ML19256G175

LER 79-098/03L-0:on 791129,while Replacing Section of Flex Conduit Leading to Flow Switch,One Lead Came in Contact W/ Case,Shorting Itself & Causing RHR Logic a Power Failure. Caused by Blown F-1 Fuse.Fuse Replaced

ML19256G175
Person / Time
Site:	Brunswick
Issue date:	12/21/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256G167	List: ML19256G166 ML19256G175
References
LER-79-098-03L, LER-79-98-3L, NUDOCS 7912270558
Download: ML19256G175 (1)

Text

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LICENSEE EVENT REPORT 4 * .

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5ouRC 60 Lhl 0 l 5 l0 l- l0 l 3 l 2 l4 l@l1l1l2 lo l7 lo hl il 9l 9l 1 I7 oh 61 DOCKET NUMBER 68 69 EVENT C ATE 74 75 REPORT DATE d0 EVENT CESCRIPTION AND PROBABLE CONSECUENCES h a 2 l While attempting to replace a section of flex conduit leading to flow switch l o 3 l E11-FSL-N021A, one lead that had been removed from the switch came in contact with l o 4 l the case, shorting that lead and causing an RHR Logic A power failure. [

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EFFECT S H ;' C C .VN ATT AC H V E N T *.9 A C-4 2AIVE CCMP. CCYPCNEN' ACTION CUTUAE S D'U ER YAN > ACTLcER TAKEN ACTI O N CN PL ANT Y E T-* C C HOURS SUSYlTTED FORM aB.

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41 lvlh 42 IAl@ !X 91919lg 43 44 47 CAUSE CESCAlPTION AND CORRECTIVE ACTIONS h i o l When the wire came in contact with the case, Fuse F-1 blew. The leads to NO21A were l i i i reconnected and the fuse was replaced. All ISC and Electrical personnel will I

, 7 l receive retraining en the necessity of taking clearances to de-ener;;ize circuits when oossible prior to performine maintenance. i i 3 )

I i 4 I Bo 7 8 9 F ACILITY VETHCO CF STATUS  % POWER OTHER STATUS CISCON ERY OISCOVERY DESCRIPTION 1 s [ E_jh l 0 l 9 l 9 l@l NA l lAl@l Annunciator l

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ACTIVITY CCNTENT AMCUNT OF ACTIVITV LOCATION CC AE LE ASE AELEASED OFAELEASE i c LzJ @ L J@l NA I I NA I 10 44 45 30 7 8 9 11 PERSONNEL EXPCSUAES NUvSER TYPE C E SCRIPT!CN i 7 101010l@lzl@l NA l g O@ A m a' PERSCNNE L INJURIES NuveER DESCRIPTION h

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30 7 8 9 11 LCSS CF CR DAMAGE TO F ACILITY

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NAME OF PREPARER A. C. Tollison. Jr. PHCNE: 919-457-9321 I