ML20072H130
| ML20072H130 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna, 05000000 |
| Issue date: | 06/08/1983 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| REF-SSINS-6820, REF-SSINS-SSINS-6 164, IEB-83-03, IEB-83-3, NUDOCS 8306290331 | |
| Download: ML20072H130 (3) | |
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VINGINIA ELucTHIc ann Powna COMI*ANY NO Ricitxoxn,VinoINIA 23261 j
CD W. L. STEWART k * *.
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June 8, 1983 q.;
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v c0 Mr. James P. O'Reilly Serial No. 164 Regional Administrator N0/RMT:acm Region II Docket Nos. 50-280 U. S. Nticlear Regulatory Commission 50-281 101 Marietta Street, Suite 2900 50-338 Atlanta, Georgia 30303 50-339 License Nos. DPR-32 DPR-37 NPF-4 NPF-7
Dear Sir:
Subject:
IE Bulletin No. 83-03: Check Valve Failures in Raw Water Cooling Systems of Diesel Generators We have the subject Bulletin and are providing, as an enclosure to this letter, those reports requested by required action item number 4.
The information contained in the enclosure to this letter is true and accurate to the best of my knowledge and belief.
Very truly your g,
i W. L. Stewar Enclosure cc:
U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C. 20555 Mr. M. B. Shymlock Resident Inspector North Anna Power Station Mr. D. F. Johnson Resident Inspector Surry Power Station TE I) \\ \\
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-0"'ricia, Copy r306290331 830608 PDR ADOCK 05000200
Enclosure Serial No. 164 RESPONSE TO IEB 83-03 SURRY POWER STATION In response to IEB 83-03 Surry Power Station does not have service water or any outside water supplies (fire water or domestic water) to its three (3)
Emergency Diesel Generators (EDGs).
All three run with a closed loop water system cooled by ambient air.
Item One (1)
The Station Pump and Valve In-Service Test Program required by Section XI of the ASME Boiler and Pressure Vessel Code contains no valves in the Emergency Diesel Generator cooling water system.
Additionally there are no valves in the flow path of cooling water.for the EDG.
This is due to the fact that the cooling system is a closed loop water system cooled by an air to water radiator.
Item Two (2)
No mcdifications are needed to the IST Program for the reasons stated in the response to Item One.
Item Three (3)
Not applicable - there are no valves to be tested, Item Three (3) can be considered closed.
Item Four (4)
There are no valves in the EDG Cooling System.
Item Five (5)
There are no valves in the EDG Cooling System.
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e Enclosure Sarial No. 164 IEB 83-03 NORTH ANNA POWER STATION The following information is being submitted as required by IEB 83-03, Item 1.
North Anna Power Station does not use a raw water cooling system for the purpose of diesel generator cooling.
An air to water cooling system is used, the water system being a closed loop.
Mission Duo-Chek insert check valves are incorporated into this design and to date no check valve failures have occurred. Due to the fact that no swing check valves are used in the cooling system of the North Anna diesel generators and check valves in use have exhibited no failures, the requirements of IEB 83-03 do not apply.
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