ML17258A888

Forwards Safe-Shutdown Capability Assessment & Proposed Mods - 10CFR50,App R - Ginna Unit 1, Per Revised NRC Criteria.Review of Fire Protection Items Should Include Integrated Approach

ML17258A888
Person / Time
Site:	Ginna
Issue date:	03/19/1981
From:	Maier J ROCHESTER GAS & ELECTRIC CORP.
To:	Crutchfield D Office of Nuclear Reactor Regulation
Shared Package
ML17258A889	List: ML17258A888 ML17258A890
References
NUDOCS 8103200597
Download: ML17258A888 (6)

Text

REGULATO INFORMATION DISTRIBUTION STEM (RIDS)

ACCESSION NBR: 8103200597 DOC e DATE e 81/03/19 NOTARIZED: NO DOCKET FACIL.:50 244 Robert Emmet Ginna Nuclear Planti Unit ii Rochester G 05000244 AUTH, NAME AUTHOR AFFILIATION MAIERg J,E ~ Rochester Gas L Electric

~ NAME- RECIPIENT AFFILIATION Corp'ECIP CRUTCHFIELDg D ~ Operating Reactors Branch 5

SUBJECT:

Forwards "Safe-Shutdown Capability Assessment L Proposed Mods - 10CFRSO~App R Ginna Unit 1~" per revised NRC criteria,Review of fire protection items should include integrated approach.

DISTRIBUTION COPE: A006S COPIES RECEIVED:LTR g 'NCL 'IZP: +

TITLE': Fire Pr otection Infor mation (Af ter Issuance of OP. Lic,)

NOTES: 1 copy:SEP Sects Ldr ~ 05000244 RECIP IENT COPIES RECIPIENT COPIES ID CODF/NAME LTTR ENCL ID CODE/NAME LTTR ENCL.

ACTION: CRUTCHF IELD 04 7 7 INTERNAL: CHEM ENG BR A 7 5 5 DIRgDIV OF LIC 1 1 ILE 06 2 2 NRC'DR 02 1 1 0 1 0 OGC 1 1 EG FILE Ol 1 1 NAMBACHgT, 10 1 EXTERNALS ACRS 09 16 16 LPDR 03 NSIC 05 1 1 TOTAL NUMBER OF COPIES REQUIRED; LTTR ~ ENCL

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y uzi p esse 'E ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.Y. I4649 JOHN E. MA IER TELEPHONE VICE PRESIDENT AREA CODE Tle 546-2700 March 19, 1981 Director of Nuclear Reactor Regulation Attention: Mr. Dennis M. Crutchfield, Chief eo E.

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~W~ ~~a Operating Reactors Branch No. 5 U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Fire Protection Safe Shutdown Systems R. E. Ginna Nuclear Power Plant ~ll LP Docket No. 50-244

Dear Mr. Crutchfield:

In response to the NRC Fire Protection Safety Evaluation Report, dated February 14, 1979, a detailed study was performed by RGRE of the ability of plant operators to bring Ginna Station to a safe shutdown following a fire. This study, submitted on December 28, 1979, assumed that fire detection, automatic fire suppression and suppression by fire brigades were ineffective in extinguishing a fire. The study evaluated cable and equipment locations for equipment which could be used for plant shutdown.

Both failure of equipment to function when called upon and inadvertent operation were postulated in order to address all possible scenarios.

The enclosed report has been prepared in response to the requirements of. 10 CFR Part. 50.48 and Appendix R to 10 CFR Part

50. This report builds upon the earlier report prepared by RG&E and extends the analyses by addressing the revised regulatory criteria and by including potential modifications.

We recognize, however, that equipment which may require modification or systems which may need to be supplemented for fire protection purposes may also require modification or supple-mentation in response to other regulatory concerns. For example, we have proposed certain changes in the Ginna Screen House to provide additional assurance of the operability of the service water pumps following a fire. However, changes may also be required to the service water system in the Screen House as a Oo o result of topic reviews in the Systematic Evaluation Program (SEP). Extensive cable rerouting is suggested in the enclosed sxossoogg f

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March 19 g 1981 Mr. Dennis M. Crutchfield SHEET NO.

report to provide additional assurance of the availability of safe shutdown equipment following a fire. Again, these plans could be impacted by SEP findings.

We believe that it would result in the best solutions from a safety standpoint, from a human factors standpoint, and from-an economic standpoint, if an integrated approach were taken to the various regulatory requirements. We believe that such an integrated approach can be taken without significant slippage in schedules. Itforis Ginna our understanding that most SEP topics should be completed by Fall 1981 with integrated assessment coming thereafter.

As a result of the limited time available since issuance of the revised fire protection regulations, and based on the status of SEP topic review, the enclosed report does not identify modifi-cations other than those suggested, on a preliminary basis, for fire protection. We expectforto the refine our plans regarding fire protection in preparation additional submittal of May 19, 1981 that was identified by the NRC Staff in a letter dated February 20, 1981. While we will attempt to meet the May 19 submittal date, to attain the it may integration be necessary which we to seek believe an extension in order is necessary. We will advise you should such an extension be required.

Very truly yours, E. Maier Enclosure

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