TXX-6679, Interim Deficiency Rept CP-87-52 Re Apparent Inadequacy in Vendor Info Used as Design Input Which Could Result in Unsatisfactory Class 1E Battery Capabilities.Initially Reported on 870729.Next Rept Will Be Submitted by 871030
| ML20238B634 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/28/1987 |
| From: | Counsil W, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| CP-87-52, TXX-6679, NUDOCS 8709010321 | |
| Download: ML20238B634 (2) | |
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M llllll:' "lllllllll Log # TXX-6679 File # 10110
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E 908.3 Ref: 10CFR50.55(e) filELECTRIC wmn c. counsii August 28, 1987 Executive wce Preskknt U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50-446 CLASS lE BATTERY CAPABILITIES SDAR:
CP-87-52 (INTERIM REPORT) l Gentlemen:
On July 29, 1987, we verbally notified your Mr. H. S. Phillips of a deficiency involving an apparent inadequacy in vendor information used as design input which could result in unsatisfactory Class 1E battery capabilities..This is an interim report of a potentially reportable item under the provisions of 10CFR50.55(e).
Specifically, during electrical design validation, review of a calculation issued to justify feeding DC emergency lighting from Class 1E power sources indicated that vendor information on battery capability did not consider 1
temperature correction and aging for the batteries.
We are continuing our evaluation of the impact of this issue upon the safety i
of plant operations.
We anticipate submitting our next report by October 30, 1987.
Very truly yours, u).6d W. G. Counsil 8709010321 870828 PDR ADOCK 05000445 S
PDR By:
D. R. Woodlan Supervisor, Docket Licensing UE) ?i'l, - )
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CliC-.Ln c - Mr. R. D. Martin, Region IV Resident Inspectors, CPSES (3)
Q,, h 400 North Olive Street LB SI Dallas, Texas 75201
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