ML20127G731

Forwards Safety Evaluation Re Eliminating Arbitrary Intermediate Pipe Breaks in Feedwater Sys.Proposal Acceptable.Main Feedwater Sys Designed to Minimize Potential for Damaging Flow Instabilities (Water Hammer)

ML20127G731
Person / Time
Site:	Vogtle
Issue date:	06/13/1985
From:	Novak T Office of Nuclear Reactor Regulation
To:	Foster D GEORGIA POWER CO.
Shared Package
ML20127G736	List: ML20127G731 ML20127G742
References
NUDOCS 8506260056
Download: ML20127G731 (2)

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 8 June 13, 1985 k * * . . * ,o Docket Nos: 50-424 and 50-425 Mr. Donald 0. Foster Vice President and General Manager Georgia Power Company P.O. Box 299A, Route 2 Waynesboro, GA 30830

Subject:

Eliminating Postulation of Arbitrary Intermediate Pipe Breaks in the Main Feedwater System of Vogtle Units 1 and 2 By letter dated April 24, 1985, you proposed that the postulation of arbitrary intermediate pipe breaks in the main feedwater system of Vogtle Units 1 and 2 be eliminated. In support of this request, you provided technical information regarding water hammer minimization features in the main feedwater system incorporated into the design and operation of the plant.

The staff has reviewed this information and has concluded that the main feedwater system is designed with features to minimize the potential for damaging flow instabilities (water hammer). We therefore find your proposal to be acceptable.

The staff's evaluation is enclosed.

Sincerely, l

l 9n

}omasM.Novak,AssistantDirector for Licensing Division of Licensing

Enclosure:

l As stated 19 4, cc: See next page gs1G{ W '

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l 8506260056 850613 PDR ADOCK 05000424 A PDR l

t- Mr. Donald Foster Vogtle Electric Generating Plant Georgia Power Company cc:

Mr. L. T. Gucwa Mr. William S. Sanders Chief Nuclear Engineer Resident Inspector / Nuclear Regulatory Georgia Power Company Commission P.O. Box 4545 P.O. Box 572 Atlanta, Georgia 30302 Waynesboro, Georgia 30830 Mr. Ruble A. Thomas Deppish Kirkland, III, Counsel Vice President - Licensing Office of the Consumers' Utility Vogtle Project Council Georgia Power Company / Suite 225 Southern Company Services, Inc. 32 Peachtree Street, N.W.

P.O. Box 2625 Atlanta, Georgia 30303 Birmingham, Alabama 35202 James E. Joiner Mr. R. E. Conway Troutman, Sanders, Lockerman, Senior Vice President - Nuclear & Ashmore Power Candler Building Georgia Power Company 127 Peachtree Street, N.E.

P.O. Box 4545 Atlanta, Georgia 30303 Atlanta, Georgia 30302 Douglas C. Teper Mr. J. A. Bailey Georgians Against Nuclear Energy Project Licensing Manager 1253 Lenox Circle Southern Company Services, Inc. Atlanta, Georgia 30306 P.O. Box 2625 Birmingham, Alabama 35202 Laurie Fowler Legal Environmental Assistance Ernest L. Blake, Jr. Foundation Bruce W. Churchill, Esq. 1102 Healy Building Shaw, Pittman, Potts and Trowbridge 57 Forsyth Street 1800 M Street, N.W. Atlanta, Georgia 30303 Washington, D. C. 20036 Tim Johnson Mr. G. Bockhold, Jr. Executive Director Vogtle Plant Manager Educational Campaign for i

Georgia Power Company a Prosperous Georgia Route 2, Box 299-A 175 Trinity Avenue, S.W.

Wayn'esboro, Georgia 30830 Atlanta, Georgia 30303 i

Regional Administrator Nuclear Regulatory Commission Region II i 101 Marietta Street, N.W., Suite 2900 i Atlanta, Georgia 30323