ML19250C650

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Informs That Proposed Changes to Tech Specs to Provide Second Level of Undervoltage Protection by Monitoring 13 Kv Line Not Acceptable.Design Mod & Amended Proposal Requested
ML19250C650
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 10/30/1979
From: Ippolito T
Office of Nuclear Reactor Regulation
To: Bauer E
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
Shared Package
ML19250C651 List:
References
NUDOCS 7911280540
Download: ML19250C650 (2)


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UNITED STATES 8

'j NUCLEAR REGULATORY COMMISSION 5

E WASHINGTON, D. C. 20555 o%

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October 30, 1979 Docket flo. 50-277 and 50-278 Mr. Edward G. Bauer, Jr.

Vice President and General Counsel Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101

Dear Mr. Bauer:

By our letters dated June 2, 1977 and August 8, 1979 we requested informa-tion related to undervoltage protection of safety related equipment for Peach Bottom Unit Nos. 2 and 3.

Your responses to these requests are dated December 22, 1977 and October 5,1979.

Your December 22, 1977 submittal proposed changes to the Technical Specifications to provide a second level of undervoltage protection by monitoring the 13 KV line. He have determined that this design is not acceptable.

Our basis is summarized in the enclosure.

tiemt,ers of our staffs' discussed this item by telephone on October 16, 1979. We request that you modify your design and submit an amended proposal.

Your letter dated October 5, 1979 indicated an additional 60 days is required for you to complete your analysis of power systens for effects of degraded voltage conditions. This revised schedule is acceptable to the staff. Your submittal should include an amended proposal for second level undervoltage protection as discussed above.

Should you have any questions, please contact us.

Sincerely,

[

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Thoma ppofito, Chief Opera ing Reactors Branch #3 Division of Operating Reactors

Enclosure:

Staff Position cc w/ enclosure: See page 2 1410 341

$W 7911280

it Mr. Edward G. Bauer, Jr.

Philadelphia Electric Company cc:

Eugene J. Bradley Philadelphia Electric Company Assistant General Counsel 2301 Market Street Philadelphia, Pennsylvania 19101 Troy B. Conner, Jr.

1747 Dennsylvania Avenue, N. W.

Washington, D. C.

20006 Raymond L. Hovis, Esquire 35 South Duke Street York, Pennsylvania 17401 Warren K. Rich, Esquire Assistant Attorney General Department of Natural Resources Annapolis, Maryland 21401 Government Publications Section State Library of Pennsylvania Education Building Commonwealth and Walnut Streets Harrisburg, Pennsylvania 17126 M. J. Cooney, Superintendent Generation Division - Nuclear Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 Edward Greenman U. S. Nuclear Regulatory Commission Office of Inspection and Enforcement Peach Bottom Atomic Power Station P. O. Box 399

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Delta, Pennsylvania 17314 Philadelphia Electric Corpany ATTH:

Mr. W. T. Ullrich Peach Bottom Atomic Pcwer Station Delta, Pennsylvania 17314