ML20078M599
| ML20078M599 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 11/28/1994 |
| From: | Schrage J COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9412020239 | |
| Download: ML20078M599 (2) | |
Text
CN Comm:nw; lth Edison I
)
1400 Opus Place
- kC}
Downers Grove, Ilhnois 60515 g
\\s November 28,1994 Office cf Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Document Control Desk
SUBJECT:
Quad Cities Station Units 1 and 2 Inservice Testing Program Update Third Ten-Year Interval Program NRC Docket Nos. 50-254 and 50-265
REFERENCES:
(a)
J.E. Dyer to D. L Farrar letter dated May 3,1994; Safety Evaluation and Technical Evaluation Report of the Inservice Testing Program Relief Requests for Pumps and Valves for Quad Cities Station, Units 1 and 2 (TAC Nos. M85762 and M85763).
(b)
ASME/ ANSI Standard OMa-1988 Part 10, Inservice Testing of Valves in Light-Water Reactor Power Plants In Reference (a), the NRC approved the third ten-year interval Inservice Testing (IST) Program for Quad Cities Station (Revision 4). This IST Program adopts the requirements of the 1986 Edition (without addenda) of the ASME Boiler and Pressure Vessel Code,Section XI.
The 1989 Edition of ASME Section XI indicates that the rules for inservice testing of valves are as specified in the ASME/ ANSI Standard OMa-1988 Part 10.
The purpose of this letter is to request approval to update the IST Program for the third ten-year interval to the requirements of ASME/ ANSI Standard OMa-1988 Part 10 for cold shutdown testing of valves. These requirements are contained in paragraphs 4.2.1.2.g and 4.3.2.2.g of OMa-1988 Part 10:
k \\nla\\quatikuna 10:I w pf 0A 09nn.-
.i ig 9412020229 94112e PDR ADOCK 05000254 P
1 U.S. NRC November 28,1994
" Valve exercising during cold shutdown shall commence within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of achieving cold shutdown, and continue until all testing is complete or the plant is ready to return to power. For extended outages, testing need not be commenced in 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> provided all valves required to be tested during cold shutdown will be tested prior to plant startup. However, it is not the intent of this Part to keep the plant in cold shutdown in order to complete cold shutdown testing."
Paragraphs 4.2.1.2.g and 4.3.2.2.g of ASME/ ANSI Standard OMa-1988 Part 10 have been endorsed by ASME Section XI, the Draft NUREG 1482, and are also approved for use at Dresden Station. These requirements will allow Comed to minimize unnecessary valve testing during unit shutdowns.
We trust that the information is satisfactory; however, should you have any questions or desire any additional information on this issue, please do not hesitate to contact this office.
Sincerely, 0
John L. Schrage Nuclear Licensing Administrator cc:
J. Martin, Regional Administrator - RIII C. Miller, Senior R.esident Inspector - Quad Cities j
R. Pulsifer, Project Manager - NRR P. Campbell, NRR Tech Staff Office of Nuclear Facility Safety - IDNS L:\\nid,quaAnna-lDil upf i