3F1285-03, Forwards Fire Protection Evaluations 4, Domestic Water Supply to Nuclear Svc & Decay Heat Seawater Pump Bearings & 5, Crystal River Unit 3 Hose Station Length Discrepancies. Fee Paid

Forwards Fire Protection Evaluations 4, Domestic Water Supply to Nuclear Svc & Decay Heat Seawater Pump Bearings & 5, Crystal River Unit 3 Hose Station Length Discrepancies. Fee Paid

ML20138N682
Person / Time
Site:	Crystal River
Issue date:	12/19/1985
From:	Westafer G FLORIDA POWER CORP.
To:	Stolz J Office of Nuclear Reactor Regulation
Shared Package
ML20138N683	List: 3F1285-03, Forwards Fire Protection Evaluations 4, Domestic Water Supply to Nuclear Svc & Decay Heat Seawater Pump Bearings & 5, Crystal River Unit 3 Hose Station Length Discrepancies. Fee Paid ML20138N694
References
3F1285-03, NUDOCS 8512240109
Download: ML20138N682 (9)

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Florida Power-CCRPOR ATION December 19,1985 3F1285-03 Director of Nuclear Reactor Regulation Attention: Mr. John F. Stolz PWR Project Directorate No. 6 U.S. Nuclear Regulatory Commission Washington, DC 20555

Subject:

Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 Appendix R/ Fire Protection Evaluations

Dear Sir:

Attached are evaluations four and five of Fire Protection features at Crystal River Unit 3 (CR-3).- The Florida Power Corporation (FPC) staff, with the assistance of -

fire protection enginee. ring consultants and our architect engineer, has evaluated these features and has determined that they provide an acceptable level of protection for safe shutdown capability at CR-3. We request that these evaluations be forwarded to the appropriate NRC Staff' for review, evaluation, and concurrence.

By letter dated July 25,1985 (3F0785-31), FPC submitted evaluations one, two., and three. In accordance with 10 CFR-170, attached is check number 788935 for the one hundred fifty dollarr. ($150) application fee for the review of these evaluations.

Should you have any questions or require further information, please contact this

. of fice.

Sincerely,

. ff.

G. R. Westafer Manager, Nuclear Operations Licensing and Fuel Management SCP/feb "

8512240109 851219 PDR ADOCK 05000302 Attachments F PDR on -

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GENERAL OFFICE 3201 Thirty fourth Street South. P.O. Box 14042 St. Petersburo. Florida 33733 813-866-5151

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' FIRE PROTECTION EVALUATION M DOMESTIC WATER SUPPLY TO NUCLEAR SERVICES

- AND DECAY HEAT SEAWATER PUMP BEARINGS DESCRIPTION OF ISSUE:

In accordance with the requirements of 10 CFR 30, Appendix' R, the Nuclear

. Services seawater pumps and the decay heat seawater pumps are considered hot and '

cold shutdown equipment, respectively. Both sets of pumps are provided with

. bearing flush water from the domestic water system, with back-up from the Nuclear Services closed cycle cooling water system (NSCCCWS). Based on vendor Info mation, the Appendix R sau shutdown analysis for Crystal River 3 (CR-3) determined ' that neither flush water system was necessary to support safe shutdown. . Through further . discussion between Engineering and Operations questioning the validity of the vendor information, it was found that, in fact, without either A'or B domestic water pump, or without opening of either redundant back-up supply valve from the NSCCCWS, the seawater pumps would fall. None of' the redundant bearing flush water systems were analyzed for the effects of fire.

CORRECTIVE ACTIONS:

-Upon discovery of this situation, an immediate check was performed to determine the routing of. cables for the domestic water pumps. The domestic water pumps, their cables and power supplies are all located in areas that are being covered by 20 minute roving fire watches. These~ fire -watches are compensation for NRC-approved schedular relief to complete wrapping of safe shutdown cables by March 31,'1986.

Modifications are planned which will provide bearing flush water from the pumpage of the seawater pumps themselves.' This will make the domestic water and NSCCCWS supplies unnecessary for safe shutdown. These modifications will be

- completed by March 31, 1986. Roving fire watches will continue in the areas containing components necessary for maintenance of the current bearing flush water supply until modifications are complete.

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EVALUATION:

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dhe domest1c water pumps, their cables and power supplies are all located in areas -

Jcovered by roving fire watches. . The roving fire watches visit all areas once every

[ D20 minutes and look for evid$nce of fire. These areas are also providedlwith

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automatic fire detection ~ and automatic wet pipe sprinklers. Alternate sources of

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- bearing; flush ' water are . available to . the . seawater pumps from the NSCCCWS through redundant motor-operated valves. ' Depending onL fire location, one of these valves - could be ~ either ; remotely ' opened or opened manually at the valve.

Redundancy,~ coupled with the protection provided to -

1)' ~ assure that any fire is quickly found, and-2)- assure any fire found is quickly suppressed, iassures'that until modifications are made, that safety shutdown capability.will be

-preservsd.

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FIRE PROTECTION EVALUATION #5  ;

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L CR-3 HOSE STATION LENGTH DISCREPANCIES

[ DESCRIPTION GP ISSUEi In;thiSafety;Evalitation Report (SER) for BTP 9.5-1, Appendix A (Fire Protection Issues) date' d July 27/1979, the subject of existing. fire suppression h'se o stations is.

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- addressed in two places. Under Section 3.0,' Summary of Modifications. Item 3.24, eInterior fire hose stations. FPC was instructed to:

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~" Verify that all safety-related areas including the control complex .

[  : can be reached with at least one effective fire hose stream utilizing no'~more than' 100 feet of hose. - (4.3.1.4)"

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. [In'Sectioni.0, Evaluation of Plant Features, Subsection 4.3.1.4, Interior Fire Hose

" htlons, the.NRC states,'in ' par.t:: }

"There is" insufficient fire hose on: the reels to. reach all areas; however, plant firefighting procedures call for' thel fire brigade to

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. respond with additional woven Jacketed fire hose to be attached to the The

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t hard rubber ; hose if . necessary ,to provide adequate length.

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- licensee has verified that, with this: arrangement, all safety-related areas, including the control complex, can be reached with at least one i effectkve~ fire hose ' stream utilizing no more than 100 feet of hose.'

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. The 'lleensee has. proposed to install a ' standpipe with a'sultable number of :tations inside the reactor building. .

LWe". find .; that, ' subject ! to ; the above J described ? modification, . the' tinterior zfire hose stations satisfy the objectives identified in Section 2.2 of this report and are, therefore, acceptable."

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M JA search - of ^ fire . protection correspondence did not disclose 'any in which FPC .

provided this'spedific verification prior 'to issuance of the SER. By letter dated

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July i 23,11980, FPC listed Item 3.24, along with' a number of other items, in tabular.

form Indicating closure. The table is provided at ' Attachment l'.

In' July L1985Lin preparation for an NRC Fire Protection / Appendix R inspection,

FPC conducted a plant walkdown'which identified two safety-related areas which could not be reachsd with 100 feet of h'ose. Safety-related areas were adequately.

Ip[otected since the fire brigade response carts are equipped with additional lengths E of hose'which can be utilized if necessary.

CORRECTIVE ACTIONS:L FPC utilized a; fire'prothetion engineering contractor. to evaluate the effects of

Dusingil'o nger hose on"the existing hose stations. ' That evaluation is included as

' Attachment 2'. The evaluation demonstrated that an eff'ective hose Ocam will be

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prov'ided from any hose' station using -150 feet of hose. FPC has added hose'to

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Lthose' stations ~ requiring more than ~100 feet of hose to reach safety-related areas.

[ New hose is being procured to equip all hose stations with 150 feet of hose.

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3- EVALUATION: -

iThe . stand pipe. system at Crystal' River . Unit 3 (CR-3) is designated' as a Class II

. sy' stem'in accorc'ance with NFPA 14. : Class II systems are designed for use by

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untrained personnel such as building. occupants and are limited by NFPA 14 to

• _ Lutilizirig 100 feet of hose or less tThe CR-3 hose stations are used by trained fire

, brigade' personnel only; general employees are instructed to use fire extinguishers

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and awalt fire brigade response. It is our position that use of 150 feet of hose on tour system is an acceptable alternative since:

J1) L Adequate water : supply - exists (flow rate and pressure) to provide an effective hose' stream from any hose station in the plant through 150 feet of hose, and

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f 2) ' ./ Hoses are used only by trained f' ire fighting personnel with the

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hose.

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ATTACHMENT 1 'l 1

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TABLE l' '

J STATUS'0F ." IRE PROTECTION MODIFICATIONS -

d MODIFICATIONS ALREADY COMPLETED

'SER ITEM M0blFICATION COMPLETION DATENRC APPROVAL DATE PRIORITY FOR REVIEW /M00!FICATION 3.3 3.4 All these modifications NRC approved. Not applicable 3.9 are completed as of these in the since already July 1, 1980. SER. installed.

3.11 3.13 l

'3.16 l 3.19

• 3.21.1 3.21.3 i

3.22 3.24 "

Legend:

Priorities'are based upon lead time for all items, except for Item 3.1; priority for Item 3.1 is based upon both lead time and safety consid-erations.

Highest Priority .1 Higher Priority -2 High Priority -3 Low Priority -4 Lobo (FireProt)DN97-2

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. ,,qe e 8 ATTACHMENT 2

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