ML19242B958
| ML19242B958 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 07/12/1979 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-79-11, NUDOCS 7908090586 | |
| Download: ML19242B958 (1) | |
Text
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July 12, 1979 Mr Janes G I:eppler Office of Inspection and Enforcement Reg.on III US Ifuelear Regulatory Conmi'ssion 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-155 - LICE:iSE DPR BIG ROCK POIIiT PLA:iT - RESPO:iSE TO IE BULLETI:i 79-11:
FAULTY OVER-CURRT"iT TRIP DEVICE IN CIRCUIT BREAKERS FOR ENGIIIEERED SAFETY SYSTEMS NRC letter dated May 22, 1979 forwarded the subject Bulletin.
The subject Bulletin discussed degradations found in the overcurrent trip devices of
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two specific 'Jestinghouse circuit breaker designs.
Consuners Power Ccapany was requested to determine if circuit breakers of these designs were in use at Big Rock Point and, if so, to take specific actions to address overcurrent trip device degradativn.
Neither of the two types of Westinghouse circuit breakers cited in the subject Bulletin are in use at Big Rock Point.
e David P Hoffman Assistant Nuclear Licensing Administrator CC Director, Offica of Nuclear Reactor Regulation Eircctor, Office of Inspection and Erforcement
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