05000369/LER-1981-102-03, /03L-0:on 810621,peak Shock Annunciation 20.2 Hz Red Light Was Actuated.Caused by Wire from Contact Switch in Triaxial response-spectrum Recorder Pinched Between Contact Block & Mounting Frame,Resulting in Short.Wire Cleared

/03L-0:on 810621,peak Shock Annunciation 20.2 Hz Red Light Was Actuated.Caused by Wire from Contact Switch in Triaxial response-spectrum Recorder Pinched Between Contact Block & Mounting Frame,Resulting in Short.Wire Cleared

ML20009F446
Person / Time
Site:	McGuire
Issue date:	07/21/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20009F442	List: 05000369/LER-1981-102, Forwards LER 81-102/03L-0.Detailed Event Analysis Encl 05000369/LER-1981-102-03, /03L-0:on 810621,peak Shock Annunciation 20.2 Hz Red Light Was Actuated.Caused by Wire from Contact Switch in Triaxial response-spectrum Recorder Pinched Between Contact Block & Mounting Frame,Resulting in Short.Wire Cleared
References
LER-81-102-03L, LER-81-102-3L, NUDOCS 8107310161
Download: ML20009F446 (1)

LER-1981-102, /03L-0:on 810621,peak Shock Annunciation 20.2 Hz Red Light Was Actuated.Caused by Wire from Contact Switch in Triaxial response-spectrum Recorder Pinched Between Contact Block & Mounting Frame,Resulting in Short.Wire Cleared

Event date:
Report date:
3691981102R03 - NRC Website

text

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U. S. NUCLE A A Cut AToT.Y CCMMiS53o4 NRC PCMM M LICENSEE EVENT REPORT EXHIBIT A lj @

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I While in Mode 5, the "20.2 Hz" red light on the Peak Shock Annunciator was ch-l toi2i source of the stenal a tri, vin 1f g i served to be ON and after determination of the dec'tred 4nnaarnhia-This is '

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g o is i i safety of the public were not affected.

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[ i i o i l The "20.'2 Hz" red light ef the Peak Shock Annunciator was actuated because gi;ij 1 wire from its contact switch in the triaxial resoonse-spectrum recorder was I

block 1 gnched between the contact block and the metal frame where the contact

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,,3j l 1s mounted, causing it to be shorted to ground.

The wire was cleared and the !

i..i1 equipment checked.and declared operational.

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