ML20052A661

LER 82-005/03L-0:on 820226,4160-volt B Train Ac Electrical Power Circuit Declared Inoperable When Emergency Bus 2G de-energized.Bus 2G de-energized When Breaker 2-DG15 Opened. Cause Under Investigation

ML20052A661
Person / Time
Site:	Farley
Issue date:	03/25/1982
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20052A660	List: ML20052A659 ML20052A661 ML20052A663 ML20052A667 ML20052A671
References
LER-82-005-03L-01, LER-82-5-3L-1, NUDOCS 8204280557
Download: ML20052A661 (2)

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l > l [At 1000 on 2/2_6/82 the 4160 volt "B" train A.C. electrical power circuit was declared _.

TTTI linoperable when emergency bus 2G was deenergized.' Tech. Spec. 3.8.1.1, in 7lT] [part, requires the 4160 volt "B" train electrical circuit to be operable. Tech. Spec._

.;3; ;3.8.1.1 action statement requirements were met. The health / safety,of the public was

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Ii 42 43 34 CAUSE DESCHIPilWI AND CORRECTIVE ACTIONS

, I a l [The 2G bus was deenergized when breaker 2-DG15 opened. All events considered as possible I i j lcauses were investigated. Instrumentation indicators and recordings were not sufficient,,

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LER 82-005/031-0 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS event should a similar incident occur in the future. Following a thorough inspection of the breaker and circuitry, the 2-DG15 breaker was closed restoring the "B" train electrical circuit at 1509 on 2/26/82.

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