ML17258B122
| ML17258B122 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 06/09/1981 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Maier J ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| TASK-08-03.B, TASK-8-3.B, TASK-RR 81-6-18, LSO5-81-06-018, LSO5-81-6-18, NUDOCS 8106160436 | |
| Download: ML17258B122 (5) | |
Text
C2'une 9,
1981 Docket No. 50-244 LS05 06-018 Mr. John E. Maier Vice President Electric 8 Steam Production Rochester Gas 8I Electric Corporation 89 East Avenue Rochester, New York 14649
Dear Mr. Maier:
SUBJECT:
SEP TOPIC VIII-3.B, DC POWER SYSTEM BUS VOLTAGE MONITORING AND ANNUNCIATION, SAFETY EVALUATION FOR GINNA The enclosed staff safety evaluation is based on a contractor's document that has been made available to you previously.
This document supports the findings of the staff safety evaluation of Topic VIII-3.B and recomends modifications to the dc systems.
The need to actually implement these changes will be determined during the integrated safety assessment.
This safety evaluation may be revised in the future if your facility design is changed or if NRC criteria relating to this topic are modified before the integrated assessment is completed.
Sincerely,
Enclosure:
As stated cc,w/enclosure:
See next page Dennis M. Crutchfield,'hief Operating Reactors Branch 5'5 Division of Licensing 81 06160 OFFICE)
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Docket No. 50-244 LS05-81-06-018 UNITED STATES NUCLEAR REGULATORY COMMISSION
, WASHINGTON, D. C. 20555 June 9, 1981 Mr. John E. Maier Vice President Electric 8 Steam Production Rochester Gas 5 Electric Corporation 89 East Avenue Rochester, New York 14649
Dear Mr. Maier:
SUBJECT:
SEP TOPIC VIII-3.B, DC POWER SYSTEM BUS VOLTAGE MONITORING AND ANNUNCIATION, SAFETY EVALUATION FOR GINNA The enclosed staff safety evaluation is based on a contractor's document that has been made available to you previously.
This document supports the findings of the staff safety evaluation of Topic VIII-3.B and recommends modifications to the dc systems.
The need to actually implement these changes will be determined during the integrated safety assessment.
This safety evaluation may be revised in the future if your facility design is changed or if NRC criteria relating to this topic are modified before the integrated assessment is completed.
Sincerely,
Enclosure:
As stated Dennis M. Crutchfield, Chi Operating Reactors Branch 5'5 Division of Licensing cc w/enclosure:
See next-page
Mr. John E. Maier CC Harry H. Voigt, Esquire
- LeBoeuf, Lamb, Lei by and MacRae 1333 New Hampshire
- Avenue, N.
W.
Suite 1100 Washington, D.
C.
20036 Mr. Michael Slade 12 Trailwood Circle Rochester, New York 14618 Ezra Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047 Jeffrey Cohen New York State Energy Office Swan Street Building Core 1,
Second Floor Empire State Plaza
- Albany, New York 12223 Director, Technical Development Programs State of New York Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223 Rochester Public Library 115 South Avenue Rochester, New York 14604 Supervisor of the Town of Ontario 107 Ridge Road West
- Ontario, New York 14519 Resident Inspector R. E. Ginna Plant c/o U. S.
NRC 1503 Cake Road
- Ontario, New York 14519 Director, Criteria and Standards Division Office of Radiation Programs (ANR-46O)
U. S. Environmental Protection Agency Washington, D. C.
20460 U. S.
E nvi ronmental P rotect i on Agency Region II Office ATTN:
E I S COORDINATOR 26 Federal Plaza New York, New York 10007 Herbert Grossman, Esq.,
Chairman At'omic Safety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr. Richard F. Cole Atomic Sa fety and Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Dr.
Emmeth A. Luebke Atomic Safety and Licensing Board.
U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Mr. Thomas B. Cochran Natural Resources Defense Council, Inc.
1725 I Street, N.
W.
Suite 600 Washington, D. C.
20006 Ezra I. Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 World Trade Center New York, New York 10047
TO. IC:
VII1-3.B, D" PGl ER SYSTEfl BUS VOLT'GE MONITO, 'NG AND Af'NUNCIATION Inti oducti on L
To assu) e the desion adequacy of the dc power system battery and bus voltage monitoring and annunciation schemes such that the operator can (1) prevent the loss of an emergency dc bus; or (2) take timely corrective action in the event of loss of'n emergency dc bus, we reviewed the dc power system battery, battery charger, and bus voltage monitoring and annunciation design with respect to dc power system operability status indication to the operator.
~aj II.
Review Criteria The review criteria are presented in Section 2 of EGSG Report 1348F'DC Power System Bus Voltage Monitoring and Annunciation."
Related Safet To ics and Interfaces None IV.'evi eiv Gui de 1 i nes None V.
Evaluation As noted in EGSG Report 1348F the Ginna control room has no indication of battery current, battery charger current, or breaker/fuse status.
Therefore, the Ginna dc power system monitoring is not in compliance with current licensing criteria.
VI.
Conclusion The staff proposes that as a minimum, the following additional indica-tions and alarms of the Class 1E dc power system(s) status shall be provided in the control room.
Battery current (aometer-charge/discharge)
Battery charger output current (araneter)
DC bus ground alarm (for ungrounded'system)
Battery breaker(s) or fuse(s) open alarm Battery charger output breaker(s) or fuse(s) open alarm