ML19289C315
| ML19289C315 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 01/03/1979 |
| From: | Clayton F ALABAMA POWER CO. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| References | |
| TAC-8671, NUDOCS 7901090155 | |
| Download: ML19289C315 (40) | |
Text
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January 3, 1979 Docket Nos. 50-348 50-364 Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Attention: Mr. John F. Stolz
Dear Sir:
Joseph M. Farley Nuclear Plant - Units 1 & 2 Amerded Fire Protection Report Enclosed are forty (40) copies of Amendment 4 to the report entitled " Joseph M. Farley Nuclear Plant Fire Protection Program Re-evaluation" that was submitted to the NRC in our letter of September 15, 1977. A=endment 4 reflects resolution of previously open items. If you have any questions, please advise. Yours very truly, F. L. Clayto , Jr. FLCJr/HRF/m=b Enclosures cc: Mr. R. A. Thomas Ftr. G. F. Trowbridge Mr. A. Schwencer P
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. e Farle'y Nuclear Plant Fire Protection Program Reevaluation DATE: January 8, 1979 INSERTION INSTRUCTIONS Only numbers of right-hand pages are being given. Section/ Procedure Instruction Record of Revision Replace 4-21 through 4-26c Rep!sce with 4-21 through 4-26i 4-45/46 Replace 4-53/54 Replace 4-95/96 Replace 4-137 Replace 4-145 Replace 4-155f Replace 4-161 Replace 4-167 Replace 4-169 Replace 4-237 Replace 4-243 Replace 4-259 Replace s'
;4,
RECORD OF REVISION Issue Date Initial September 1977 Amendment 1 February 1978 Amendment 2 July 1978 Amendment 3 October 1978 Amendment 4 January 1979
4.2 Proposed t!odification Summary t!odifications to the design of the Farley Nuclear Plant have been proposed based on the results of the fire protect ion reevaluation described in this report. Table 4.2-1 is a summary of the principal modifications. Table 4.2-2 l3 is the schedule for i nplementation of these modifications. These modifi- is cations are described in detail in Section 4.3.5. The criteria used to establish the mod _fication requirements are the same for both Unit 1 and Unit 2. Due to differences between units, particularly in the area of cable routing, the detailed modifications for Unit 2 may be 2 different from Unit 1. Where sprinkler systems or area detection systems are noted in Table 4.2-1, the individual fire area hazards analysis should be consulted for the specific sprinkler or detector system locations within the fire area. The sprinkler systems do not necessarily cover the entire fire area. Amendment 3 10/78 4-21 Amendment 2 7/78
TABLE 4.2-1 PROPOSED MODIFICATION
SUMMARY
AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposeo Modification l4 1 H recombiners, waste gas de- -- 3 Hr rated fire dampers between 2 cay tank, waste monitor tank Room 169 and Room 163 and pump, RHR pumps, RHR Heat -- Area Detuction System, except in exchangers, waste evaporator rooms noted in hazard analysis. 4 feed pump, Containment spray -- Automatic water soppression sys-pumps. tem in Room 223.
-- Fire barriers per section 4.3.5.1. l3
-- Fire barrier over self-expanding 4 cork.
2 h w 2,3 Area Number Not Used 4 Waste gas decay tanks, let- -- Area Detection System except in 4 down heat exchanger, Boric rooms noted in hazards analysis. acid transfer pumps , boric -- Sprinkler systems in Rooms 161, acid tanks. Holdup tanks, 162, 163, 168, 175, 208, 209, 222, l3 waste evaporator package, 322, 402, 404, part of 160, part 3 4 miscellaneous equipment. of 207, 2403 (Unit 2 oaly).
-- Sprinklers for concealed space in 3 rooms 415 & 417.
-- Additional hose stations to satis-ggg fy requirements of NFPA-14.
ggg -- Fire barriers per section 4.3.5.1. l3 g- g g- -- Fire barrier over self-expanding ggg cork. 4 nnn -- Additional fire damper doors for
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Mw- area boundary penetrations. u-~ my. O O O 9 O O O
TABLE 4.2-1 . (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Descrip_ tion / Major Equipment Proposed Modification
-- Class B UL rated fire damper doors for penetrations through duct chase walls (Room 215) into Area 4. 4
-- Upgrading walls and penetrations into Room 215 to 2 hour rating. 2 5 Charging pumps, contaminated -- 3 Hr. rated fire dampers between storage area. Room 172 & Room 223.
-- Automatic water suppression system
,, in Rooms 172 & 174. a 43
-- Fire barriers per section 4.3.5.1. l3
-- Area detection system.
-- Fire barrier over self-expanding 4
cork. 6 Component cooling water pumps -- Automatic water suppression system and heat exchangers, auxiliary in Rooms 185, 189 & 190. 3 feedwater pumps. -- Fire barriers per section 4.3.5.1.
-- Area detection system except in rooms noted in hazards analysis.
-- Relocation of one cable to avoid 4 ffk congested cable area in CCW pump E.E.R. rooms.
RRR aaa 7 Area Number Not Used nnn 8 Cable Chase -- Add Automatic sprinkler system. 215 C- -- Area Detection System. E 'y 5
T4BLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modifi..; tion
-- Replace steel plate between Rooms 3 116 & 335 with Class A door.
9 Cable Chase -- Add Automatic Sprinkler System.
-- Area Detection System.
-- Fire barriers per section 4.3.5.1. l3
-- Reroute one train A cable. 54 y 10, 11 Area Number Not Used l>
l$ E 12 (Unit 1 only) Hot shutdown -- Area Detection System. 2 panel. -- Relocate Selcetor Switchea (One Train)
-- Modify Instrumentation to Panel to make independent of cable spreading room.
-- Seal Penetrations in Area boundary.
-- At Unit 2 fuel load, open the seal-ed door between Room 254 & Unit 2. 4 13 Vertical Cable Chase -- Area Detection System.
-- Automatic Water Suppression System.
-- Sealing penetration to turbine ggg building.
-- UL Class A door on chase to turbine 3
ggg y g g- building. ggg -- Fire barriers per section 4.3.5.1. """ -- Seal penetrations between area 20 4 N L) o and rooms 211 & 228. % 5 C. M13
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TABLE 4.2-1 . (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area i No. Description / Major Equipment Proposed Modification 14 Computer Room -- No changes 15 Communication Room -- 3 Hour Rated Fire Dairsers in Ducts for battery room exhaust.
-- Selector switches relocated from l4 hot shutdown panel to this room. E 16 Hattery Room -- No changes.
z~ 4, 17 Battery Room -- No changes. 2 w 18 DC Switchgear Room -- No changes. 19 DC Switchgear Room -- No changes. 20 Battery Room & Corridors l4
-- Seal Penetrations in Area Boundary.
-- Automatic Water Suppression systems in Rooms 211, 244, 245 & 234, 210, 4 228.
-- Area Detection System.
-- Water llose Station in Room 234.
-- Fire barriers per section 4.3.5.1.
3 $$N ggg 21 Switchgear Room -- Fire barriers per section 4.3.5.1. ggg -- Area detection system. E4 nn n 22 Area Number Not Used u v 4-O stae
TABLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modification 23 Switchgear Room -- No Changes 24, 25, 26 27, 28, 29 Area Number Not Used 30 Cable Chase -- Area Detection System.
-- Automatic Water Suppression Systeu.
-- Replacement of steel access plates between Room 249 (Area 30) & Rooms 235 (Area 23) & 346 (Area 41) with
, UL Class A doors.
l, o' 31 Cable Chase -- Area Detection System. l4
-- Automatic Water Suppression System. 2
-- Replacement of steel access platc; between Room 250 (Area 31) & Rooms 4 235 (Area 23) & 346 (Area 41) with UL Class A doors.
32, 33 Area Number Not Used l4 34 Penetration Rooms -- Seal Penetrations in Room 317. 3 Hour Rated Fire Dampers in Ceil-ing of Room 317 & 322. l4
-- Detection System in Room 317.
~
-- Fi re ba rriers per Section 4.3.5.1. l3 kkk g g, g,
-- Automatic Water Suppression System in Room 334. [4 ggg -- Half hour covering over self-expand-ggg ing cork on area boundary.
ww-CiE;t: ~ - e e e e e e e .
TABLE 4.2-1 (' Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modification 35 Penet. ration Rooms -- Half hour covering over self-ex-panding cork on area boundary. 36, 37, 38 Area Numbers Not Used 39 New Fuel Storage -- Area Detection System.
-- Portable Extinguishers in Room 446.
-- Replacement of New Fuel Storage Racks l4 E
i h 40 Cable Spreading Room -- Automatic Water Suppression System.
- . otect termination cabinets f rom 2I water damage. [3
-- Spray or fireproofing to assume full coating of exposed structural 4 members.
41 Load Center Rooms -- Fire barriers per Section 4.3.5.1. l3 Switchgear & MG Sets -- Damper Relocated to Fire Area Boundary. [4 l4 42 Corridor -- Seal Penetrations in Area Boundary. ggg -- Water Hose Station in Area. ggg -- Automatic Water Suppression System. g g g. -- Fire Itarriers per section 4.3.5.1. 54 eee aoa nnn 43 Miscellaneous Areas -- No changes. w u c. M33 m
TABLE 4.2-1 (Continued) AUXILIARY BUILDING i Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modification 44 Control Room & Adjoining Rooms -- Addtional extinguishers.
-- Additional hose station outside en-trance.
-- Enclosure of kitchen, kitchen clo,-
et & storage room to one-hour rat- l4 ing. g
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-- Additional detection above false ceiling & in kitchen offices & 3
- storeroom.
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$ 45, 46, 47 2
48, 49, 50 Area Numbers Not Used 51 Control Room Ventilation -- Add Detection System. Equipment -- Relocate hose to entrance.
-- Automatic water suppression around power cable in Room 501, 3
-- Fire barriers per Section 4 3.5.1.
-- Relocate fire dampers to fire area 4 boundary.
52 Area Number Not Used III 53 Elevator Machine Room -- No changes. III 54 Elevator Machine Room -- No changes. nnn " u #' 55 Containment -- Ilose Stations as required. l4 ZEC ab32 O O O O O O O .
O . TABLE 4.2-1
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(Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modification
-- Oil Containment and Collection Sys- l4 tem for Reactor Coolant Pumps.
2 - 89 (Unit 2 only) Lube Oil Storage -- Dike in lube oil storage room. Auxiliary Building General -- Eight hour rated batteries for emergency lights.
-- Provide proper UL rated doors for ,, the following:
d3 a. between R.184 and R.162 8' b. between R.172 and R.161
- c. replace steel plate between Rooms 116 and 335 with UL A door. 2
- d. between R.253 and R.211 4
- e. between Rooms 464 and 466 and the outside
- f. between R.300 and R.319
- g. between R.219 ar.d R.254
- h. between R.249 and R.34b
- i. between R.250 and R.346
- j. between R.317 and R.322
- k. between R.346 d Rooms 249 and 250.
f( l. between R.319 and R.300 gg m. between Area 56A and 56B gg n. between R.228 and R.229 m o o. between R.228 and R.233 "[ p. between R.335 and R.116 53
TABLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed Modification
- q. between R.226 and R.211
-- Sealing of penetrations in fire area boundaries.
-- Placement of portable smoke removal fans & hose.
-- Additional hose stations to meet NFPA-14.
4
-- Additional fire extinguishers to meet NFPA-10.
T' -- Delete automatic closure of fire s"- main motor operated valve & raise 2 alarm setpaint to 2700 gpm.
-- Install new larger diameter fire mains in auxiliary building & icter-connect water supplier.
56 A Switchgear Room - Train A -- Class A Door between Area 56A & Fire Zone 56B (Foyer).
-- Area Detection System.
56 B, C Foyer & Switchgear Room Train B -- Area Detection System. 57 Diesel Generator 2C -- No changes. $i e e 58 Diesel Generator IB -- No changes. EE ES 59 Diesel Generator 2B -- No changes. 55 ~> ss - O O O O O O O .
TABLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major E3tepment Proposed Modification 60 Diesel Generator IC -- No changes. 61 Diesel Generator 1-2A -- No changes. 62 Day Tank Room 2C -- No changes. 63 Day Tank Roc,m IB -- No changes. 64 Day Tank Room 2B -- No changes. O h 65 Day Tank Room IC -- No changes.
- 2 66 Day Tank Room 1-2A -- No changes.
Diesel Generator-General -- Provide isolation of Diesel Gener-ator PT circuits from cable spread-ing room.
-- Link diesel generator building fire detection circuit supervisory alarm signal to CO tr uble alarm in Con-2 trol Room.
4
-- Provide a new fire hydrant and hose Ei !Y house inside security fence at the
$$ diesel building. II -- Additional hose stations in the switchgear rooms with 100 ft. hoses. nn u3
TABLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description /flajor Equipment Proposed ?!odification 71 Corridor -- No changes. River Water Intake 6/, 68, 69, 70 Intake Pumps & Switchgear -- No changes. Service Water Intake 72 Fire Zones Zone A pump room -- Fire Barriers between pump trains, detection system and curbs. l4
-- Automatic water suppression system.
L l3 R Zone B-Switchgear -- No changes. 2 Zone C-4kV Disconnect -- Add Detection System. Switch - Train B Zone D-4kV Disconnect -- Add Detection System. 4 Switch - Train A Zone E-Switchgear -- No changes. ggg moo E. E 5. 73 Battery Room -- No changes. EEE SSS 74 Battery Room -- No changes. wwe u- Service Water - -- Add yard hydrant & hose station out-DRD General side building. cn g e O O O O O O O .
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TABLE 4.2-1 (Continued) AUXILIARY BUILDING Fire Area Plant Fire Area No. Description / Major Equipment Proposed ?!odification Turbine Building - 81, 82, 83, 84, 85, Misc. Turbine Building Equipment -- No Changes 86, 87, 88 2 Fire Protection Pump Building NA Fire Pumps -- Add separation barriers. I'
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i a M M O O O O O O O
TABLE 4.2-2 IMPLEMENTATION DATES FOR PROPOSED MODIFICATIONS Item Date Unit 1 Unit 2
- 1. Sprinkler (All systems) End of 2nd refueling outage (U Before fuel load Room 23't, Area 16 Spring, 1979 N/A
- 2. Yard Hydrants 11/1/79( N/A
- 3. Portable Extinguishers End of 1st refueling outage Before fuel load 4
- 4. Hose Stations 10/1/79(3) Before fuel load
- 5. Smoke Detectors 9/1/80(') 9/1/80
- 6. UL Rated Doors 12/1/79(5) Before fuel load
- 7. Penetration Seals 9/1/80 Before fuel load
- 8. Portable Smoke Removal 1/1/79 N/A 3
- 9. Term. Cabinet Water End of 1st refueling outage .- e fuel load Protection
- 10. Damper Rework End of 2nd refueling outage ( ) 4/15/80 4
- 11. Eight Hour Battery Packs End of lat refueling outage Before fuel load
- 12. Hose Stations in CTMT End of 2nd refueling outage Before fuel load
- 13. RCP Oil Collection End of 2nd refueling outage Before fuel load
- 14. Fire Pump Barriers 2/1/79 N/A
- 15. DG Pot Transformer End of 1st refueling outage Before fuel load Circuit 4
- 16. Barriers 9/1/80( } 9/1/80
- 17. Inside Water Supply 10/1/79 Before fuel load
- 18. HSP Switch Relocation End of 2nd refueling outage Before fuel load
- 19. HSP Instrument Mods. End of 2nd refueling outage Before fuel load
- 20. Barriers in S. W. End of 1st refueling outage Before fuel load Structure
- 21. Fireproof Control Room Kit 6/1/ , ' N/A
- 22. Modify New Fuel Storage End of 2nd refueling outage .'/ A 4 a
Racks Amendment 4 1/79 4-261 Amendment 3 10/78
TABLE 4.2-2A UNIT-1 WORK PRIORITIES Note Fo. Item (from Table 4.2-2) Priority of Work Start 1 Sprinklers (a) Hall on 121' El. outside hot shutdown panel room (1-5-79)f-(b) Cable spreading room (Room i 318) (c) Areas requiring new smoke detection systems (d) Other areas 2 Yard Ilydrants (a) Service kater Structure (10-24-78)? (b) Diesel Generator Building (12-19-78)i 3 Hose Stations Schedule in similar sequence to sprinklers. 4 Smoke Detectors (a) Spent fuel area - Room 240 4 (12-4-78)? (b) CCW lleat Exchanger Room - Room No. 185 (c) Hallway on 121' El. outside hot shutdown panel (d) Filter removal hatch room - Room No. 404 (e) Other 5 UL Rated Doors (a) Upgrade existing doors to appropriate UL class (11-7-78)* (b) Replace access hatches with UL doors 6 Penetration Seals (a) Seals where none are presently installed (b) Upgrade existing seals 7 Damper Rework (a) Dampers where none are pre-sently installed (b) Relocate existing dampers to fire boundary wall 8 Barriers (a) Room 185 i (b) Hallway outside hot shutdown panel (c) Other ! Dates in parentheses are the start dates for installation work already in progress. l 4-26j Amendment 4 1/79
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Eenbent 2 U78 Figure 4.3-12 Location of Fire Protection Equipment - Unit 1 Auxiliary Building - Plan at P.1 155'-0" 4-53/54
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Amendment 2 7/78 Figure 4.3-33 Location of Fire Protection Equipment - Unit 2. Auxiliary Building - Plan at El 155'-0" 4-95/96
4.3.5 Fire Area Hazard Analysis This section provides an area-by-area analysis of the fire hazards and potential consequences for fire areas of the Farley Nuclear Plant. For each area or zone, the major equipment contained and its safety function are given. Installed and proposed fire protection features are provided and design features relating to fire safety of the area are provided. An inventory of combustible and flarnmable material is also given. The possible consequence of the fire in each area is indicated, and.the results of a fire are discussed. Evaluation sheets follow for each fire area or zone. Refer to Figures 4.3-3 through 4.3-41 for plant location. 4.3.5.1 Proposed Modifications (Electrical) This section describes the criteria used and the modifications I proposed for the protection of safe shutdown related electrical cable from the effects of an exposure fire. The criteria used in the evaluation for protection of electrical cables from an exposure fire are:
- 1. Automatic sprinklers will be installed in areas con-taining electrical cable or equipment of both safe 3 shutdown trains where both trains are subject to a single exposure fire. Both trains are considered subject to a single exposure fire when they are separated by less than 20 feet of clear space. 2
- 2. In addition to 1 above, a double-thick barrier consisting of two layers of 30-minute-rated enclosure 3 will be installed around one train of electrical cable where the train-to-train separation is less than 20 feet. (Conduit is not considered as an enclosure and is treated as a cable tray.)
- 3. Where interferences or the presence of power cable prohibit use of the double barrier, a half-hour barrier will be installed around both trains of cable. When wrapping of power cables may cause acceleration of aging resulting from excessive heat buildup, other measures will be proposed.
- 4. Areas containing motor control centers or high voltage switchgear and the control room are excluded from the sprinkler requirements of item 1. (This exclusion applies in the vicinity of the switchgear or MCC only and does not exclude entire rooms.
- 5. The following are special-case exceptions to these rules:
Amendment 4 1/79 Amendment 3 10/78 Amendment 2 7/70 4-137
- a. Fire area 4, Room 163 and valve gallery to Room 153.
Train A cabte tray in the valve gallery is approxi-mately 12 feet from the train a tray stack in Room 163. No barrier in proposed. A sprinkler is proposed. Justification: The partial-height shield wall between the spaces assures that common exposure to to a single fire is not possible. No intermediate exposed combustible material is located between the trayr..
- b. Fire area 4, Room 160. Two train B trays are locat-ed approximately 17 feet from the nearest Train A cable. Sprinklers are proposed for the area. Wrap-ping the Train B control cable tray with a half-hour g
barrier (Tray BIIF-24 ) and the bottom and sides only 3 of the power cable trays (BDE-9 and 15) is proposed. Justification: The open-top barrier for the power cable assures that the cable will not overheat. It is approximately 12 feet above the floor and 5 feet below the ceiling. Thus the power tray is isolated from an exposure fire.
- c. Fire Area 72A, El. 167'0" room. Two trains of safe-shutdown-related cable approach within 8 feet of each other in the northeast corner of the room, approximately 25 feet above the floor. No sprinkler or barrier is proposed.
Justification: The height of the cables above the piping header room floor assures adequate isolation from an exposure fire,
- d. Fire Area 40, Room 318, Cable Spreading room. A sprinkler system will be added to this area, however, no fire barriers will be installed. 4 Jus ti fication: Upon completion of the proposed mod-ifications to the hot shutdown panel, Lho plant can be brought to cold shutdown with the cable spreading room destroyed.
O Amendment 4 1/79 Amendment 3 10/78 4-138
FIRE PROTECTION A detection system is proposed for this area. The detection system covers the entire area with the exception of rooms 114, 123, 126, 127, and 130 which are duct cad pipe choses and contain no flam- , mabi e ma terial . Two manual hose stations located in Rooms 103 and 110, three dry chemical portable extinguishers located outside Rooms 105 and 106 and in Room 107, and one CO2 portable extinguisher located in Room 110 are provided. A forwater hose use in thislocated area. inAn Room 209 (Area 1-4) and a C09 hose reel located in Room 161 (Area 1-4) are available automatic sprinkler system'is proposes for Room 223. Appropriate barriers are pro- 3 posed for electrical cable as required by Section 4.3.5.1. CONSEQUENCES OF A FIRE
, Hot shutdown equipment located in this area consists of electrical cable of a single train in Room 223.
L 3; A fire originating in this area will be contained within the area because of the low quantity of combustibles, the barriers, and the automatic water suppression system in the area of tendon access openings in Room 223. In addition, the proposed detection system for this area will provide early warning of a fire, allowing the fire brigade adequate time to extinguish the fire. Should the fire brigade need to remove smoke to extinguish a fire in this area, smoke removal equipment will be available. Should the fire brigade ese water to extinguish the fire, the water will be either pumped or drained to ggg the waste holdup tank or the floor drain tank. (k.k, Although thet e is hot shutdown equipment in this area, hot shutdown capability is maintained in the event ~@@ of a fire siace only one train of electrical cable would be affected by a fire. E5 eu. 4 OH Ob
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FIRE AREA 1 Combined with Fire Area 1-1 O O O O O O O 4-146/148 Amendment 2 7/78
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DESIGN FEATURES Construction: Floors and wall forming the area boundary are of reinforced concrete on the building roof. Portions of the area boundary along the containment wall which are also boundaries for other fire areas are proposed to have a miaimum half hour fire rated blanket installed over the self-expanding cork, Doors: Doors that are a part of the area boundary are either carrently UL Class A doors or are proposed to be upgraded to UL Class A doors, except for Class B doors to stairways or elevator shafts used for access and egress. Rooms 323, 324, 325, and 326 have UL Class B doors leading to Room 312. The door between rooms 309 and 327 is UL Class B. Doors in the area boundary leading to the outside are not labeled doors. Piping and Electrical Penetrations: Penetrations through the area boundary are either sealed to a three-hour fire resistance rating or sealing of the penetrations to a three-hour fire resistance rating is proposed. Ventilation: This area is served by both the radwaste and non-radwaste ifVAC systems. Fire damper / doors are either presently installed or proposed for duct penetrations through the area g boundary. u, m 2 Floor Drains: 111 4-in-diameter floor drains having a 100 gpm capacity each that drain to either the waste holdup tank or the floor drain tank. Fire Protect _an: A detection system is either currently installed or proposed for all rooms containing safe shutdown equipment or electrical cable. The detection system will cover the entire area with the exception of rooms 215, 217, 219, and 221 which contain no flammable 3 4 material. In addition, a detection system is proposed for the spent fuel pool area. Automatic water suppression is proposed in the following rooms: Room 161, 162, 163, 168, 175, 208, 209, 222, 322, 402, 404, 405, 415 (concealed space), 417 (concealed space), and 2403. The 3 kV disconnect switches in Room 161 have an automatic heat-actuated CO2 suppression system. Hose stations are either currently installed or proposed to satisfy @$g the requirements of NFPA 14. Appropriate barriers are proposed for electrical cable as @@@ required by Section 4.3.5.1. n nn CONSEQUENCES OF A FIRE This area contains electrical cable of both saf' shutdown trains and some electrical equipment. l3 Et ue3
tihe e both trains of safe shutdown cables could be affected bv a single exposure fire, the automatic water l3 suppression will quickly extinguish the fire. Should the automatic water suppression system not function, the currently installed or proposed detection systems provide early warning, allowing the fire brigade to ex-tir.guish the fire using either installed or proposed hose-station or portable extinguishers. Should the fire brigade use water to extinguish the fire, the water will be handled by the drain syatem. Should the fire brigade need to remove smoke to extinguish the fire, portable smoke removal equipment will be available. Although there is safe shutdown equiptent and cable in this area, safe shutdown capability is maintained based 2l3 on the following:
- 1. Only one train of electrical cable would be affected, and z~
- 2. A fire originating in this area vill be quickly detected and extinguished.
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FIRE AREA NO. 1-6 (2-6) - Auxiliary Buildine, El. 100'-0" - Contd. Room No. Shutdown Combustible Fire Load Max. Fire and/or Title Train Material Quantity (Btu /ft2) Severity 236 (2236) Duct Chase - None 0 0 0 2 241 (2241) Main Steam and - Cable insulation 1,384 lb 3,869 < 30 min Feedwater Valve Room 24; (2242) Pipe Chase - Cable Insulation 19 lb 1,287 <30 min 243 (224^) Pipe Chase Cable insulation 30 lb 1,670 <30 min ,7 DESIGN FEATURES Construction: Floors and walls forming the area boundary are of reinforced concrete or open to the outside. Doors: l'L Class A door between Room 185 and Room 116 (Area 1-8) and between Room 185 and Room 117 (Area 1-9), UL Class B door between Room 185 and Stairway No. 1, and a checkered steel plate at El . 155 '-0" in Room 195. A non-fire rated pressure-tight door between Room 241 and Stairway No. 1. Piping and Electrical Penetrations: Penetrations through the area boundaries are sealed with silicone foam or Nelson fittings. Ventilation: Normal supply and exhaust is by the non-radwaste ll&V system north of column line 7 and the 2 lower equipment room Il&V system south of column line 7 with the exception of Rooms 192 and 191 which have individual room coolers. Room 185 also has two room coolers. Fire dampers are provided in the duct ggg penetrations in Room 167. Fire dampers are provided ac duct penetrations in Roum 236 above El. 121'-0". ggg Fixed smoke removal capability is not provided. Rooms 241, 242, and 243 are vented to the atmosphere. W W {Y ggg Floor Drains: Eleven 4-in.-diameter floor drains having a 100 gpm capacity each are provided which drain nnn to sumps located in Rooms 185 (2 sumps), 191, 193, and 189. Each sump has two 100 gpm pumps that discharge to u s- to the floor drain tank. In Room 241 there are four 4-in.-diameter floor drains having a 100 gpm capacity gg that drain to the main steam room drain tank, which has a 65 gpm pump that discharges to the Turbine Room 333 drain system. mme
FIRE PROTECTION A detection system is proposed for this area. The proposed detection system covers the entire area , except for room 195 which contains no flammable material. Room 167 has a wet-pipe sprinkler system which activates a local fire alarn bell and trouble horn and annunciates in the control room. Heat detectors are provided in the 5 kV disconnect switch in Room 185 which alarm both locally and in the control room. The 5 kV disconnect switches are provided with a total flooding CO2 system which is activated by the heat detectors. Two water hose stations, located in Rooms 185 and 189, are provided. The hose located in Room 185 is to be relocated to the wall between Rooms 185 and 189. A portable dry chemical extinguisher is located in Room 185 outside c; Room 167. A hose station is proposed in Room 234 (Area 1-20) which will be available for use in this area. Also, the hose located in Room 345 (Area 1-42) is available for use in this area. Automatic we . suppression systems are proposed for '3 Rooms 185,189, and 190 to protect electrical sabic from exposure fires. Appropriate barriers are proposed for electrical cable as required by section 4.3.5.1. Additionally it is proposed to reroute the train B auxiliary feedwater pump room cooler power cabic to preclude a single fire damaging redundant 4 electrical cables. CONSEQUENCES OF A FIRE i g Shutdown equipment located in this arco cow ice af .wxiliary feedwater pumps, component cooling water 3 N pumps, and electrical cable. A fire originating in this area would be contained in the area because of the quantity of combustibles and the barriers, in addition to the automatic water suppression systems 1a areas of cable concentrations. In addition, the proposed detection system will nrovide early warning of a fire, allowing the fire brigade adequate time to extinguish a fire using i manuai equipment discassed above. Should the fire brigade need to remove smoke to extinghish a fire in this area, smoke removal equipment will be available. Water used in extinguishing a fire will be drained to either the floor drain tank or the Turbine Room drain fkk system. ete ggg Although there is safe shutdown equipment located in this area, safe shutdown capability is maintained based 3 ooo on the following:
- 1. only one train of electrical cable would be af fected, and C
ygg 2. only one auxiliary feedwater pump or component cooling water pump would be affected by a single fire. O O O O O O O .
CONSEOCENCE OF FIRE The only safe shutdown equipment located la this area is electrical cable of a single train. l2 3l4 A fire originating in this area would be contained in this area due to the barriers and the automatic water suppression system. In addition, fire stops are locatet every 20 feet along vertical cable trays. Should the automatic water suppresion system not function. the detection system will provide early warning, allowing the fire brigade to extinguish the fire using the proposed hose station in Room 339 2 (Area 1-42) or the existing hose located in Rcom 185 (Area 1-6). Should the fire brigade need to remove socke, smoke removal equipment will be available. The water used in extinguishing the fire will be held in the bottom of the cabic chase and portable pumps will be used to remove it. Although there is safe shutdown electrical cable in this area, safe shutdown capability is l2 ]3 maintained since the fire would be contained and extinguished, and there is only one train I' of electrical cable in the area. 5
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J. M. FARLEY NUCLEAR PIluNT FIRE AREA HAZARD ANALYSIS FIRE AREA NO.1-9 (2-3) - Auxiliary Building El. 83'-0", El 100'-0", El 121'-0", and El 139'-0" l2 l3 Shutdown Combustible Fire Load Max. Fire Room No./ Title Train Material Quantity (Ftu/ft2) Severity B Cable insulation 4,489 lb 2,921,199 <9 hr 117 (2117) Cable Chase 2,135 lb 180,180 <2 hr 2 3 A,B Cable insulation 246 (2246) Cable Chase a DESIGN FEATURES I H Construction: Floors and walls forming the area boundary are of reinforced concrete. Q Docrs: Airtight Class A doors between Room 117 and Room 185 (Area 1-6) and between Room 117 and 2 Room 335 (Area 1-41), an airtight Class A door between Roora 246 and Room 343 (Area 1-41). Piping and Electrical Penetrations: All penetrations through the area boundary are sealed with silicone foam or Nelson fittings. Ventilation: There is no normal ventilation for this area. Fixed smoke removal capability has not been provided. Floor Drains: There cre no floor drains. $ $ FIRE PROTECTION 8 In addition, @ g A smoke detection system and automatic water suppression system _re proposed for each room. 2 @@ the water hose located in Room 185 (Area 1-6) is available for use as a backup. A water hose proposed "" for Room 339 (Area 1-42) will be avialable for use as a backup. Appropriate barriers are proposed l3 E "" for electrical cable as required by section 4.1.5.1. uE n o e e e e o e ;
CONSEQUENCE OF FIRE The only saf e shutdown equipment located in this area is electrical cable of a single train. 2 3 A fire originating in this area would be contained in this area due to the barriers and the automatic water suppression system. In addition, fire stops are located every 20 feet along vertical cable trays. Should the automatic water suppres-tion system not function, the detection system will provide early warning, allowing the fire brigade to extinguish the fire using the proposed hose station in Room 339 (Area 1-42) or the existing hose located in Room 185 (Area 1-6) 2 Should the fire brigade need to remove smoke, smoke removal equipment will be available. The water used in extinguishing the fire will be held in the bottom of the cable chase and portable pumps wtil be used to remove it. Although there is safe shutdown electrical cable in this area, safe shutdown capability is maintained since the fire would be contained and extinguished, and there will be only one train of electrical cable l2l3 4 ,, in the area upon relocation of the train A auxiliary feedwater pump room cooler power cable, b
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FIRE AREA 1 Combined with Fire Area 1-4 O O O O O O O 4-170/172 Amendment 2 7/78
J. M. FARLEY NUCLEAR PLANT FIRE AREA IIAZARD ANALYSIS FIRE AREA NO. 1-41 (2-41) - Auxiliary Building El. 139'-0" (Figure 4.3-9) 2 3 3 Room No. Shutdown Combustible FireLogd Max. Fire and/or Title Train Material Quantity (Btu /ft ) Severity 335 (2335) Load Center Room, Train A A, C D Cable insulation 343 (2343) Load Center Room, Train A A Panels 25,881 lb 105,934 <1 1/2 hr l3 346 (2346) Switchgear and M-C Set A i Room u 1 tj g DESIGN FEATURES Construction: Floors ami walls forming the area boundary are of reinforced concrete. Doors: An airtight UL Class A door between Room 335 and Room 339 (Area 1-42), airtight UL Class A door between Room 343 and Room 339 (Area 1-42), airtight UL Class A door between Room 346 and Room 339 (Area 1-42), airtight UL Class A doors between Room 335 and Rooms 116 (Area 1-8) and 117 (Area 1-9), airtight UL Class A door between Room 343 and Room 246 (Area 1-21). Replacement of the steel plates between room 346 and rooms 249 and 250 with UL class A fire doors is proposed. l4 g Pipe and Electrical Pentrations: Penetrations through the area boundary are scaled with silicone foam. Ventilation: Normal supply and exhaust is by the Non-Radwaste II6V System and the 600V Load Center A/C System. Fire damper doors are provided in ducts penetrating the area boundary. l2 @ $ $ Floor Drains: There are no floor drains provided in the area. .nn $ FIRE PROTECTION " " ' ' Three ionization smoke detectors for the motor generator set and heat detectors for 600V Load Center II, 4.16 KV y $$ r Switchgear 1A, 4.16 KV Switchgear 1F, 5 KV Disconnect Switch 10, 600V Load Centers 1D and IA, and 4.16 KV Switch-DDD w=e
gears 13 and IC. Heat detectors will actuate a total flooding CO2 system in the load centers and switchgears. An alarm bell, a manual fire station and two alarm horns are located in the area. A CO2 hose reel and a water hose cabinet located in Room 339 (Area 1-42) are available for use in this area. The proposed additional hose in Room 339 (Area 1-42) will also be available for use in this area. 2 Appropriate barriers are proposed for electrical cable as required by section 4.3.5.1. , ,3 CONSEOUENCE OF FIRE Safc shutdown equiptent located in this area consists of load centers, switchgear and electrical cable of two y 3 trains. This area is isolated from other areas by reinforced concrete walls and UL Class A doors. A fire originating in this area will be contained because of the quantity of cotbustible material and the barriers. In addition, a fire originating in the load centers or switchgear will be quickly suppressed by total flooding CO2 syste=s. Also, the detection systemin the area will provide early warning of a fire, allowing adequate time for the fire brigade to extinguish the fire utilizing the water hose or CO2 hose reel located in Room 339 (Area 1-42). Should the fire brigade need to remove smoke in order to extinguish a fire, portable smoke removal equip-p ment will be available. U m Should water be used to extinguish a fire, water will be drained to the hallway and then to the floor drain tank. Although there is safe shutdown equip =ent located in this area, safe shutdown capability is maintained in the 23 event of a fire based on the following:
- 1. only one train of electrical cable will be affected,
- 2. should a switchgear or load center be damaged by a fire, the redundant piece of equipment will be available, and
[y 3. a fire will be contained until extinguished. SS
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J. M. FARLEY NUCLEAR PLANT FIRE AREA HAZARD ANALYSIS FIRE AREA NO. 1-44 (2-44) - Auxiliary Building E1. 155'-0" Room No. Shutdown Combustible Fire Load Max Fire and/or Title Train Material Quantity (Bru/ft2) Severity 401 Control Room A, B C Csble insulation, 2,347 lb Channels,1,2 Panels 552 lb 3 416 Instrument Rack Area A, B, C Channels 1,2 j 474 Foyer -- 10,775 <30 min. 475 Coat Closet __ Miscellaneous 1,000 lb f stcred items w (paper, etc.) , C 476 (473) Offices (414) Toilet (412) Kitchen I (413) Kitchen store (472) Control Room Supply , kDESIGNFEATURES aa R M Construction: Floors and walls forming the area boundary are of reinforcea concrete. NS mu MO bb mm
Doors: A pressure tight non-fire rated doo between Room 474 and the outside, UL Class A door For the door between Room 474 and the outside, between Room 416 and Room 415 (Area 1-4). 2 certification of UL Class A construction will be obtained. 4 Pipe and Electrical Penetrations: Penetrations through the area boundary are scaled with silicone foam. Ventilation: The area is served by the Control Room A/C System, Control Room Filtration System, Control Room Pressurization System and Computer Room A/C System. Redundant exhaust fans are pr.- vided for smoke purge. Fire dampers are located at all duct penetrations. Smoke detectors are provided in the Computer Room A/C Unit, which supplies fresh air to the Control Room, to prevent supplying smoke into the Control Room. Floor Drains: There are no floor drains provided. FIRE PROTECTION e Twenty-three ionization smoke detectors and a portable water extinguisher are located in the area b sharing both Units 1 and 2. A C01 hose cabinet, an alarm bell and,a manual fire alarm station $ are located in Room 415 (Area 1-4). The water hose proposed for Room 415 (Area 1-4) will be available for use in this area. An additional portable water extinguisher is proposed for this area. Two portable Class C extinguishers are proposed for outside the area. A hose s*ation is proposed for Area 2-43 for use in this area. The complete enclosure of the kitchen and kitchen lp closet with one-hour (minimum) tire rated walls, ceiling and door is proposed. The addition - 3 of smoke detection to the concealed space above the control room false ceiling and in the , offices and kitchen is proposed. CONSEQUENCE OF FIRE Safe shutdown equipment located in this area consists of instrument racks, control panels and g3 electrical cable. 8ea naa ft rt rt mu. MOW 333 xwe O O O O O O O .
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J. M. FARLEY NUCLEAR PLANT FIRE AREA HAZARD ANALYSIS FIRE AREA NO. 1-51 (2-51) - Auxiliary Building El. 17.i'-0" (Figures 4.3-12 and 4.3-16) I 13 Room No. Shutdown Combustible Fire Load Max. Fire and/or Title Train Material Quantity (Btu /ft2) Severity 501 (2501) Control Room HVAC A, B Cable insulation 1,026 lb 12,363 < 30 min Equipment Room Charcoal filter 944 lb DESIGN FEATURES Construction: Floors and walls rming the area boundary are of reinforced concrete.
$ Doors: Pressure tight non-fire rated double doors between Room 501 and the auxiliary building roof and between Room 501 and Room 2501 Pipe and Electrical Penetrationr,: Penetrations through the floor, El 175'-0", are sealed with silicone foam.
Ventilation: No normal vent'.lation is provided. In general, fire dampers are provided at the duct penetrations through the area boundary. Where fire dampers are not at the duct penetrations, it is proposed to move the 4 dampers to the fire area boundary. Floor Drains: Two 4" diameter floor drains having a 100 gpm capacity each and draliing to the f1ror drain tank are provided in the area. g g g FIRE PROTECTION a a a 555. A detection system is proposed for this area. One water hose is located in this area. It is proposed to move it lll nnn closer to the entrance doorway. A sprinkler systen is proposed for Room 501 to protect de power cables. Appropriate barriers are proposed for electrical cable as required by section 4.3.5.1. l3 A wuo , H ~~~ . e e o e o e e .
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