ML20028G086

LER 83-001/01T-0:on 830119,w/plant in Mode 1,three Refueling Water Storage Tank Level Transmitters Failed High. Caused by Frozen Instrument Lines.Transmitters Thawed. Insulated Encls Will Be Installed

ML20028G086
Person / Time
Site:	Summer
Issue date:	02/01/1983
From:	Mckinney C SOUTH CAROLINA ELECTRIC & GAS CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028G084	List: ML20028G083 ML20028G086
References
LER-83-001-01T, LER-83-1-1T, NUDOCS 8302070383
Download: ML20028G086 (1)

Text

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1983, with the Plant in_ Mode 1. three (3) RefueliniWater l lolall Storage Tank (RWST) level transmitters failed high between the hours of Of>30 andl l o l 4 l l 0915. The failures occurred because of frozen instrument lines. There were no l o 5 l ndverse consequences during the event; however, for approximately 55 minutes. l a U e e e anne a n Ct kn Wuld haw lol6ll l lo l 7 l l prevented the automatic transfer of suction for the RllR and Spray pumps f rom thel

[oja l RWST to the Reactor Hu11 ding sumps in the event of an SI with Lo-Lo RWST level. l

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