ML19331D441
| ML19331D441 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/18/1980 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| References | |
| NUDOCS 8009020491 | |
| Download: ML19331D441 (4) | |
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Docket File TE (3)
NRC PDR Local POR LB #2 File A. Schwencer BCC: ACRS (16)
S. Burwell NSIC M. Service TERA D. Eisenhut R. Purple R. Tedesco Docket Nos. 50-445 and 50-446 AUG 181980 Mr. R. J. Gary Exs::utive Vice President and General Manager Texas Utilities Generating Company 2001 Bryan Tower Dallas, Texas 75201
Dear Mr. Gary:
SUBJECT:
CONFIRMATORY P!?ING ANALYSIS BY NRC CONSULTANT FOR COMANCHE PEAK STEAM ELECTRIC STATION Our letter dated January 8,1980, advised the Texas Utilities Generating Company that the Mechanical Engineering Branch (MEB) has instituted a program of performing an independent confirmatory piping analysis for each plant undergoing operating license review. For Comanche Peak, this analysis will be perfomed by our contract personnel at the Energy Technology EngineeringCenter(ETEC). That letter requested certain information to pemit our contract personnel at ETEC to proceed with the analysis for the main steam line for Unit 1, from Steam Generator No. 3 to the containment penetration.
A letter dated May 12, 1980, from the Texas Utilities Services, Inc.
(H. D. Schmidt) to the NRC (S. B. Bumell) provided an infomation package in response to the above request.
Our contract personnel at ETEC have recently requested additional infomation and clarification of the infomation provided earlier. The information requested is listed in the Enclosure. Additional Infomation Request for Confirmatory Piping Analysis, Comanche Peak Steam Electric Station.
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Mr. R. J. flary ggy3 Your response to this yequest should be transmitted in the same manner as your lettei of May 17. 1980. Upon completion of the review of your response, we will request a caeting with your representative to discuss any further questions concerning the confirmatory piping analysis and to examine the installed main steam line at the plant site.
Should you have questions concerning this request, please contact us.
Sincerely.
Robert Tedesco Assista... Director for Licensing Division of Licensing
Enclosure:
Additional Infonnation Request for Confirmatory Piping Analysis cc w/ enclosure:
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0 Mr. R. J. Gary Executive Vice President and AUG 181933 General Manager Texas Utilities Generating Company 2001 Bryan Towers Dallas, Texas 75201 cc: Nicholas S. Reynolds Esq.
Mr. Richard L. Fouke Debevoise & Liberman Citizens for Fair Utility Regulation 1200 Seventeenth Street 1668-B Carter Drive Washington, D. C.
20036 Arlington, Texas 76010 Spencer C. Relyea, Esq.
Resident Inspector / Comanche Peak Worsham, Forsythe & Sampels Nuclear Power Station 2001 Bryan Tower c/o U. S. Nuclear Regulatory Commission Dallas, Texas 75201 P. O. Box 38 Glen Rose, Texas 70642 Mr. Homer C. Schmidt Manager - Nuclear Services Mr. L. J. Auge, Manager Texas Utilities Services, Inc.
Facility Design Engineering 2001 Bryan Tower Energy Technology Engineering Center (ETEC)
Dallas, Texas 75201 P. O. Box 1449 Canoga Park, California 91304 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 David J. Preister Assistant Attorney General Environmental Protection Division P. O. Box 12548, Capitol Station Austin, Texas 78711 Mrs. Juanita Ellis, President Citizens A>- qiation for Sound 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 t
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ENCLOSURE ADDITIONALINFORMATIONRERESl FOR CONFIRMATORY PIPING ANALYSIS COMANCHE PEAK STEAM ELECTRIC STATION 1.
Piping fabrication specifications.
2.
The design transients to which the sttsm line is subjected. This includes changes in pressure and temperature with respect to time, flow rates, and the number of. cycles for each transient.
3.
Details of the M-1-3 containment penetration. The dimensions on the isometric drawing #2323-ML-3202-05 do not agree with the dimensions on drawing #2323-ML-0505.
From the supplied information it cannot be determined whether the penetration area is in fact a true anchor for all 6 degrees of freedom.
4 The locations of the hangers and snubbers cannot be verified from the information on the plan drawings furnished.
5.
More details are required on the snubber configurations. Are they single or multiple snubbers? What is the mounting configuration concerning eccentricities and the angles between snubber center lines and the pipe axis.
6.
Do the spring constants given for the rigid restraints and snuobers include the stiffness of the structure to which they are mounted?
If net this should be included.
7.
What are the spring constants of the spring hangers?
8.
What is MS-1-03-901-C77UV at Node 791, and what if any effect does it have on the piping analysis?
9.
There is not enough information on the isometrics for details A, B, and M5-1-0C3-909 C6 7W.
The details for these comp nents are required to assess their effect on the piping analysis.
10.
Is there some significance to the circled nodes on the isometrics with the BK numbers (i.e., Node 78 BK 14C).
- 11. On the "Line List" why are the " System Design Conditions" and the
" Pipe, Diameter Design Basis" different (Notes 1 & 2).
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