ML20105A619
| ML20105A619 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 09/08/1992 |
| From: | Jackson M COMMONWEALTH EDISON CO. |
| To: | Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| RTR-REGGD-01.097, RTR-REGGD-1.097 NUDOCS 9209170122 | |
| Download: ML20105A619 (2) | |
Text
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w-September 8,..,92 Mr. Thomas Murley, Director Office of Nuclear Regulatory Regulation U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attn:
Document Control Desk
Subject:
NRC Safety Evaluation Regar 1g the Use of Category 3 Instrumentation for Accumula v. Level and Pressure Regulatory Guide 1.97 Compliance Byron Station Units 1 and 2 NRC Docket Numbers 50 454 and 50 455 Braidwood Station Units 1 and 2 NRC Docket Number 50 4056 and 50-4057
Reference:
(a)
S. C. Hunsader letter to T. E. Muriay dated September 1,1987 (b)
NRC Safety Evaluation to T. J. Kovach from R. M. Pulsifier dated June 23,1997 The purpose of this letter is to confirm receipt of your Safety Evaluation approving the use of Category 3 !nstrumentation for accumulator level and pressure and to finalize the Commonwealth Edison (CECO) commitment regarding these instruments.
Reference letter (a) provided the Commonwealth Edison Compliance report to Regulatory Guide 1.97, revision 3. In this report CECO provided justification for compilance with the regulatory guide based on an exception request to reduce the qualifications from a category 2 to a category 3 classification. The NRC staff has reviewed the bases for these exceptions and has concluded that these instruments do not perform any post accident safety function and its nualification can be reduced to Category 3.
Based on the reference (b) Safety Evaluation approving the use of the Category 3 classification, the Byron and Braidwood accumulator level and pressure instruments are in compliance with the regulatory guidance and no further action is required.
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Dr. Thomas E. Murley 2-September 8,1992 Please direct any questions you may have concerning this response to this office.
I espectfully, f
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[hLLL Mb$(vD f rela A. lac son Nuclear Licensinb-Administrator Generic issues cc: A. B. Davis, Regional Administrator, Rill R. Darrett, Project Directorato, NRR J. Hickman, PM-NRR R. Pulsifier, PM.NRR S. DuPont, Braidwood SRI W. Kropp, Byron SRI i
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