TXX-3690, Deficiency Rept Re nonsafety-related Components in Cooling Water Class V Piping.Controls Will Be Added to Existing Level Transmitters by 830801 to Sense Depletion of Surge Tank
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| ML20072J608 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/21/1983 |
| From: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | Madsen G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, TXX-3690, NUDOCS 8306300167 | |
| Download: ML20072J608 (2) | |
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|---|---|
Category:DEFICIENCY REPORTS (PER 10CFR50.55E & PART 21)
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7 TENAS UTILITIES GENERATING COMPANY
- b mit tiltYAN 'IUWisit ILglJ AM.TINAN 7*>*518 :ss G3 R. J. GARY S'='=E"~ June 21, 1983 3@BOMM 3' TXX-3690 JN 2 41983
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1 ih Mr. G. L. Madsen, Chief Reactor Project Branch 1 "p.
U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement 611 Ryan Plaza Drive, Suite 1000 Docket Nos.: 50-445 Arlington, TX 76012 50-446 COMANCHE PEAK STEAM ELECTRIC STATION COMPONENT COOLING WATER CLASS V PIPING QA FILE: CP 83- 11, SDAR-111 FILE NO.: 10110
Dear Mr. Madsen:
In accordance with 10 CFR 50.55(e), we are submitting the enclosed report of actions taken to correct a deficiency regarding the component cooling water system Class V piping.
Supporting documentation is available at the CPSES site for your Inspector's review.
Very truly yours, RJG:ln Enclosure cc: NRC Region IV - (0 + 1 copy) j Director, Inspection & Enforcement (15 copies)
U. S. Nuclear Regulatory Commission Washington, DC 20555 i//
B306300167 830621 DR ADOCK 05 4y
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-TXX-3690 Juns 21, 1983 COMPONENT COOLING WATER CLASS V PIPING DESCRIPTION OF THE DEFICIENCY During an unrelated engineering evaluation, non-safety related components were observed in the component cooling water system. The system configuration involves the cross operation of both safety trains. Failure of these components could deplete the surge tank disabling the system prior to operator action.
SAFETY ANALYSIS Had the deficiency gone undetected, the operability of the safety class component cooling water systeca could not be assured during and after a seismic event.
CORRECTIVE ACTION Controls will be added to the existing level transmitters in order to sense depletion of the surge tank. An empty signal will automatically isolate safe-guard loops. Also, non-safety related components in these loops will be upgraded to maintain seismic integrity of the system. No operator action will be required.
DATE OF IMPLEMENTION These modifications are currently scheduled to be complete August 1, 1983.
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