ML20003C045

Indicates That Models in NEDE-20566-P, GE Analytical Model for LOCA Analysis Per 10CFR50 App K, Conservatively Bound Clad Swelling & Rupture Concerns of NUREG-0630,in Response to NRC 801017 Ltr.Eccs Analysis to Be Completed Sept 1982

ML20003C045
Person / Time
Site:	Perry
Issue date:	02/20/1981
From:	Davidson D CLEVELAND ELECTRIC ILLUMINATING CO.
To:	Tedesco R Office of Nuclear Reactor Regulation
References
RTR-NUREG-0630, RTR-NUREG-630 NUDOCS 8102260507
Download: ML20003C045 (1)

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THE CLEVELAND ELECTRIC ILLUMIN ATING COMPAMY P o Box 5000 m CLEVELAND. OHIO 44101 e TELEPHONE (216) 622 9600 e ILLUMINATING BLOG e $$ PUBLIC SoVARE Serving The Best Location in the Nation DIlwyn R. Davidson viCE PRESIDENT SYSTEM ENG'NEERlNG AND CONSTRUCTiCN February 20, 1981 Mr. Robert L. Tedesco Assistant Director for Licensing Division of Licensing U.S. Nuclear Regulatory Cocmiission Washington, D.C. 20555 Re: Perry Nuclear Power Plant Docket Nos. 50-440; 50-441 Staff Position on Cladding Swelling and Rupture Models for Analyses

Dear Mr. Tedesco:

As requested in your letter dated October 17, 1980, the followint information is provided concerning the application of the cladding swelling and rupture models for loss of coolant accident analysis.

Our NSSS supplier, General Electric, maintains that the current analytical models described in "GE Company Analytical Model for Loss of Coolant Analysis in Accordance with 10CFR50 Appendix K" (NEDE-20566-P) and its amendments, con-servatively bound the clad swelling and rupture concerns of NUREG-0630. The schedule for completion of the Perry unique ECCS performance analysis is September 1982. In the interim, any significant changes in the acceptance criteria for the evaluation models, in accordance with Appendix K requirements, could be incorporated before the Perry analysis is complete.

If you require further information, please let us know.

Very truly yours, E El -

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Dalwyn J,. Davidson Vice President System Engineering and Construction DRD:kas t:

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