ML20137Q956
| ML20137Q956 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 01/31/1986 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Muller D Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8602070139 | |
| Download: ML20137Q956 (2) | |
Text
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PHILADELPHI A ELECTRIC COM PANY 23ol M ARKET STREET P.O. BOX 8699 PHILADELPHI A PA.19101 SHIELDS L. D ALTROFF ELacta C PM CTION January 31, 1986 Docket Nos. 50-277 50-278 Mr. Daniel R. Muller BWR Project Directorate #2 Division of BWR Licensing U.S. Nuclear Regulatory Commission Washing ton, D.C.
20555
SUBJECT:
Peach Bottom Atomic Power Station Main Condenser Of fgas System REFERENCE :
License Amendment Application dated May 23, 1985
Dear Mr. Muller:
This letter responds to the NRC request for additional information regarding the design of the new offgas system installed on Peach Bottom Unit 2.
The request was received in a telecon from the NRR Project Manager and was prompted by the NRC's review of the referenced application.
The application would revise the Limiting Condition for Operation for the hydrogen concentration in the offgas system and associated hydrogen analyzers, based on the design of the new offgas system.
Specifically, the NRC requested confirmation as to the hydrogen detonation resistance of the new offgas system.
All portions of the Unit 2 main condenser offgas system are designed to withstand the effects of a hydrogen detonation without breach of the pressure boundary.
Piping and components in the offgas stream have been analyzed in accordance with the methodology described in Appendix C of ANSI /ANS-55.4-1979.
This methodology has been demonstrated to be conservative by theoretical analysis and operating experience.
The offgas system pl.anned for Unit 3 will satisfy the same standard.
G602070139 060131 PDR ADOCK 05000270 l
P POR g
Mr. Daniel R. Muller January 31, 1986 Page 2 Should you have any questions regarding this submittal, please do not hesitate to contact us.
Very truly yours, r
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Attachment cc:
T. P. Johnson, Resident Site Inspector
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