BUREAU OF RECLAMATION DOI, PO BOX 25007 DFC D7812, DENVER, CO 80225-0007

59 -- HIGH VOLTAGE DIVIDER SOL 142595RQ8100037 DUE 081895 POC Purchasing Agent, EVELYN M TATE, 303-236-8040, X228 The Bureau of Reclamation, Technical Service Center has a requirement for a High Voltage Divider (500 kV class) for indoor and outdoor use, for the measurement of AC and transient over- voltages, with stand and reusable shipping case. This notice requests bids in accordance with the following specifications, terms, and conditions. No written solicitation will be issued. Technical characteristics: High Voltage Divider Voltage divider will be used for outdoor testing purposes with most tests lasting 1 - 2 weeks. It will be connected on-line with other permanent high voltage equipment and be subjected to all on-line phenomena. Unit must be rugged and capable of being assembled, disassembled and shipped to different locations. Voltage divider must be constructed of proven design and materials. Manufacturer must prove the design by providing information on dividers of equal or greater voltage levels that were built by the manufacturer and are now in service. Definitions, specifications and test procedures are in accordance with: ANSI Std. C93.1-1990, ANSI Std. 4-1995. Rated Voltages: AC Nominal: 88 kVrms continuous; Max: 318 kVrms continuous; AC (50/60 Hz) withstand voltage, 1 Min. 900 kVpeak (dry); AC (50/60 Hz) withstand voltage, 1 Min. 780 kVpeak (wet); Lightning Impulse (BIL 1,2,50); 1800 kV; Switching Impulse (SIL 250,2500): 1300 kV; Divider Ratio: 45,000:1 (A secondary divider of 10:1 may be used to achieve this ratio if the divider is supplied with the standard 4500:1 output. Accuracy and response tests must be conducted at the overall 45,000:1 ratio.) Output Error: 50/60 Hz AC:( plus or minus 1%(Amplitude and Phase Angle for 10% to 110% nominal voltage); Harmonic voltages (120Hz - 6kHz): ( plus or minus 3%; Bandwidth(3dB):) 3MHz *1; Response Time: (60nS *1: Output Protection: approximately 50 Vp, (The secondary output with the 45,000:1 ratio should not exceed this value); Operating Temperature (Ambient):5 degree C to +40 degree C; Environment: Outdoor (Unit will be used outdoor for a maximum of 2 weeks without being cleaned. Environment should be considered at light pollution levels.) Elevation:( 1,000 M; Weight:( 1500 kG; Recording Equipment Input Impedance: 1Mohm plus 2 ft. input cable (cable supplied by factory). Factory tests:High Voltage Units: Measure the resistance, capacitance, and the dissipation factor before and after the following dielectric test. AC voltage withstand test at 900 kVpeak, 50/60 Hz, 1 min. Low Voltage Unit: Measure the resistance, capacitance, and the dissipation factor. AC voltage withstand test at AC voltage just below output protection level. Tests on complete divider: Measure the HV capacitance and resistance, and dividing ratio. Test with lightning impulses and record output - 10 pulses (BIL 1.2, 50) each polarity at 1800 KV. Measure the units step response. Note: *1 The bandwidth and response time specification are estimates of the values required to reproduce a majority of chopped lightning and switching impulses. These values can vary as long as the divider accurately reproduces standard lightning and switching impulses. The divider shall accurately reproduce these impulses when compared to a reference divider as defined in IEEE Std. 4. Proposed designs will be evaluated based on impulse response characteristics, bandwidth and response time. Quotations shall contain calculated values for the following step response characteristics (as defined by IEEE Std. 4): T, Talpha, T0, Ts, Overshoot in addition to bandwidth and response time. Before delivery, testing of divider must verify these calculations. Base shall support unit and withstand the mechanical stress resulting from wind of 100 km/h. Legs can be anchored to the ground. It should also be rugged and capable of being assembled, disassembled, and shipped with the voltage divider to different locations. The shipping box(es) shall hold the voltage divider, base, and all associated equipment. No one box should be longer than about eight feet. It must be reusable and designed to be lifted with a fork lift if the box weight is greater than 150 lbs. It may be made of wood. Documentation shall contain minimum clearance values and what the influence of neighboring grounded objects, energized objects and objects with high current have on scale factor and response characteristics. It shall also contain complete specifications, ratings, operation data, maintenance information, instructions on assembly, disassembly and shipping, all test results, and measured values. Delivery is required no later than December 31, 1995. FOB Destination Bureau of Reclamation, po Box 25007, D-7912A, Building 41, Ent E-17, Denver Federal Center, Denver, Colorado, 80225-0007. This solicitation is reserved for small business, Standard Industrial Code is 3825, business size standard is 500 employees. The contract awarded as a result of this solicitation shall contain the following FAR clauses: 52.203-3, 52.204-3, 52.210-5, 52.212-9, 52.213-1, 52.213-2, 52.213-3, 52.219-1, 52.225-3, 52.232-1, 52.232-25, 52.232-8, 52.233-3, 52.243-1, 52.246-1, 52.247-34, 52.249-1. Questions on the technical requirements of this solicitation should be directed to Jim Dehaan at (303)236-6058. Questions on this solicitation and quotations should be directed to Evelyn Tate, Purchasing Agent,(0216)

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