RFC_017_I-301_and_302_Duplicated_Breakers.doc

N32205-17-R-4008

USNS HENRY J. KAISER (T-AO 187)

REQUEST FOR SPECIFICATION CLARIFICATION

NAME OF CONTRACTOR: _

SPECIFICATION ITEM NO.:

301 and 302

PARAGRAPH / SECTION NO:

301 (3.2) 302 (3.1.2) and (7.3.1)

TITLE:301 Circuit Breaker Inspection and 302 Main and Emergency Cleaning

QUESTION:

In Item 301 the specification directs the contractor to perform the complete annual inspection, maintenance and repairs on designated air circuit breakers listed in 3.2.

In Item 302, 7.3.1 states that Government shall provide a technical representative to overhaul the main and emergency switchboard breakers as listed in paragraph 3.1.2. Provide the services of two qualified electricians to assist the Technical Representative in overhauling the breakers.

It appears that following circuit breakers are duplicated between item 301 and 302;

1. 1SA Tie Breaker - Main SWBD Tie Breaker 100H-3, Frame: 4000 Amps, Relay: 4000 Amps.

2. 1SB Tie Breaker - Main SWBD Tie Breaker 100H-3, Frame: 4000 Amps, Relay: 4000 Amps.

3. 1E-4P-LC7 – FWD Load Center LC7, 30HL-3, Frame: 600 Amps 600 Amps

4. 1E-4P-F – 120 VAC Emergency Buss, 30HL-3, Frame: 600 Amps, 400 Amp Relay.

5. 1E-4EL(1-40-1) – Emergency PP 1-40-130HL-3, Frame: 600 Amps, Relay: 150 Amps

6. 1SA-4P-GC3/4 – RAS Station 3 and 4 50HL-3, Frame 1600 Amps, Relay: 1200 Amps.

7. SPARE BREAKER (in Electric Shop) 30HL-3, Frame: 600 Amps, 400 Amps Please advise which item the above breakers will be serviced.

ANSWER:

301 is for servicing the Breaker, and 301 is for cleaning the switch board that the beakers are in not the same. Just the location is the same (ERC)

ATTACHMENT J - 8

henry.robson@navy.mil