ML19339B114

Application for Amend of License NPF-7,changing Tech Spec 4.4.6.2.2 to Require Leak Testing of Pressure Isolation Valves Prior to Entering Mode 2.Class III Fee Encl

ML19339B114
Person / Time
Site:	North Anna
Issue date:	11/04/1980
From:	Ferguson J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton, Youngblood B Office of Nuclear Reactor Regulation
Shared Package
ML19339B115	List: ML19339B114 ML19339B121
References
888, NUDOCS 8011060310
Download: ML19339B114 (3)

Text

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VluGINIA ELiecruic Axn Pown:n Coni Axy , y;;m:::c:4 Iticinwon ti,Vinonn ia unub Eco st 5 f.1 9 59 November 4, 1980

"'I OO CDi' tiaaN SERVICES CMCH Mr. Ilarold R. Denton, Director Serial No. 888 Office of Nuclear Reactor Regulation N0/WRM:ms Attn: Mr. B. Joe YoungblooJ, Chief Docket No. 50-339 Licensing Branch No. 1 License No. NPF-7 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Dear Mr. Denton:

AMENDMENT TO OPERATING LICENSE NPF-7 NORTil ANNA POWER STATION UNIT NO. 2 PROPOSED TECHNICAL SPECIFICATION CllANGE Pursuant to 10 CFR 50.90, the Virginia Electric and Power Company requests an amendment, in the form cf changes to the Technical Specifications, to Operat-ing License No. NPF-7 for North Anna Power Station Unit No. 2. The proposed change is enclosed.

The existing Specification 4.4.6.2.2 requires leakage testing of the Reactor Coolant System pressure isolation valves specified in Table 3.4-1 prior to entry into MODE 4 following a plant shutdown of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> duration or longer, providing leakage testing has not been performed in the previous nine months.

The proposed change is to require leakage testing of the specified pressure isolation valves prior to entering MODE 2 rather than prior to entering MODE 4.

All the isolation valves referenced in Table 3.4-1, with the exception of the Residual llea t Removal valves, are Type C leak tested each refueling. While this test provides assurance that the valves are not leaking when pressurized to 45 psi with air, the best method to insure that a leak rate is within the specified limit is to measure the leakage at functional pressure using high pressure water.

The proposed change to Specification 4.4.6.2.2 to require leak testing of the pressure isolation valves prior to entering MODE 2 will allow testing in all lower modes and will improve the accuracy of the leakage measurements since measuring the leak rate of the pressure isolation valves at actual functional pressure provides the most accurate data and no correction factor is required.

8011060310 f

Mr. Harold R. Denton 2 l Vauotm EircTunc un Powru Comu to 1 This request has been reviewed and approved by the Station Nuclear Safety and Operating Committee and the System Nuclear Safety and Operating Committee. It has been determined that this request does not involve an unreviewed safety question.

We have evaluated this request in accordance with the criteria in 10 CFR 170.22. Since this request. Involves a safety issue which the staff should be able to determine does not represent a significant hazards consideration, a Class III license amendment fee is required. A voucher check in the amount of

$4,000.00 is enclosed in payment of the required fee, s On November 1, 1980, North Anna Unit 2 began a scheduled outage of approxi-mately three weeks duration to implement fire protection modifications.

The estimated startup date following this outage is November 22, 1980. Since approval of this request is required to startup the plant following this outage, we would appreciate your prompt review of this request.

Very truly yours, UV~

J. H. Ferguson Executive Vice President Power Attachments:

1. Proposed Technical Specification Change

2. Voucher Check No.44008 for $4,000.00 cc: Mr. James P. O'Reilly, Director Office of Inspection and Enforcement Region II I

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i COMMONWEALTH OF VIRGINIA )

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CITY OF RICHMOND )

Before me, a Notary Public, in and for the City and Common-wealth aforesaid, today personally appeared J. H. Ferguson, who being duly sworn, made oath and said (1) that he is Executive Vice President-Power of the Virginia Electric and Power Company, (2) that he is duly authorized to execute and file the foregoing Amendment in behalf of 1 that Company, and (3) that the statements in the Amendment are true I to the best of his knowledge and belief.

Given under my hand and notarial seal this day of Nnm ,J <m , e.

My Comission expires S M utetw lk, l9D .

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