ML17266A140

Forwards Design Criteria Re Fire Protection Review,In Response to NRC 800124 Request.Describes Automatic Sprinkler Sys,Gaseous Suppression Sys & Containment Hose Stations

ML17266A140
Person / Time
Site:	Saint Lucie
Issue date:	01/31/1980
From:	Randy Hall BROOKHAVEN NATIONAL LABORATORY
To:	Ferguson R Office of Nuclear Reactor Regulation
References
NUDOCS 8002080611
Download: ML17266A140 (10)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR'80 02080611, DOC ~ DATE 80/01/31 NOTARIZED: NO DOCKET PAt'ELe50~335 St Lucre Plantg Unit l,i F'lorida Power Il Light Co, 0'5000335 50~389 St ~ Luc'ie Plantg Onit 2i Flor'ida Power Light Co ~ 05000389 AUTH'AME aUl HOR'F'FILla'rlON HALLtR~F->> Brookhaven Na'tioria1 Laboratory RKC I I, AAME RECIPIENT AFFILIATION FEACUSO¹R,L.

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Plant 'Systems"Urancli

SUBJECT:

Forwards design criteria re fire protection review in response to hlRC 801)124'equest, Describes automatic spr inkier sys~gaseous 'suppressioz sys L cont'aainment hose"st'ations, DISTRIBUTION CODE: A006S COPIES RECEIVED:LTR ENCL SIZE:

TITLE: Fire Protection Information (After $ 8suBnce'o7 OP, Cic,)

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RECIPIENT COPIES RECIPIENT COPIES ID COOE/NAME CgfTN ENCL ID COOL/NAME L'fTR"EACL ACTIONt os sc Qjp, INTERNAL; E 1 02 NRC PDR 1 1 0 2 12. AVAIL 8YS OR 2 10 f'LANT SYS BR 5 19 AAMBACR i 1 20 MURAAARAgR 1 OELD 0 EXTERNALS 03 LPDR 1 l OQ NSIC 1 1 22 ACRS 16 16 I'@ g~

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TOTAL NUMBER OF COPIES 1eEQUIRKD: LTTR ~ ENCL

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IIljn BROOKHAVEN NATIONAL LABORATORY ASSOCIATED UNIVERSITIES, INC.

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Upton, New York 11973 Department of Nuclear Energy (516) 345-2144 January 31, 1980 Mr. Robert L. Ferguson Plant Systems Branch U.S. Nuclear Regulatory Commission Washington, D.C. 20555 RE: St. Luci e, Fire Protection Review

Dear Bob:

We completed all of St. Lucie design review and supplement items assigned to us for this six-month period on January 10, 1980. However, Mr. Sylvester had asked for some design criteria on January 24, 1980. These were telephoned to him on that date; the copies attached are to confirm these inputs.

Very truly yours, M. P. W~~g Robert E. Hall, Group Leader Reactor Engineering Analysis REH:EAM:sd attachment cc.: R. Cerbone wo/att.

W. Kato E. MacDougall V. Panciera wo/att.

E. Sylvester

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ST. LUCIE Design Criteria Automatic S rinkler S stems Containment Penetration Area Automatic sprinkler systems shall be of the wet pipe or pre-action type conforming to the applicable provisions of NFpA

13. The system shall be designed to produce a discharge den-sity of .l5 gpm/sq. ft. over the entire area occupied by the cabling penetrating the containment wall. Sprinkler heads shall be intermediate temperature rating 175'F to 225'F. and where installed in open areas shall be provided with heat collecting shields or be of the type incorporating a built in shield approved for this application....The -system shall be provided with waterflow detection devices arranged to annunci-,

ate an alarm in the control room upon operation of the sprink-ler system.

ST. LUCIE Design Criteria Gaseous Suppression S stems Cable Spreadin 6 Switchgear Rooms Carbon Dioxide total flooding systems shall be designed to the applicable requirements of NFPA 12 with provisions for two discharge applications each capable of producing a 50%,

gas concentration within the room. Where necessary to achieve' reasonably tight enclosure, actuation of the sys-tem shall automatically close ventilation dampers, doors and shut down .fans in order to maintain concentrations of C02 in the room for at. least 30 minutes. Automatic actuation of the system shall be initiated by cross zoned or matrix arranged early warning fire detectors conforming to the applicable pro-visions of NFPA 72E with alarm annunciation locally and in the control room. Precautions shall be taken to prevent over-pressurization of the enclosure, static electrical charge building up and the chilling effect to instruments and equip-ment from gas discharge. Personnel safety shall also be con-sidered. Discharge tests shall be made to verify that the system performs as specified.

ST. LUCIE Design Criteria Gaseous Suppression S stems - Cable S readin and Switch ear R ooms Halon 1301 total flooding systems shall be designed to the applicable requirements of NFPA 12A, with provisions for two discharges. Initial discharge shall produce a 7% halon concen-tration with a soaking time of 20 minutes. The reserve supply shall be capable of a 5% halon concentration for 10 minutes.

Automatic actuation of the system shall be initiated by cross zoned or matrix arranged early warning fire detectors con-forming to the applicable provisions of NFPA 72E with alarm annunciation locally and in the control room. Provisions shall be incorporated, in the design to automatically close ventilation dampers, doors and/or ventilation fans in order to maintain the halon concentrations in the room for the spec-ified soak times. Discharge- tests shall be-made -to=verify the system performa as specified

ST. LUCIE Design Criteria Containment Hose Stations 5.11

)manual lose stations within containment should be located along normal access ways and sufficient in number so all areas of the enclosure can be reached. The system should

-conform to the applicable requirements of NFPA 14 for Class II service and dry standpipe requirements. Each hose sta-tion shall be equipped with a suitable hose rack with 75 feet of l-l/2-inch synthetic jacket lined hose attached to a combination off-fog-straight stream nozzle. Dry standpipe systems shall have adequately sized connections to the plant fire protection water system with a control valve for pressurizing the system. The control valve shall be conven-iently located near the access port, reading "Containment Dry Standpipe System".

ST. LUCIE Design Criteria Automatic Sprinkler S stems Cable loft areas Auxiliar Buxldih , 19.5'levation Automatic sprinkler systems shall be of the wet pipe or pre-action type conforming to the applicable provisions of NFPA

13. The system shall be designed to produce a discharge den-sity of .15 gpm/square ft. over the entire protected area.

Sprinkler heads shall be ordinary temperature rating 135 P to 165 P. The system shall be provided with waterflow detec-tion devices arranged to annunciate an alarm in the control room upon operation of the sprinkler system.

ST. LUClE Design Criteria Automatic Sprinkler S stems Char in Pum s Automatic sprinkler system shall be of the wet pipe or pre-conforming to the applicable provisions of NFpA 13. The system

'shall be desi signed to produce a discharge density of .30 gpm/

square foot over thhe entire area oZ the charging pump cubicles.

Sprinkler heads shall be ordinary t'emperature rating 135'F to 165'F. The system shall be provided with waterflow detection devices arranged to annunciate an alarm in the control room upon operation of the sprinkler system.