Bid Office, SPAWARSYSCEN, Code D21B, 53570 Silvergate Avenue, Bldg. A33, Room 0061, San Diego, CA 92152-5112

70 -- MODIFICATION: UNINTERRUPTIBLE POWER SYSTEM SOL N66001-Q-1776 DUE 082499 POC Purchasing Agent, Claudia A. Aguzar, D211, (619) 553-6330. Contracting Officer, Sylvia Proffit, (619) 553-3292. ***MODIFICATION TO SOLICITATION NUMBER N66001-99-Q-1776***, RECORD NUMBER 2382PR700004, CBD ISSUE DATE 7/07/99. This modification is issued to correct the specifications. The Uninterruptible Power System (UPS)is to replace an existing system. The UPS distributes conditioned power to our Software Development Labs. The critical load is powered by an inverter, which obtains its power from a battery backup system in the event of a utility power outage. This system is required to provide reliable power distribution 24 hours a day, 365 days a year. The minimum specifications for this unit are as follows: 1. Minimum 225kVA / 180kW, rated 60 Hz Uninterruptible Power System (UPS); 2. 94% +/- 1 % efficiency at 480 VAC input to 480 VAC output;3. Input Voltage -- 480 VAC, 3 Phase, 3 Wire plus ground; 4. Output Voltage -- 480 VAC; 3 Phase, 3 Wire plus ground; 5. Input Harmonic Filter; 6. All bussbars, wiring and transformers shall be made of copper; 7. Emergency Power Off; 8. UL1778 approved internal backfeed protection circuitry; 9. Power Monitoring System -- All voltage and current parameters will be monitored and displayed; 10. Remote Alarm Summary Panel; 11. Alarm Monitoring System -- Collect and retain information pertaining to alarm conditions; 12. External Maintenance Bypass; 13. Battery Pack System (expandable) -- 15 Minutes at 120kW; 14. Battery Monitoring System -- Collect and retain information pertaining to battery discharges; 15. Battery overcharge protection; 16. Seismic mounted components, in NEMA Type I enclosures;17. Year 2000 Compliant; 18. 2-hour response time during normal working hours; 19. Staffed 24-hour emergency dispatch service desk.Installation for the above unit to include the following: 1. Install external maintenance bypass; 2. Demo, remove and dispose of existing 60 Hz UPS and batteries; 3. Remove unused power/battery wiring conduit, racks and battery breaker box; 4. Install new UPS; 5. Connect unput and output feeders; 6. Connect controls and alarms; 7. Install and attach battery components; 8. Maintain space habitability; 9. Work to start on a Thursday after 1800 on a SSC SD off Friday week. Purchasing agent e-mail address: aguzar@spawar.navy.mil Posted 08/06/99 (W-SN364629). (0218)

Loren Data Corp. http://www.ld.com (SYN# 0416 19990810\70-0002.SOL)