05000338/LER-1980-060-03, /03L-0:on 800705,during Mode 1 Operation,Feeder Breaker for Electric Heaters Associated W/Safeguard Area Ventilation Sys Filter Tripped & Would Not Reclose During Testing.Caused by Breaker Failure.Breaker Was Replaced

/03L-0:on 800705,during Mode 1 Operation,Feeder Breaker for Electric Heaters Associated W/Safeguard Area Ventilation Sys Filter Tripped & Would Not Reclose During Testing.Caused by Breaker Failure.Breaker Was Replaced

ML19330B534
Person / Time
Site:	North Anna
Issue date:	07/30/1980
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19330B533	List: 05000338/LER-1980-060, Forwards LER 80-060/03L-0 05000338/LER-1980-060-03, /03L-0:on 800705,during Mode 1 Operation,Feeder Breaker for Electric Heaters Associated W/Safeguard Area Ventilation Sys Filter Tripped & Would Not Reclose During Testing.Caused by Breaker Failure.Breaker Was Replaced
References
LER-80-060-03L, LER-80-60-3L, NUDOCS 8008040146
Download: ML19330B534 (1)

LER-1980-060, /03L-0:on 800705,during Mode 1 Operation,Feeder Breaker for Electric Heaters Associated W/Safeguard Area Ventilation Sys Filter Tripped & Would Not Reclose During Testing.Caused by Breaker Failure.Breaker Was Replaced

Event date:
Report date:
3381980060R03 - NRC Website

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U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK / / / / / / / (1)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

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/V/A/N/A/S/1/ (2)

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LICENSEE CODE LICENSE NUMBER LICENSE TYPE CAT

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/L/ (6)

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(8) /0/7/3/0/8/0/ (9)

E DOCKET NUMBER EVENT DATE REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES (10)

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On July 5,1980, during Mode 1 operation, the feeder breaker for the electric /

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heaters associated with Safeguard Area Ventilation System (SAVS) filter 1-HV-

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FL-3A tripped and would not reclose during surveillance testing. The breaker /

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trip de-energized the heater bank which rendered the filter inoperable. Since /

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the redundant SAVS filter 1-HV-FL-3B remained operable, the health and safety /

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of the general public were not affected. This is contrary to T.S. 3.7.8.1

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and reportable pursuant to T.S. 6.9.1.9.b.

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SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUBCODE

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/M/B/ (11) /E/ (12) /A/ (13) /C/K/T/B/K/R/ (14) LA/ (15)

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SEQUENTIAL OCCURRENCE REPORT REVISION LER/R0 EVENT YEAR REPORT NO.

CODE TYPE N0.

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ACTION FUTURE EFFECT SHUTDOWN ATTACHMENT NPRD-4 PRIME COMP.

COMPONENT TAKEN ACTION ON PLANT METHOD HOURS SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

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/Z/ (20) /Z/ (21) /0/0/0/0/ (22) /N/ (23) /N/ (24) /A/ (25) /K/1/8/2/ (26)

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (27)

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The feeder breaker tripped and would not reclose due to a failure of the

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breaker. The breaker was replaced and surveillance testing completed on July /

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6, 1980. The failure does not appear to be generic at this time.

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FACILITY METHOD OF STATUS

% POWER OTHER STATUS / (30p OERY DISC 0ERY DESCRNM (32)

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/E/ (28;

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NA

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/ During Surveillance Test /

ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY (35)

LOCATION OF RELEASE (36)

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PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION (39)

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NA

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PERSONNEL INJURIES NUMBER DESCRIPTION (41)

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NA

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LOSS OF OR DAMAGE TO FACILITY (43)

TYPE

DESCRIPTION

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PUBLICITY ISSUED DESCRIPTION (45)

NRC USE ONLY

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NA

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NAME OF PREPARER W. R. CARTWRIGHT PHONE (703) 894-5151 8008040/ W