TXX-6432, Part 21 & Interim Deficiency Rept CP-87-06 Re Seismic Qualification of 480-volt 2,000 Kva Dry Type Transformers by Westinghouse.Initially Reported on 870406.Schedule of Task Completion Dates Developed.Next Rept by 870904

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Part 21 & Interim Deficiency Rept CP-87-06 Re Seismic Qualification of 480-volt 2,000 Kva Dry Type Transformers by Westinghouse.Initially Reported on 870406.Schedule of Task Completion Dates Developed.Next Rept by 870904
ML20215M152
Person / Time
Site: Comanche Peak  Luminant icon.png
Issue date: 05/06/1987
From: Counsil W, Keeley G
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
REF-PT21-87 CP-87-06, CP-87-6, TXX-6432, NUDOCS 8705130101
Download: ML20215M152 (1)


Text

E Log # TXX-6432 File # 10110

__. 903.10

= = Ref: 10CFR50.55(e)

TilELECTRIC

%illiam C.Coumil Emunw I'kr />esident U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)

DOCKET NOS. 50-445 AND 50-446 SEISMIC QUALIFICATION OF AS-BUILT 480 VOLT POWER CENTERS SDAR: CP-87-06 (INTERIM REPORT)

Gentlemen:

On April 6,1987, we verbally notified your Mr. Cliff Hale of a potentially reportable item involving 480 volt, 2000 KVA dry type transformers. These components were originally seismically qualified by the vendor (Westinghouse) with the primary feed high voltage cables routed through the bottom of the transformer enclosure. In the CPSES installed configuration, the feed cables were routed through the top of the enclosure, possibly invalidating the seismic qualification.

We have developed a schedule of task description completion dates required to complete the evaluation to determine the possible impact upon the safety of plant operations. The schedule indicates the final report will be complete August 15, 1987.

We will submit our next report on this issue no later than September 4,1987.

Very truly yours,

/

W. G. Counsil PD By: b +/

l G. S. Keeley

Manager, Nuclear Li sing i

WJH/mlh c - Mr. E. H. Johnson, Region IV l Mr. D. L. Kelley, RI - Region IV j Mr. H. S. Phillips, RI - Region IV l

400 North Olise Street LH. 81 Dallas Texas 75201 I y