ML20084K815

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Telecopy AO Re Relay Coils & Fuse of Refueling Sys Burnout. Caused by Failure to Follow Procedures for Wiring Check. Startup Will Not Be Until After Relays Replaced & Circuits Tested
ML20084K815
Person / Time
Site: Quad Cities  
Issue date: 03/11/1972
From: Stephenson B
COMMONWEALTH EDISON CO.
To: Boyd D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20084K817 List:
References
NUDOCS 8305190550
Download: ML20084K815 (1)


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RE GION 3 COMPL:l ANCE DLR DONT FONE TDVE CORDOVA ILL iO, 799 R00SEVELT RD GLEN ELLY,N llLLv-6 REFERENCE QU ADCI Tl'ES NUCLE AR POWER STATI ON UNI T ONE C

DPR 29,=APPENDI X A SECT.I.0N 63 6Ac.3 AND 6. 6Bo2 TliE RETRACTABLE CABLEy=0N Ti1E UNI'T ONE REFUElil NG BR.l:DGE WAS bel NG REPL ACE D WlTli A =CONCER CABLE AND TliE RECEPTACLE WAS BEING REWIRED 3

TO CONFORM =TO TliE M ANUFACTURERS WI RI NG PRI NTS DURI N G TliE 3

PROCE SS OF TiiE 3= OB Ti1E REFUEL'I.NG BRI.DGE WAS ENER GlZED BEFORE A Wl. RING CllECKr.=WAS PERFORMED BECAUSE Tl1E OUT OF SERVl.CE PROCEDURES WERE NOT3=FOLLOWED Tlil'S ACTION RESULTEDi Wtl 1701 in % 09) l'N Tile APPLl; CAT.10N OF 480 VOLT.Sv=TO A 120 VOLT RE ACTOR MANUEL CONTROL SYSTEMo SEVER AL3=REL AY, CO.l LS OPEN AND O

A FUSE OPER ATED WlilCli F AI LE D TiiE SY,STEMv=l]N A R0D BLOCK" M ODEo Ti1E RE ACTOR WAS SliUT DOWN AT THE TllMEv=0F Ti1E ACCUR ANCE AND WILL NOT BE STARTED UP UNTIL ALL DAMAGEDv:

l REL AY_S ARE REPL ACE D AND ALL ASSOCl ATED Cl.RCUI TS TESTEDv=

COMMONWE ALTH E DI SON COMP ANY, QUAD CI'TY, NUCCE AR POWER STAT lONy=

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