ML19296C469

Responds to NRC 791109 & 27 Ltrs Requesting Confirmation WVY-30-8 (Odid) of GE Info Re Fuel Swelling & Ruptures. Models Applied by GE Are Conservately Equivalent to NRC Model

ML19296C469
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	01/08/1980
From:	Vandenburgh D VERMONT YANKEE NUCLEAR POWER CORP.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
NUDOCS 8002260228
Download: ML19296C469 (2)

Text

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VERMONT Y AN KEE NUCLEAR POWER COR POR ATI( >N

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SEVENTY SEVEN GROVE STREET

. . .1 RL'TL AND VER M O NT 05701

=Ertv To WVY 80-8 ENGINEERING OFFICE TURNPIK E RO A O WESTBoRO. M ASS ACHUSETT S O f S E 1 T E LEPHON E 6 '7 3e 6 . 'i January 8, 1980 United States Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Office of Nuclear Reactor Regulation Darrell G. Eisenhut

Reference:

(1) License No. DPR-28 (Docket No. 50-271).

(2) NRC letter from D.' G. Eisenhut to All Operating Light Water Reactors, dated November 9, 1979.

(3) NRC letter from D. G. Eisenhut to All Operating Light Water Reactors, dated November 27, 1979.

Dear Sir:

This letter is in response to your letters, References 2 and 3, requesting confirmation that the information provided to you on our behalf by GE regarding fuel swelling and rupture is correct. Since Vermont Yankee is rurrently operating on the basis of analyses performed by General Electric co., the following discussion pertains to the use of GE's licensed models to VY operation.

Via both your letters, References 2 and 3, and our correspondence with GE, we are aware of the effort which GE has applied toward this issue. It is our understanding, based on our communications with GE, that over the operating range of interest pertinent to Vermont Yankee the models applied by CE and approved by the NRC are of a conservative level equivalent to the NRC model.

Over the next 1 1/2 years, YAEC intends to validate, independently of GE, Vermont Yankee's response to LOCA events. Implicit in this work will be a consideration of fuel swelling and rupture effects.

We trust this information is satisfactory; however, if,you have any questions, please contact us.

Respectfully submitted, VERMONT YANKEE NUCLEAR POWER CORPORATION

<drN). 9 D. E. Vandenburgh

, Vice President DEV/kaf 8002 260 & 8

... January 8, 1980

,' U.S. Nuclear Regulatory Commission Page 2 Of fice of Nuclear Reactor Regulation y' Attn:

COMMONWEALTH OF MASSACHUSETTS)

)ss.

COUNTY OF WORCESTER )

Then personally appeard before me, D. E. Vandenburgh, who being duly sworn did state that he is a Vice President of Vermont Yankee Nuclear Power Corporation, in the that he is duly authorized to execute and file the foregoing request name and on the behalf of Vermont Yankee Nuclear Power Corporation, and that the statements therein are true to the best of his knowledge and belief.

A w~ 9 Armand R. Soucy Notary Public My Commission Expires September 7, 1984 t