ML20084C909

Corrected Telecopy Message of Ro:On 710405,wiring Error Resulted in Phase Reversal on Backup Power Supply to Reactor Injection Valve of LPCI Sys.Wiring Corrected.Cause Under Investigation

ML20084C909
Person / Time
Site:	Dresden
Issue date:	04/05/1971
From:	Hoyt H COMMONWEALTH EDISON CO.
To:	Grier B US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20084C904	List: ML20084C901 ML20084C909
References
11976, NUDOCS 8304080332
Download: ML20084C909 (2)

Text

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._ D1Vil 0F COMPL 1 ANCE RE GI Oil 3

/.~.333 799 ROOSEVELT RD GLEN ELLYN ~lLL 4

Till S I S TO CORRECT OUR E ARLIER TELEGRN.1 0F 42 25 71 iT SliOULD RE AD Tl1i S I S TO I NFORf.! YOU OF A 17i RING E RROR DI SCOVERED ON APRIL 4 1971 Tli AT RE SULTE D 'l N A Pli ASE 4

I REVERS AL ON TliE D ACK UP P0lVER SUPPLY TO TliE REACTOR lijJECTION V ALVE OF TliE LO'# PRE SSURE COOL ANT I NJECTI ON (LPCI)

SYSTEM Tif f S UOULD li AVE PREVENTED Ti1EM FROM OPER ATl NG AS DE St GNED WiiEN ON B ACK UP P017ER AND I S D

REPORTABLE UNpER SE CTI 03 6. 6. A.1 AN D 6. 6.Bn 2 0F TliE DPR g

Wu t201 (R b 66) 19 TECHNICAL SPECIFICATIONS TliE WIRING ERROR WAS CORRECTED IMMEDI ATELY AND AN I NVE STI G AT I ON IS'IN PROGRE SS TO DETERM I NE liOW 'l T OCCURRED TliE d.ETTE R.

REQU i RE D UNDE R SECTI ON 6. 6.B. 2

il LL P R OV I DE N.1 PL Y I FY l'NG

ll K 110YT SUPT DRE SDEN NUCLE AR POWER STATI ON.

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pintAngE J. P. O'Reilly TWX INCIDENT REPORT - DRESDEN 2 (50-237) co:ug DATE 1

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IN nALS REMARKS 2

9 DATE FROM (Name and unit) ogMAnKS Gaston Fiore111 In accordance with PI 1000, attached in the original and CO:III % "g/v turce copies oT a PJX~ report 7a~ted'T;5;71 reporting a wiring error.

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