchgear shall meet the latest applicable requirements of ANSI/IEEE standards, including but not limited to ANSI C57.12.28, ANSI C37.20, ANSI C37.74, and ANSI/IEEE 386.
PART 2 - PRODUCTS
2.01 DEAD FRONT SWITCHGEAR:
A. Design:
1. Double-side padmount style with front and back access.
2. Multi-way with 4 modules.
a. (4) switch bays
3. Grounding studs at each incoming cable connection.
B. Enclosure:
1. Shall be mild steel.
2. Color: Olive green/Munsell.
3. Shall be free standing with padlocked security.
4. Enclosure finish shall be resistant to salt spray and shall have been successfully tested in accordance with ASTM B-117.
C. Load Break Switch Modules:
1. Three phase interrupter switches with 3-pole gang operated functionality.
2. Interrupter switches shall utilize a quick-make, quick-break mechanism which shall swiftly and positively open and close the interrupter switch independent of the speed of the switch operating handle.
3. External switch operating mechanism, folding switch operating handle in hub pocket.
4. Viewing window for visual identification of open or closed switch position.
Viewing windows shall be wide-viewing and mar-resistant.
5. 600 amp bushings, dead front, suitable for bolt-on elbow connections.
6. Modules shall include parking stands for each phase included on each switch way.
7. Insulation: Air-insulated.
8. Ratings:
a. 600 amp continuous
b. 600 amp load break, with fault close in ratings to exceed short circuit rating of the gear.
D. Acceptable Manufacturers:
1. S & C, type PME, Catalog # 65242R1-M1
2. No equal
2.02 BOX PADS FOR PADMOUNT SWITCHGEAR:
A. Fiberglass box pads shall be furnished and properly sized to match the padmount switchgear listed in the Bid.
B. Box pad shall be step designed of heavy construction in order to support the above switch.
C. Pad shall be sized to place the weight of the supported device as close to the outside edge as possible.
D. Height of pad shall be thirty-six (36) inches.
E. The box pad manufacturer shall be responsible for coordinating with the padmount switchgear supplier regarding pad size, top opening, etc.
F. Acceptable Manufacturers:
1. Nordic Fiberglass, Inc., type GS
2. Highline, FSG series
3. No equal.
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