ML20135E044

Revised Application for Amends to Licenses NPF-4 & NPF-7, Changing Tech Specs to Revise Limiting Condition of Operation & Surveillance Requirements for Reactor Trip Bypass Breakers & Undervoltage Trip Logic

ML20135E044
Person / Time
Site:	North Anna
Issue date:	09/09/1985
From:	Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Butcher E, Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20135E047	List: ML20135E044 ML20135E077
References
85-228A, GL-83-28, GL-85-09, GL-85-9, NUDOCS 8509160266
Download: ML20135E044 (4)

Text

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f VutoixtA ELucruic Axu Pownu Cossauxv nien>toxn.Vinoixir ununt W.t. STEWART

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NorLaan OrsmAvions September 9, 1985 Mr. Harold R. Denton, Director Serial No. 85-228A Office of Nuclear Reactor Regulation N0/ETS:acm Atta: Mr. Edward J. Butcher, Acting Chief Docket Nos. 50-338 Operating Reactors Branch No. 3 50-339 Division of Licensing License Nos. NPF-4 U. S. Nuclear Regulatory Commission NPF-7 Washington, D. C. 20555 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT NOS. 1 AND 2 PROPOSED TECHNICAL SPECIFICATION CHANGES VEPCO letter, Serial NO.85-228, dated April 12, 1985, submitted a request I

for amendment, in the form of changes to the Technical Specifications to Operating License Nos. NPF-4 and NPF-7 for the North Anna Power Station Units No. 1 and 2.

The proposed Technical Specification changes are to revise the Limiting Condition for Operation (LCO) and surveillance requirements for the reactor trip bypass breakers, undervoltage trip logic and shunt trip logic. These proposed changes are in accordance with Items 10 and 13 of the NRC review of Item 4.3 of Generic Letter 83-28, dated July 24, 1984.

This submittal modifies the change request to include the subsequent NRC staff's guidance provided in Generic Letter 85-09, " Technical Specifications for Generic Letter 83-28, Item 4.3," for the Limiting Condition of Operation and surveillance requirements for the reactor trip and bypass breakers, undervoltage and shunt trip logic and the manual scram switches. The required modifications to be made for improved reliability of the reactor trip system have not Leen implemented for North Anna Unit No. 1. These modifications are scheduled to be installed during the next outage of sufficient duration which is expected to begin in November, 1985. The proposed Technical Specification changes for Unit 1 cannot be implemented until the modifications for North Anna Unit No. I have been completed. The modifications for North Anna Unit No. 2 have already been implemented.

The supplemental proposed changes to the Technical Specifications for Unit 1 and 2 are included as Enclosure 1 and 2. The safety evaluation is included in Enclosure 3. The proposed changes and the safety evaluation have been reviewed and approved by the Station Nuclear Safety and Operating Committee and the Safety Evaluation and Control staff. It has been determined that this submittal request does not pose a significant 00

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Vtuotx4 EtzcTaic axo Powru COMPANY To Mr. Harold R. Denton hazard consideration as defined in 10 CFR 50.92 or an unreviewed safety question as defined in 10 CFR 50.59.

Since this information supplements our previous submittal, which included the appropriate application fee, no additional application fee is includec.

If you have any questions, or need additional information to process this request, please contact us immediately.

Very truly yours,

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W. L. Stewart Enclosures (1) Proposed Technical Specification Change - Unit 1 (2) Proposed Technical Specification Change - Unit 2 (3) Safety Evaluation for Proposed Changes cc: Dr. J. Nelson Grace Regional Administrator Region II Mr. M. W. Branch NRC Resident Inspector North Anna Power Station l

I-l Mr. Charles Price i

Department of He Ith j 109 Governor Street j Richmond, Virginia 23219

COMMONWEALTH OF VIRGINIA )

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CITY OF RICHMOND )

The foregoing document was acknowledged before me, in and for the City and Commonwealth aforesaid, today by W. L. Stewart who is Vice President -

Nuclear Operations, of Virginia Power. He is duly authorized to execute and file the foregoing document in behalf of that Company, and the statements in the document are true to the best of his knowledge and belief.

Acknowledged before ne this  % day of 64 Ph< dut . 19 F3 .

My Commission expires: Edhw W , 19 i\ .

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