ML20009E197
| ML20009E197 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley, Millstone, Calvert Cliffs, Peach Bottom, Salem, Nine Mile Point, Indian Point, Oyster Creek, Hope Creek, Pilgrim, Susquehanna, Seabrook, Limerick, Vermont Yankee, Haddam Neck, Ginna, Sterling, Yankee Rowe, Maine Yankee, Rancho Seco, FitzPatrick, 05000363, 05000516, 05000517, Shoreham, Trojan, Crane  |
| Issue date: | 03/13/1981 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NUDOCS 8107270217 | |
| Download: ML20009E197 (4) | |
Text
Rc*gsor)1 3/e /ef t.IST OF HOLCERS OF NUCLEAR PCWER REACTOR OPERATING LICENSES AND CCNSTRUCTICN PERMITS RECEIVING IE INFORMATICN NOTICE NO. 31-05 Baltimore Gas and Electric Company Occket Nos. 50-317 ATTN: Mr. A. E. Lundvall, Jr.
50-313 Vice President, Supply P. O. Box 1475 Saltimore, Maryland 21203 Boston Edison Company M/C Nuclear Occket No. 50-293 ATTN: Mr. A. V. Mori si Nuclear Operations Supoort Manager 300 Soylsten Street Boston, Massachusetts 02199 Connecticut Yankee Atomic Power Company Occket No. 50-213 ATTN:
Mr. W. G. Counsil Vice President - Nuclear Engineering and Cperations P. O. Box 270 Hartford, Connecticut 06101 Consolidated Edison Company of Occket Nos. 50-03 New York, Inc.
50-217 ATTN:
Mr. John O. O'Toole Assistant Vice President - Nuclear Affairs and Quality Assurance 4 Irving Place New York, New York 10003 Ouquesne lignt Comoany Docket No. 50-334 ATTN:
Mr. C. N. Dunn Vice President Operations Division 135 Sixth Avenue Pittscurgh, Pennsylvania 15219 Jersey Central Power and Lignt Comoary Docket No. 50-219 ATTN:
Mr. Ivan R. Finfrock, Jr.
Vice President Cyster Creek Nuclear Generating Station P. O. Box 388 Forked River, New Jersey 03731 8107270217 810313 PDR ADOCK 05000003 0
3 9:
2 Maine Yankee Atcmic Poscr Comcany Occket No. 50-309 ATTN: Mr. Robert H. Grace Senior Engineer-Licensing 1671 Worcester Road Framingham, Massachusetts 01701 1
Metropolitan Edison Company Oncket No. 50-239 ATTN: Mr. H. D. Hukill 1/tce President and Director of TMI-1 P
O. Box 480 Middletown, Pennsylvania 17057 Metropolitan Edison Compa y Docket No. 50-320 ATTN:
Mr. G. K. Hovey Vice President and Director of TMI-2 P. O. Box 480 Middletown, Pennsylvania 17057 4
Niagara Mohawk Power Corporation Docket No. 50-220 ATTN:
Mr. T. E. Lempges Vice President Nuclear Generation 300 Erie Boulevard West i
Syracuse, New York 13202 Northeast Nuclear Energy Company Occket Nos. 50-336 AT~N:
Mr. W. G. Counsil 50-245 Vice President - Nuclear 50-423 Engineering and Operations P. O. Box 270 Hartford, Connecticut 06101 Philadelpaia Electric Company Docket Nos. 50-277 ATTN:
Mr. S. L. Daltroff 50-278 Vice President Electric Production 2301 Market Street Philadelphia, Pennsylvania 19101 Power 'athority of the State of New York Docket No. 50-236 Indian Point 3 Nuclear Power Plant ATTN: Mr. S. S. Zulla Resident Manager P. O. Box 215 Buchanar, New York 10511 j
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Power Authority of the State of New York Occket 1o. 50-333 James A.-Fit: Patrick Nuclear Power Plant ATTN: Mr. R. J. Pasternak Resident Manager P. O. Box 41 Lycoming,.New York 13093 Public Service Elsctric and Gas Company Docket Nos, 50-272
~ ATTN: Mr. F. W. Schneider 50-311 Vice President - Production 30 Park Plaza - 15A Newark, New Jersey 07101 Rochester Gas and Electric Corporation Occket No. 50-244 2
ATTN: Mr. John E. Maier Vice President Electric and Steam Production 89 East Avenue Rochester, New York 14649 Vermont Yankee Nuclear Power Corporation Docket No. 50-271 ATTN: Mr. Robert L. Smith 4
Licensing Engineer i
1671 Worcester Road Framingham, Massachusetts 01701 Yankee Atomic Electric Comoany Occket No. 50-29 ATTN: Mr. James A. <ay Senior Engineer-Licensing i
1671 Worcester Road Framingham, Massachusetts 01701 Ouquesne Light Company Occket No. 50-412 ATTN: Mr. E. J. Woolever Vice President 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Jersey Central Power & Light Company Occket No. 50-363 ATTN: Mr. I. R. Finfrock, Jr.
i Vice President 260 Cherry Hill Road Parsippany, New Jersey 07054 Long Island Lighting Company Docket No. 50-322 ATTN: Mr. M. S. Pollock
.Vice President - Nuclear 175 East Old Country-Road.
-Hicksville, New York 11301 3
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Long Island Lighting Company Occket Nos. 50-516 ATTN: Mr. Charles P. Davis 50-517 Senior Vice President 250 Old Country Road Mineola,itew York 11501 Niagara Mohawk Pewar Corpc~ation Occket No. 50-410 ATTN.
Mr. Gers.!a K. Rhode Vict ? resident System Project Management c/o Miss Catherine R. Seibert 300 Erie Soulevard, West Syracuse, NY 13202 Penn,ylvania Power & Lign Company Oceket Nos. 50-387 ATTN: Mr. Norman W. Curtis 50-388 Vice President Engineering and Construction - Nuclear 2 North Ninth Street Allentown, Pennsylvania 13101 Philadelphia Electric Company Docket Nos. 50-352 ATTN:
Mr. John S. Kemper 50-353 Vice President Engineering and Research 1;01 Market Street Philadelphia, Pennsylvania 19101 Public Service Electric & Gas Company Docket Nos. 50-354 ATTN: Mr. T. J. Martin 50-355 Vice President Engineering and Construction 80 Park Pla:a - 17C Newark, New Jersey 07101 Public Service Company of New Hampshire Occket Nos. 50-443 ATTN: Mr. W. C. Tallman 50-444 Chairman and Chief Executive Officer 1000 Elm Street Manchester, New Hampshire 03105 Rochester Gas & Electric Corporation Occket No. 50-485 ATIN:
Mr. J. E. Arthur Chief Engineer 89 East Avenue Rochester, New York 14649
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SSINJ No.: 6835 Accession No.:
8011040271 IN 81-05 UNITED STATES NUCLEAR REGULATCRY CCMMISSICN OFFICE OF INSPECTICN AND ENFORCEMENT
'4ASHINGTCN, D.C.
20555 March 13, 1981 IE INFORMATION NOTICE NO. 31-05: DEGRADED CC SYSTEM AT PALISADES Purcose:
The intent of this notice is to enharce nuclear power plant safety by improving the reliability of the direct current (de) distribution system in nuclear power plants. Toward this end, this information notice alerts holders of operating licenses and construction permits of an event that degraded the de system at the Palisades facility and jeopardized plant safety.
Descriotion of Circumstances:
On January 6, 1981, while performing monthly surveillance tests on both station batteries, maintenance personnel inadvertently opened the breakers from both station batteries to their $25 volt cc buses and left them open for a;proxi-mately one hour. 'de view '.c.is personnel error as a common-mcde failure that, if left uncorrected, would lead to a complete station blackout [i.e., total lossofbothalternatingcurrent(ac)anddepower].
Since the plant was in a normal mode of coeration, de power was being su:olied by the ac system via the battery chargers; therefore, de power was never interrupted during this period. Nevertheless, as described later, the safety of the plant was jeopardi:ed. A loss of offsita power during :nis period would, in the absence of manual action, result in the loss of all control power, blocking the automatic transfer of power to the onsite diesel generators.
In many designs, such losses would also block the starting of the diesels.
In contrast, the Palisades design would not block the starting of the diesels; however, the loss of control power would block the connecting of the generators to their emergency buses so that a complete station blackout would still result.
In either case, the blackout would ptrsist until the battery breakers were manually reclosed or manual actions taken (e.g., manually closing tne breakers from the diesel generators to their emergency buses and the required cown stream load creakers.) During tnis time the ability of the plant to remove decay heat would be severely restricted. Since the tripoing of the batten breakers is not annunciated in the Palisades control room, a subsequent loss of offsite power would lead to an undetacted common-mode failure.
Such a failure would be difficult to diagnose, th=reby limiting the operator's ability to take timely corrective action. Consequen. ly, an inorcinate amount of time coul rep.. d g
to bring the plant to a normal mode of decay heat removal.
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a ZN 31-05 March 13, 1981 Page 2 of 2 Plants designed to conform with Re3Jlatory Guide 1.47, "9ypassed and Inoperable Status Indication for Nuclear Power Plant Safety," will autcmatically alert the operator whenever a battery is disconnected from its bus, thereby precluding a Palisades type of event. As a corrective measure, Palisades is planning to install annunciators in the control room that will alert the operator whenever a station battery has been disconnected from. s bus.
The information herein is being provided as an early notification of a possibly significant matter that is still under review by the NRC staff. Recipients should review the information for possible applicability to their facilities.
If NRC evaluations so indicate, further licensee actions may be requested.
No written response to this Information Notice is recuired.
If you desire additional information regarding this matter, enntact tne Director of the appropriate NRC Regional Of fice.
Attacnment:
Recently issued IE Information Notices nm-e
o IN 81-05 March 13, 1981 RECENTLY IS~UED IE INFORMATICN JTICES Information Subject Date Issued to Notice No.
Issued 81-06 Failure of ITE Model 3/11/31 All holders of K-600 Circuit 3reaker a power reactor OL or CP 81-04 Cracking in Main 2/27/81 All holders of a Steam Lines power reactor OL or CP 31-03 Checklist for 2/2/31 All holders of a Licensees Making power reactor Notifications of OL Significant Events in Accordance with 10 CFR 50.72 31-02 Transportation of 1/23/*'
All holders of a Radiography Cevices radiography license 81-01 Possibic Failures of 1/16/31 All hoicers of a General Electric power reactor CL Type HFA Relays or CP 30-45 Potential Failure of 12/17/30 All holders of a BWR Backuo Manual power reactor Scram Capability OL or CP 80-44 Actuation of ECCS in 12/14/30 All holders of a the Recirculation Mode PWR power reactor OL While in Hot Shutdown or CP 30-43 Failures of the 12/5/80 All holders of a Continuous Water Level SWR power reactor Monitor for the Scram OL or CP Oischarge Volume at Oresden Unit No. 2 80-29 Broken Studs on Terry 11/26/80 All ho'ders of a Supplement Turbine Steam Inlet power reactor No. 1 Flange OL or CP e
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