ML20134E368
| ML20134E368 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 08/14/1985 |
| From: | Ainger K COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 0504K, 504K, NUDOCS 8508200175 | |
| Download: ML20134E368 (1) | |
Text
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N Commonwealth Edison
/ one First Hahonal Plaza. Ch!cago, lihnois
( C D Address Reply to. Post Office Box 767
\\
Chicago, Illinois 60690 August 14, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Byron Station Unit 1 Elimination of Postulated Pipe Breaks in the RCS Primary Loops NRC Docket No. 50-454 References (a): September 17, 1984 letter from E. D. Swartz to H. R. Denton (b): June 28, 1985 letter from K. A. Ainger to H. R. Denton
Dear Mr. Denton:
References (a) and (b) provided the technical justification and value impact analysis for applying the leak-before-break concept to the reactor coolant system primary loops at Byron and Braidwood stations. Based on that information, Commonwealth Edison requested a partial exemption from General Design Criterion (GDC) 4 be granted for the first two fuel cycles of each Byron and Braidwood unit.
Since Byron Unit 1 apparently stands on a different footing because it is operating, Commonwealth Edison is withdrawing, without prejudice, the request for a partial exemption from GDC-4 for this unit.
Please address any quest' ions regarding this matter to this office.
Very truly yours, Ca K. A. Ainger Nuclear Licensing Administrator 1m cc: Byron Resident Inspector 0504K 5 8500 0508200ga 54 goo /
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