ML19347D000

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Forwards Revised Tech Specs Confirming Basis for Loss of Flow Trip to Prevent DNB in Event of Loss of One or More Reactor Coolant Pump.Revised Tech Specs Reflect New DNBR Limit of 1.34
ML19347D000
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 03/04/1981
From: Clayton F
ALABAMA POWER CO.
To: Schwencer A, Varga S
Office of Nuclear Reactor Regulation
Shared Package
ML19347D001 List:
References
NUDOCS 8103100498
Download: ML19347D000 (1)


Text

Alabama Power Company 600 North 18tn street Post Office Box 2641 Birmmgnam. Alabama 35291 Te4ephone 205 250-1000 F. L CLAYTON, JR. m senior Vice President Alabama Power March 4,1981 " "'" *""##

Docket Nos. 50-348 50-364 o A S  %

Director, Nuclear Reactor Regulation U. S. Nuclear Regulatory Comission # , , i j Washington, D. C. 20555 2 l'IAR09 p81m r as,km,% .g Attention: Mr. S. A. Varga Mr. A. T. Schwencer s //

REF: APC0 Letter to NRC dated 1/5/81, st.

Clayton to Varga JOSEPH M. FARLEY NUCLEAR PLANT - UNITS 1 AND 2 TECHNICAL SPECIFICATIONS Gentlemen:

As requested by the NRC staff, Alabama Power Company hereby submits the enclosed confirmation of the basis for the loss of flow trip to prevent DNB in the event of a loss of one or more reactor coolant pumps. The minimum DNBR for the loss of flow transients is limited to 1.34 which is consistent with the margin used to offset the rod bow penalty in the referenced Unit 1 proposed technical specification change. The same margin is currently used in the Unit 2 technical specifications. Therefore, both the Unit 1 and 2 Technical Specifications Bases should be modified as indicated in the enclosure to reflect this new DNBR limit.

Should you have any questions, please advise.

Yours very truly, 0Ae bd/ '

F. L. Clayton, Jr.

FLCjr/RWS:rt Enclosure cc: Mr. R. A. Thomas Mr. G. F. Trowbridge Mr. E. A. Reeves (w/ enclosure)

Mr. L. L. Kintner (w/ enclosure)

Mr. D. J. Vito (w/ enclosure)

Mr. W. H. Bradford (w/ enclosure)

(30%

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