ML20236B390

Forwards Nonproprietary WCAP-11584 & Proprietary WCAP-11583, Technical Bases for Eliminating Accumulator Line Rupture as Structural Design Basis for Vogtle Unit 2. Application for Withholding Per 10CFR2.790 Also Encl

ML20236B390
Person / Time
Site:	Vogtle
Issue date:	10/16/1987
From:	Bailey J GEORGIA POWER CO., SOUTHERN COMPANY SERVICES, INC.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML19304B619	List: ML20236B390 ML20236B408 ML20236B412
References
GN-1404, NUDOCS 8710260157
Download: ML20236B390 (2)

Text

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' Gaorgia Power Company Fast Othce Box 282 .

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Waynesboro. Georgia 30830 Telephone 404 554-9961 404 724 8114 Southern Company Services. Inc.

Post Office Box 2625 -

Birmingharn, Alabama 35202 Telephone 20S 8706011 VOgtle Proj,ect 4 October 16, 1987  :

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U. S. Nuclear Regulatory Commission Attn: Document Control Desk File: X7BC35 Washington, D. C.-20555 Log: GN-1404.3

References:

1) GPC Letter GN-1364 to NRC, April 29, 1987 FI C

2) Vogtle FSAR' Section 5.2.5

3) Analysis of Experiments on Stainless Steel Flux Welds, NUREG/CR-4878, BMI-2151, April 1987

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4) GPC Letter GN-1383 to NRC, July 15,-1987 >@

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NRC DOCKET NUMBER 50-425 o >

CONSTRUCTION PERMIT NUMBER CPPR-109 C V0GTLE ELECTRIC GENERATING PLANT - UNIT 2 AUXILIARY LINE PIPE BREAK ELIMINATION PROGRAM Gentlemen:

In reference 1 above Georgia Power Company informed the NRC of its intention to seek a partial exemption from the requirements of General Design Criterion 4 of Appendix A to 10CFR50 for Vogtle Unit 2. The technical bases for the elimination of postulated ruptures is based on the leak-before-break (LBB) approach. The LBB approach is to be applied to the pressurizer surge line, the accumulator injection lines, and the residual heat removal (RHR) suction' line. In reference 4 above the technical bases for eliminating the pressurizer surge line rupture as the structural des 01 n basis for Vogtle Unit 2 was submitted. Enclosed with this letter is the technical bases for eliminating the accumulator line rupture as the structural design basis for Vogtle Unit 2.

Enclosed are:

1) Five (5) copies of WCAP-11583, " Technical Bases for Eliminating Accumulator Line Rupture as the Structural Design Basis for Vogtle Unit 2" (Proprietary).

2) Five (5) copies of WCAP-11584, " Technical Bases for Eliminating Accumulator Line Rupture as the Structural Design Basis for Vogtle Unit 2" (Non-proprietary).

Also enclosed is a Westinghouse Application for Withholding, CAW-87-098, Accompanying Affidavit, and Proprietary Information Notice. p j pf i av B710260157 071016

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i October 16, 1987 File: X7BC35 Log: GN-1404 Page two

- As this submittalt contains information proprietary to Westinghouse Electric Corporation, it is supported by an affidavit signed by ,

Westinghouse, the owner of the information. The affidavit sets i forth ~ the basis on which the information may be withheld from public disclosure. by the Commission and addresses with specificity the considerations listed in paragragh (b)- (4) of Section 2.790 of 4

i the Commission's regulation. i 1

Accordingly, it is respectfully requested that the information  !

which is ' proprietary to Westinghouse be withheld from public  !

disclosure in accordance with 10CFR Section 2.790 of the Commission's i regulations. Correspondence with respect.to the proprietary aspects of the Application for Withholding or the supporting Westinghouse affidavit should reference CAW-87-098 and should be addressed to R.. A. Wiesemann, Manager Regulatory and Legislative - Affairs, Westinghouse Electric Corporation, P. O. Box 355, Pittsburgh, ,

Pennsylvania 15230.

Should you need additional information, please inquire.  ;

Sincerely,

. h. Y J. A. Bailey Project licensing Manager JAB /wkl Enclosures xc: NRC Regional Administrator '

NRC Resident Inspector  !

J. P. O'Reilly R. E. Conway P. D. Rice L. T. Gucwa R. A. Thomas J. E. Joiner, Esquire M. A. Miller (2)

G. Bockhold, Jr.

R. Goddard, Esquire D. Feig R. W. McManus Vogtle Project File

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