TXX-6689, Interim Deficiency Rept CP-85-31 Re Class 1E Electrical Raceway Support Sys.Initially Reported on 861205.Refined Engineering Analysis Indicates Addl Supports Required.Next Rept Will Be Submitted by 871016
| ML20237F676 | |
| 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-85-31, TXX-6689, NUDOCS 8709010378 | |
| Download: ML20237F676 (3) | |
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Log # TXX-6689 Fi1e # 10110 E
E 903.9 TUELECTRIC William G. Counsil heculne Vke Prnhient V. S. Nuclear Regulatory Commission j
Attn: Document Control Desk j
Washington, D. C.
20555
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SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NO. 50-445 ELECTRICAL RACEWAY SUPPORT SYSTEM SDAR:
CP-85-31 (INTERIM REPORT)
Gentlemen:
On December 5, 1986 we notified you by our letter logged TXX-6138 of a deficiency involving the Unit 1 Class 1E Electrical Raceway Support System which we deemed reportable under the provisions of 10CFR50.55(e).
This is an interim report submitted to status corrective actions implemented to date.
Our latest report, logged TXX-6534 was submitted June 26, 1987.
This deficiency involves the installation of Separation Barrier Material (SBM) and Radiant Ene gy Shield (RES) material on Unit 1 Class lE Electrical Conduit Raceways without engineering interdisciplinary design review of the proposed change.
I As a result of refined engineering analysis, the corrective action required has been redefined as follows:
-Three conduit runs identified as overstressed will require the addition of twenty new supports.
-Fourteen existing supports identified as overstressed will be modified.
The physical rework associated with this corrective action is continuing.
8709010378 870828 ADOCK0500g5 PDR S
i fC 400 North Ohve Street LB 81 Dallas, Texas 75201 ifb
TXX-6689 August 28, 1987 Page 2 of 2 Based on our current projected schedule, our next report for this issue will be submitted no later than October 16, 1987.
Very truly yours, 0.C9 W. G. Counsil By:
D. R. Woodlan Supervisor, Docket Licensing l
DAR/gj c - Mr. R. D. Martin, Region IV Resident inspectors, CPSES (3) i l
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