ML18152B234

Application for Amends to Licenses DPR-32 & DPR-37, Increasing Requirements on Operability for Auxiliary Feedwater Pumps on Opposite Unit to Two Pumps Operable.Fee Paid

ML18152B234
Person / Time
Site:	Surry
Issue date:	10/11/1988
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
Shared Package
ML18152A148	List: ML18152A147 ML18152A149 ML18152B234
References
88-455, NUDOCS 8810180006
Download: ML18152B234 (3)

Text

e e VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 October 11, 1988 United States Nuclear Regulatory Commission Serial No.88-455 Attention: Document Control Desk* NO/JDH/NAS:vlh Washington, D. C. 20555 Docket Nos. 50-280 50-281 License Nos. DPR-32 DPR-37 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS I AND 2 PROPOSED TECHNICAL SPECIFICATION CHANGES AUXILIARY FEEDWATER CROSS-CONNECT CAPABILITY Pursuant to 10 CFR 50.90, the Virginia Electric and Power Company requests amendments, in the form of changes to the Technical Specifications, to Facility Operating Licenses DPR-32 and DPR-37 for Surry Power Station Units 1 and 2, respectively. The proposed changes, which are presented in Attachment 1, serve to impose added requirements on the operability of the Auxiliary Feedwater System of a unit when it is in a shutdown condition ..

On July 30, 1987, Virginia Electric and Power Company informed the NRC, via Surry Licensee Event Report 87-14, of an apparent discrepancy between the safety analyses presented in the UFSAR and the requirements of the Technical Specifications. As we discussed with the Staff (Mr. C. Patel, et. al.) on September 22, 1987, this discrepancy was found to result in the potential for inadequate auxiliary feedwater fl ow vi a the unit-to-unit cross-connect for certain events. The events in question involve high energy line breaks for a set of conditions which are of low probability but allowable under the current Specifications. These scenarios are described in the attached discussion of proposed changes.

The proposed changes address this discrepancy by increasing the requirements for auxiliary feedwater pumps on the opposite unit from "one pump available" (automatic initiation instrumentation and emergency power source not required) to "two pumps operable" (excluding automatic initiation instrumentation). The specifications provide for limited duration outages of this equipment to allow for routine maintenance. The proposed allowed outage times have been justified using probabilistic risk assessment techniques. The supporting discussion and safety evaluation of the proposed changes are provided in ~ r-J .

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Th4s request has been reviewed by the Station Nuclear Safety and Operating Committee and the Safety Evaluation and Control staff. It has been determined that the proposed change does not create an unrevi ewed safety question as defined in 10 CFR 50. 59 or i nvo 1ve a significant hazards cons i de ration as defined in 10 CFR 50.92. Our basis for determining that no significant hazards consideration exists is contained in Attachment 2.

We have evaluated this request in accordance with the criteria in 10 CFR 170.

A voucher check in the amount of $150.00 is enclosed as an application fee.

Nuclear Attachments

1. Proposed Technical Specification Change

2. Discussion of Proposed Change

3. Application Fee cc: U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N. W.

Suite 2900 Atlanta, Georgia 30323 Mr. Chandu P. Patel NRC Surry Project Manager PWR Project Directorate No. 2 Division of PWR Licensing - I/II Mr. W. E. Holland NRC Senior Resident Inspector Surry Power Station Commissioner Department of Health Room 400 109 Governor Street Richmond, Virginia 23219

1. . . .

e COMMONWEALTH OF VIRGINIA)

)

COUNTY OF HENRICO )

The foregoing document was acknowledged before me, in and for the County and Commonwealth aforesaid, today by W. R. Cartwright who is Vice President -

Nuclear, of Virginia Electric and Power Company. 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.

Acknowledg~d before me this _/_j__ day of c::?~ , 19 .8.8__.

My Commission expires: ~~ ZS , 19 .'lL__ .

(SEAL)

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