ML19210D775
| ML19210D775 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 11/16/1979 |
| From: | Baer R Office of Nuclear Reactor Regulation |
| To: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| References | |
| NUDOCS 7911280055 | |
| Download: ML19210D775 (4) | |
Text
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,'g)e(f(g UNITED STATES
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g NUCLEAR REGULATORY COMMISSION 7.
- / t WASHING TON. D. C. 20555 NOV 16 ;gg Docket'Hos. 50-445 and 50-446 Mr. R. J. Gary Executive Vice President and General Manager Texas Utilities Generating Canpany 2001 Bryan Tower Dallas, Texas 75201
Dear Mr. Gary:
SUBJECT:
SAFETY-RELATED PROCESS INSTRUMENTATION TUBIriG MOUNTING (Comanche Peak Stean Electric Station, Units 1 and 2)
Your letter dated October 11,1979 (Log #TXX-3055) specified the criteria to be used for the design and construction of safety-related process instrumentation tubing supports at the Cornar.che Peak Steam Electric Station. We have concluded they provide an acceptable statement of the design criteria for the identified process instrument tubing supports.
In the opening paragraph of your letter you make a statement that a description of the methods for handling this equipment (i.e., the criteria for designing these supports) is not required by Regulatory Guide 1.70, " Standard Format and Content of Safety Analysis Reports for Nuclear Power Plants;" or NUREG 075/87,
" Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants." We cannot agree because we regard Section 3.9.3 of these docu-ments as requiring descriptions of the component supports for all ASME C1 ass 1, 2 and 3 equipment including the instrument tubing.- In either case, we request that you include the criterion given in your letter in a future amend-ment to the FSAR.
Although we conclude your statement of design criteria will provide assurance of structural integrity and therefore is acceptable, we believe a Code Case or Code revision will be required if you wish to have the pertinent instrument lines Code Symbol Stamped and have Code Data Reports filed covering these lines 1403 30 7911280 OW
f4r. R. J. Gary @i*I signed by the N-Certificate Holder responsible for the linesand the Authorized Inspector. Unless such a case was enacted or the Code revised, those portions of your ASME Class 2 or 3 instrument tubing meeting Criterion 6 would not meet NC/ND 3674 and therefore could not be Code Symbol Stamped or be covered by a Code Data Report.
Sincerely, htNbwCMt k Robert L. Baer, Chief
/;
If Light Water Reactors Branch No. 2 Division of Project Management ces: See next pages 1403
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9 fit. R. J. Gary MV16 9 i
Mr. R. J. Gary
'i Executive Vice President and
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General Manager y
Texas Utilities Generating Company 1
2001 Bryan Towers Dallas, Texas 75201 Nicholas S. Reynolds, Esq.
Debevoise & Liberman 1200 Seventeenth Street Washington, D.C.
20036 Spencer C. Relyea, Esq.
Worsham, Forsythe & Sampels 2001 Bryan Tower Dallas, Texas 75201 Mr. Homer C. Schmidt Project Manager - Nuclear Plants Texas Utilities Generating Company 2001 Bryan Tower Dallas, Texas 75201 Mr. H. R. Rock Gibbs and Hill, Inc.
393 Seventh Avenue New York, New York 10001 Mr. A. T. Parker Westinghouse Electric Corporation P. O. Box 355 Pittsburgh, Pennsylvania 15230 Richard W. Lowerre, Esc.
Assistant Attorney General Environmental Protection Division P. O. Box 12548, Capitol Statial Austin, Texas 78711 l403
?62 Mrs. Juanita Ellis, President Citizens Association for Sourd Energy 1426 South Polk Dallas, Texas 75224 Geoffrey M. Gay, Esq.
West Texas Legal Services 406 W.T. Waggoner Building 810 Houston Street Fort Worth, Texas 76102
Mr.. R. J. G a ry NOV16 3 Ms. Nancy Holdam Jacobson Citizens for Fair Utility Regulation 1400 Hemphill Fort Worth, Texas 76104 Mr. Richard Fouke 1668-B Carter Drive Arlington, Texas 76010 1403
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