ML20004C359

LER 81-005/03L-0:on 810320,reactor Bldg Closed Cooling Water Pump 1D Tripped During Start.Caused by Installation of Undersized Fuse.Fuses Replaced

ML20004C359
Person / Time
Site:	Cooper
Issue date:	04/16/1981
From:	Bednar L NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20004C352	List: ML20004C351 ML20004C359
References
LER-81-005-03L, LER-81-5-3L, NUDOCS 8106030248
Download: ML20004C359 (1)

Text

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NRS PORM 384 U. S. NUCLEA3 RE!ULATM.Y COMMISSION d47) * ~j LICENSEE EVENT REPORT

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(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) ,

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? l Cl 'P CODE l Rl 1]@16 Ol 01-stCENSE 14 101010101 NUMBER l 0l Ol Ol@ 4 LICENSE JS 26 li l i lTYPE il il@l J0 l

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I 61 DOCKET NUMSER 09 F.'. ENT DATE 74 75 REPORT DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 l o w ene m 41 a < ng cl a..a enn14 ng un e , pumn in erinn a auring nenre and una one of I O l service for about 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Remaining 3 RBCCW pumps were operable. This event was re-1 Lo_L4_j lpetitive. Redundant systems were operable. This event presented no adverse effects l ITITl lupon public health and safety. I lo is i I __l IIIII l l 10181 l l 7 ee so E CODE SueC E COMPONENT CODE $UeC DE SU E ino,,l -I9 C lJ i@ Lo_J@ l C l@ I C l KI Tl Bi RIK l@ 0@ [zJ @

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CAUSE oESCRIPTION ANo CORRECTIVE *CTIONS h m IUndersized fuse was installed on a ITE size 4 motor starter control circuit of RCCW l u,,,Li J IPump ID. A spare size 4 starter was bench tested and its in-rush current measured &I i 2 Ifound to be the same as subiect starter. Control fuses in all size 4 starters on I L,i,,,,L),j l FCCM enmnnnon e n were chpelena & undernized fuses reolaced. Eouipment history records I i 4 la4a noe 4naience nimiine nrobioma with sizes 1.2.63 motor starters. I 7 a 9 80 STA 5 a. POWER OTHER $fATUS D85 RV DtSCOVERY DESCRIPTION W (,y,,j@ lo l 9 l 5 l@l NA l lB l@l Operator Observation l ACTIVITY CONTENT RELEASED OF RELE ASE AMOUNT OP ACTivlTY LOCATION OP RELEASE l,,1,,j6] d @ d @l NA l 1 NA l 7 8 3 10 .* 44 45 80 PERSONNEL f RPO5uRC*

NUV8ER TYPE 28SCRIPTION fiTTl 101010 l@lz_J@l ' "

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,ERsoN~EL,~;U4ES

• NUURE R DESCRIPTION li in i 10101Ol@l J N 'e 11 12 NA I 80 t USS OF Olt DAMAGE TO F ACallTV fvPE DiscitlP TION MA l l s a 't to 30 Y.u t i t t LiHPflON

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-i e o io es 69 so. s

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NAME OF PREPARER L. F. Bednar PHONE: E j 8106080 mg . ._ _