ML20205P644
| ML20205P644 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 11/02/1988 |
| From: | Mcneil S Office of Nuclear Reactor Regulation |
| To: | Tiernan J BALTIMORE GAS & ELECTRIC CO. |
| Shared Package | |
| ML20205P647 | List: |
| References | |
| TAC-59079, TAC-59080, NUDOCS 8811080250 | |
| Download: ML20205P644 (2) | |
Text
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1 Novonbar 2, 1980 Docket Nos. 50-317 Distribution and 50-318 appocket.T1ver NRC M Local PDRs PD;-1 Rdg SVarga q
BBoger SMcNeil Mr. J. A. Tiernan EJordan MDev Vice President - Nuclear Energy BGrimes ACRS (10)
Baltimore Gas and Electric Company LTripp L*.ewbe rry Calvert C1tffs Nuclear Power Plant CYogan OGC PD Rts. 2 & 4 RCapra Post Office Box 1535 Lusby, Maryland 20657
Dear Mr. Tiernan:
SUBJECT:
SAFETY EVALUATION CONCERNING CONFORMANCE TO THE ATWS RULE (TACS 59079 AND 59080)
The NRC staff has completed its review of your submittals, dated June 27, 1986, June 11, 1987 and May 12, 1988, which described how you intended to comply with the requirements of 10 CFR Part 50.62, "Requirements for Reduction of RHk From Anticipated Transients Without Scram (ATWS) Events for Light-Water-Coob Nuclear Power Plants," at Calvert Cliffs Nuclear Power Plant. Units 1 and 2.
Tte staff finds that the proposed Unit I and 2 designs for the diverse scram systen (DSS) and the diverse turbine trip (DTT) system when installed by the dates required and 2) the currently in-place auxiliary feedwater actuation q
system (AFAS), in lieu of a new diverse auxiliary feedwater actuation system (DAFW), are acceptable with regards to the requirements of 10 CFR Part 50.62.
It should be noted that the NRC staff, currently, is evaluating the need for Technical Specificat'on (TS) operability and surveillance requirements for l
ATWS equipment. The current TS requirements for AFAS are accepuble in meeting the operability and surveillance requirements that would be expected-for DAFW.
4 Upon completion of the staff evaluation of the need for ATWS equipment TS requiren,ents, you shall be notified if any TS amendments are necessary.
Enclosed herewith is our Safety Evaluation.
Sincerely,
$16!A41814EJhy Scott Alexander McNeil. Project Manager Project Directorate I-1 Olvision of Reactor Projects I/II
Enclosure:
Safety Evaluation a
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,r r Mr. J. A. Tiernan Baltimore Gas & Electric Company Calvert Cliffs Nuclear Power Plant cc:
Mr. John M. Gott, President Calvert County Board of Commissioners Prince Frederick, Maryland 20758
- 0. A. Brune, Esq.
General Counsel Baltimore Gas and Electric Company P. O. Box 1475 Baltimore, Maryland 21203 Mr. Jay E. Silberg, Esq.
Shaw, Pittman, Potts and Trowbridge 1800 M Street, NW Washington, DC 20036
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Mr. W. J. Lippold, General Supervisor Technical Services Engineering Calvert Cliffs Nuclear Power Plant MD Rts 2 & 4. P. O. Box 1535 Lusby, Maryland 20657 Resident Inspector c/o U.S. Nuclear Regulatory Commission P. O. Box 437 Lusby, Maryland 20657 Departrent of Natural Resources Energy Administration, Power Plant Siting Prtgram ATTN: Mr. T. Magette Tawes State Office Building Annapolis, Maryland 21204 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia Pennsylvania 19406 t
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