ML18153A308
| ML18153A308 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 05/29/1998 |
| From: | Edison G NRC (Affiliation Not Assigned) |
| To: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| References | |
| REF-GTECI-*****, REF-GTECI-NI, TASK-*****, TASK-OR NUDOCS 9806020294 | |
| Download: ML18153A308 (3) | |
Text
...........
Mr. J.P. O'Hanlon A
Senior Vice President - taear Virginia Electric and Power Company 5000 Dominion Blvd.
- Glen Allen, Virginia 23060 May 29, 1998 -
SUBJECT:
SURRY NUCLEAR POWER STATION, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION RE: GENERIC SAFETY ISSUE (GSI 165)
Dear Mr. O'Hanlon:
The NRC Office of Nuclear Regulatory Research (RES) is currently in the process of resolving Generic Safety Issue (GSI) 165, "Spring-Actuated Safety and Relief Valve Reliability." GSI 165 addresses whether failures of spring-actuated relief valves in safety-related support systems have the potential to cause substantial increases in plant core damage frequency (CDF), and what, if any, generic action may be appropriate. To resolve this issue RES is using available
- probabilistic risk assessments to study the effects of these valve failures on the CDF for generic plant types. In order to complete its analyses, RES has determined additional valve data for the Surry Nuclear Power Station is needed. This request relates to the configuration and design of certain valves as they currently exist. The Enclosure provides the details of the requested information.
The staff requests a response to the enclosed questions within 60 days of receipt of this letter. -
If this is not achievable, VEPCO should notify the staff and propose a date for submittal of a response. Should you have any questions related to this letter or the enclosed information requested, please contact me at (301) 415-1448.
Docket Nos. 50-280 and 50-281
Enclosure:
As stated cc w/encl: See next page Distribution
---o*ocket File PUBLIC PD 11-1 Rdg LPlisco, RII JZwolinski OGC OFFICE PM:PDII-NAME GEdison DATE COPY ACRS RWessman GHammer
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9806020294 980529 PDR ADOCK 05000280 P
- PDR Sincerely, (Original Signed By)
Gordon E. Edison, Sr. Project Manager Project Directorate 11-1 Division of Reactor Projects.- 1/11 Office of Nuclear Reactor Regulation OGormley
- J_
Requested Data for Surry Plant Surry Plant Query in support of Deterministic Analysis.
The P&ID/lmportant System search yields the following request for data:
Item Drawing Valve i.d.
Manufacturer Model Orifice Set size*
pressure LPI pump 11448-CBM-1-SIRV-* *:
discharge 089A-3 sh 2/3 1845A,.
SRVs LPI pump 11448-CBM-1-SI RV-discharge 089A-3 sh 2/3 18458 SRVs LPI pump 11448-CBM-1-SI RV-discharge 089A-3 sh 2/3 1845C SRVs EOG air tank 11448-FB-1-EG RV SRV 046Ash 1/3 12 e
EOG air tank 11448-FB-1-EG-3 isolution valve 046A sh 1/3
- Orifice size or rated flow at rated pressure.
ENCLOSURE
I
'. " ),
~
e Mr. J. P. O'Hanlon Virginia Electric and Power Company cc:
Mr. Michael W. Maupin, Esq.
Hunton and Williams Riverfront Plaza, East Tower 951 E. Byrd Street Richmond, Virginia 23219 Mr. David Christian, Manager Surry Power Station Virginia Electric and Power Company 5570 Hog Island Road Surry, Virginia 23883 Senior Resident Inspector Surry Power Station U.S. Nuclear Regulatory Commission 5850 Hog Island Road Surry, Virginia 23883 Chairman Board of Supervisors of Surry County Surry County Courthouse Surry, Virginia 23683 Dr. W. T. Lough Virginia State Corporation Commission Division of Energy Regulation P. 0. Box 1197 Richmond, Virginia 23209 Regional Administrator, Region II U. S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303 Robert B. Strobe, M.D., M.P.H.
State Health Commissioner Office of the Commissioner Virginia Department of Health P.O. 3ox 2448 Richmond, Virginia 23218 Surry Power Station Office of the Attorney General Commonwealth of Virginia 900 East Main Street Richmond, Virginia 23219 Mr. J. H. McCarthy, Manager Nuclear Licensing & Operations.
Support Innsbrook Technical Center Virginia Electric and Power Company 5000 Dominion Blvd.
Glen Allen, Virginia 23060 Mr. R. C. Haag U.S. Nuclear Regulatory Commission Atlanta Federal Center 61 Forsyth St., SW, Suite 23T85 Atlanta, Georgia 30303 Mr. W. R. Matthews, Manager North Anna Power Station P. 0. Box402 Mineral, Virginia 23117