ML20028E238

LER 82-028/03L-0:on 821215,routine Test on Fire Detection Sys Found Panel D407 Which Monitors Unit 1 Rod Drive Room Inoperable.Caused by Blown Fuse.Fuse & Indication Lights Replaced on 821215.Detection Sys Undergoing Design Review

ML20028E238
Person / Time
Site:	Point Beach
Issue date:	01/13/1983
From:	Fay C WISCONSIN ELECTRIC POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20028E237	List: ML20028E236 ML20028E238
References
LER-82-028-03L, LER-82-28-3L, NUDOCS 8301210108
Download: ML20028E238 (2)

Text

NRC FORM 366 U. 5. NUCLEA") CEiULATORY COMMISSION (7 775 LICENSEE EVENT REPORT

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3 7 E 60 61 DOCKET NUMBE R 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o 2 l On 12/15/82 during normal operation, a routine test on the fire detec- l io ;3; l tion system found panel D407 which monitors the Unit 1 rod drive room l o 4 l inoperable. An inspection of the rod drive room and an hourly fire l o 3 l watch inspection was instituted in accordance with Technical Specifi- l loisll cation 15.3.14.D. No other inoperable panels were found during this I o 7 l test. This event is reportable in accordance with '"echnical Specifi- l o o l cation 15.6.9.6.B.2. l 7 8 9 30 OE CODE S R E COM*ONE:4T CODE SLGC O'E SU E 7

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43 44 47 CAUSE DLSCAn 14081 AND CCar1ECTIVE ACTIONS h g l The cause of the failure wa.3 found to be a blown fuse in the power I i i l supply for the panel. LED indicating lights were also found burned outi

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82-028/03L-0 ATTACHMENT TO LICENSEE EVENT REPORT NO.

Wisconsin Electric Power Company Point Beach Nuclear Plant Unit 1 Docket No. 50-266 On December 15, 1982 during normal operation, a routine test on the fire detection system found panel D407, which An inspection monitors of the the Unit 1 rod drive room, inoperable.

rod drive room and an hourly fire watch inspection wasNo instituted other in accordance with Technical Specification 15.3.14.D.This event is inoperable panels were found during this test.

reportable in accordance with Technical Specification 15.6.9.6.B.2.

The cause of the failure was found Three LEDto be a blownlights indicating fuse in the power supply for the panel.

were also found burned out on the panel. The cause The of the blown fuse and fuse and burned out LED's could not be indicating lights were replaced and the system reenergized ondetermined.

December 15.

An engineering review involving the fire system manufacturer, the installation contractor, and Wisconsin Electric is planned to study the fire detection system components for possible changes which would prevent future failures and ensure operability of the system.

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