ML19211D369

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Requests 20-month Extension of Current Program for Inservice Testing of Pumps & Valves.Extension Should Be Considered w/781102 Request.Forwards Page 18 of Original Request. Submits List of Commitments & Resolutions
ML19211D369
Person / Time
Site: North Anna Dominion icon.png
Issue date: 01/15/1980
From: Stallings C
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: Schwencer A
Office of Nuclear Reactor Regulation
References
033, 33, NUDOCS 8001180282
Download: ML19211D369 (4)


Text

.-VIHOINTA ELecTurc Axn Powsu Co>trAxy RzcuxonnNr2aoxnzA cous January 15, 1980 Mr. Harold R. Denton, Director Serial No. 033 Office of Nuclear Reactor Regulation P0/TJW Attn: Mr. A. Schwencer, Chief LQA/ESG:shs Operating Reactors Branch No. 1 Division of Operating Reactors Docket No. 50-338 U. S. Nuclear Regulatory Commission Washington, DC 20555 License No. NPF-4

Dear Mr. Denton:

INSERVICE TESTING OF PUMPS AND VALVES The current program for inservice testing of pumps and valves at North Anna Power Station, Unit No. 1, as described in our letters of August 10, 1977

/ Serial No. 052C), September 29, 1977 (Serial No. 052D), May 4, 1979 (Serial t a.328), and September 4, 1979 (Serial No. 712) will expire February 6, 1980.

We propose that, except as specified below, our existing program be extended for the next 20 month interval. This request should be considered

'th our previous request for revisions in the inservice testing program, dazed November 2,1978 (Serial No. 597), for which we are still awaiting Staf f approval.

Our letter of Septe-ber 29, 1977 (Serial No. 052D) contained several conniements. Listed below are the commitments and the resolutions.

Cornitment 1: Vepco will study the possibility of installing suction pressure gages on the Residual Heat Removal Pumps.

Rasciution:

Temporary gages will be installed on the Pesidual Heat Removal Pump suction lines when the surveillance tests are performed.

Cc = irment 2: Vepco will study the possibility of installing a recir-culation path for the Auxilisry Service Water Pump.

Resolution:

The response to this commitment was submitted to the staff in our letter dated May 4,1979 (Serial No. 328).

Monthly periodic testing of this pump commenced in July 1979.

Commitnant 3: Vepco will study the possibility of design changes to meet the intent of IWP-4 210.

Resolution:

IWP-4210 refers to gage line venting. Gages used for pump surveillance tests are equipped with vent valves so no design changes are needed to comply with IWP-4210.

1765 277 g 0 0118o GN

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.VinoNIA EtzcTaic AND POWER tOMPANY TO Mr. Harold R. Denton 2 Service Water Radiation Monitoring Sample Pumps are presently tested every 18 months. This has proven to be inadequate and we are commencing a monthly surveillance test; therefore, the testing frequency of 1-SW-P-5, 1-SW-P-6, 1-SW-P-7 and 1-SW-P-8 should be changed to at least once every 31 days.See Attachments for new service water radiation monitoring sampic pump testing frequency.

This request has been evaluated in accordance with the criteria speci-fied in 10 CFR 170.22.

Since it is based on a program previously approved by the Staff, the Staff should be able to conclude that it does not involve a significant hazards consideration. Consequently, it has been determined to be in Class III and a check for $4,000.00 is attached in payment of the re-quired fee.

Your prompt approval of this request will be appreciated.

Very truly yours,.; .~O ' ' r . t..)l O N i . y,Y C. M. Stallings Vice President-Power Supply and Production Operations Attachments:

1.Revised Page 13 2.Check for 54 000.00 s cc: Mr. James P. O'Reilly, Director Office of Inspection and Enforcement Region II 1765 278

.Attachment Page 18 of 20 (of original submittal)

SERVICE WATER RADIATION MONITORING SAMPLE PUMP Class 3 1-SW-P-5 1-SW-P-6 Recire. Spray Coolers 1-SW-P-7 (Service Water Side) 1-SW-P-8 MEASURED QUANTITIES None NOTES: 1-SW-P-5,6,7,8 will be tested at least once every 31 days.

f At least once per 18 months, each pump will be automatically started in conjunction with a test signal for Containment Depressurization Actuation.

Additionally, these pumps have a low flow alam which, during an accident, will aler. the control room operator to a low flow situation on sample flow frcm the respective flow path.

1765 279