05000237/LER-1980-046-03, /03L-0:on 801202,control Rod Driveline Vol hi-hi Alarm Not Received During Reactor Scram.Caused by Incorrect Cable Length & Routing,Incorrect Transducer Placement & Mounting & Redundant Transducer Signal Interference

/03L-0:on 801202,control Rod Driveline Vol hi-hi Alarm Not Received During Reactor Scram.Caused by Incorrect Cable Length & Routing,Incorrect Transducer Placement & Mounting & Redundant Transducer Signal Interference

ML19340E188
Person / Time
Site:	Dresden
Issue date:	12/30/1980
From:	Holland P COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19340E183	List: 05000237/LER-1980-046-03, /03L-0:on 801202,control Rod Driveline Vol hi-hi Alarm Not Received During Reactor Scram.Caused by Incorrect Cable Length & Routing,Incorrect Transducer Placement & Mounting & Redundant Transducer Signal Interference
References
LER-80-046-03L-01, LER-80-46-3L-1, NUDOCS 8101060617
Download: ML19340E188 (2)

LER-1980-046, /03L-0:on 801202,control Rod Driveline Vol hi-hi Alarm Not Received During Reactor Scram.Caused by Incorrect Cable Length & Routing,Incorrect Transducer Placement & Mounting & Redundant Transducer Signal Interference

Event date:
Report date:
2371980046R03 - NRC Website

text

NRC PCRM 066 U. S. NUCLEAR REGULATORY COMMISSION s177I LICENSEE EVENT REPORT Ord CONTROL 3LOCX: l I

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ll 1 i,j l transducer place.nent optimized mounting modified, and transducer synchronized to the j !3i J same internal clock. The system was then satisfactorily tested. The same improvementsj

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Initiated indeoendent manual UT verifica' tion of SDV once per shif t on Uni:s 2 and 3.

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