ML20029C983
| ML20029C983 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 04/25/1994 |
| From: | George Wunder Office of Nuclear Reactor Regulation |
| To: | Skolds J SOUTH CAROLINA ELECTRIC & GAS CO. |
| References | |
| TAC-M88172, NUDOCS 9405030159 | |
| Download: ML20029C983 (4) | |
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E UNITED STATES i g 'e NUCLEAR REGULATORY COMMISSION
%, v f' WASHINGTON, D.C. 20555-0001 April 25, 1994 Docket No. 50-395 Mr. John L. Skolds Vice President, Nuclear Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station P.O. Box 88 Jenkinsville, South Carolina, 29065
Dear Mr. Skolds:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR STEAM GENERATOR REPLACEMENT REVIEW - VIRGIL C. SUMMER NUCLEAR STATION, UNIT N0. 1 (TAC NO. M88172)
By letter dated October 29, 1993, you requested changes to your Technical Specifications to support the steam generator replacement project. To assist the staff in its review of your submittal, please address the following questions:
1)
Provide a list of all NSSS and NSSS/B0P piping systems that are affected by the replacement of the steam generators.
2)
For each system, please provide the following information:
The number of mechanical / hydraulic snubbers, rigid a.
supports and pipe whip restraints before SG replacement.
b.
The number of mechanical / hydraulic snubbers, rigid supports and pipe whip restraints after SG replacement.
The number of snubbers replaced by rigid supports, if c.
any.
3)
What is the Code of Record for the reevaluated NSSS/B0P piping systems?
Is this the same Code to which the systems were originally designed?
4)
Provide justification for basing the design of the SGs on the 1986 Edition of the ASME Code,Section III.
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Provide the basis for the postulation of pipe breaks at VCSNS.
If you_ have any questions, please do not hesitate to call.
Sincerely, f
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George F. Wunder, Project Manager Project Directorate II-I Division of Reactor Projects I/II Office of Nuclear Reactor Regulation t..
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Virgil C. Summer Nuclear Station cc:
Mr. R. J. White Nuclear Coordinator S.C. Public Service Authority c/o Virgil C. Summer Nuclear Station Post Office Box 88, Mail Code 802 Jenkinsville, South Carolina 29065 J. B. Knotts, Jr., Esquire Winston & Strawn Law Firm 1400 L Street, N.W.
Washington, D. C.
20005-3502 Resident Inspector / Summer NPS c/o U.S. Nuclear Regulatory Commission Route 1, Box 64 Jenkinsville, South Carolina 29065 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta St., N.W., Ste 2900 Atlanta, Georgia 30323 Chairman, Fairfield County Council Drawer 60 i
Winnsboro, South Carolina 29180 Mr. Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 1
Mr. R. M. Fowlkes, Manager Nuclear Licensing & Operating Experience South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065 Mr. John L. Skolds, Vice President Nuclear Operations South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station Post Office Box 88 Jenkinsville, South Carolina 29065
April 25, 1994 5)
Provide the basis for the postulation of pipe breaks at VCSNS.
If you have any questions, please do not hesitate to call.
Sincerely, Original Signed by:
George F. Wunder, Project Manager Project Directorate 11-1 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation DISTRIBUTION Docket File NRC- & Local PDRs PD 11-1 Reading S. Varga G. Lainas W. Bateman P. Anderson G. Wunder M. P. Siemien, OGC E. Merschoff, Region 11 cc:
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