ML20062F826

Responds to 781011 Memo Requesting Quantitative Comparison of Advantages Provided by Addl Relief Valves for Subj Facil. Forwards Memo Which Finds Enhanced Cooldown Is Worthwhile

ML20062F826
Person / Time
Site:	Davis Besse
Issue date:	12/15/1978
From:	Crocker L Office of Nuclear Reactor Regulation
To:	Fraley R Advisory Committee on Reactor Safeguards
Shared Package
ML20062F830	List: ML20062F826 ML20062F834 ML20062F839
References
NUDOCS 7812210167
Download: ML20062F826 (1)

Text

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• • December 15, 1978 MEMORA.';DUM FOR: Raymond F. Fraley, Executive Director Advisory Cermittee on Reactor Safeguards 7

FROM: L. P. Crocker

.' Technical Assistant to the Director Division of Project Management

SUBJECT:

SAFETY IMPLICATIO!!S OF ADDITI0f:AL STEAM RELIEF

'.'AL'!ES FOR CA'!!S SESSE 2 A!!D 3 .

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Your memorandum of October 11, 1978, subject as above, requested that the 9 staff provide a quantitative comparison of the advantages provided by additional relief capacity versus the disadvantages of added relief valves for Davis Besse 2 and 3.

1 The attached memorandum to me from Roger Mattson provides the comparison

! requested by your memorandum. On balance, the staff feels that the

.M enhanced cooldown capability provided by the additional valves out-

t. , weighs any possible negative impact of valve installation.

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- L. P. Crocker Tachnical Assistant to the Director h~

" - Division of Project Management -

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Enclosure:

F.

As Stated ', . .

7 L

2 cc: w/o encl. ,-

.. . H. Denton G. Mazetis -

N. E. Case M. Ruben ~

b R. Boyd R. Benedict D. Vassallo

i. R. Mattson

. R. Tedesco ,

I D. Ross T. Novak S. Israel ,

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,' 7812210ICo]

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