ML19308B011

Forwards Proposed Tech Specs Re Limitations of Containment Integrated Leakage Rate & Containment Leakage Tests

ML19308B011
Person / Time
Site:	Oconee
Issue date:	11/30/1976
From:	Parker W DUKE POWER CO.
To:	Rusche B Office of Nuclear Reactor Regulation
Shared Package
ML19308B012	List: ML19308B011 ML19308B015
References
NUDOCS 7912120769
Download: ML19308B011 (4)

Text

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,, cn Mr. Benard C. Rusche, Director /

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y l Re: Oconee Nuclear Station 9 M Y Docket Nos. 50-269, -270, -287 N O

Dear Sir:

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In an August 4, 1975 letter from Mr. Karl R. Coller, NRC/0NRR, it was stated that the requirements of 10CFR50, Appendix J " Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors" had been published on February 14, 1973. Since many nuclear plants had received either an operating license or their containments had reached an advanced stage of design or con-struction prior to the issuance of Appendix J, it is possible that they may not be in full compliance with Appendix J, even though they are adhering to the provisions of their Technical Specifications.

In our review of the Oconee Nuclear Station in response to the August 14, 1975 letter, the only discrepancy identified was the testing of the personnel and emergency hatches. A request for exemption to the provisions of 10CFR50, Appendix J was requested in that regard by our letter dated September 5, 1975.

Subsequent review of the Oconee Nuclear Station has revealed that certain additional penetrations may be construed to require Type C testing by the regu)ations. Accordingly, pursuant to the provisions of 10CFR50, 550.90 the attached Technical Specification revisions are requested to assure the proper implementation of 10CFR50, Appendix J at Oconee. Limits on containment leakage have been moved to Specification 3.6 which is a Limiting Condition for operation. Specification 4.4 " Reactor Building" has also been rewritten to more closely agree with the requirements of 10CFR50, Appendix J.

Since the Oconee Nuclear Station was virtually complete at the time of publication of the 10CFR50, Appendix J, there are penetrations in which full compliance with Appendix J is not possible. Specifically, penetrations exist in which Type C tests cannot be performed due to the absence of test connections or isolation valves. Other penetrations must be tested in a direction opposite to that which would be seen during an accident. A listing of pe.atrations which cannot be tested, or can only be tested in the reverse direction is shown in Table 4.4-1 of the proposed Technical Specification revision. Pursuant to 10CFR50, 150.12 exemptions are requested from the provisions of 10CFR50, Appendix J in these cases. These penetrations are now tested in conjunction with the integrated leak rate test of the Reactor 1- - ,

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't r . i'en.i ni C. 1hische l'a >;e .' -

ovember 30, 1976 Building. Modifications necessary to permit testing of these penetrations on a refueling basis are not considered to provide any significant improve--

ment in the effectiveness of the containment system or to increase the ptutection now provided for the public health and safety.

Very truly yours, t

p h4_ 40 . L .

William O. Parker, Jr.

MST:ge Attachment

it r . I;en.mi ' C. Rusche l' i ge 3 November 30; 1976 i

. WILLIA.M 0. PARKER, JR. , being duly sworn, states that he is Vice President of Duke Power Company; that he is authorized on the part of said Company to sign and file with the Nuclear Regulatory Comnission this request Z'r amendment of i the Oconee Nuclear Station Technical Specifications, Appendix A t' Facility

] Operating Licenses DPR-38, -47 and DPR- 55; and that all statements and matters i set forth therein are true and correct to the best of his knowledge.

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, O w.L N W ~

} William O. Parker, Jr.V Vice President i

3 ATTEST:

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Lewis F. Camp, Jr. -

-Assistant Secretary (Seal) j Subscribed and sworn to before me this 30th day of November, 1976.

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Notary Public (Notarial Seal)

Y My Commission Expl.res:

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