ML20133A929
| ML20133A929 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 12/12/1996 |
| From: | Stanley H COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-95-07, GL-95-7, NUDOCS 9701020176 | |
| Download: ML20133A929 (1) | |
Text
G)mmonwealth litison Company tiraidwood Generating Mation Route *l, Ilox H 1 liraceville, 11.60107-9619 Tel 8is-iss 280t December 12,1996 i
U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Attention: Document Control Desk
Subject:
Braidwood Station Units 1 and 2 Response to NRC Request For Additional Information (RAI)-Generic Letter 95-07,
" Pressure Locking and Thennal Binding of Safety Related Power-Operated Gate Valves" NRC Docket Nos. 50-456 and 50-457
Reference:
Letter from Peter L. Piet to U.S. Nuclear Regulatory Commission, dated July 5,1996, transmitting the Response to a NRC Request For Additional Infonnatior pertaining to Generic Letter 95-07.
In Generic Letter 95-07. The NRC requested licensees ensure that safety related power operated gate valves susceptible to pressure locking or thennal binding are capable of performing their safety function are within the current licensing bases of the facility.
In the referenced letter, Commonwealth Edison provided a response to the NRC request for additional information (RAI) regarding sarious aspects of the 180 aay response to Generic Latter 95-07.
The Braidwood response to NRC question 1 indicated that a design change was being considered for the 1(2)RH8716A valves, however, evahiations to determine the appropriateness of this design were still in progress. These evaluations are now complete and a change (hole drilled in one side of the disc) has been designed for these valves. This design change is currently scheduled for installation during Braidwood refueling outages AIR 06 (Spring 1997)and A2R06 (Fall 1997).
If there are any questions required on this matter, please contact this office.
fitY cA T 4 17 sene Stanley j/
Station Vice President Braidwood Station norn,moc a, cc:
A. B. Beach, Regional Administrator - Region 111. NRC C. J. Phillips, Sr. Resident inspector - Braidwood Station R. R. Assa, Project Manager, NRC Frank Niziotek, Division of Enginec e-Office of Nuclear Safety - IDNS dh C
T. Simpkin, Regulatory Assurance Supervisor, Braidwood Station Document Control Desk - Downers Grove Marshall Hurst Braidwood Station 9701020176 961212 PDR ADOCK 05000456 PDR p
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