ML17258A866

Forwards Request for Addl Info on SEP Topic VI-07.B Re Engineered Safety Features Switchover from Injection to Recirculation Modes.Response Should Be Submitted within 30 Days

ML17258A866
Person / Time
Site:	Ginna
Issue date:	02/27/1981
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Maier J ROCHESTER GAS & ELECTRIC CORP.
References
TASK-06-07.B, TASK-6-7.B, TASK-RR LSO5-81-02-056, LSO5-81-2-56, NUDOCS 8103120279
Download: ML17258A866 (5)

Text

FEB 2'l 1981 Docket No. 50-244 pe,so=St-~z.~>->

Mr. John E. Maier Vice President Electric and Steam Production Rochester Gas 5 Electric Corporation 89 East Avenue Rochester, New York 14649

SUBJECT:

SEP TOPIC VI-7.B, ESF SllITCHOVER REQUEST FOR ADDITIONAL INFORMATION The enclosed request for additional information has been prepared as part of our evaluation of the ESF Switchover from In)ection to Recirculation Modes at R. E. Ginna.

Because this concern is a part of a SEP Topic, response within 30 days is requested so that we maintain the present SEP review schedule.

Sincerely,

Enclosure:

As stated Dennis M. Crutchfield, Chief Operating Reactors Branch No.

5 Division of Licensing cc w/enclosure:

See next page 919SESQ,g ~+

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Docket No. 50-244 LS05-81-02-.056 UNITED STATES NUM~EAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 FEB 2'7 881-Mr. John E. Maier Vice President Electric and Steam Production Rochester Gas 8 Electric Corporation 89 East Avenue Rochester, New York 14649

SUBJECT:

SEP TOPIC VI-7.B, ESF SWITCHOVER (R,

E.

GINNA)

REQUEST FOR ADDITIONAL INFORMATION The enclosed request for additional information has been prepared as part of our evaluation of the ESF Switchover from Injection to Recirculation Modes at R.

E. Ginna.

Because this concern is a part of a SEP Topic, response within 30 days is requested so that we maintain the present SEP review schedule, Sincerely, Enclosure; As stated Dennis M. Crutchfjeld, Chief Operating Reactors Branch No, 5

Division of Licensing cc w/enclosure; See next page

Hr. John E. Maier R.

E.

GINNA NUCLEAR POWER PLANT DOCKET NO. 50-244 CC Harry H. Voigt, Esquire

LeBoeuf, Lamb, Leiby and MacRae 1333 New Hampshire Avenue, N.

W.

Suite 1100 Washington, D. C.

20036 Mr. Michael Slade 12 Trailwood Circle Rochester, New York 14618 Rochester Comnittee for Sci entifi c Informat i on Robert E. Lee, Ph.D.

P. 0. Box 5236 River Campus Station Rochester, New York 14627 Jeffrey Cohen New York State Energy Office Swan Street Building Core 1, Second Floor Enquire State Plaza

Albany, New York 12223 Director, Techni cal Development Programs State of New York Energy Office Agency Building 2 Eoqire State Plaza

Albany, New York 12223 Rochester Public Library 115 South Avenue Rochester, New York 14604 Supervisor of the Town of Ontari o 107 Ridge Road West

Ontario, New York 14519 Resident Inspector R. E. Ginna Plant

.c/o U. S.

NRC 1503 Lake Road

Ontario, New York 14519 Richard E. Schaffstall, Executive Director for SEP Owners Group 1747 Pennsylvania

Avenue, NW Washington, D.C.

20006 Director, Technical Assessment Division Office of Radiation Programs (AW-459)

U. S. Environmental Protection Agency Crystal Mall f2 Arlington, Virginia 20460 U. S. Environmental Protection Agency Region II Office ATTN:

E IS COORD INATOR 26 Federal Plaza New York, New York 10007 Herbert Grossman, Esq.,

Chairman Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comnission

'ashington, D. C.

20555 Dr. Richard F. Cole Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comnission Washington, D. C.

20555 Dr.

Emmeth A. Luebke Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comaission Washington, D. C.

20555 Mr. Thomas B. Cochran Natural Resources Defense Council, Inc.

1725 I Street, N.

M.

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

REQUEST FOR O'TIONAL INFORMATION ON SE TOPIC VI-T.B By text>

PAID> and electr i cal schemat i cs J 'describe the design provisions and procedures used in your plant to satisfy the requirements of Branch Technical Position ICSB-20.

The information provided should include> but need not be limited to > the following:

Describe the procedures used to switchover from the injection to the recirculation mode of emergency core cooling (ECC).

(2)

For each instr umenti indicatori logic device and alarm that is used by the operator to perform a manual function or that is used to initiate an automatic function in the switchover sequence; describe how that device is qualified and installed (e.g.

independence and separation of circuits) as Class 1E equ'i pment.

(3) Describe the level sensing system that is used to indicate or detect the level in the tank that supplies injection coolant.

This description should include sensor and data column locat i one freeze protect i one freeze protection power supply and those items specified in (2) above.

If injection pumps are not automatically tripped on low level> quantify the level at which the operator must secure these pumps and the time remaining beyond this level (assuming all pumps are running) at which loss of NPSH occurs.

Describe the paths of the minimum flow lines from each ECCS pump discharge to the line end.

This description should identify all valves in these lines~

the signals that control each valvei the power sources for each valve~

and the qual ification of each valve.

(6) For each minimum flow line that returns to a

point other than the pump intake point> provide a single failure analysis and quantify the offsite dose rate~

dosei and dose assumptions obtaining from all single failures that do not isolate these lines during the recirculation phase of ECC.