05000334/LER-1980-045-03, /03L-0:on 800629,during Proof Tests to Check Solid Protection sys,8N-16 480-volt Emergency Stub Bus Breaker Was tripped,de-energizing Boric Acid Pump.Caused by Personnel Error

/03L-0:on 800629,during Proof Tests to Check Solid Protection sys,8N-16 480-volt Emergency Stub Bus Breaker Was tripped,de-energizing Boric Acid Pump.Caused by Personnel Error

ML19330B441
Person / Time
Site:	Beaver Valley
Issue date:	07/25/1980
From:	Lacey W DUQUESNE LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19330B436	List: 05000334/LER-1980-045, Forwards LER 80-045/03L-0 05000334/LER-1980-045-03, /03L-0:on 800629,during Proof Tests to Check Solid Protection sys,8N-16 480-volt Emergency Stub Bus Breaker Was tripped,de-energizing Boric Acid Pump.Caused by Personnel Error
References
LER-80-045-03L, LER-80-45-3L, NUDOCS 8008040026
Download: ML19330B441 (1)

LER-1980-045, /03L-0:on 800629,during Proof Tests to Check Solid Protection sys,8N-16 480-volt Emergency Stub Bus Breaker Was tripped,de-energizing Boric Acid Pump.Caused by Personnel Error

Event date:
Report date:
3341980045R03 - NRC Website

text

U.S. NUCLEA2 REtuLATCRY COMMIS$lON NetC PORad 386 (F 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

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40 61 CoCKET NuusgR 64 69 EvtNT OATE 14 FS REPCRT OATE 40 EVENT DESCRIPTION ANO PRQ8A8LE CONSEQUENCES h l During performance of the proof tests to check the modified Solid State Protection l o 2 o

l System, the 8N-16 480V emergency stub bus breaker was tripped, thus de-energizing l

@l Boric Acid Pump [CH-P-2Al. Due to the loss of this pump, there was no boration flowl Q l path available. Boric Acid Pump (CH-P-2B) was available throughout this incident f

f5TO l but was not on the priority train.

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