ML19260A633

Summary of 791031 Meeeting W/Util,Gilbert/Commonwealth Associates & BNL at Facility Re Familiarization W/Facility & Design Info for Stresses in balance-of-plant Piping Sys

ML19260A633
Person / Time
Site:	Summer
Issue date:	11/15/1979
From:	Tibbetts D Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 7912030028
Download: ML19260A633 (5)

Text

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NUCLEAR REGULATORY COMMISSION o

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NOV 3.!i1W9 DOCKET NO. 50-395 APPLICANTS: SOUTH CAROLINA ELECTRIC AND GAS COMPANY SOUTH CAROLINA PUBLIC SERVICE AUTHORITY FACILITY:

VIRGIL C. SUMMER NUCLEAR STATION, UNIT N0. 1

SUMMARY

OF MEETING HELD ON OCTOBER 31, 1979 AT THE SUMMER FACILITY 31, 1979, we met with representatives of South Carolina Electric and On October Gas Company (SCE&G) and Gilbert /Comonwealth Associates (Gilbert) at the Summer facility. Accompanying the Nuclear Regulatory Commission (NRC) staff were con-sultants from Battelle Pacific Northwest Laboratories (PNL); PNL has been con-tracted by the riRC to complete specific portions of the mechanical engineering review of the Sumer Final Safety Analysis Report. The persons attending the meeting are listed in the Enclosure.

The purpose of the visit was for the consultants to familiarize themselves with the facility and to gather design information for an audit calculation of stresses in a balance-of-plant piping system. Prior to the meeting, the staff and the consultants from PNL had selected the "C" main feedwater line (inside containment) as the pipe run that would be used in the audit calculations.

At the conclusion of the tour of the facility, Gilbert presented a package of infonnation on the "C" feedwater line. After going through the package with Gilbert, we identified several additional items that we would need for our cal-culations.

The items were:

1.

The "C" steam generator thermal and seismic displacements.

2.

The gaps between the feedwater line and pipe whip restraints.

3.

The design pressures and temperatures for the feedwater line.

4.

The loading combinations and stress allowables for the piping.

The forcing function that results from the feedwater ci.eck valve closing 5.

following a main feed line break outside of containment.

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The field changes not reflected in the design package.

7.

The "as built" installation drawings illustrating the location of the field welds.

Gilbert agreed to provide this information.

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f. T:ASY Dean L. Tibbitts Light Water Reactors Branch No. 2 Division of Project Management

Enclosure:

Attendance List ccs w/ enclosure:

See next pages 1461 322

Mr. E. II. Crews, Jr., Vice President and Group Executive - Engineering goy 151959 and Construction South Carolina Electric a Gas Company P. O. Box 764 Columbia, South Carolina 29218 cc:

Mr. H. T. Babb General Manager - Nuclear Operations and System Planning South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29218 G. H. Fischer, Esq.

Vice President & Group Executive South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29218 Mr. William C. Mescher President & Chie# Executive Officer South Carolina Public Service Authority 223 North Live Oak Drive Moncks Corner, South Carolina 29461 Mr. William A. Williams, Jr.

Vice President South Carolina Public Service Authority 223 North Live Oak Drive Moncks Corner, South Carolina 29461 Wallace S. Murphy, Esq.

General Counsel South Carolina Public Service Authority 223 North Live Oak Drive Moncks Corner, South Carolina 29461 Troy B. Conner, Jr., Esq.

Conner, Moore & Corber j4fj 3 1747 Pennsylvania Avenue, N. W. Washington, D. C. 20006 Mr. Mark B. Whitaker, Jr. Manager, Nuclear Licensing South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29218 Mr. O. W. Dixon Group Manager, Production Engineering South Carolina Electric & Gas Company P. O. Box 764 Columbia, South Carolina 29218

Mr. E. H.

rews, Jr.

Nov 15 gg cc: Mr. Brett Allen Bursey Route 1 Box 93C Little Mountain, South Carolina 29076 Mr. J. Skolds United States Nuclear Regulatory Commission P. O. Box 1047 Irmo, South Carolina 29063 1461 324

Il0V 15199 ENCLOSURE ATTENDANCE LIST MEETING WITH SCE&G OCTOBER 31, 1979 NRC - STAFF R. Stephens D. Tibbitts PNL G. Beeman J. Alzheimer SCE&G M. Whitaker J. LeBorde A. Koon D. Arthur F. Bradham GILBERT ASSOCIATES P. Buchanan H. Bamberger MEMBERS OF THE PUBLIC S. Bates A. Richardson 1461 325}}