SOLICITATION NOTICE
59 -- 345kV Vertical Break Disconnect Switch
- Notice Date
- 5/28/2004
- Notice Type
- Solicitation Notice
- Contracting Office
- 12155 W. Alameda Parkway Lakewood, CO 80228-2802
- ZIP Code
- 80228-2802
- Solicitation Number
- DE-RQ65-04WJ66838
- Response Due
- 6/29/2004
- Archive Date
- 7/29/2004
- Point of Contact
- Eileen Ray, Contracting Officer, 970-240-6275, eray@wapa.gov;Eileen Ray, Contract Specialist, 970-240-6275, eray@wapa.gov
- E-Mail Address
-
Email your questions to Eileen Ray, Contract Specialist
(eray@wapa.gov)
- Small Business Set-Aside
- Total Small Business
- Description
- These switches were manufactured in the early 1980s and installed at Western?s Shiprock Substation. Limited drawings are available for some dimensions on the switches. The switches are standard 3 phase outdoor air break disconnect switches. Only the current carrying parts are required in this procurement action. The disconnect switches were manufactured by: Brown Bovari, Type TTR U6, Serial B02259, 1600 Ampere rated continuous. The switches, once assembled in the substation, shall be suitable for the ratings specified below: 2000 Ampere rated continuous. NEMA 4 hole terminal pads. 1300kV BIL rated. 345kV Nominal system voltage. 70,000 Momentary amperes. New bolts are required for the installation of all new replacement parts. The switches are manually group operated. Center to center of the end rotating stack insulator to the center insulator is 22 inches. Center to center from the center insulator to the jaw stack insulator is 135 inches. The insulator bolt circle is standard 5? with the hole alignment being square with the switch blade. Measuring vertically from the center of the switch blade to the top of the insulator stack is approximately 6 ??. The jaw end of the disconnect switches mount directly to hard buss. Measuring vertically from the top of the insulator stack to the top of the NEMA 4 hole pad which connects to the hard buss is 1 ??. Measuring horizontally from the center of the jaw end insulator stack to the outside end of the NEMA 4 hole pad which connects to the hard buss is 11 ??. The top of all insulators are the same height. The switches are required to be corona free. Contacts:The main blade contacts shall be adjustable pressure, self-aligning, self-wiping, high-pressure contacts. All fixed contacts shall be backed by stainless-steel, or beryllium copper leaf springs, or be of the reverse current loop shape which eliminates contact burning under fault conditions. The current-carrying path shall not be through any spring. If the current path is through a moving pin, means shall be provided to maintain continuous, positive contact pressure on the pin. The shape of the material used for the contacts shall be such that there will be no galling of the contact metals when the switch is subjected to 500open plus 500close operations. Main Switch Blades:The blades shall be of hard-drawn copper or aluminum alloy for carrying the specified continuous and short-time currents. Stops, if required on the individual poles, shall be furnished as described below. If the blades are attached to castings, the blades and castings shall be connected by welding or by a bolted clamp. Apress fit between blade and casting is not acceptable. The main blades of all switches shall be counterbalanced to prevent them from falling closed from any position. If spiral springs are used on the hinge end of the switch for counterbalancing, the housing shall be designed so that ice cannot build up on the spring to impair the switch operation. Pressed fit joints shall not be subjected to spring pressure during any part of a switch operation. Hinge and Clip-End Assemblies:Pole unit castings may be of bronze or aluminum alloy. Bearings in the hinge-end operating levers shall be of the ball, roller, oilite-sleeve, plastic, stainless steel, or ball-and-socket type. All such bearings shall be firmly fixed in place and shall not require replacement or maintenance before performing at least 500 close-open operations. Stops shall be provided and the switch adjustments must provide for the blades to rest against the stops in the closed positions. Assembly:Each pole of each switch shall be completely assembled at the factory for shipment. Quantity 10 ea. This will be a firm fixed price contract with delivery 45 days. FOB Destination to Waterflow, NM. This is a 100% small business set-aside. The solicitation will be issued electronically on or about 08 Jun 2004 at the following site: http://e-center.doe.gov/.
- Web Link
-
Click here for further details regarding this notice.
(https://e-center.doe.gov/iips/busopor.nsf/UNID/EA6527891890B58E85256EA20055A338?OpenDocument)
- Record
- SN00594342-W 20040530/040528211729 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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