ML20150F155

From kanterella
Jump to navigation Jump to search
Final Deficiency Rept CP-87-121 Re 6.9 kV/480-volt Transformer Bus Bar Clearance.Initially Reported on 880106. Preliminary Analysis Required to Demonstrate Qualification Completed by Westinghouse.Util to Implement Minor Mod
ML20150F155
Person / Time
Site: Comanche Peak  
Issue date: 03/31/1988
From: Counsil W, Woodlan D
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CP-87-121, TXX-88357, NUDOCS 8804050026
Download: ML20150F155 (1)


Text

,

4..,

E Lo

C 903.10 M# ELECTRIC Ref.#10CFR50.55(e)

March 31, 1988 I,00hSU, U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C.

20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION DOCKET N05. 50-445 AND 50-446 6.9 KV/480V TRANSFORMER DOS BAR CLEARANCE SDAR: CP-87-121 (FINAL REPORT)

Gentlemen:

On January 6,1988, we notified you by our report logged TXX-88025 of a reportable deficiency involving the 6.9 KV/480V transformer bus bar clearance.

The purpose of this report is to status the corrective actions to date and to provide a corrective action implementation schedule.

The )reliminary analysis required to demonstrate the transformer qualification has 3een completed by Westinghouse. Westinghouse has indicated that with the present transformer configuration, the transformer would remain functional during a seismic event. However, TV Electric has couervatively elected to implement a minor design modification to clearly establish the desired design safety margin.

We anticipate completion of the modifications by September 1, 1988 for Unit 1 and Unit 2 fuel load for Unit 2.

Very truly yours, b,)b b W. G. Counsil By:

D. R. Woodlan Docket Licensing Manager VIP /grr c - Mr. R. D. Martin, Region IV O

Resident inspectors, CPSES (3)s OG04050026 890331 g g PDR ADOCK 05000445 i

S DCD

/

i a wk an< sur~l u n twus. ra.., n.m o