ML17254A447
| ML17254A447 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 07/17/1985 |
| From: | Zwolinski J Office of Nuclear Reactor Regulation |
| To: | Kober R ROCHESTER GAS & ELECTRIC CORP. |
| References | |
| LSO5-85-07-024, LSO5-85-7-24, NUDOCS 8507220325 | |
| Download: ML17254A447 (4) | |
Text
July 17, 1985 Docket No. 50-244 LS05-85-07-024 Mr. Roger W. Kober, Vice President Electric and Steam Production Rochester Gas 8 Electric Corporation 89 East Avenue Rochester, New York 14649
Dear Mr. Kober:
SUBJECT:
REQUEST FOR INFORMATION ON GENERIC ISSUE 77, "FLOODING OF SAFETY EQUIPMENT COMPARTMENTS BY BACKFLOW THROUGH FLOOR DRAINS" Re:
R.
E. Ginna Nuclear Power Plant In a teleconference between Dr. Charles Miller, the NRC project manager for the R.
E. Ginna Nuclear Power Plant and Mr. George Wrobel of Rochester Gas and Electric Corporation (RGSE) it was agreed that RGtmE would supply requested information to NRC on Generic Issue 77.
The primary purpose of Generic Issue 77 is to determine the need for back-fitting current Standard Review Plan criteria for prevention of flooding or transfer of other adverse environmental conditions to redundant safety-related equipment compartments.
The enclosure contains the information requested.
Because this information is needed in a relatively short time frame, please respond within 30 days of receipt of this request.
Thank you for your cooperation on this matter.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincer ely, John A. Zwolinski, Chief Operating Reactors Branch ¹5 Division of Licensing DL: ORB ¹ CJamerson
,T /I5/85 DL
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Enclosure:
As stated cc w/enclosure:
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Mr. Roger 1<.
Kober Rochester Gas and Electric Corporation R.
E. Ginna Nuclear Power Plant CC:
Harry H. Voigt, Esquire
- LeBoeuf, Lamb, Leiby and MacRae 1333 Nevi Hampshire Avenue, N.ll.
Suite 1100 llashington, D.C.
20036 Ezra Bialik Assistant Attorney General Environmental Protection Bureau New York State Department of Law 2 h'orld Trade Center New York, New York 10047 Resident Inspector R.E.
Ginna Plant c/o U.S.
NRC 1503 Lake Road
- Ontario, New York 14519 Stanley B. Klimberg, Esquire General Counsel New York State Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsvlvania 19406 Supervisor of the Town of Ontario 1850 Ridge Road
- Ontario, New York 14519 Jay Dunkleberger Division of Policy Analysis 8 Planning New York State Energy Office Agency Building 2 Empire State Plaza
- Albany, New York 12223
REQUE~FOR INFORMATION BY THE OFFICE 09%UCLEAR REACTOR REGULATION RE ROCHESTER GAS 8( ELECTRIC CORPORATION R.
E.
GINNA NUCLEAR POWER PLANT DOCKET NO. 50-244 GENERIC ISSUE 77 1.
Provide a detailed discussion of the equipment and floor drainge system(s) which serve safety-related equipment or compartments containing safety-related equipment or compartments.
Include diagrams as appropriate.
As part of the discussion, describe the features which will prevent back-flow from any area into compartments containing safety-related equipment.
This discussion should include the drainage system and any other compart-ment openings such as doors, unsealed penetrations of grating through which fluid may flow.
Sources of fluid to be considered are external flooding (ground water seepage, surface influence from rivers, lakes and rain fall ponding) and flooding due to tank failures and pipe breaks including failure of the expansion points in the circulating water system.
The back-flowing fluids to. be considered are water, steam and hot air.
Confirm for those conditions identified above and that redundant safety-related equip-
'ent will not be adversely affected by fluid ingress into the equipment compartments.
. 2.
Describe the design basis for sizing the equipment and floor drainage
.systems and the means for assuring that they can effectively handle the maximum leakage flow conditions in the specific plant areas of concern housing redundant safety-related equipment.
3.
Indicate any past incidents of drainage system backflow or other concern for failure of redundant safety-related equipment that has arisen or been postulated in the past due to a fluid leak or harsh environment in safety-related equipment areas.