ML20010B936

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Submits Revised Response to IE Bulletin 80-20,re Failure of Westinghouse Control Switches.Lists Method of Contact Supervision & Quality of Switches
ML20010B936
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 08/04/1981
From: Gary R
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To: Seyfrit K
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-80-20, TXX-3380, NUDOCS 8108180497
Download: ML20010B936 (2)


Text

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TEXAo UTILITIES GENERATING COMIRNY Log # TXX-3380

    • """'^"""""^""*"^**'" File # 10115

.mif;7^."7..~, August 4, 1981 lg y. Stiles) o 0,'ete.ter Mr'. ~ Karl V. Seyfrit,l Director '

~ l'. S'. Nuclear Regulatory Commission Region IV RIV 611 Ryan Plaza Drive, Suite 1000 Docket Nos. 50-445/IE Bulletin 80-20 Arlington, TX 76012 50-446/IE Bulletin 80-20 3.1b /f g

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION I'll '/

1981-83 2300 MW INSTALLATION [' 8fChf  %

E UL E N 80- 0 -

  1. 'T.l 7 7 Olk 12 Nc>, u,W%*me

Dear Mr. Seyfrit:

4 The CPSES response to IE Bulletin 80-20 is revised as follows:

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1. Item 1 of the response: No change
2. Item 2 of the response: No change
3. Item 3 of the response:

Method of Contact Quantity of Switches Supervision Unit 1 Unit 2 Common A. Rewire contact light per 56 56 10 Westinghouse recommendation B. Supervision of contacts via 16 16 0 existing lights C. Installation of resistors to 0 0 10 ensure satisfactory minimum current D. No rework necessary 2 2 4 If you have any questions, please advise.

Sincerely,

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R(/J. Garyr RJG:tls 8108180497 810004 PDR ADOCK 05000445 till63 f 8

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i l cc: U. S. Nuclear Regulatory Comission Office of Inspection and Enforcement

, Division of Reactor Operations Inspection Washington, D.C. 20555 I

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