ML19337A453
| ML19337A453 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 09/11/1980 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Parker W DUKE POWER CO. |
| References | |
| NUDOCS 8009290001 | |
| Download: ML19337A453 (5) | |
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$(P 111980 Docket Nos.:
50-369 and 50-370 Duke Power Company ATTN: Mr. William O. Parker, Jr.
Vice President - Steam Production Post Office Box 33189 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Parker:
SUBJECT:
Request For Additional Information - Reactor Systems (McGuire Nuclear Station Units 1 and 2)
As a result of our review of the information contained in your November 14, 1979 letter regarding Branch Technical Position RSB 5-1, we find that we require some additional information which is described in the Enclosure.
In order for us to promptly conclude our evaluation of this matter, we require that this information be provided no later than September 22, 1980. We have previously provided this information to your staff.
Sincerely, 9A agn Robert L. Tedesco, Assistant Director for Licensing Division of Licensing cc:
See next page 1
m 8 o o o 290001 4
s Mr. William 0. Parker, Jr.
Vice President, Steam Production o
Duke Power Company P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 cc:
Mr. W. L. Porter David Flesichaker, Eso.
Duke Power Company 1735 Eye Street. N. W.
P. O. Box 2178 Suite 709 422 South Church Street Washinoton, D. C.
20006 Charlotte, North Carolina 28242 Richard P. Wilson, Eso.
Mr. R. S. Howard Assistant Attorney General Power Systems Division State of South Carolina Westinghouse Electric Corporation 2600 Bull Street P. O. Box 355 Columbia, South Carolina 29201 Pittsburgh, Pennsylvania 15230 Mr. E. J. Keith EDS Nuclear Incorporated 220 Montgomery Street San Francisco, California 94104 Mr. J. E. Houghtaling NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Mr. Jesse L. Riley, President The Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 J. Michael McGarry, !!!, Esq.
Debevoise & Liberman 1200 Seventeenth Street, N. W.
Washington, D. C.
20036 Rober t M. Lazo, Esq., Chairman Atomic Safety 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 Washingten, D. C.
20555 Dr. Cadet H. Hand, Jr., Director Bodega Marine Lab of California P. O. Box 247 Bodega Bay, California 94923
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cc: David Flesichaker, Esq.
3 1735 Eye Street, N. W.,
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". 5 Richard P. Wilson, Esq.
M Assistant Attorney General f?
State of South Carolina 2600 Bull Street
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i Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina 27603 r,
5 County Manager of Mecklenburg County H
720 East Fourth Street Charlotte, North Carolina 28202
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U. S. Environnental Protection Agency
- 9 ATTN: EIS Coordinator e
Region IV Office 3
345 Courtland Street, N. W.
Atlanta, Georgia 30308
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ENCLOSURE 212.121 Provioe a commitment to perform an in-plant test to demonstrate the adequacy of local manual action to operate stean generator power operated relief valves to satisfy cooldown requirements of BTP-RSB5-1 in the event that the non-safety grade remote operators or power supplies failed.
212.122 The response to RSB 5-1 indicates that RHR conditions may be achieved "in a reasonable amount of time." Specifically, what is the amount of time required to achieve RHR conditions assuming a worst single failure (including irreparable mechanical failures).
212.123 The response to RSB 5-1 has indicated that McGuire would reference natural circulation tests at other Westinghouse plants to satisfy the RSB 5-1.
Identify which tests will be referenced.
Justify, by plant comparativ's analyses, that tests at the referenced plant (s) are
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l applicable to McGuire. Provide a commitment to perform the tests at McGuire during the first refueling outage in the event that the referenced tests either do not successfully justify natural circulation boration and cooling for,McGuire or are not available at that time.
212.124 The response to RSB 5-1 states that specific procedures for cooling down using natural circulation will be prepared prior to startup of the McGuire Plant.
Commit to providing these procedures when they are prepared.
i 212.125 Identify all valves needed to achieve or maintain cold shutdown which require an air supply.
Discuss air supply failures in these valves.
Identify operator actions which would be taken to overcome the failure and estimate the times required to perform the actions.
Discuss any time, environmental, or locational restraints imposed by reactor condi-tion or layout which might dictate additional time requirements.
212.126 When discussing removal of residual heat from 350 F to 2000F the response to RSB 5-1 identifies that RHR Suction Isolation Valves NDIA and N028 are aligned in series and that the spurious closure of either valve would prevent RHR operation.
Discuss alternative means of coo'idown which could be employed at McGuire in the event of a mechanical failure (closed) of either valve. Address the potential for repair and/or replacement of a valve.
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