ML20066J540

Forwards Nonproprietary WCAP-12826 & Proprietary WCAP-12825, Technical Justification for Eliminating Large Primary Loop Pipe Rupture as Structural Design Basis for Jm Farley Units 1 & 2 Nuclear Power Plants, Per 901118 & s

ML20066J540
Person / Time
Site:	Farley
Issue date:	01/28/1991
From:	Hairston W ALABAMA POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML19310D162	List: ML20066J540 ML20066J550 ML20066J566
References
NUDOCS 9102040232
Download: ML20066J540 (2)

Text

l Alabama Pcmer Company 40 inverness Center Parkway 7 Post Offee Box 1295 '

Damengham. Alabama 35201 ,

Telephone 205 868-5581 W. G. Hairston, til Senior Vice President Nucioar Operations Alabarlia Power January 28, 1991 the muMn e4ctre system 10CFR50, Appendix A, Criterion 4 Docket Nos. 50-348 50-364 U. S. Nuclear Regulatory Commission ATTN: . Document Control Desk Vashington, D. C. 20555 Gentlemen Leak-Before-Break (LBB) Analysis j Joseph H.'Farley Nuclear Plant - Units 1 and 2 By letters dated November 18, 1990 and January 14, 1991, Alabama Power Company submitted a bounding assessment of the inherent-integrity of the reactor

' coolant system piping using the LBB methodology in support of the 15% steam generator tube plugging licensing amendment. Alabama Power committed to submit the completed'LBB analysis'by January.31, 1991.

l General' Design Criterion 4 allows plants to eliminate the dynamic effects of the rupture of high -energy lines from the plant design basis when analyses reviewed and approved by the Commission demonstrate that the probability of fluid.. system piping rupture is extremely lov. Alabama Power-Company herewith submits a detailed LBB analysis for the purpose'of eliminating the-dynamic n' effects of pipe rupture in the reactor coolant loops of Parley Nuclear Plant Units 1 and 2.

The attachment contains.

1. WCAP-12825 - Technical justification.for eliminating large primary-

. loop pipe rupture.as the structural-design basis for the Joseph H.

Farley Units.1 and-2 Nuclear Power Plants (Proprietary).

2. VCAP-12826 - Technical- justification for' eliminating large primary .

loop pipe: rupture as the structural design basis for the Jost S H.

Farleyfunits 1 and 2 Nuclear Power Plants (Non-Proprietary). ,

Also enclosed are a Vestinghousel authorization letter, CAV-91-119, accompanying '

affidavit,! Proprietary Information Notice, and-Copyright Notice. q 9102040232 9go129 fDR ADOCK 0500o34g PDR l.+ %a da,w w W"

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U._Si Nuclear Regulatory Commission _ Page 2 As VCAP-12825 contains~-information proprietary to.Vestinghouse Electric Corporation, it.is suppo'rted by an affidavit signed by Vestinghouse, the owner.

of the information. The affidavit sets forth the basis on which the information may be withheld from public-disclosure by the Commission and-addresses with specificity the considerations listed in paragraph (b)(4) of - i Section 2.790 of the Commission's-regulations.  :

Accordingly, it is respectfully requested that the information which is proprietary to Vestinghouse be withheld from public disclosure in accordance s with 10 CFR Section 2.790 of the Commission's regulations. .

Correspondence with respect to the copyright or proprietary aspects of the .

-items listed above or the supporting Vestinghouse affidavit should reference-CAV-91-119_and should be addressed to.Hr. R. P. D1 Piazza, Manager, Operating ,

Plant Licensing Support, Vestinghouse Electric Corporation,-P. O. Box 355,

' P1ttsburgh, Pennsylvania' 15230-0355.

In accordance with the requirements of General Design criterion 4, it is requested that-the attached LBB analyses be reviewed and approved for Joseph H.

Farley Nuclear Plant, Units _1 and 2. .

If there are any questions, please advise.

Respectfully submitted, ALABAMA POVER COMPANY 1k rt o~

W o . llairston, III-VGH,III/REH:sh 29.10 Attachment- SVORN TO AND SUBSCRIBED BEFORE HE t cct Mr.lS.'D. Ebneter TilIS M8#d DAY OFMoimao/ ,1991

- Mr. S. T. Iloffman # -(/

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