ML20081J025

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Forwards 2,500-Lb Object Drop Analysis & Spent Fuel Rack Drop Analysis, in Response to Request for Addl Info Re Proposed Amend to Licenses NPF-4 & NPF-7
ML20081J025
Person / Time
Site: North Anna  Dominion icon.png
Issue date: 10/28/1983
From: Stewart W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Harold Denton, John Miller
Office of Nuclear Reactor Regulation
Shared Package
ML20081J028 List:
References
456A, NUDOCS 8311080243
Download: ML20081J025 (2)


Text

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e VInGINIA ELECTHIC AND Powan COMPANY Ricnwonn, VIRGINIA 20261

v. L. stawas wcI[*.5".'.","E. October 28, 1983 Mr. Harold R. Denton, Director

- Office of Nuclear Reactor Regulation Attn: Mr. James R. Miller, Chief Serial No. 456A Operating Reactors Branch No. 3 PSE&C/HSM/

. Division of Licensing Docket Nos. 50-338 U.S. Nuclear Regulatory Commission 50-339 Washington, D. C. 20555 License Nos. NPF-4 NPF-7 Gentlemen:

ADDITIONAL INFORMATION PROPOSED OPERATING LICENSE AMENDMENT NPF-4 AND NPF-7 NORTH ANNA POWER STATION UNIT NOS. 1 AND 2 In our letter of September 13,1983 (Serial No. 456), we provided answers to the NRC's requests for additional information regarding the proposed spent fuel capacity expansion. Answers to additional questions (B.2, B.4, B.7, and C.1) are enclosed with this letter. .

If you require further information on this matter, we would be pleased to meet with your staff at their convenience.

Very truly yours, W. L. Stewart Enclosure cc: Mr. James P. O'Reilly Mr. M. B. Shymlock Regional Administrator NRC Resident Inspector

. Region II North Anna Power Station U.S. Nuclear Regulatory Commission Atlanta, Georgia 30303 Af$

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s Question B .2:

Verify that the proposed neutron absorber fuel racks can withstand the drop of a 2500 pound weight from the highest possible elevation during spent fuel handling without unacceptable consequences.

Answer:

An analysis has been performed to evaluate the potential damage from I the drop of a 2500 pound object onto the neutron absorber spent '

fuel racks. The analysis shows that the dropped object will locally I deform the top of the racks upon impact; however, the structural integrity of the racks and the spent fuel pool floor will be maintained.  !

A copy of the report describing the analysis and the results is enclosed.

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