ML18283A968
| ML18283A968 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 09/24/2018 |
| From: | FirstEnergy Nuclear Operating Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML18283B087 | List:
|
| References | |
| L-18-206 | |
| Download: ML18283A968 (44) | |
Text
Davis-Besse Unit 1 Fire Hazard Analysis Report A-i FHAR Rev 26 10/2014 APPENDIX A SAFE SHUTDOWN COMPONENTS LIST Table of Contents System Page (AFWS)
Auxiliary Feedwater System 1
(CACS)
Containment Air Cooling System 2
(CCWS)
Component Cooling Water System 3
(CFS)
Core Flood System 4
(CREVS)
Control Room Emergency Ventilation System 5
(CSS)
Containment Spray System 6
(DHRS)
Decay Heat Removal System 7
(EDG)
(ESSPWR)
Essential Power 9
(HPIS)
High Pressure Injection System 13 (HVAC)
Heating, Ventilation, Air Conditioning 14 (MSS)
Main Steam System 15 (MUPS)
Makeup and Purification System 16 (NI)
Nuclear Instrument 18 (NNI)
Non-Nuclear Instrumentation 19 (RCS)
Reactor Control System 21 (SFAS)
Safety Feature Actuation System 22 (SFRCS)
Steam/Feedwater Rupture Control System 23 (SWS)
Service Water System 24
Davis Besse UniL I SYSTEM = AFI4S FIRE HAZARDS ANAT,YSIS APPENDIX A SAFE SHUTDOWN COMPONEIIT LIST PERFOR-
-MANCE GOAIS REOUIRED FOR H/s,c/s PRIOR-ITY P&ID
- 1. LTNE HIGH/IOW,
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Davis Besse Unii.t L FIRE HAZARDS ANALYSfS APPENDIX A SAFE SHUTDOWN COMPONENT LIST SYSTEM = CACS PRTORITY = 1-REQUIRED MINIMIIH COMPONEI0T FOR SHUTDO$BJ,2-BACKUPCOMPONENT. 3-AITERNATE SIIUTDOWN COMPONENT PERFORMANCE GOALS _ T.- REACTIVITY CONTROL,2-REACTOR COOIANTMAKEUP, 3-REAMOR HEAT RE!,IOVAL, 4-PROCESS MONITORING,s-SUPPORT FUNCTIONS r
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Davis Besse unit 1
SYSTEM = CCWS TRAIN FIRE HAZARDS ANALYSIS APPEI{DIX A SAFE SHUTDOWN COMPONEIiIT LIST CIRgUIT SCHEME ELEME}ITARY WIRING DRAW. /SHT.
PERFOR-
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THIS COMPONE}IT AITERNATE SHUTDOWN FQR COMPONBIT DESCRIPTlON 1PBEl].?34 2PBF].158A 2PBF'722'TA 2PBF1228A 1PBE1176A 1C1,R375?A 2PBF11594 2CLR3758A 2CV1460D 2CV14608 Lc1/14 5?C
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Davis Besse Unit I FIRE HAZARDS ANAI,YSIS APPENDIX A SAFE SHUTDOWN COMPONENT LIST SYSTEM = CFS PRTORITY = 1-REQLIIRm MINIMW COMPONE{T FOR SHUmQWN,2-BACI(JPCOI4PONEIIT, 3-ALTERNATE SHLTTDOIIN COMPONE]II PERFORMANCE GOAIS = 1-REACTTVITY CONTROL,2-REACTOR COOIANTMAKEUP, 3-REACTOR HEAT REMOVAI,, 4-PROCESS MONITORING.S-SUPPORT F"TJNCTIONS I
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+
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1 Davis Besse Unit 1 FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHUTDOWN COMPONEIIT LIST SYSTEM = CREVS PRIoRITY = 1-REQUIRm MINIMUM COMPQNENT FOR SIIUTDOWN,2-B,ACKUPCOMPONEI.IT, 3-AI,TERNATE SHUTDO9IN COMPONETT PERFORI{ANCE GOALS = l-REACTIVITT CONTROL,2-REAmOR COOLANTI4AKEIP, 3-REACTOR HEAT REI'IOVAL. 4-PRoCESS MONITORING,S-StPPORT FUNCTIoNS I
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THIS COMPONEIT ALTERNATE SHI.TTDOWN FOR TYPE LOC OF COMP NORMAL POSITION DE.SCRIPTION TRAIN COMPONENT 1PBE12O9A 2PBFl149A N/A N/A N/A N/a
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Davis Besse Unlt 1 SYSTEM = CSS TR,AIN F]RE HAZARDS ANAI,YS]S APPEIIDIX A SAFE SHUTDO!'IN COMPONEI T LI ST PRIOR.
- ]TY P&ID
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TYPE LOC OF COMP NORMAL POSITION SHUTDOWN POSITION FAILED POSIT.
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NOTES PRIORI"Y = 1. REQUIRED MINIMUM COMPONETIT FOR SHUTDOWN,2-BACKUPCQMPONEiT, 3-ALTERNATE SHUTDOWN COMPONBIT PERFORMANCE GOALS = 1-REACTIVITY CONTROL,z-REACTOR COOI,ANTMAKEUP, 3-REACTOR HEAT REI'IOVAL, 4-PROCESS MONITORING,s-SUPPORT FUNC:?IONS
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Davis Besse Unit 1 SYSTEM = DHRS TRAIN 2
1 2
1 2
1 2
FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHUTDO!'IN COMPONE}flT LI ST NOTES 1
1)
I 2
1/2
/2 P&ID 1'I,INE HrGH,/r-ow,
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FAILM POS IT.
THIS COMPONENT AI,TERNATE SHUTDOWN FOR PERFOR-
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B 50 so SO SO SC SC so en so SC B
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].CBEI.].83H 1PBE1183A 2SVDH13AG 2C\\IDH].34.B
].CVDH13BE TCVDHl3BB 2CVDH14AA 2C\\TDH14AB lCVDHI4BE 1CVDE14BB 1PBE1126A 2PBF1129A 1PBE1121A 2PBF1134A.
1CBEl155C 2CBFl 1 25C 2PBF1195A 1PBE1187A N,/A N/A
].PAC112A 2PAD1I2A N/A Es2B/ 50B E5 2Bl 508 Es28/19A, C Es28/19A, C E528/198,C E528/198,C Es28/24A, B Es28/24A, B F52B/24C,D E52B/ 24C,D Es2B/zsB E.52B/258 E52B/2sB E.s2B/2sB E52B/258 E52B/258 EszB/zsB EszB/?58 E52B/22 Es2B/22 Es 2Bl 238 EszB/238 F,52B/ L E52B/28 E52B/ 66 E52B/ 56 N/A N/A Es2B/05A. B E52B/05C, D N/A 42 42 43 43 44 44 45 45 l9 4Q 4Q dQ dq 49, 49, 49, 46 46 47 4'7 1a 52 51.
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1 LPI LINE 2 \\rLV LPI LINE 1 1ILV BWST ISO VLV A BWST ISO VLV B CTMT SI,MP ISO VLV A CT14T SI'HP lSO VI,V B DH NORT'I SUCT LINE \\rtv DH NORH SUCT LINE VIJV DH NoRH SUCT LINE 1 lrw DH NORT4 SUCT LIHE 2 \\rLV DH Pt]t4P 1 BWST SUCT 1ILV DH PUMP 2 BWST SUCT 1rLV DH A1IN SPRAY STOP VLV DH AIIX SPFAY T}IRTL \\rLV LPI/HPI CROSS-TIE VLV tPr,/HPr cRoss-TrE v],v DIIRS COOLER ]. - 1 DI{RS COOLER 1-2 DIR/LPI PL,I,IP 1 DHR/LPI PT'MP 2 BORATED WATER, STORAGE TANK DH CI,R 2 BYPASS \\rtv DH CtR 1 BYPASS \\rLV DH CLR 2 OIIT VLV DH CLR 1 OUT \\ILV MOV MOV MOV MOV I'rov
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AB AB D
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,ece={e POWER SUPPTY CIRCUIT SCHEME ELE,IEMIARY WTRING DRAW./SHT.
FAITED POSIT.
THIS COMPONEX'IT ATTERNATE SHUTDOWN FOR PERFOR-
-MANCE GOATS REOUIRED FOR H/s, c/s PRIOR.
ITY P&ID 1-LINE HrGH/r-OW, SPI]RIOUS, BOUNDARY DESCRIPTION TYPE LOC OF COMP NORI4AL POSITION SHUTDO!{N POSITION TRAIN COMPQNMTT HO 178 MO 178 MO 17B MO 1?B MO17B MO1?B MO17B MO 178 MO 1?B t40178 MO3 6B MO3 6B MO T. ?A MO1?A N/A N/A N/A N/A N/A N/A MO17A MO17A MO].?A MO17A MO1?A MO17A N/A N/A N/A N/A MO 17C MO 178 MO 178 MO17B MO178 MO17B MO178 MOl?B MO178 MO17A MO].?A MO17A MO1?A MO1?B MO17B MO 178 MO17B c3 61s (DC) c3 5 16 (DC)
N/A N/A N/A N/A N/A N/A N/A N/A
}{/A N/A mG1-1 D1N. D1P D1N, D1P D].N, D1P D1N. D1P DlN, D1P EDG].-2 D2N, D2P D2N, D2P D2N, DzP D2N, D2P D2N, D2P N/A N/A N/A N/A N/A N/A E12F F12A c3621 c3622 N/A N/A N/A N/A N/A N/A E128 N/A N/A N,/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A lCGDlO4A 2CGD2O4A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 1c@101c 1CGD1O2A 1CGD1O5A 1CGD106A 1C@108C 1CGD1lOA 2CGD201C 2CGD202A 2CSD20sA 2CGD205A 2CGD2O8A 2CGD21OA N,/e N/A N/A N/A N/A N/A 1PBE12 984 2PBFl23OA N/A N/A N/A N/A N/A N/A N/A N/A APBEI25?A N/A N/A N/A N/A N/A N,/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A E648/ O 1F E64B/O2F N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A E27 E64B/rC E64B/1G E64B/1G E548/13 E64B/ 15 E64B/2C E54B/LH E64B/LH 8648,/ 13 E54B/Ls N/A N/A N/A N/A N/A N/A E54B/ 1 0C E0648/ 10c N/A N/A N/A N/A N/A N/A N/A N/A E64B/ r0A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 59 59 57 5',?
5'1 57 57 57 57 57 59 59 60 50 60 60 60 60 60 60 60 60 bU bu 68 68 68 68 68 55 56 58 58 EO 58 68 58 68 6B 203 64 64 64 64 64 64 54 64 62 62 61 61 63 63 63 sov sov AOV AOV AOV AOV AOV AOV AOV AOV H/Ex H/Ex EDG PI,]MP PT'MP PIJMP PUMP PIJT'IP PL)MP PIJMP PT'MP PL]MP PUMP PTMP PUMP PI.,MP PUMP P1JMP PI]MP PTJMP MTR MTR MTR MTR MTR MTR MTR MTR TAI'IK TANK TAI.IK TANK TANK TANK TANK TANK MG K
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FUNC F'IJNC o
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ON ON ON ON ON ON ON ON ON ON ON ON o
ON ON ON ON ON ON ON ON F"I,NC F'I,JNC F'T.,NC FTJNC FUNC FTINC FUNC FUNC ON FUNC zuNC o
FIJNC FUNC o
FUNC FIJNC ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A OFF FC N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A OFF P195-1 P205 - I P205-2 P201-1 P20t-2 5
5 5
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5 H/s cls Hls cls H/s c/s H/s c/s H/s c/s H/s c/s H/s c/s c/s c/s H/s c/s H/s c/s HlS ClS H/s c/s H/s cls H/s c/s H/s c/s H/s c/s H/s c/s H/s c,/s H/s c/s H/s cls H/s c/s Hls c/s Hls cls H/s c/s H/s cls c/s H/s c/s H/s c/s H/s cls H/S C/S H/s c/s H/s c/s H/S H/S H/s H/s H/s Hls H/s E/s H/S H/S H/s HlS H/S c/c/
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T45-1 T45-2 T86-1 T86-2 T85-3 T85-4 K5-2 EDG !. AIR START IILV EDG 2 AIR START VLV AIR START RSVR 1-1-1 DISCH \\rLV AIR START RCUR 1-1-2 DISCH 1rLV AIR START RCVR 1.2-I DISGI vI,V AIR START RCTR 1-2-2 DISCH lrLV AIR START RS\\IR 1-1-1 REI,AY VLV AIR START RC\\TR 1-1-2 REI.AY VLV A.IR START RC\\TR I-2-1 REI.AY VLV AIR START RCUR 1-2-2 REIAY VLV EDG 1 JACKET WATER HEAT EXCH EDG 2 JACKET WATER HEAT E(CH EMERG DIESEL GEITffi^TOR 1 E4ERG DIESEL GE}iERATOR 2 EDG JACKET WATER PtfiP (RIGHT)
EDG.JACKET WATER PT]HP (LEFT)
MG.]ACKET WATER P1'I4P (RIG'HT)
MG JACKET I.IATER PUMP (LEFT)
EDG ]. PRESS PUMP MG 2 PRESS PT'MP EDG FT'EL OIL TRANSFER PT]MP 1 EG FUEI, OIL TR,ANSFER PT]MP 2 MG 1-1 M/D FUEL OIL PI'MP MG 1-2 H/D FUEI, OIL PI',MP EDG I-1 EID FUEL OIL PI]MP EDG I-2 E/D FUEL OIL PI]MP EDG 1 SCAVGR PT'MP EDG 2 SCAVGR PIJMP EDG 1 PISTQN CIE PUHP EDG 2 PISTON CI,.G PIJt'lP DO XFER Pt]lltP ].
EDG 1 AIR START HOTOR MG 1 AIR START MOTOR EDG 1 AIR START MOTOR MG 1 AIR START MOTOR EDG 2 AIR START MQTOR MG 2 AIR START MOTOR MG 2 AIR START MOTOR EDG 2 AIR START MOTOR EDG FUEL OIL TANK 1-1 EDG FUEL OIL TAIIK 1_2 EDG DAY TAI'IK 1-1 EG DAY TANK 1-2 MG STARTING AIR RECEIVER 1.1.1 MG STARTING AIR RECEIVER 1-1-2 MG STARTING AIR RECEIVER 1.2.1
@G STARTING AIR RECEIVER 1-2-2 NOTES nhv. ze
Davis Besse Unit I FIRE HAZARDS ANALYSIS APPEI{DIX A SAFE SHUTDOWN COMPONEIflT LIST SYSTEM = ESSPWR PRIORITY = 1. REQUIRM MINIMTIM COMPONENT FOR SI{UTDOWN,2-BACKUPCOMPQNBIT, 3-ALTERNATE SIIUTDOI,iN COMPONBIT PERF'ORHANCE GOALS = 1-REACTIVITY CONTROL,2-REACTOR COOI,ANTMAKEUP, 3-REAC]TOR HEAT REMOVAI, 4-PROCESS MONITORING,s-SUPPORT FTINCTIONS PRIOR-
- ITY P&ID 1.],INE HIGH,/tOW, SPIJRIOUS.
BOI]NDARY POWER SUPPLY CIRSUIT SCHB4E ELE4E$ITARY WIRING DRAW. /S1rT" SHUTDOWN POSITION FAILED POSIT.
THIS COMPONEI'II ALTERNATE SI{UTDO!{N FQR PERFOR.
-MANCE Hls,c/s REQUIRM FOR TRAIN COMPONESIT DESCRIPTION TYPE IOC COMP NORMAL POSITION 1
1I t
1 1
1 I
1 1
L 1
1 1
1 1
1 1
1 E?34A/5 Et34A/5 E?34A/4 8734n/ 9 N/A 8734A/ 9 N/A N/A N/A E5OB/ 1sA EL6/L N/A N/A E'76r EI E'l26A/7 N/A Et,/r E761 N/A N/A EL6/t N,/
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N/A N/A E7 E?
Et/ L EL/ t E.L/L a
N/A N/A N/A N/A DBP EDG 1.1 D1P D1N C1 LA C1 C1 D].P c1 D1 DAP DAN c1 Y1 D1P D1N Y4 v2 D2N D2P D1P D2P Y1 Y2 Y1 Y2 Y1A (AC)
\\ZA Y2A Y}
v2 Y4 v2 YI Y1 ta D2P Y2A Y4 D2P YBU YAU Y1 YE2 D1P Y1 D1P N/A YL Y1 Y1A N/A DlP D2P Y2 I. PDIS IA 1 PD1 O4A 2PD2 ] 1A BPDBdO2A 1PAC101A lPD1PO5A 3PD1NO5A 1CABDClC 1CAC1O1D 1CAC1O33A 1CAClO3A 1CGD103B 1PAC11OA APDAPOTA APDANO?A AGLIUIIA 1PY1O5A 3PY3O5A 1 PD1 PO 9A 3PD1NO9A 4PY4O5A 2PY2O5A 4PD2NO94 2PDzPO94 N/A N/A 1CY1 O8B 2CY208B lCYlOBA 2CY2O8A 1CY104AA 2CY2O8AA 2CY2O4AA lCY1O8AA 2CY2LLA 2CY4 1 9A
?m?t 1a lcfl 12c 1CY112A 2CYC1]-A 1gY115A zet2l2A 2CD2P19A ZLIIUbA 2CY2A205A 4Cv407A 2CD2 P1 8A BPYBUslA APYAU26A 1CY1l,5B 1CYE211A 1PD1P11A 1CY12LA 101P18A 1gY107A lCYIOTA lCYIO6A 1CY1A105A 3gY307A L@1P19A 3CY3 O ?A 2PD2P11A 2CY2218 E007 E007 E007 8007 E23 B E54Bl 1A E540A/1A E640A/3A E3 4Bl3 E54B/ 1A E,22/L E34B/ 13 E64B/1E E34B/s E348/1 8642A/1A E642A/3A tall1 Es 0B/ 16 E54 1Al3A 8540A/ 14 E640A/3A 854 1A/4A E5 08,/ 16 E640A/44 E64OA/2A M180 - 10 M180 - 10 E64rA/LA E'64t}./2A 8641A/1A E641A/2A E9O8A Et049 / 3 E9O9A E104 9/ 1 EszB/t3 E64t/4A E64L/2A E54L/tL 8541A,/ rA E64 1/2A E64 1A/ 1A E64LA/2A E640A/ 2A E54rA/2A E9O9A E64 1A/4A E6 4 0A/2A E643A/4 E643A/t E541A/1A E541A/28 E54oA/ 1 E641A/18 E,64O}./tA 8541A/14 8541A/1A 8641A/1A E9O8A 8641A /3A 8640A/1A E54 rA/ 3A E64OA/2A 854 LA,/ 28 87 87 87 205 70 10
?0
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?0 70 70 81 8L 86 85 81 80 80 80 80 80 80 80 80 80 80 r52 Lbt 150 150 153 1,4 153 74,5
'7 4,5 r.5 3 153 198 L98 153 153 198 198 198 198 5,198 198 198 153 153 198 1"98 198 5, 198 198 74 74 14
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't3,5 198 BATT BATT BATT BATT SWGR SWGR SWGR PNL PNL PNL PNL PNL PNL PNL PNL PNL PNL
- PNI, PNL PNL PNL PNt PNL PNL PNL PNL PNL PNt PNL PNL PNL PNL PNI.
PNL PNL PNL PNL R
R R
s DF v
DG FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF Y
Y ar S
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OFF OFF OF'F OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF BACIGEED D2 P3-1,-2.-3 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 Hls c/s H/s c/s H/S C/S H/s c/s H/s c/s H/S C/S H/S C,/S H/s c/s H/S C,/S H/s c/s H/s c/s H/s c/s Hls c/s s
S s
s S
s s
S S
S H/s H/S H/
H/
H/
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H/
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c/s c/s c/s C/S C/S c/s H/s H/s H/s Hls H/s H/S H/S c/
c/c/c/
c/c/
c/
c/s c/s c/s H/
H/
H/
H/s H/s H/s H/s H/S c/s c/s c/s c/s 1
1 1
1 1
l-1 1
t 2
1 1
1 2
2 1
L/2 1
1 2
L/2 I
L 2
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a/2 c3 515 c2 c5 716 c57L?
c57624 cs192 t"N 1P 2N BUS B C1 c362r" cl622 c3 528 c3529 c3630 c3 645 c4602 c4625 c4808 c5705 c5708 c5709 C5? 5 5C c5755E c5755G c5755D c57s9C c5760D c5 76 1A C5 ?52C c5752D cs't528 c5763A c5763D 125VDC STATION BATTERY 125\\TDC STATION BATTERY I25VDC STATION BATTERY 125VDC STATION BATTERY 13.8 KV SWITCHGEAR (BREAKER IIBBD)
DG GOV + VLTG CNTRL PNL DC GOV + VITTG CNTRL PNL CONT POWER ESS ME-TER HPI FLOW X COHT POI.IER ESS METER HPI FLoW Y CONT POI.IER TO ATIX SD PANEL INST CONI POWER TO AIIX FW CONTROL PNL NzuTRON FLUX MON. CABINE-I (CH.2)
CONT POWER TO AI,)( F}I CONTROI, PANEL NEUTRON FLTIX MON. CABINET (CH.I}
COIiTT POWER (PQRV IND LIGHTS)
O'ITRL POI.JER PROCESS I'ION (DIXSON)
CNTRL POWER PROCESS MON (DIXSON)
CONTROI, PQWffi PROCESS MON (DIXSON)
CO}Ir POWER SV IND LIGHTS SFAS POWERED SV CH.2 CONTROL ROOM REACT PROT POST ACCIDEhIT MON. RACK SFAS IOGIC ACTUATM GI2 INST POhIER NN]-X BUS INST POWER FD TO NNI.Y BUS O{ 1 SFRCS XMTR & IOGIC CONTROL POWER TO SF"RCS CII3 REI,AY SFAS POWERM SV CH.I SFAS IOGIC ACTUATED (TI 1 CONTROL ROOM REASI PROT. SYS PNL (CHl)
POST ACCIDENT MON. SYS PNL (CH1)
SFAS POWERED SV CH.I CO$IROL ROOM SFRCS CAE]NET (CT{z) 4.16KV AC SWGR SYS PNI, (CH.2 }
(clr.2)
NOTES PAGE =
9 t
REV. 28
Davis Besse UniE 1 SYSTEM = ESSPWR FIRE HAZARDS ANALYSIS APPETIDIX A SAFE SHIITDO!'IN COMPONEIflT I,IST TRAIN L/2 2
NOTES POWER SUPPLY CIRCUIT SqHEME ELEITIENITARY WIRING DRAW. /srII.
TH]S COMPONE}IT ALTERNATE SHUTDOI.JN FOR PERFOR-
-MANCE GOALS REQUIREX)
FOR H/s.c/s PRlOR-ITY P&ID 1 -LINE HrGH/r.OW.
SPTIRIOUS, BOU}IDARY TYPE LOC OF COMP NORMAL POSITION SHUTDOT4N POSITION FAILM POSIT.
COMPONE'IT DESCRIPTION 2CY2 15El 2CYF211A 2CY2O?AA 2CY209AA 1gYL07AA 1CYlO9AA 1Cv104B 2Cv204A 1LV4 90 68 1CY104B 2CY2O4B 2IJV4 9078 19Y11?C 1CY11?D 1CD1P2OC 2gY2L4A 2(D2P20C 2PAD1OlA 2PDzPO5A 4PD2NO5A 2CAACDlC 2ClDl"033A 2CAD1O3A 2CGD2O3D 1PD132A 1PD145A LPDl01A 1PD128A 2PA.D11OA BCAEDD24.
BPDBPO?A BPDBNOTA BCAD2O32II CABTE BUS 2PD233A 2PD2O2A APDlNO4A APDlNO4A APDlPO4A IPBE] 2]5A 1PBE1 2 3 3A 1PBE1 1 9 OA 2PBF1212A 2PBF12O94 2PBF1187A BPD2NO4A BPD2PO4A i.PDL05A 1PD121A 1 PD1 O3A LPD134A 2PD2O5A 2PD2214 2PD2O3A 2PD234A
].PAC].].CEA 1PAC12CEA 1PD1PO?A 3PD1NO?A 1CACl1CEE 1CAC12CEE 1PD1PO?A 1PD1NO7A 1CBCE1lA 1CBCE12A E64aa./2A E64LA/2A E9O9A E9O9A E9O8A E9O8A EE4 1A/ rA E64LA/2A E8 01 E64 1A/ tA E641A,/ 2A E8 01 E641A,/ 1A E64 1A/ 1A 8540A,/ 1A 8541A,/2A E640A/2A Eool/01 E64OA/2A E64oA/44 E3 4Bl 9 Ezz/z E34B/ 1l E64B/ 2E 8007 E00?
E007 E007 Eool/ol E34B/j E642}./z$
E64z/4A 822/r EL/ L E0 0?
8007 E640A/3A EG 4 oA/ 1A E6 4oA/ 1A 8007 E007 8007 EOO 7 800 7 E007 E64oA/4A EE4oA/2A E'l EI E?
E7 E7 F-L/ l E1/ 1 EE4oA/ rA E64oA/3A Ei4B/t6 E34B/16 E54oA/ 1A EG4oA/3A F1'tB/3 E3 ?B/ 3 r98 198 5, 153 5, r.53
- 5. 153 201 201-20].
20]-
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70 70 70 70 "to 70
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'to 85 85 85 88 88 88 85 86 70
'to 70 70 70 70 70
'70
'to 70 70 70 70 70
'to 70
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?0 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON FI,'NC FTJNC FUNC FUNC FUNC FUNC ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF' ON ON ON ON ON ON ON FUNC Ft,,NC F'UNC FUNC FUNC F'IJNC ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF QFF OFF OFF u!!
OFF OFF OFF OFF OFF AFI'IS TRAIN 1&2 DBCIP. DBC1N DBC2P, DBC2N 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 H/s c/s H/s c/s H/s c/s H/s c/s H/s cls H/s c/s H/s c/s H/s c/s E/s c/s H/s c/s H/s c/s H/
E/
H/
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C/S cls S
s c
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c/c/
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H/
H/
H/s H/S H/s H/s H/s H/s H/s H/S H/s c
s c
C/S c/s C/S c/s c/s c/s c/s c/s cls C/S 1
L 1
1 3
1 1
1 L
1 1
1 1
1 EszB/21 EszB/z4D E458/ 1 1c N/A E4sB/ 1 1c FL/L E'r/L E7 E7 E7 E7 E7 E7 E7 E?
E7 E7 EB O1 E7 E7 E7Et/r E7 N/A N/A E8 01 E80 I E801 v2 YF2 Y2A Y1A Y1A Y1 Y2 c67 08 Y1 v2 c6709 Y1 Y1 D1P (DC}
v2 D2P (DC)
EDG 1.2 D2P D2N D1 D1 D1 D2P DC MCC DC HCC DC I'ICC DC MCC D1 DBN,/DBP DBP DBN D2 c1 DC MCC 2 DC MCC 2 D1N D1N D1p E12A E12A E11D F12A F12A F1ID D2N D2P DBClPN DBClPN E12A E12A DBC2PN DBC2PN F12A F12A c1 C1 D1P D1N D1P D1P D].P D1N D1P D1P cDE-118-1 cDE-l"LB-2 mE-12A-1 oF-11A-1 (DF-L2A-1 D1 DC MCC 2 E1 c5792A c5798 c5'199 c61!5 D1N DlNA D1P DlPA D2 c5708 c570 9 c6714 D2N D2P DAN DAP DBClN DBClP DBClPN DBC2N DBC2P DBC2PN DBN DBP DC MCC CH 2 SFRCS }O4TR & IOGIC POST ACCIDENT MON. IND. PI.IL (CI{2)
POST ACCIDENT MON. IND. PNL (CH1}
CTRM EHERGBTCY HVAC CONTROIJ PANEL TRI.I EMERGEITSY IIVAC CONTROL PA}IEL CTRM EI4ERGMICY }IVAC CONTROL PANEL CTRM EI,IM,GHIICY T{VAC CONTROL PANEL CONTROL POWM. (LOADS NON-SSD)
CONT POhIffi, TO DH12 INTIJ(
DlP CONT TOWER TO AIT{P GOV (ICSO38A)
CONTROT DISCONNECT TRANSFER SWITCI{
D2P CONT POWER TO AI'WP GOV (ICSO38B}
4,16ICi/ AC SWGR 125\\IDC BATTERY GIARGER 1251/DC BATTERY CIARGER 125VDC BATTERY CHARGER 1251'DC BATTERY CHARGER 125VDC BATTSRY CHARGER 125\\DC BATTERY CIIARGER 125\\TDC DIST PANEL 125VDC DIST PANEL zsol\\2sv DC MCC 2so/Lz5v Dc l.rcc 480 vAC t4CC EL 125VDC DIST PNL 125VDC DIST PNL 125\\IDC DIST PANEL I25VDC DIST PANEL 125\\IDC 125VDC 125VDC I25lIDC 4.16KV DIST PNL MCC DIST PNL MCC SVJGR PNL PNL PNL PNL PNL SWGR MCC MCC MCC MCC SWGR BCHG BCfIG BCHG B(I{G BgHG BCHG MCC MCC MCC SWGR MCC PNL PNL PNL PNL PNL PNL PNL MCC MCC MCC Y
Y I
I a
Y Y
v Y
Y x
x x
x I
HH itH Y
DF x
al 1
1 1) 2 2
2 2
t 2
PRIQRITY = 1-REQUIRED }.41NIHUT.1 COMPONETIT FOR SIIUMOWN,2-BACKUPCOMPONENT, 3-ALTERNATE SHUTDOWN COMPONEX'TT PERFORMANCE GoALS = 1-REACTIVITY COMTROL,2-REACTOR COOLANTMAKzuP, 3.REACTOR HEAT REMOVAI, 4.PROCESS MONITORING,s-SUPPORT FUNCTIONS 3
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Davis Besse Unit I SYSTEM = ESSPWR rRAIN FIRE HAZARDS ANALYSIS APPEIIDIX A SAFE SHIITDOWN COMPONENT I-,IST ELEME}.ITARY WIRING DRAW, /SHT-P&ID I-LINE HrGH/r.ow, SPI.IRIOUS, BO1NDARY POWER SUPPLY CIRCUIT SCHE4E THIS COMPoNEiT ALTERNATE SHUTDOWN FOR PERFOR.
.MANCE GOAIS REQUIRED FOR H/s,c/ s PRIOR.
. ITY TYPE IPC CQMP NORMAL POSITlON s!fllrDowN POSITION FAILED POSIT DESCRIPTION COMPONEI.II 1 PBEl O7A t PBEL120A
]-PBE11O1A 1PBE1 13 2A lPBE1 15 OA 1PBE1O6A 1PBE1O94 1 PBE12 O 2A 1PBE121OA 1PBE1234A 1PBE1273A 1PBE11OA 1PBE1O5A
].PBE118A lPBE16O9A 2PAD11DFA 2PA.D12DFA 2PD2PO?A 4PD2NO7A 2CAD1lDFE 2CAD12DFE 2CBDF].1A 2CBDF].24 2PD2PO7A 2PBFI15A 2PBF1137A 2PBF1143A 2PBF'11464 2PBF11894 2PBF114A 2PBFlO?A 2PBF12O2A 2 pBF12 7 8A 2PBF1lOA 2PBF1O5A 2PBF1J"8A BPAD2DFTA BPDBNl 1A BPDBPllA BCBFTA BCBDFTA BPDBP1 IA BPBFTOTA BCDBP3OA BSYBU4 1A 1CD1P21A 2CD2 P2 1B 1CD1P21D 2CD2P21C 1CD1P2 IA 2@2P21A 2CY216A 1CY1 1 ?B AOAP2BA 2PD2P:.2A 2PD2N17A 1PD1P12A APDATIz4A C}BI,E BUS 1 PBE16 1 64 2PBF1624A 1PBE1617A 2PBF1523A 1pYVlA 1PXYlA Eo05/01 Eoo6/01 8005/01 E006/01 E0 06,/ 01 8005,/ 01 Eoo6/01 E006/01,0s E.6/s Eoo5/01 Eoos/01 8005/01 E006/01 8005/s EO?5 / Os EL/2 E640A/24 E540A/4A E14B/ t6 834B,/ 15 E,3'tB/3 E3'78/3 E'64OA/2A E00 6/ 02 E006/02 EOO6 / 02 8006/02 EOO6/ 02 8006 / 02 8006/02 Eo o6/ 02 E005/02, 0s Eoo6 / 02 8006/02 E3'tB/ 4 E3 4Bl2 3 F.64?.A./4i E642A/2A E369/ t6 E36B/ r7 E,369/r7 E36 / L8 8642A/ 28 8543A,/4 E5 4 0A/ r.B E5 4 0A/ 28 E64oA/ 1B E54OA/28 E54oA/18 E640A/28 E64rA/2A E641A/1A E542A1B E64oA/2A E64O/4A E64 0A/ 14 8642A/38 E22/t E5/ 5 E6/ 5 E6/5 E.6/5 E6/s E.5/ s 70
?0 70 70 70 70
?0 70 202 70 70 70
't9 1a
't0 70 7Q 70 70 70
?0 70
?0 70 75 70 76
'to
?0 70 70
?0 70
?0 70 70 151,5 151,5 198,5 198,s 30,5 30,5 1,4,5 1,4,5 5
5 151.5 134 85 134 135 70 90 qn 90 90 B3 90 H/s c/s H/s cls H/S C/S H/s c/s H/s c/s H/s c/s Hls c/s H/s c,/s H/s c/s Hls c/s H/s c/s H/s c/s s/s c/s H/S C/S H/s c/s Hls c/s Hls c/s Hls c/s Hls c/s Hls cls c/s H/s c/s Hls c/s H/s c/s H/s c/s HlS C/S H/s c/s r{/s c/s H/S C/S Hls c/s H/s c/s Hls c/s H/s c/s H/s c/s H/s c/s H/S C/S H/s c/s Hls cls H/S C/S Hls c/s H/s c/s H/s c/s H/s c/s E/s c/s H/s c/s H/s c/s H/s c/s H/s c/s 1
1 1
I I
1 1
1 1
1 1
1 1
1 1
L I
t 1
1 1
1 1t 1
I L
1 L
1I E6/ l E6/ L E6/ L E6/ t F'5/t E6/t E6/1 E6/a E6/ 1s E6/ L E6/ L E6/r E6/ t E4/ t E6/s E1-/t E4/3 E5 58l 1r" E52B/ +9 E52B/ 49 E50B/2 I EsoB/2 8 E44B/24 E44B/24 EsoB/25 E528/?r.A N/A E49B/7OG F'49B/'70I' E4 9Bl ?0F Er/ r E7 LI El E?
E6/2 E6/2 E'5/2 E6/2 E6/2 E6/2 E6/2 EE l1 E6/2 E6/2 E6/2 E6/s Er/ 1 E1 E11A E11A E11A E1 1C E1 EL E,LzA E12C E12A E128 E1 E1 E1 E16A D1 D1 D2P D2N D2P D2P D2P D2P D2P F1 F11A F11A F1T.A F].1A F1 F1 F12A F12C F1 F1 F1 D2 DBN DBP F?
DBN DBP DBP YBU D1P D2P D1P (DC)
D2P (DC)
D1P (DC)
DzP (DC}
Y2 (AC)
D2N DIP (DC)
DAN C2 E16A F16A E16A F16A wl xY1 ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF ON ON ON ON ON ON ON ON ON ON DG Y
K BE BE B
\\.
Y Y
EE DG x
ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON DF v
A G
B Y
,J BF BF x
x II ON ON ON ON ON ON ON ON ON ON ON ON ON II A
S s
a A
A A
U x
DG v
I Y
x ON ON ON ON ON ON ON ON ON ON o$
ON ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OF'F OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF QN OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF BACICFEED C2lD2 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 DC CONT POWER RCP MONITOR DC CONTROL POWER RCP MONITOR CONTROL POWER (TO CCCWOOI)
CONTROL POI'JER (TO CCCWOO2}
DC CONTROL POWER TO CAC 1 OIII VtV DC CONTROL POWER TO CAC 2 OUT VIJV C1f,T.IT POWER RC3?05 (LR3758}
CONTROL POWER (IPADS NON-SSD}
CONTROL POWER (SV WC1453)
DC CONT PWR (MU54O6,RC451OA,PORY)
DC CONT PWR TO RC4BO1 (MU6405.
CONT PI.IR (TO I*4IJT(, SG DRN RI,Y)
BUS TIE XF1'4R BACKFEED CONSTAMT VOLT TRANSFORI,IER (CIIT CONSTA}IT VOLT TRANSFORMER (CVT CONSTANT VOLT TEANSFORMER (S/T CONSTANT VOLT TRANSFORMER (CVT 12OVAC DIST PNL MU6407) 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC HCC 48OVAC HCC 48OV AC MCC 480VAC MCC 48OVAC MCC 480VAc l.lgc 48OVAC MCC 48OV AC MCC 48OVAC HCC 480 v AC l'rcc FI 48OVAC t4CC 4BOVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC MCC 48OVAC HCC 480VAC t',lCC 48OVAC MCC 48OVAC MCC 48OV AC HCC 48OV AC MCC F7 480v AC MCC coNT PowER (wc1?47) sr 1) cH 2)
CH ])
CH 4)
MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC MCC SWGR PNL PNL XF'I,IR XFMR XFT'IR XFT.lR XFMR PNL MCC MCC MCC MCC l,lCC MCC HCC IqCC MCC MCC MCC MCC MCC MCC PNL
- PNI, PNL PNL
- PNT, PNL PNL
- PNI, PNL PNL
- PNI, 1
1 1
1 1
1 L
1 1
1 1
1 I
LI 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
1 I
2 1
2 I
2 2
1 1
2
/z L/2 E11A E1 18 E11C E11D E11E E12A E12B E12C E12D E12F 814 E15 E16A E15B F1 FLtA FI18 F1 1C F],1D F11E F12A F12B F12C F].2D F14 F1s F1 5A F71 RCL? 5 1 Rc3501 RC3602 RC3 60 7 RC3 50 8 RC3701 RC3702 RC3705 RC3 7 06 RC3 7 15 RC4 6 05 Rc4801 RC4802 xAco1 xYl xv2 xY3 xY4 Y1 NOTES PRIORITY = 1-REQUIRED HINIMW COMPONENT FOR SHUTDOWN.2-EACKUPCOMPONSIT, 3-ALTERNATE SHUIIDOWN COMPONENT PERFORI'IANCE GOALS = 1-REAfIIVITY CONTROI,2-REAMOR COOLANTMAKEUP, 3.REACTOR HEAT REHOVAL. 4-PROCESS MONITORING,s-SUPPORT FTJNCTIONS pAcE = 11 REV.28
Davis Besse Unit 1 SYSTEM = ESSPWR FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHUTDOWN COMPONEI{T LIST TRAIN 2
2 P&ID
]..I,INE HIGH/tOW,
- SPURIOUS, BOUNDARY POWER SUPPLY CIRCT.IIT SCHEI4E ELB{MITARY hIIRING DRAW./SHT.
I.oC OF COMP NORMAL POSITION SHUTDOhIN POSITION FAlLED POSIT.
TI{IS COMPONM.IT ALTERNATE SI{UTDO!{N FOR PERFOR-
-MANCE GOALS H/S, C/S REQUIRM FOR PRIOR-
_ lTY COI'IPONE{T DESCRIPTION TYPE YV1 xY1 xY2 w2 YV2 xv2 w3 AIJ YBU xY4 w4 DC MCC YVA DC I4CC YYB E12B E118 F12B F11A E12A E12A E12A D1P YFRI D2P YVA YFR2 D1N YF'R3 D2N YFR4 DC MCC DC T.ICC D2P D1P DlN D2P lPYV1B 1PXY14
? DYV? A 2PYVzA 2PYV2B 2PXY2A 3PYV3A 3PXY]A BPYBUO5A 4PXY4A 4PW4A APD116A APrvAA BPD216A BPYVBA 1PBE1259A 1PBEI"18OA 2PBF127OA 2PBF1 1O1B lPBE].2204 2PBF122OA 1PBE1.221A 2PBF1221A 1PYv1A INTERNAI 2PD2PO3A APYVAA INTERNAL INTER}TAI, 4PD2NO3A INTERNAL APD116A BPD216A 2CD2P13A 1m1P13A 1CD1N16A 2S2PL0A E2OOB E2OOB E6/ s E2OOB E2OOB E6/s E6/ s 8643A/3 E6/5 E6/s E007 E?
800 7 E7 8009 E009 8009 8009 Lb/
L E6/1 E6/2 8007 E2OOB E00?
E7 E2OOB 800?
E2 OOB E0 07 E2 OOB E00?
8007 E,64OA/2A E6 4 0A/ 1A E640A/3A E64OA/2A 90 90 83 83 90 137 90 83 84 84 84 70 70 70 70 90 90 90 90 90 90 90 90 90 90 90 90 90 89 oo 4
4 t4 14 5
PNL PNL PNL PNL PNL PNL I}w INV IIW PNt PNt PNL PNL PNL PNL PNt PNL PNL PNL INV INV lNV PN],
PNt PNL
- PNI, Y
x F
E II F
Y x
I Y
x Y
II x
Y Y
Kv
.J DF Y
I Y
ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF OFF OFF OFF' OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 Hls c/s H/s cls H/s c/s H/s c/s H,/s c/s H/s c/s H/s cls Hls c/s sls c/s H/S c,/S HlS C/S s
s s
s s
H/
H/
H/
H/
H/
H/
H/
H/
H/
C/S C/S c/s c/s c/s c/s c,/s C/S H/s HlS Hls H/s H/s H/s c/
c/c/c/
c/
S s
1 1
1 1
1 1
1 1
1 1
1 I
t 1
1 I
L 1
1 1
E?
E7 MOO 5D t't00 6D E'?
HOO 6D E'7 E7 E'l E'7 E7 E7 E7 E9 E9 E9 E9 E7 El E1 E'I E7 E7 El Y3 Y1A Y2A YAU YBU vv2 rv3 YV4 Y3 602 Y4 YE1 YE2 YFl vF2 YRFl YRF2 YRF3 Yv1 YVA YVB zc54 5 1 2c6452 2c6459 2c6460 120 VAC ESS INSTR DISTR PANEL
].20V AC DIST PNL 12OVAC D]ST PML l2OVAC DIST PNL COMTROL POWER (MU19 & MUf2) 12OV AC DIST PNL 12OVAC DIST PNL 12OVAC DIST PNL l2OVAC }'CC 240/120VAC MCC 12OVAC MCC 240/120vAC MCC RECTIFTER RECTIFIER RECTIFIER RECTIFIER 125VDC INVERTER 125VDC II{VERTER 125VDC INVERTER AFP #2 STRL \\ILV POSITION COMTROLLER AFP #1 TTRL VLV POSITION CONTROLI,ER MDFP CONTROL VLV PQSITION CONTRQLI,ER I'IDFP CTRL lrLV POSITION CONTROLLER 125VDC IN1IERTER
].25\\1DC IN\\TERTER 12s\\iDC INVERTER f
t NOTES 1
1 2
2 1
2 1
1 2
PRIORITY = I-REQUIRM MINIMUM COMPONENT FOR SHUTDOWN,2-BACKUPCOMPONE}TT, 3-ATTERNATE SHUTDOWN COMPONEflT PERFORHANCE GOALS = I_ REACTIVITY CONTROL,2. REACTOR COOI,ANTMAK.EUP, 3-REASIOR HEAT REMOVAL, 4-PROCESS MONITORING,5-SUPPORT FUNCTIONS
+
t 0
,&r=r, REV
Davis Besse Uflit 1 FIRE HAZARDS ANALYSIS APPE}TDIX A SAFE SHI':TDOWN COMPONEMT I.IST SYSTEM = HPIS PRIORITY = 1-REQUIRED MINIMW COMPONENI FOR S}IUTDOVIN,2-BACKUPCOMPONEI.IT, 3.AJ,TERNATE S}ruTDOWN COMPONETIT PERFORMANCE GOAIS = 1-REASIIVITY CONTROI,,2-REACTOR COOINNTMAKETIP. 3-REASIOR HEAT REMOVAL, 4_PROCESS MONITORING,s-SUPPORT FUNCTIONS
+
t I
"o.e=ls POhIER SUPPLY ClRCUIT SCHEI*I8 EtE4EI{TARY WIRTNG DRAVT. /Slrr.
PERFOR-
-MANCE GOAI,S REQU]RM FOR Hls,c/s PRIOR-
- ITY P&ID 1-I,INE HrGr{/row,
- SPURIOUS, BOLII{DARY TYPE
[0c OF COMP NORI4AL POSITION SHUTDQWN POSITION FAILM POSlT THIS COMPONE.IT AITERNATE SHUTDOWN FOR COMPONENI DESCRIPTION F11C F11C E11A E11A F1].8 EI2E E12E DC MCC F12A DC MCC C1 D1 2PBF1 13 9A 2PBF1 14 1A 1PBEl1O3A 1PBE11O5A 2PBF1194A 1PBE1286n' 1 PBEl 2 964
!.PDI.O5A 2PBF123 1A 2PD2O5A 1PAC111A 2PA.D111A E528/25A, B Es2B/26A,8 Es28/25A, B E528,/26A, B Es2B/65 E52B/ 6s E52B/ 61 Es2B/ 64 Es2B/63 EszB/64 E52Bl05A Es2Bl0sc 95 96 95 96 95 95 93 94 93 94 q,
oa HPO28 HPO2A HPO2D HPO2C P197 - 1 Pl98 - 1 2
2 2
2 2
2 2
2 2
2 2
1, H/s c/s H/S C/S H/s c/s H/s c/s H/S C/S H/s c/s fl/s cls H/S C/S H/S C/S u/s c/s H/S C,/s H/s c/s 1I 1
I 1
1 1
2 1
2 I
L MO33A MO3 3A MO3 3A MO33A MO33A MO33A MO33A MO33A MO33A MO33A MO33A MO33A SC SC MOV MOV Hov MOV MOV MoV PTJMP PL,MP PUMP PLIMP PUMP PUMP A
A AB AB A
A AB A
C C
C o
o OFF OFF OFF OFF QFF OFF o
o O
o o
ON ON ON ON o/F o/F AS IS A5 IS AS IS AS IS AS IS AS IS OFF OFF OFF OFF OFF TRAIN 2
2 1
1 2I 1
I 2
1 a
HPO2A HPO2B HPO2C HPO2D HP3 1 HP3 2 P197 - 1" P197 - 2 Pr98-1 P198-2 P58-1 PsA-2 HPI
!{PI EPI HPI HPI HPI HPI HPl HPI HPI HPI HPI 2 DISC}I ISO \\rLV 2 DISG{ ISO \\rLV 1 DISGI ISO 1rLV 1 DISCH ISO 1rLV PMP 2 RECIRC \\rLV PMP 1 RECIRC lrtv PMP I AC TO PIJMP PMP 1 DC I4 PMP PMP 2 AC 1.o PMP PMP 2 DC I.O PUI4P PUMP 1 PIJI4P 2 NOTES n&. zs
Davis Besse unit 1
FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHIITDO$IN COMPONEI{T LIST SYSTEM HVAC TRAIN 1
2 1I 2
2 1
1 2I 2
1 1
2 2
1 1
1 1
I 2
2 1
1 I
2 2
2 I
ELEMENTARY WIRING DEAW. /SHT.
PRIOR-ITY P&.ID 1 - LINE SPl]RIOUS, POWER SUPPLY CIRCUIT SCHEME FAILED POSIT.
THIS COMPONB'IT AITERNATE SHUTDOWN FOR PERFOR-
.I'IANCE GOALS REQUIRM FOR H/s,cls TYPE LOC OF COMP NORMAL POSITION sHumo!,tN POSITION COMPONM{T DESCRIPTION APBE12O3A 2PBF].2044 TPBE1255A 1PBE1256A 2rBF1255A 2PBF1256A 1PBE1217A 1PBE1222A 2PBF12O5A 1PBE1285A 2PBF1259A 1PBE1212A IPBET.2 O5A 2PBF1211A 2PBF1236A Actftro53 tA ACM\\I053 1B lFYE1O4A 1PBE124OA 1PBE1241A 2PYF1O4A 2PBF1239A 1PYElO1A 1I-GDI.O98 1PvE102A 1I-6Dl09C
].PYE].034 lI.GD1O9D 2PYF1O1A 2LCD2098 2PYF1O2A 2r-ED209C 2PYF1O3A 2IGD2O9D 1PBE12O8A 2PBF12].OA E60B/5 I E6oB/o48 E6OB/02 E60B/02 ESOB/02 E6 OB/ O2 E6 08,/ 4B E60B/09 E60B/0 9 E6OB/22 E'OB/22 8508,/5 0 E60B/5OA E60B/s 0 E5oB/soA E6OB/52 E6oB/s2 E6oB/04C E'OB/2s E6OB/25 E6 oB/ o4c E60B/25 E6 oB/ 1 8A E54B,/ 5 E6 0B/ 1 8A E64B/ s E6 OBl I 8A E64B/s EsoB/ 1 8A E64B/s E6oB/ 1 8A E64B/ s E60B/18A E64B/s EsoB/32 E6OB/32 118 100 98 98 98 100 101 101 103 103 105 10s 105 105 118,5 118,s 105 106 106 10?
107 110 110 110 1L0 110 110 Ltt" 111 111 111 111 t 11 115 115 H/S C/S H/S C/S H/S C,/S H/s c,/s H/S C/S E/s cls H/s c/s H/S C/S H/s c/s Els c/s Hls c/s Hls c/s H/S C,/S H/S C/S H/s c/s H/s c/s E/S C/S H/s c/s H/s c/s Hls c/s H/s c/s H/s c/s HlS C/S H/s c/s H/s cls t ls c/s H/S C/S H/S C,/S S
H/
H/
c/ s MO26B MO2 ?B MO2 7B MO2 ?B MO2 7B MO 278 MO 278 MO26A MO25A MO27B MO27B MO2 6B MO2 6B MO26B MO2 6B Y10268 MO258 MO27E}
MO 2?B MO 2?B MO27B MO27B MO2 7B MO2?B MO27B MO2'IB l{0278 HO27B MO2 ?B MO27B E12D F12A E12B E12B F12B F12B E12A EI.2A F12A E128 F1 28 E12C El-zC F12D FI2D t3 o 12l84 18 L3012/E418 YE1 E12A E124 YF1 F].2A YE1.
c3 515 YEI c3 61" 5 YEl c3 615 YFl c3616 YF].
c3516 YF1 c3 616 E12A F124 BD EE K
K J
J Y
E F
Y x
BF BF BF BF BD BD I
Y
\\
EE x
K K
K J
J J
Y X
o/F o/F o/F o/F o/F o/F o/F o/"
o/F o/F o/F o/F o/F o/F o/F o/c o/c o/c o/c o/c o/c olc o/c o/c o/c o/c o/c olc o/c o/c o/F ON ON QN ON ON ON ON ON ON QN ON ON ON ON olc o/c o
o o
o o
o U
o o
o OFF OFF OFF OFF OFF OF'F OFF OFF OFF OFF OFF OFF OFF OFF QPEN OPB'I AS IS AS IS As Is AS IS FC FO F'C FC FC A.s IS AS IS HVs3058 HV5305A 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 tr TRAV SCR AREA ET(H FAN (B/U SW PLIMP)
LV SWGR RM IENT FAN 2 MG RM 1 VETTT FAN T MG RM 1 VE}TT FAI{ 2 EDG RM 2 VENT FA}I 3 EDG RM 2 VENT FAN 4 LV SWGR RI4 VBTT FAN 1 AFP RM VBIT FAN 1 Ar'P RM I/M{T FA}I 2 BATT RM VENT FAN 1 BATT RM VEX{T FAN 2 SW PMP RM EI(H FA}I 1 SW PMP RM EXH FAN 2 SW PMP RM EEH FAN 3 SW PMP RM EKH FAN 4 AIR IN LVR FOR B/U SW PI]MP AIR IN I,\\IR FOR B/U SW PT'MP LV SWGR RM FAN 1 DA}4PER LV SWGR RM 429 DAMPER LV SWGR RM 429 DAT4PER LV SWGR RM 428 DN4PER LV SWGR RM 428 DAMPER EDG RH 1 DAI-IPER MG RH 1 DAT,IPER EDG RM 1 DAMPER MG RM 2 DA}4PER EDG RM 2 DA}IPER EDG ROOM 2 DAMPER BATT RM 4298 ATM DMPR BATT RM 428A AT14 DMPR FAN FAN FAN FAN FA}i FAN FAN FAN FAN FAN FAN FAI{
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I REV. 28
Davis Besse Unit 1 SYSTEM = MSS TRAIN FIRE HAZARDS ANA],YS]S APPENDIX A SAFE SHITTDOWN COMPONENT LIST PERFOR-
-MANCE GOALS REQUIRED FOR Hls,c/s PRIOR-
-alt P&ID 1 -LINE HIGH/I.oW, SPIJRIOUS, BOUNDARY POWER SUPPLY CIRCUIT SCHM,IE ELEMEX{TARY WIRING DRAW. /S1rr.
TYPE loc OF COMP NORMAL POSITION sHurDowN POSITION FAILED POSIT rHIS COMPONENT ALTERNATE SHUTDOWN FOR COMPONBTT DESCRIPTION ICSl 1B ICS 1 18 ICS 1 18 I CS 1].8 ICS118 rcs 1 18 ICS11B 1CS1].8 ICSl 18 ICS1lA ICSlI.A ICS11A ICSl 1A ICS].14 ICSl1A ICS 1 1A ICS11A ICS11A 3
a 3
3 3
3 3
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3 3
3 3
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H/S c/s Hls c/ s H/s cls H/S C,/S 11/s c/s Hls c/s H/s c/s H/s c,/s HlS c/s H/s c/s H/s c/s H/s c/s Hls cls Hls cls H/S C/S H/S c/s H/s c/s H/s c/s H/s c/s H/s cls H/s c/s Hls c/s H/s c/s H/S C,/S 1
1 1
1 1
1 MOO?A MOO?A MOO3.A MOO3A MOO3A MOO3A MOO?A MOOTA MOOTA MOOTA MOOTA MOO?A MOO?A MOOTA I*rO07A l*r0074 MOO?A MOOTA HOO 7A MOOTA HOO 7A MOOTA MOOTA MOOTA SO cs708 (AC) c5792 (DC) cs708 (AC) c57 52A (DC) c5792 c5762A c57 92 c5?06 c5'162A C5?62n.
c579?
c5792 c5708 (AC) cs792 (DC) c5192 c5'192 cs? 06 C5?524 c57524 c5792 c5792 c5792 cs762A c57624 cs708 (AC)
C5762A (DC}
c57624 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2CVCS11AC 2CVCS1 IAE 1CVCS11BC 1CVCS1lBE 2CF1/lOOBG lCF'VlOODH 2CF'V].OOAE 2CFI/100B 1CFV100EX{
ICF'VIOOEB 2CRSCCl24 2CRSCCl44 2CV100 1C 2CV1001F 2CRSCC12A 2SR.SCC14A 1CFv101B
].CF'V1O1BG 1CFV1O1AE 2CFV1O1DH 2CFVIOlEII 2CFV1O1EB 1CRSCC1lA lCRSCC].34 ICV101l_C rcv10l-1F ICRSCCIT.A TCRSCCl3A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/n N/A N/A N/A E46B/?9A, B E458/?9A, B 8458,/78A, B E4EB/zgA, B E46B/lA E45B/7F E4GB/1D E45B/18 E46B/aE E548/18 sF003B/ 1 0 sFoo3B/ 1 o E468/32A. B E4GB/32A,8 sFoo3B/ r.2 sFoo3B/ 12 E45B/78 E468/1A E46B/ 1D E46B/ rF E4oB/ r.E E64B/LE sFo o 3B/ 9 sFo o 3B/ 9 E468/32A, B E45B/324, B sFo o 3B/ 1r sFo o3B/ 11 N/A N,/A N/A N/A N/A N,/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 124, 5 L24, 5 5.124 5, t24 120, s 120, s 120,5 120,5 120,5 120, s 120.5 120.5 121,5 121. s 121. 5 120.5 120.5 120, s 120, s l-20.5 120, 5 120, s 120, 5 L27, 5 121, 5 L2L, 5 L27, 5 L97 L9'.7 t9'1 L9'l r9"t r9't L9't 19?
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PSV-SP17A8 PSV-SP17A9 PSV-SP17B1 PSV-SPt-782 PSV-SP17B3 PSV.SPl?84 PSV-SP17B5 PSV-SPI786 PSV-SP 1787 PSV-SP17BB PSV-SP1 789 MS 101 ICS T 1A rcs 1 18 MSlOO HSIV 2 WII ISQ l/LV MSL 1 ISO \\rLV MslV 1 WU ISO VLV MSL 2 ATM VENT VtV MSL 1 ATM \\rBI'T \\rLV MSL 2 ISO VLV MSL HSt MSt MSL MSL MSL MSL MSL MSL T'ISL MSL MSL MSL MSL MSL MSL MSt MSL SAFETY SAFETY SAFE'TY SAFETY SAFETY SA.F'EEY SAFETY SAFEiTY SAFETY SAFETY SAFETY SA!.gTY SAFETY SAl'ETY SAFETY SAFETY SAFETY SAFETY VAL\\IE VAI,VE VAL\\IE VALVE VALVE VA],VE VAI\\/E VALVE VAI,\\IE VAI\\rE VAL1IE VALVE VAI]rE VAI}E VAL\\IE VAI1IE VALVE VALVE sov sv 5V SV SV SV sv CII sv SV SV C1' SV sov sov sov sov sov DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH DH c
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PAGE = 15 [
REV. -28
Davis Bosse Unit 1 FIRE HAZARDS ANALYSIS APPEI{DIX A SAFE SHUTDOWN COMPONEIf,T I,I ST SYSTEM = MUPS PRIORITY = 1-REQUIRED MIN]M1JI4 COMPONENT FOR SHUTDOWN,2.BACKIJPCOMPONEI{T. 3.AIJTERNATE SHUTDOWN COMPONE1IIT PERFORMANCE GOALS = 1-REACTIVITY CONTROL,2-REAMOR C@L,ANTMAKEUP, 3-REACTOR HEAT RET'IOVAT, 4'PROCESS MONITORING,s-SUPPORT FAINCTIONS
+
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PRIOR-ITY P&ID 1-LINE HIGH/LOW,
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-MANCE GOALS Hls,cls REQUIRED FOR TYPE LOC OF COMP NORMAL POSITION SHUIDOWN POSITION FAILM POSfT.
COHPONENT DESCRIPTION N/A N/A N/A N/A N,/A N/A N/A 2PBF1 23 7A 2PBF123 8A 1PBE1171A 1PBE11724 2C.l/tituo3C 2C'VMUOSE 2CSF1744A 2CVMUo3C APBE2259A APBE2262A APBEz263A APBE2278A APBE2278D N/A BLNNI261D BLNNI264B Bcr35218A APBE227]A N/A N/A N/A N/A N/A BgY3521?A BI,COF532A BLNNI264D 2CVMU3 8C 2CWU38E 2PBF1617D ACI{ILOWAB BCHIIOWzA 1PBEl 1 74A 1PBE1 1 7 5A IPBEl 17 7A 1PBE1 17 8A 1PBE1 127D ACHILOWAE ACHII.OWlA 2CV5406D Lcv64 07D 2PBF12O8F 1PBE1 14 7 F 1PBEl2 95 F 2PBFl515F lPBEI 1 948 2PBF1 1 O8E 2CWru65AA 2CSF174 BA 2SVMU66AA lCVMU65BA lCSF]. ? 3 6A l.CVMU66BA 1C1/T,'U65CA 1CSF1737A
/A N
N N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A E52B/L7A Es28/1?A E4 9Bl 18 E498/50A, B E49B/22A F49B/22A E49B/22C E49B/22A E49B/L7F.,B E49B/ t7A,B E498/1?A, B E498/3sA. B E49Bl3sA. B N/A E'l27A/A 8721A/Lt E5064/2 E498/1?A. B N/A N/A N/A N/A N/A E6728/23 E1 27 il tL E498/19A.C E498/19A-C E49B/'t0c,D E49B/1OE E4 9Bl ? oG Es 2Bl 3 0A, B E528/30A, B Es28/30A, B 8528,/30A, B E498,/?OA, B E49B/7OE E4 9Bl ? 0F E49B/ 69 E49B/ 68 E4 9Bl 6 3A, B E498/54A, B E49B/ 62A,8 E49B/ 65A,8 E4 9Bl 6 7A, B E498,/65A, B E52B,/ I.8A E52B/ 6t Es2Bl 18A E52B/ r.8A E52B/6t Es2Bl18A E52B/18A EszB/ 6L 144
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SC SC SC N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A F12A F12]\\
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C5755D (DC) c5 755C c5 71?
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N/A cs759C c5759C Y3602 (AC)
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C5756D (DC)
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RC4B01 (DC}
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Davis Besse unit I SYSTEM = MUPS TRAIN t/2 L/2 I
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\\/2 L/2 L/2 L/2' L/2 al2 Ll2 FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHIITDOWN COMPONE}f,T LIST PRIOR-
- ITY P&ID 1 - I,INE HIGH/IOW,
- SPURIOUS, BOTNDARY POWER SUPPLY CIRCU]T SGIEIIE ELEXTIEhITARY WIRING DRAW. /SHT.
THIS COMPONN{T AI,TERNATE SHUTDOWN FOR PERFOR-
-MANCE GOAIS REQUIRED FOR H/s,c/s TYPE I.oC OF Col,lP NORMAL POSITION SHUTDOT{N POSITION FAILM POSIT.
COMPONEI'IT DESCRIPTION 1
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M03 r,A NONE NONE NONE NONE NONE NQNE MO3 1C M03r-c N/A N/A MO3 1C MO3 ?C MO3?C M03LA MO3 1A MO3 1A M037C MO37C M037C M03 ?C MO37C MO]?D MO3 18 SC SC SC c5763C c5?17 C5 ?5 5D C5?5 5C N/A EI1D DC MCC 1 E11D F11C DC MCC 2 F11C C1 D1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A RC3715 (DC}
c1702 (AC)
RCr-? 61 cL'702 c1702 (AC)
RCl?61 (DC) c5718 tAC)
RC3?15 (DC) lCVMU66CA 2CVMU55DA 2CSF174 9A 2C'1IMU65DA N/A APBE1 1 9 1A APD117A APBEl].92A BPBF1167A BPD217A BPBF1168A lPAC1O5A 2PAD1O5A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A ACVI453A AO,r1453A Agv1743A Acv1743A BCV1747A BCV]"747A ACV356OA ACV3550A Es28/1BA E5 2Bl r.BA F52B/ 6L E528/ 18A N/A E4 98/04 E49B/24 E49B/25 E49B/ 04 E49B/ 24 E49B/2s E498/o1A E498/01A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Es6B/0?
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REV. 28 /
Davis Besse uflit 1
FIRE HAZARDS ANALYSIS APPENDIX A SAFE SHUTDOI'IN COMPONENT LIST SYSTEM = NI PR]ORITY = 1-REOUIRED MINIMW COMPONENT FOR SHUTDOWN,2.BACKUPCOMPONENT, 3-ALTERNATE SHUTDOYJN COMPONEI.IT PERFORMANCE GOALS = 1-REACTIVITY CONTROL,2-REACTOR COOIANTMAKEUP, 3_REACTOR HEAT REMOVAI, 4-PROCESS MONITORING,5'SUPPORT FUNCTIONS f
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THIS COMPONMIT ALTERNATE SITTDCiWN FOR PERFOR_
-MANCE GOA!S 11/s,c/s REQUIRED FOR PRlOR-ITY TYPE r.oc OF COHP NORMAL POSITION SHUTDOI{N POSITION FAILED POSIT.
DESCRIPTION COMPONESIT 153 153 r" 53 153 153 153 153 E/s c/s H,/S c/s H/s c/s Hls H/s c/
c/ s 2
MO3 OB MO3OB MO3OB NONE NONE c4808 c5799 c4808 c4502 c5798 c5 7 55E c57628 1LMF5874E 1Cv107AA 1LNF58?4E 2LNF5875E 2CY2O?AA 2I,RPSAO3A lLRPSBO3A E104 9/ 1 E1010 E1049/ r.
8104 9/3 E100 9 E?3 1A/ 03 E?3 oA/ o3 ON ON ON ON ON OFF OFF OFF OFF Nr-58744 4
4 4
IOC}L SOIJRCE RANGE IND SOURCE RANGE II{D SOURCE RANGE IND SOURCE RANGE IND SOIJRCE R.ANGE ItrTD IND IND I}ID IND I}ID FF DG FF FF FF ON ON ON ON ON TRAIN I
2 Nr - 58744 NI -5874C Nr-58754 NI -NI I NI. NI2 NOTES n-s!'. ts
Davis Besse Unit 1 SYSTEM NNI TRAIN FIRE HAZARDS ANALYSIS APPEIIDIX A SAFE SHUTDOT'IN COMPONENT LIST I
2 1
2 2
2 2
CIRCUIT SCHEME ELEI4ENTARY WIRING DEAW./SHt.
PRIOR-ITY P&ID 1 - LINE
- SPURIOUS, 6HlLow.
POWER SUPPLY PERFOR-
-MANCE GOALS REOUIRED FQR H/s, c/s SHUTDO!.IN POSITION FAILED POSIT.
THIS COHPONSIT ALTERNATE STruTDOWN FOR TYPE IOC OF COMP NORMAL POSITION DESCRIPTION COMPONB,IT c5703 c575 5G c5709 C5 ? 55G c5763A c5?08 c5763A cs708 cl629 c57 16 c3629 c3530 c3629 c5716 c3529 c3530 c3628 c57 15 c3528 c3 630 c3628 c5?15 c3628 c3530 c3530 c3530 c3630 c3530 c3630 c3530 C5?924 c5 7 924 c5709 C5 ? 924 c3530 c1630 C5?61A c57614 c57 08 cs76 1A c57598 c3629 cs798 c3629 c3628 c5799 c3628 c57s5D c5?55C c5755C cs763D c5162C c57 62C c3530 c5709 c3630 cs? 5 0D c57 5 0D c3630 c5?08 c3530 cs759C c57598 c5755G C5?534 2LU"1U31A 2LLMU3 18 zLLMU344 2tLMU344 1LL6425A 1gY112C 1LL54354 1CY112C 2LHPO3AA 2CY211A 2LHPO3AA 2IJIPO3AA 2tHPO3BA 2Ct21LA 2LI{PO3BA 2LHPO3BA 1I,}IPO3CA 1CY112A 1LHPO3CA lLHPO3CA 1I,HPO3DA Igf112A IIJIPO3DA lIJHPO3DA 1LRC143C 2I,RC14 ].8 1LRCI43C 2LRC141C 2LSPO9A3C 2LSPO9A3C 2LSGLT2lA 2LSGLT2!"E 2CY211C 2LSGLT41A lLSPO 9B3C 1I,SPO9B3C 1I,SGLT118
].LSGLT1].E 1CY1 12C lLSGLT3 1B BLNNI153D 2IJP63 5 5AB 2CY2O?AA 2tP5355AB 1LP63 55BB 1CY107AA 1LP5 3 65BB 4LSFPT41A 2LSFPT21A zLSF]-652A 3LsFPT31A 1LSFPT11A 1LSF1602A 2I,SP12A2A 2C\\2lrC 2LSP12A2A ALSP12A1A AI;NNI852T 1LSP12B1A 1CY112C 1IJSP12B1A BLSP12B2A BLNNILO9T 2LTRC3A6 1LTRC3B5A J-tzs/3 ETzBA/ Lz J-tzs/3 E?2BA/13 E,63LB/ tz Es14/ I E63AB/12 Es'r4/ I Et34A,/ o5 J - toz/ 36 Eit4A/ 6 J-toz/3G E7 34A/ 06 J -to2 / 3s 8734A/ 6 J -toz/3s E.734A/ o7 J -toz/ 31 8734A/7 J -Lo2/33 Ei14P-/o7 J - toz/ s4 J-toz/34 E? 3 4A/ 03 E,t34I./3 E? 3 4A,/ 3 E?34A/3 E,i34A/z E'734A/2 E6sB/ o3A 8658,/3A F,s?4/ I E6sB/ o 3A E7 34A/ o2 E7 34A/ o2 EE sBl o3 E6 sB/ o3 Es74/g Ec sBl o3 F.i26A/'l E734A/ I E1009 E734A/e E?34A/ 8 810 10 E'l14p./8 E762 8762 E762 E162 8762 8762 H530-320 F,s't4/ I E't34A/L Ei2aA/og Ei2BP./B M530-320 E,57 4/ I E734A/o1 872'tA/7 F'726A/ t5 EeosA/ 0 3 E90sA/ 3 163 163 L63 163 163 153 163 153
]-62
]-62 L52
]-62 752 162 L62 r52 t62 L62 L62 L62 t62 t52 154 154 154 154 L57 L57 r.5 I L57 t57 r.58 157 15?
158 157 157 158 r55 1s9 r59 Ls9 r.5 9 159 159 159 159 159 r.5 9 r-5 9 159 155 158 156 155 1s6 L56 155 1s5 t56 156 104 104 4
4 4
!,2 L,2 t,2 r,2 a,2 L,2 r,?
't,2 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
4 4
Hls c/s H/s c/s Hls c/s H/s c/s H/s c/s fl/s c/s H/S C/S Hls c/s H/s c/s H/S C/S Hls c/s H/s c/s H/s c/s H/S clS H/s c/s E/s c/s Hls cls Hls c/s H/s c/s H,/s c/s H/S C/S H/s c/s H/s C/S H/s c/s H/s c/s E/s c/s H/s cls H/s c/s s
s H/
H/
s c/c/
H/s fi/s H/s H/S H/S E/s H/s H/S H/s H/S H/s H/s H/S c/s cls c/s c/s c/s C/S c/s c/s cls C/S c/s C,/S 2
I I
2 2
2 2
I 1
1 1
l-1 I
1 l"
2 L
1 1
1 l-L 1
1 1
1 1
1 1
t 1
1 1
MO33A MO33A MO33A MO3OA MO3OA MO3 OA MO3 OA t4007A MOOTA HOOTA MOO?A MOO?A MOOTA MOO?A MOO?A MOOTA MOO?A MO3IC MO3 1C MO31C M03 1C MO33A MOfSA MO334 MO33A MO33A MOOTA MOOTA t40 3 0A MO]OB MO3 OB MO3 OB MO3 OB MO3OB MO3OB MO3OB MO3OB MOOTA MOO?A MOOTA MOOTA MO3 OA MO3 OA OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF QFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF LI-SPO9A1 LI-SPO9A1 LI - SPO9A1 tr-sPo9B1,3 Lr-sPo981. 3 Lr-sPo9B1,3 Lr-Rc14-1-4 PT - SP12El-1 PI -SP12A IND TE TE IND IND IND IND IND IND IND IND IND IND IND IND IND IND IND IND IND IND II{D II{D IND IND IND IND IND IND IND IND
]ND REC IND IND IND IND lND IND I}ID IND IND IND FF R
R R
FF FF R
FF D
FF FF R
FF D
D R
FF R
FF R
FF FF FF FF ON ON ON ON ON ON ON ON QN ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON QN ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON MUP TRAIN 2 FI.OW IND MUP TRAIN 2 FIOW I}iD RC MU FIOW-HI EANGE RC MU FI.OW-I.oW RANGE HPI FI-OW INDICATION HPI F'I.OW IND. (ASP)
HPI FI.OW INDICATION HPI FLOW IND (ASP)
HPI FLOW INDICATION HPI FIOW IND (ASP)
HPI FI.OW INDICATION HPI FI.OW IND (ASP}
SG1-1 START-IJP LEVEL II'[D (C5761A}
PRZR I,EVEL RECORDER RCS INOP 2 EXTB{DM RANGE PRESS RCS I.0OP2 E'(TB'IDM R,ANGE PRESS RCS I,.OOP 1 EXTENDM RANGE PRESS RCS IOOP 1 EXTE}IDED RANGE PRESS RCS LOOP 2 PRESS IND RCS IOOP 2 PRESS IND SG1-2 OUTT,ET PRESS IND SG1-2 OUTLET PRESS IND (ASP)
SG1-2 QUTLE-I PRESS IND SG1-1 OUTLET PRESS IND SG1-l OIJTLET PRESS IND (ASP)
SG1-1 OUTLET PRESS IND RCS I.OOP 2 HOT LEG TB4P (RM 314)
RCS I.oOP 1 HOT LEG TB4P (RM 303}
(ASP)
(ASP)
RCS IXOP I PRESS IND RCS I6OP 1 PRESS IND PRZ,R LEVET IND PRZR tEi/EL IND PRZR LEVEL IND PRZR LE\\TEL ITID SGl.2 START-T'P SGI.2 STA,RT-UP SGl-2 START-UP SG1-2 START-IIP (ASP}
(ASP)
LEVEL lND LEITEL IND (ASP)
LEVEL IND (C5792A)
LE1/EL I}ID (C5710)
SGl-2 sGl-1 scl-1 scl-1 SG1-I START.I,'P START_UP START*UP START-TJP START-UP LElEL LEVEL LEVEL LEVEL LEVET I}ID (C5792A)
IND IND (ASF)
IND (C5?61A}
IND (C5708)
FYl -HPO3A FYI-HPO3A1 FYI.HPO3B FYI.HPO3Bl FYI-HPO3C FYI.HPO3Cl FYI.HPO3D FYI -HPO3Dl LI-RC14-1 tr-RCl4 -2 LI-RCI"4-3 LI-RC14-4 LI _ SPO 941 L] -SPO9A3 LI -SPO9A8 LI. SPO 9A8A LI - SPO 949 LI - SPO 981 LI -SPO983 LI - SPO 9B8 LI.SPO98SA LI-SPo989 LRS.RC14 Pr - 53 6sA Pr-636sA1 Pr-53558 Pr - 53 65B1 PI-RC2A3 PI -RC2A4 PI -RC2B3 PI.RC2B4 PI-SPI2A PI-SP12A1 PI. SP12A1 -A PI - SP12B PI - SP12B1 PI. SP 1 2B2 TE TE
-RC3A5
-RC385 FI-MU31 FI-MU34 Fr 642 5 FI64 3 5 NOTES 2
I 2
2 PRIORITY = 1-REQUIRrc MINIMI]M COMPONH.IT FOR SHUTDOWN,2-BACKUPCOMPONENT, 3-ALTERNATE SHUTDOWN COMPONENT PERFORMANCE @ALS = 1-REACTIVITY CONTROL,2-REASIOR COOI,ANTMAKEUP. 3-REACTOR }IEAT RM4OVAL, 4-PROCESS MONITORING,s-SUPPORT F'IJNCTIONS t
t pAGE=le t'
REV. 28
Davis Besse Unit 1 SYSTEM = NNI TRA]N FTRE HAZARDS ANALYSIS APPENDIX A SAFE SHUTDOWN COMPONEIIT I.IST EtE{ENTARY WIRlNG DRAW. /SHT.
SPIJRIOUS, BOIJNDARY POWER SUPPTY CIRCUIT SCHET'IE PERFOR-
-MANCE GOAJ,S REQUIRM FOR H/S,C/S PRIOR.
ITY P&ID 1-tlNE FAILED POSIT THIS COMPONE}'IT AI,TERNATE SIIUTDOI,'IN FOR TYPE roc COMP NORHAL POSITION SIruTDOWN POSITION COMPONE}flt DESCRIPTION BLNNT154Y AI;NNI8 3 3 4 2LRPSAOTB I.LTRC3A5C 1gY107AA 2LTRC3A5C 2CY2O?AA 1LRPSBOTB 1LTRC3B5C 1CY1O?AA 2LTRC3B6C 2CY2O7AA BIJiINII54B 2CY2Q7AA AINNI833A 1CY].O7AA BLNNI154D 2CY2O7AA ALNNI833C 1CY],O7AA E725A/ A8 8'.128}./s E?31A/07 890 sA/ 03 Et 010 E9 o sA/ 03 E1009 E?30A,/07 E905A,/03 E1010 EgosA/ o 3 810 09 E726A/ OA E1009 8128p./0s 81010 8726A/08 8100 9 8728A,/05 E101 0 1"04 L04 r6t 161 151 161 16L 151 151 151 161 161 160 150 l-6 0 l-50 150 160 160 150 1
I MO3OA MO3OA MO3 OB MO3 OA MO3OA MO3OA MO3OA MO3OA MO3 OA MO3OA MO3OA MO3 OA C5?598 c5750D C5?5 5E c57534 c5799 c5755G c5798 c5 7 62F c5763A c5799 C5 ?5 5G c57 98 c5 75 98 c5? 98 C5?6OD c5799 c57598 c5798 c5760D c5799 4
4 4
4 4
4 4
H/s c,/s H/s c/s H/s cls H/s c/s H/s c/s Hls c/s Hls cls Hls c/s s
e 5
H/
H/
H/
H/
c/s ClS c/s C/S U
D FF FF R
FF FF FF FF FF FF ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF IND IND IND IND IND IND IND lND IND IND TE 1
2 2
1 2
2 TE.RC4A2 TE-RC4B3 TI -RC3A4 TI.RC3A5 TI -RC3A6 TI - RC3B2 TI-RC3B5 TI -RC386 TI -RC4A2 TI -RC4A4 TI -RC4B2 TI.RC4B4 RCS I.OOP 2 COLD LEG TEMP (RM 314)
RCS I.OOP 1 COI,D LEG TEI4P (RM 303)
RCS I'OP 2 HOT LEG TEI4P (AsP)
RCS IPOP 2 HOT LEG TEMP RCS I,oOP 2 HOT LEG TEI"IP RCS T.OOP 1 HOT LEG TEMP (ASP)
RCS LOOP 1 HOT I,EG TEMP RCS RCS RCS RCS LOOP i-ooP LOOP LoOP ISOP HOT LEG TEMP COLD LEG TEMP COLD LEG TEMP COIJD LEG TEI{P CTLD LEG TE}4P PRIORITY = 1-REOUIRED MIN]MU}T COMPONET'IT FOR SHUTDOWN,2-BACKUPCOMPONE}IT, 3-AITERNATE S}IUTDO}JN COMPONM{T pERFORMANCE GOAT,S = 1-REACTMTY CONTRoL,2-REACTOR COOIJANTMAKEUP, 3-REACTOR HEAT REI,'IOVAL, 4-PROCESS MONITORING,S-SIPPORT FUNCTIONS
+
{
tpAGE=zo
+
NOTES REV. 28
/z 1
2 1
1 2
?
2 2
Davis Besse unit 1 FIRE HAZARDS ANALYSIS APPEI{DIX A SAFE SHUTDOSIN COMPONE}IT I,IST SYSTEM = RCS PRIORITY = 1-REQUIRED MINIM1JM COMPONENT FOR SHUTDOWN,2-BACKIJPCOMPONEI'IT, 3-AITERNATE SHUTDOIIIN COMPONE}IT PERFoRMANCE GoALS = 1-REA TIVITY CoNTRoL,2-REACTOR COOI,AMT}IAKEUP. 3.REACTOR HEAT REI.,IOVAL, 4.PROCESS MONITORING.s-SUPPORT FUNCTIONS
- q.
{
t pAGE=21+
POWER SIJPPLY CIRCT'IT SCHEME ELEPIENTARY WIRING DRAW. /SHT.
REQUIRED FOR Hls,c/s PRIOR-
_ ITY F&ID
]. - LINE HIGH/I.OW.
SPI]RIOUS, BOUNDARY FAILED POSIT TI{IS COMPONE$IT AITERNATE SHUTDOWN FOR PERFOR-
-MANCE GOALS IITE LOC.
OF COMP NORMAL POSITION SHUTDOWN POSITION TRAIN COMPONEIT DESCRIPTION EszB/L2 N/A N/A N/A Es 28l 1r.
Es 2Bl 14A E528/ 14 E52B/71 Es2B/ t3 E52B/7r E52B/7LP.
E52B/7aB Es28/? r.A E528/?1A Es 2Bl 7 1B E55B/ 4'7F E5 68/ 47B L'74 205 tub 204 t72 t72 1,72 171, s 11r 175. 5 175, 5 7't5, 5 L75, 5 17s, s 175,5 172, 5 5, L-t?
MO3 OA MO3OA MO3OA MO3OA MO3 OA MO3 OA t'l03 0A MO3OA r',r0304 MOSOA MO3OA MO3OA MO3 OA H/L B
HlL HlL H/L H/L H/L so SO so SO L
L L
L H/
H/
H/
H/
E1 6B N/A N/A N/A F12A F11A F11A cs70s tAc)
RC3706 (DC) cs799(AC) cs798 (AC)
RC4605 (DC) cs798 (AC) c5705 (AC)
RC4605 (DC) 1 PBEl 6O2A N/A N/A N/A 2PBF12 8 5J 2PBFl 1 2 6A 2PBFI127A BCVRC2D 2CVRC2J 1CV46O8AC 1CV4608AD 1CV4508BC 2CV461oAC 2CV451oAD 2CV451oBC zc\\.r4632D 2(]'14632D 2
2 2
2 2
H/s c/s s
S S
S H/s H/s H/S H/s c/
c/
c/
c/
H/S H/s H/S
$/s H/s H/S Hls 11/ s C,/S c/s c/s cls C/S C/S c/s c/s 2
1 2
2 1
D D
D D
D D
D D
D D
D D
D o
C C
o c
C C
c c
C c
C C
o/c C
C co/c o/c L
o/c C
C C
c C
AS IS closm CLOSM AS IS AS IS AS IS FC FC FC FC FC FC RC2OO RC4608B RC2OO RC2OO RC45O8A RC451OB RC46l-04 RC2OO sov MOV SV MAN MOV MOV MOV sov sov sov sov sov RC45O8A RC4608B RC451OA RC11 RC].3A RC].38 RC147 RCzOO RC239A RCz398 RC2A RC4 6 lOB RC4532 PORV BI.OCK \\rtv RCS CODE SAFETY VALVE RCS CODE SAFETY VALVE PRESSI'RIZER 1IMIT HEADER CONTROL \\rLV PZR SMPI, CTHT VT'IT T{DR \\rtv PZR VAPOR SMPt !']-V PZR LIQUID SMPL \\ILV PZR PORV SG 2 HI-PT VE![T \\ILV COI.,D I,EG SG1-2 SMPL \\rLV SG 1 HI-PT 1rEMT \\rLV SG 1 HI-PT VEIT \\rtv SG 2 HI-PT VEIIT VLV NOTES REV: 28
Davis Besse Unit I SYSTEM = SFAS TEAIN FIRE HAZARDS ANALYSIS APPEIIDIX A SAFE SHUTDOWN COMPONEIfrT I.I ST POWER SUPFLY CIRCUIT SCHEME ELEME}flTARY WIRING DRAW. /SHT.
REQUIRED FOR H/s, c,/s PRIOR-ITY P&ID 1-LINE HIGH/I.OW, SPURIOUS.
BOUNDARY FAILM POSIT.
TEIS COMPONBIT AITERNATE SHUTDOWN FOR PEA,FOR.
-I'IANCE C,OAIS TYPE TOC OF COMP NORMAL POSIT]ON SHUTDOWN POSITION DESCRIPTION COMPONMIT cd SA SA SA SA
<tr SA SA SA SA bA SA SA SA S.c.
SA SA SA SA SA SA SA N/A N/A Y1 N/A D1P Y3 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 2CY207A 1CY1O7A lCYIOTA 3CYfOTA 1CD1P19A 3CY3 O7A 4CY4O?A
].CLY545]A 2CLY5454A ALSF15O1A BI,SFI651A AISFl6O3A BLSF1653A ALSFs 8 I 1A BLSFs82T.A 1LSFLT11A 2LSFLT21A 3LSFLT3 1A 4LSFtT41A ALSF15O1A BIJSF ].651A ALSF].603A BLSF1553A AIJSFs812A BLSFs822A 1[,SFPT12A 2LSFPT22A 3I,SFPT32A 4I,SFPT42A ALSF16O].4 BtSF1651A ALSF16O34 BLSF16534 AISF5813A BLSFs823A 8541A/2A E641A/1n.
864Lp./ LA 8541A /3A 864 0A/ 1A 864 1A/ 3A E641A /4A E44B/24 E44B/24 8762 E762 E762 8'.162 E762 E762,5378 8762,6378 E't62,6378 B't52.6178 8762 E762 8762 E762 E7 62 8752 E762 8762 8762 E't62 E762 8752.
r98 198 198 198 r" 98 198 198 198 r.98 r.98 198 198 198 198 198 198 198 198 198 1-98 198 r.98 198 198 198 198 198 198 198 198 198 r.98 198 198 i.98 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 H/s C/S H/s c/s H/S C,/S H/s c/s H/S C/S H/s c/s H/s cls H/s c/s Hls c/s H,/S C/s H/s c/s Hls c/s Hls c/s H/s c/s H/s c/s H/s c/s H/s c/s H,/s c,/s H/s c/s H/s c/s Hls c/s H/s c/s H/s c/s H/s c/s Hls c/s H/s c/s
\\t/s cls H/S c,/S H/s c/s H/s c/s E/s c/s H/s c/s I
1 1
1 1
1 1
1 1
1 1
1 1
L 1
1 1
1 I
1 1
1 1
1 1
1 1
I L
1 1
1 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A FF FF FF FF A
A FF FF FF FF FF FF AC IC FF FF FF F'F FF FF EE EE CC FF FF FF FF FF FF OFF' OFF OFF OFF OFF OFF OFF OFF OFF OFF OF'F OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF' OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OF'F OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF QFF OFF SFAS C}I.z IOGIC PAI.IEL SFAS CH.l I.OGIC PA},IEL SFAS CH.4 IOGIC PANEL SG Auto Essen Level Control SG Auto Essen Level Cont.roL BWST Levef rfldi.cat.or BWST Level Indicator BWST l,evel Indicator BWST Level IndicaEor BWST I-vel SwiEch BWST Level Switch BWST Level TransmitEer BWST Leve1 Transmitter BWST l-evel TransmiEEer BWST I-vel TransmiEter mMT Vessel Press rndicator CTI4T vessel Press IndicaEor glii4'I Vessel Press Indicator gn/rT Vessel Press rndicator CTtIf vessel Press Switch grMT vessel Press switch m'I4T Vessel Press xmtr Cf$I vessel Press xmtr CTMT vessel Press Xmtr CTHT VesseL Press xmtr CTt'lT vessel Radiation Ind CTMT vessel RadiaEion Ind crl,lT vessel Radiation Ind gIl*1T vessel Radiation Ind CTI',IT Vessel Radiation Sw CTMT vessel, Itadiation Sw SFAS C!{.3 TOGIC PANEL PNL HIS HIS L1 LI LI LI LSL LSL I,T tT LT PI PI PI PI PSH PSH PT t!
PT PT RI RI RI RI RSH2 RSH PNL PNL PNL r/2 tl2 a/2 t/2 t/2 L/2 r/2 tl2 t/2 L/2 t/2 1/2 Llz r/2 rl2 L/2 t/2 a/2 L/2 Ll2 t/2 L/"
r/2 2
L/
r/2 c5765D Hrs5453 HIS6454 LI1525A LI 15258 tr 152 5C LI1525D LSL1525AI.
IJSL1525B1 LT1525A LT1525B LT1525C LTl525D Pr 20 00 Pr2001 Pr2 0 02 Pr2003 PSH2000B PsH20018 PTz00 0 PT2001 PT2002 PT2003 Rr2 0 04 Rr2 005 Rr2006 Rr 2007 RSH2004A RSH2OO5A c5753D c5755D c5'162D NOTES PRIORITY = 1-REQUIRED MINIMUM COMPONEI'IT FOR SHUTDOT'JN,2-BACKI'PCOMPONMTT. 3-ALTERNATE SHUTDOWN COMPONETT PERFORMANCE GOAIS = 1-REACTIVITY CQNTROL,2-REAfTOR COOI.ANTMAKEI,JP, s.REAMOR HEAT REI"IOVAIJ, 4-PRQCESS MONITORING,S'SUPPORT FTINCTIONS t
t "oee=lzz J
HEV 28
Davis Besse Unit 1 SYSTEM = SFRCS TRAIN FIRE HAZARDS ANALYSTS APPENDIX A SAFE SHUTDOWN COMPONEIiI1I I,IST NOTES HrGH/r-OW,
- SPURIOUS, BOUNDARY POWER SIIPPLY CIRCUIT SCHEME ELEMMITARY WIRING DRAW. / SI{T.
PERFOR-
-MANCE GOAI.S REQUIRM FOR H/S,C,/S PRIOR-ITY P&ID 1-LINE NORHAL POSITION sHumolllbr POSTTION FAILM POSIT.
THIS COI.IPONBTT ALTERNATE S}ruTDOWN FOR TYPE LoC.
OF COMP COMPQNEI{I DESCRIPTION 2CRC2121A 2CRC2141A ICRC2111A lCRC2 13 1A 1CRSCC21A lCRSCCz3A 2CRSCC21A 2qRSCC23A 2qRSCC22A 2CRSCC24A 2CRSCC22A 2CRSCC24A 2CRSCCl2A 2CRSCC14A
],CRSCCl1A 1CRSCCl3A 1CRSCC11A
].CRSCC13A 2CRSCCl2A 1CRSCC14A i.cRsccllA lCRSCC13A 2CRSCC12A ILKSLLf+A 1LSGLT11A 1I,SGI,T31A 2LSGLT2I.A 2LSGLT41A 2LSGLT21B 2I,SGLT4],8 1LSG]-T118 1LSGIT318 2CRCPD2].B 2qRCPD418 1CRCPD11C
].CRCPD31C 1SRCPD1lEI lCRCPD3 18 2CRCPDzI.C 2SRCPD4 1C 2CRCPS2 1E 2CRCPS21I 2CRCPS41E 2SRCPS41I 2CRCPS21G 2CRCP521H 2CRCPS41G 2CRCPS41H 1C?.CPS1lE 1CRCPS11J 1CRCPSS 1E 1CRCPS31.f 1CRCPS11G
]"CRCPS].].H lCRCPS3 1G lCRCPS3 1H lCRCPMl1B 2CRCPM218 1CRCPM318 2CRCPM418 ESsB/14 E55B/14 E658/1A E5 sB/ 1 E5 sB/ I E,65B/ L E6 sB/ 1 E5sB/ r E55B/ 1 E6sB/ 5A E65B/ 6A E65B/6 E6sB/ 5 sFoo3B/ 3 sF0o3B/3 sF003B/s sFoo 3Bls sFo0 3B/4 sFo 0 3B/4 sFo 038/ 5 sFoo3B/6 sFo 03 B/ 20 sFo 03 B/ 2o sFo03B,/ 19 sFo03B,/ 19 E6 sB/ I E6 sBl 8 E5 sB/ 8A E6 58/ 8A E6 sB/ 8 E6 sB/ I E658/8A ESsB/8A E6sB/ 3 E658,/ 3 E6sB/ 3A E55B3A E65B/3A E6sB/3A E6sB/3 E6sB/3 E65B/2A E65B/2A EssB/2 E.65B/2 E'65B/2 E5 sB/ 2 E6sB/2A r,6sB/2A E55B,/ 1A 8658,/ !.A E55B/ 1A E65E/ r"A E55B/1A E6sB/ I E6sB/ t E6sB/ 4 E65B/4A E65B/4 E6 sB/4A 198 198 198
- .9I 198 198 198 r.98 198 198 198 198 198 198 198 198 198 198 198 r98 198 198 198 198 r.98 198 198 r.98 198 198 r-98 198 198 198 r98 198 198 198 198 198 I98 198 198 r.98 198 198 198 198 198 r98 198 198 198 198 L98 198 198,5 198,5 198,5 1
1 1
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1 1
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818/1 ELg/2 E18/1 E78/2 SA SA SA SA SA SA SA
<tr SA SA SA SA SA SA SA SA SA SA SA SA 5A SA SA SA SA SA SA SA SA SA SA SA qA SA SA SA SA SA cs792A c5't924 c57614 c57514 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A c576r.A c5761A cs792A c57924 c5792A cs't924 c57614 c5761A.
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Rc3601 RC3 6 02 RCI 503 RC3 5 04 OFF OFF OFF OFF OFF OFF OFF OFF OPEiI QPE{
OPEN OPEN OPEN OPElI OPEI oPm{
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OPEN OPEN OPEN OPEN OPEl[
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OPEN OPEN ON ON ON ON ON OFF OFF OFF OFF OF'F OFF OFF OFF QN 5
5 5
3 3
3 3
5 5
5 5
5 4
5 5
5 4
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 H/s c,/s H/s cls H/s c/s H/s cls H/S C/S tt/s c/s H/S C/S Hls c/s H,/S C/S H/s c/s H/s c/s H/s cls H/s cls HlS cls H/s c/s H/s c/s Hls c/s H/s c/s u/s c/s H/S C,/S H/s c/s H/S cls H/s c/s Hls c/s H/s C/S H/s c/s H/s c/s H/s cls H/s c,/s H/s c/s H/s c/s H/S c/s H/s c/s H/s c/s H/s cls H/s c/s S
s s
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H/s c/s cls C/S C/S H/S H/S H/s H/S Hls H/s H/s H/s n,/s c/s C/S c/s C/S c/s LLT I,LT LLT LLT LLT LLT LLT LLT PDS PDS PDS PDS PDS PDS PDS PDS PS PS PS PS PS PS PS PS PS PS PS EC DC PS PS PS RCPM RCPM RCPM RCPM HIS HIS HIS HIS HIS HIS HIS HIS HIS HIS HlS HIS HIS HIS FF FF FF FF FF FF FF FF FF FF FF D
D D
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2 2
2 2
I 2
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LLTSP9BS LLTSP9B9 PDS2685A PDS26 8 5B PDS26 8 5C PDS2 6 I 5D PDs2585A PDS2 6 868 PDS2686C PDS2585D PS3 6 8?A PSI 6 87C Ps3 6 878 PS3687G PS3587K PS3 58 7I, PS3687M PS3587N PS35898 ps3589D PS3589F PS3589H PS3689K PS3 68 9L PS3589M PS3689N RCPMl RCPM2 RCP143 RCPM4 HIS6O3B HISSI 1B HIS54 O1 Hrs64 02 I{rs5403 HIS5404 r-ocrc cH 2 TRrp BI-ocK/pERI'{rssrvE 1OGIC CH 4 TRIP BI,.OCK/PERMISSIVE I.oGIC CH 1 TRIP BLOCK,/PERfiTSSIVE IoGIC O{ 3 TRIP BINCK,/PERHISSIVE BIOCK CIRSIJIT AF3859 (AFP-1 TO SG-2)
BI{lCR CIRCUIT AF38?O (AFF-1 TO SG.I)
BLoCK CIRCUIT AF3871 (AFP-2 TO SG-1)
BIPCK CIRCUIT AF3B?2 (AFP-2 TO SG-2)
BIOCK CIRCUIT HS6O3 (SG-2 DRAIN STOP}
BI.OCK CIRCUIT MS61I (SG-1 DRAIN STOP) cH 1/3 HANUAI START AFPT-1 C570?
- t 2/4 MANUAT START AFPT-2 cs7o7 C]{ 1/3 MAN srRT AFpr-1 & rsol, sc-I c57 c:It 2/4 HAN STRT AFPT-2 & ISOL SG-2 C57 LEVEL XMTR TEVEL XMTR TEVEL XI'ITR LEUEL XMTR LE\\IEL XMTR LE1IEL XHTR LEVEI, X!4TR LEIIEL XMTR SG2 PRESSI]RE SWITCH SG2 PRESSURE SWITCH SGz PRESSTIRE SWITC!{
SG2 PRESST'RE SWITGI SG1 PRESSIJRE SWITO{
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C}I 2 MN ST}I LINE 1 PRESSURE SWITCH CH 4 HN STI4 LINE 2 PRESSI'RE SWITCI{
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CH 2 MN STI.,1 LINE 2 PRESST'RE SWITCH
$I 4 14N STM LINE 2 PRESSURE SWITGI GI 4 MN STI4 LI}IE 2 PRESSURE SWITO{
CI{ 1 MS LINE 1 PRESSURE SWITCH C]{ 1. MS LINE 2 PRESSIIRE SWITCH GI 3 MS LINE 1 PRESSURE SWITCH gH 3 MS LINE 2 PRESSURE SWITCH CI{ 1 !,IS IJINE 1 PRESSI'RE SWITGI CH 1 MS LINE 1 PRESSURE SWITCH CH 3 HS LINE I PRESSIJRE SWITCH CTI 3 MS LINE 1 PRESSI]RE SWITCI{
GI 1 RCP MONITOR REI"AY CONTACT CH 2 RCP MONITOR REIAY CONTACT O{ 3 RCP MONITOR REI"AY CONTACT CH 4 RCP MONITOR REI.AY CO}TIACT sG2 gH 1 SU SG2 CH 3 SU scz G{ 2 SU sG2 CH 4 SU SG1 CI{ 2 SU SGl CH 4 SU SGI CI{ 1 SU sc1 cH 3 su CH 2 MN FI.i CI{ 4 MN FW CHlMNFW CI{ 3 I'lN FW CH 1 MN F}J CH 3 MN F!{
GI 2MNFW gI{ 4 MN FW PRIORITY = 1-REQUIRm MINIMLTM COMPONEI'II FOR SHLITDOWN,2-BACKUPCOMPONEI.IT, 3-ALTERNATE SHUTDOIIN COMPONE]IT PERFORMANCE GOAIS = 1-REACTIVITY CONTROL,2-REACTOR COOI.ANTMAKEUP, 3-REAMOR HEAT REIIOVAT, 4'PROCESS MONITORING,S-SUPPORT FI]NSIIONS t
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Davis Besse Unit I SYSTEM = SwS 1/
TRAIN 2
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2 t/2 FIRE HAZARDS ANALYSIS APPEIIDIX A SAFE SHUTDOT'IN COMPONEMT I.I$T POWER SUPPLY CIRCUIT SCHEME ETEMENTARY WIRING DRAW. /SHT.
PERFOR-
_MANCE GQALS REQUIRM FOR H/s,c/s PRlOR-
-t1r P&]D 1. LINE HIGH,/i{,W, SPI'RIOUS, BOUNDARY TYPE LOC OF COMP NORI4AL POSITION SHUTDOWN POSITION FAILED POSIT.
THIS COMPONENT AITERNATE SHUTDOWN POR COMPONENI DESCRIPTION SC SC B
B B
B B
B c2 C1 D1 cL DI.
C1 D1P D1 D2P cs715 (AC) cs715 (AC) c5?16 (AC) c5715 (AC)
RC3701 (DC)
RC3702 (DC)
ELLc F12A E12A F12A E12A E12A CDE12A1 F11C F1 1C CDFl].C F12C E12C c5?15 (AC) c5753D (DC) cs?16 (AC) cs715 (AC) c5?56D (DC) cs7s6D (DC) cs763C (DC) c5763D (DC) c5716 (AC)
C5755D (DC)
E12A F11A E12C F12C E12C F12C N/A N/A N/A w/A N/A N/A APCA2OlA 1P.A,C1O 7A 2PADIOTA 1PACIO9A 2PAD1O9A lCACD4D 1PD1PO8A 2CACO5D 2PD2PO8A 1cv1355D 2CV1357D 1gv1358Ar 2CV1358BL 1CV1358AG 2CV1358BB 1PBE1].424 2PBF1223A 1PBE12O7A 2PBF1224A 1PBE1218A 1CrS4 928C 1CSDo3A 2PBF11T?A 2CPS4929C 2CSDO4A 2PBF1277A 1PBE127 7A T.CVI"424D 1CV1424G 1CV1429C 2g,1L429C zCVt429B 3CV14298 3CV1429A 19v14298 2CV1434D 2CV1434G
].PBEI232A 2PBFl 1 3 2A
}PBE12814 2PBF1281A 1PBE1282A 2PBF1282A E4BB/t7D E4 BB/ o 5A E4 8B/ o6c E48B/11A E4 88/ 1 1E E4 8Bl 1 rc E64oA/ r.A F.ABB/ 4c EE4oA/2A E4 BB/ 13 E4 8B,/ L3 E488,/33C E488,/33C E488,/33C E4BB/3ic E48B/ 12 E.ABB/Lz E48B/r.4A, c E48B/14B. C E44B/05A, B E44B/r-B E44B/ 6B E44B/oGA. B E44B/18 E44B/ 68 E488/09A. B E4gB/09A. B E48B/3o E48B/30 E48B/3 r.A E4 8B/ 3 1A E4 88,/ 31A 848B,/31A E4BB/31A E4 8B/3 1A E4 BB/3 o E4 BB,/3 o E48B/27 E4BB/ 27 E.48B/28 E.48B/26 E4BB/zB E.ABB/zg N/A N/A N/A N/A r/A N/A 180 r79 l'19 l'19 l't9 119 L79 L',l9 184,5 184, 5 184,5 184,5 184,5 184, 5 184 184 L84 184 185 186 186 185 186 186 188 r-8 I 5, 183 5, 183 5.183 5.183 5.183 5,183 5,183 5,183 5,183 782 18?
18?
187 10, 184 rB9 189 189 189 189 AS IS AS IS AS IS A.s IS FO AS IS AS IS AS IS EII AS IS AS IS N/A N/A N/A N/A u/A N,/A FO FO I
I s AS AS FO FO OFF OFF OFF SWS TRAIN 1&2 P3-1,P3-2 sw2930.31.32 sw2929,3L.32 s1.r2929,30,32 sw2929,30,31 sw13 99 sw13 95 swL3 95,
- swt395, sw1395, swll 99 sw13 99 swt399 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 5
5 H/s c/s H/s cls H/s c/s H/s c/s H/s cls Hls c/s H/s c/s HlS C/S H/s c/s Et/s c/s H/s c/s Hls c/s H/s cls H/s cls H/s c/s H/s c/s c
S H/
H/
E/
S S
H/
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rt/ s Hls H/S s
s ClS c/s C,/S c/s C/S H/
u/
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1 I
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1 1
1 1
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1 1
1 MO4 1A MO41A MO41A MO414 MO4lC MO4
'.C M04 1C MO4IC MO41C MO41C MO4 1C MO4 1C MO4lA r'10414 1404 r.B MO4 18 MO4 18 M04 LB MO4 1B I't041C MO41C MO41C M041C t4041C MO4 1A MO4 1A MO4 1A MO4 IA M04 t-A AFP 1 SUCT 1/LV FROH SW AFP 2 SUCT.VIJV FROM SW TPCTI Ifi TN HEADER ISO 1ILV TPC1I }IX IN HEADR ISO VLV SW FROM CC ID( 1 ISO VLV SW FROI,I CC }D{ 3 ISO ]ILV SW FROM CC Ifi 2 ISO \\ILV CTRIT EUS COND I,INIT IN VLV CTRH EVS COND UNIT IN l/LV SW TO INT STRU VLV SW TO INT FOREBAY VLV sw To cls TowER MU lrLV SW TO COLLECT BASIN \\rLV CAC 3 SW OUT ISO VLV TPLId ID( ISO VLV TPCW tfr ISO 1/LV TPCI^I HX1 OUTI,ET TPC:W lfi2 OI]TLM TPCI^I lfi3 OT TLET BACKUT SW PTI.IP sw PtIlP 1 SW PUMP 2 SW PIMP 3 CAC 1 IN ISO \\rLV CAC 2 IN ISO VLV CAC 3 IN TSO VLV CAC CAC CAC OUT ISO \\ILV OUT ISO iILV OUT ISO \\rLV Pl]MP PT]MP PI]MP PUI'lP MOV sov MoV sov sov sov sov MOV MOV MOV MOV MOV MOV MAN MAN MAN MAN MAN HAN MOV MOV MOV MOV MOV sov BD BF BF BF A
}IH HH BG BG BG BG BG BG IIII II T
T A
A E
L BG BG T
o o
C C
OFF o/F o/F o/p o/c o/c o/c o/c o/c o/c o/c o/c co/c o/c o/c o/c c
o o
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ou ON ON ON 0
U o
o o
c c
U o
o o
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C C
olc o/c P1 P3 P3 P3 o
swll 83 sw1434 sw1382 sw14 2 9 sw13 5 5 swL3 5 7 sw1358 sw2927 sw2928 sw2929 sw2930 sw2 93 I swz 93 2 sw]25 sw45 sw46 sw54 sws5 sw56 sw13 6 6 sw13 6 7 sw13 6 I swl3 95 sw13 9 9 swl424 NOTES PRIORITY = 1-REQUIRED I4INIMIJM COMPONE:.IT FOR SHUTDOWN,2_BACKTIPCOMPQNE}TT, 3.AITERNATE SHUTDOI'IN COMPONEOTT PENTOruIENCE GOAI,S = 1-REA TIVITY CONTROL,2-REACTOR COOI"ANTMAKEUF, 3-REACTOR HEAT REMOVAL, 4.PROCESS MONITORING,S-SUPPORT FUNCTIONS
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Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-25 FHAR Rev 28 9/2018
- 1.
Valve AF3869 (AF3871) provides AFW from AFW Pump 1-1 (1-2) to SG1-2 (SG1-1).
This normally closed valve should be closed when Train 1(2) of AFW is being utilized.
The concern is if this valve spuriously opens, thereby diverting AFW to the opposite SG.
However, the decay heat removal function is satisfied by feeding either or both steam generators.
The AFW pump capacity is such that even if this valve did spuriously open, and thereby divert flow to Train 2(1), adequate Auxiliary Feedwater supply would still be available to maintain the inventory in SG1-1(SG1-2) (Reference 2.3.H (6.8)). However, spurious opening of this valve is a concern from the point of view of inadvertently overfilling the opposite SG, thereby potentially overcooling the RCS and/or introducing water into the AFWS steam supply. Any spurious open signal can be blocked or the valve can be reclosed locally. LY6453(6454) SG Auto Essential Level Control Circuits 1544B/24 are included in the database for conservatism only. Auto control on high or low level achieves SSD; therefore, control power from RC3701 is not required.
- 2.
Valves AF608 (AF599) are required to remain open to provide AFW to one SG1-1(SG1-2). In addition, flow to SG1-1(SG1-2) requires 1 of the following valves to to be open: AF3870 or FW6398(AF3872 or FW6460).
- 3.
Valve ICS038B(ICS038A) is required to remain open to provide Main Steam to the AFW Pump Turbine 1(2), thereby assuring the operability of AFW Pump 1(2). AFW flow is controlled by modulating AFWP Flow Control Valve AF6452(AF6451). If level control is unavailable, speed control can be used to regulate AFW flow. The power supplies and control circuits for ICS038B(ICS038A) can be operated from either the MCR or ASP.
- 4.
Valve AF6452(AF6451) is a DC modulating solenoid level control valve which fails open for SSD. AC is required to modulate to control the amount of AFW entering SG1-1(SG1-2) in automatic level control, but manual control is from either the Control Room or ASP is assumed for Safe Shutdown. (See also Note 3, speed control is a backup means of regulating AFW flow). Control Panel C3645 (C4625) provides AC control power.
- 5.
The power supply to the scheme is not needed for Safe Shutdown. For example, E1, F1, and F7 MCC breakers fail [AS IS] upon loss of control power, (See E34B/16 and E34B/23A). Also, control power is not needed if control circuits fail in the SSD position.
Control power for indicating lights is included for conservatism, but is not essential for Safe Shutdown.
- 6.
Normally closed Valve MS106(MS107) opens to provide steam to AFW Turbine Driven Pump 1-1(1-2) whenever SFRCS is initiated. Manual actions ensure a steam supply to both AFPTs after manual initiation or a false isolation condition as a result of shorts on complimentary steam pressure channels (See E18 sht 1).
Flow can also be established using the manual cross-connect valves MS728 and MS733 along with MS106A (MS107A).
- 7.
Normally open Valve MS106A(MS107A) provides steam to AFW Pump Turbine 1-1(1-2) from SG1-2(SG1-1). IF MS106A(MS107A) remains open or spuriously reopens while
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-26 FHAR Rev 28 9/2018 feeding only SG1-1, SG1-2 could boil dry. MS106A (MS107A) can be manually closed if feed using only one AFPT is desired.
From Reference 2.3.H (6.8), it has been determined that the steam output from SG1-2(SG1-1) is such that the output capacity is sufficient to run the AFW Pump Turbine 2(1) even if the valve was open thereby diverting some steam to Train 1(2) (this is conservatively assuming the case where ICS038B and MS5889A(ICS038A and MS5889B) is open and cannot be closed). Boiling dry 1 SG will not prevent natural circulation in the other SG.
- 8.
Valve MS5889A(MS5889B) is required to open to admit steam to AFW Pump Turbine 2 (1). SV5889A(SV5889B) fails open on SFRCS signal, or loss of power or air supply.
- 9.
Turbine Driven Pump P14-1(P14-2) is required to be operable for operation of AFWS Train 1(2). See also Note 7, both AFPTs start on manual initiation or SFRCS (Trip 5RCMP monitor on Loss of Offsite Power. See E18).
- 10.
Motor Driven Feedwater Pump P241 provides an alternate supply of AFW in the event the Turbine Driven Feedwater Pumps are unavailable.
- 11.
Pump P242-1 is required to be available to support MDFP operation.
- 12.
Pump P242-2 supports operation of the MDFP. This pump is strictly mechanical in nature.
- 13.
NUMBER NOT USED
- 14.
Valve FW6459(FW6460) is required to modulate to control the amount of AFW supplied to SG1-1(SG1-2) by the MDFP.
- 15.
MDFP Seal Water Coolers E183, E184-1 and E184-2 are required to be functional to cool the MDFP Seals. These are strictly passive mechanical components.
- 16.
Condensate Storage Tank T31-1(T31-2) is required to be functional to supply AFW to AFW Pump 1(2).
- 17.
Only 1 CAC unit fan (i.e. C1-1 or C1-2) and its associated cooling coil (i.e. E37-1 or E37-2) is required operable, when shutting down, to maintain containment temperature within operational limits for the instruments in Containment (References 2.3.H (6.8 and 6.10)). Only 1 CAC unit is assured in the Appendix R evaluation in the event of a fire anywhere in the plant. C1-3 is not relied upon for shutdown.
- 18.
Valves CC1467 (Train 1) and CC1469 (Train 2) are required to open for plant Shutdown in order to provide cooling for the Decay Heat Removal Coolers. Note that these valves are required to achieve Cold Shutdown (valves are solenoid operated).
- 19.
Valves CC1471 (Train 1) and CC1474 (Train 2) are required open for plant Shutdown in the case of a Loss Of Offsite Power (LOOP) to provide cooling to the EDG Jackets.
These are normally open manual valves.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-27 FHAR Rev 28 9/2018
- 20.
Valve CC1495 provides CCW to a nonessential portion of the CCWS. This valve needs to be assured closed for Shutdown in order to preclude substantial flow diversion that should ordinarily go to the essential portion of the CCWS and the Containment Header.
- 21.
Valve CC2645(CC2649) is required to be open to provide CCW return flow from the Seal Return Coolers and is required for Safe Shutdown.
- 22.
Valve CC5095(CC5096) is normally open when Train 1(2) is being utilized during normal operation. It is required open for Safe Shutdown to provide cooling to MUPS Letdown and Seal Return Coolers. Manual actions are required in some fire areas.
- 23.
CCW Heat Exchangers E22-1, E22-2 and E22-3 and CCW Surge Tank T-12 are required to be functional to support operation of the CCWS. These components are passive mechanical components.
- 24.
Of the 3 centrifugal CCW pumps (i.e. P43-1, P43-2 and P43-3), 1 is normally operating, 1 is in standby and 1 is an installed spare. Each pump is rated at 7860 gpm (at 65 psi).
The minimum flow requirements of the CCW Pump is 1000 gpm. The Appendix R review considers that only 1 CCW loop is necessary to achieve Cold Shutdown.
The 2 component cooling loops are interconnected downstream from the heat exchangers to essentially form an open loop supply header for loads that are nonessential. One CCW pump is adequate to provide cooling water to the respective essential header and the nonessential containment header only. For this reason, valve CC1495 needs to be assured closed to avoid CCW flow diversion to the other nonessential headers.
- 25.
Valve CC1460 is only required open for those instances where the Makeup System is accredited for Safe Shutdown. This valve supplies CCW to the Makeup Pump Gear and Pump Lube Oil Coolers. Manual action may be required if air and power are unavailable. Manual valves are installed from the essential CCWS headers to the respective pump coolers and effectively bypass CC1460.
- 26.
CCW Inlet Isolation Valves CC1411A and B and Outlet Isolation Valves CC1407A and B are required to remain open to provide cooling to the RCP Seals and Makeup Letdown Coolers.
- 27.
Valves CC5097 (Train 1) and CC5098 (Train 2) provide Return Flow from the Makeup Letdown Coolers. Manual actions are required in some fire areas.
- 28.
Valves CC1409 and CC1410 provide Inlet CCW Flow to the RCS Letdown Coolers (E25-1, 2). These valves are required to remain operable when letting down from the RCS.
- 29.
NUMBER NOT USED
- 30.
Normally energized Flow Switch Relays FIS1422D, FIS1427C, FIS1427D, and FIS1432C monitor flow from the CCW pump and on sustained low flow or loss of control
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-28 FHAR Rev 28 9/2018 power starts the backup pump. On low flow, these switches also provide a signal to open the respective standby CCWS Header (Valves CC2645, CC5095, CC5097, CC2649, CC5096, CC5098).
- 31.
Valves CF01A and B are required to be closed when going to Cold Shutdown at an RCS Pressure of approximately 600 psig, to preclude dumping water from the Core Flood Tank into the RCS. The Core Flooding System is only required to operate in the event of a Loss Of Coolant Accident (LOCA).
- 32.
Fans C21-1 (Train 1) and C21-2 (Train 2) supply cool air from the emergency condensing units to the Control Room. The fans are required operable to maintain proper temperature for Control Room instrumentation and habitability.
- 33.
A/C Units S33-1 (Train 1) and S33-2 (Train 2) (water-cooled) cool the incoming air to provide suitable temperatures for the Control Room.
- 34.
A/C Units S33-1(S33-2) Refrigerant Isolation Valve SV4823A (SV4827A) provide refrigerant to the Service Water cooled condensing heat exchanger and are required for proper operation of S33-1(S33-2).
- 35.
NUMBER NOT USED
- 36.
NUMBER NOT USED
- 37.
The CREVS Cooling Coils E106-1 and E106-2 are required functional to assure proper operation of CREVS. These are passive mechanical components and will not be affected by a fire (except in Fire Area HH, where the components are located).
- 38.
The CREVS Filter Banks F22-1 and F22-2 filter the air entering the Control Room.
These are passive components and will not be affected by a fire outside of the Control Room (except in Fire Area HH, where the components are located).
- 39.
Pumps P56-1 (P56-2) is required not to spuriously start in the case that the associated CTMT Spray Valve CS1530 (CS1531) spuriously opens. Procedures call for tripping the pump.
- 40.
Valves CS1530 and CS1531 are required not to spuriously open only if the associated CTMT Spray Pump also spuriously starts. The spurious opening of 1 of these valves concurrent with the spurious starting of the associated pump would spray unwanted water into CTMT, thereby potentially causing primary system depressurization.
- 41.
Pumps P42-1 (Train 1) and P42-2 (Train 2) provide flow for the DHR/LPI mode. The pumps are required to be operable to achieve cold shutdown.
- 42.
Valves DH01A (Train 2) and DH01B (Train 1) are normally open and are required to remain open to allow injection into the RCS during decay heat removal.
- 43.
Valves DH07A (Train 2) and DH07B (Train 1) provide BWST inventory to the DHR/LPI pumps in the LPI mode, and the HPI System for high pressure RCS Injection. Since
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-29 FHAR Rev 28 9/2018 Valves DH7A and DH7B are normally depowered, spurious actuation of these valves is not a concern.
- 44.
Valves DH09A (Train 2) and DH09B (Train 1) provide suction from the Containment Sump in the event of a LOCA when BWST inventory is de-pleted. The valves are normally closed and are required closed for Safe Shutdown, from an Appendix R standpoint, so that BWST inventory is not diverted to the CTMT sump in the event of spurious opening of the valves. If this were to occur, the Containment Emergency Sump could fill up with water to the point that water could come in contact with the Reactor Vessel and thereby possible cause thermal shock. Since Valves DH9A and DH9B are normally depowered, spurious actuation of these is not a concern.
- 45.
Valves DH11 and DH12 are required to be open when the system is operated in the DHR mode. Alternatively, Manual Valves DH21 and DH23 may be opened locally to bypass these valves. (Since valves DH11 and DH12 are normally depowered, spurious actuation of these valves is not a concern).
- 46.
Valves DH1517 (Train 1) and DH1518 (Train 2) are required to be open in the DHR mode to provide suction for the DHR Pumps from the Reactor Coolant System.
- 47.
Valves DH2733 (Train 1) and DH2734 (Train 2) are required to be open to provide BWST inventory to the RCS in the LPI mode.
- 48.
Valves DH13A (Train 2) and DH13B (Train 1) provide the capability to bypass the DHR Coolers. They are normally closed. The inability to open these valves is not a concern.
Spurious actuation of the valves is the only concern.
- 49.
Valves DH14A (Train 2) and DH14B (Train 1) are normally open and are required to be open to provide flow through the DHR Coolers when in the DHR mode.
- 50.
NUMBER NOT USED
- 51.
Valves DH63 (Train 2) and DH64 (Train 1) are required to be open when in the Piggyback mode of the HPI System. They are required to be closed when in the DHR or LPI mode. Note that the Piggyback mode of HPIS, is not accredited for Safe Shutdown.
- 52.
Valves DH2735 and DH2736 are located in the Decay Heat Removal System Pressurizer auxiliary spray flowline. Spurious simultaneous opening of both valves when Reactor Coolant system pressure is less than the operating pressure of the High Pressure Injection /Decay Heat Remoal System could result in loss of Reactor Coolant System pressure control. Spurious opening of these valves is not a concern when Reactor Coolant System pressure is greater than the operating pressure of the High Pressure Injection/Decay Heat Removal System because Check Valve RC51 would prevent backflow.
- 53.
NUMBER NOT USED
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-30 FHAR Rev 28 9/2018
- 54.
DHR Coolers E27-1 and E27-2 are required functional to support proper operation of the DHRS. These components are passive mechanical components.
- 55.
The BWST (T-10) is required functional to provide a source of borated water for the DHR/LPI, HPI and Makeup Systems.
- 56.
Pumps P195-1 (Train 1) and P195-2 (Train 2) are only required to fill the EDG Day Tanks on low Day Tank level. However, each Day Tank has a 20-hour capacity of fuel oil to supply the EDG. Therefore, these pumps would only be required after 20-hours of EDG operation.
- 57.
Valves DA2987, DA2988, DA2989 and DA2994, as well as valves DA60, DA61, DA62, and DA63, are air-actuated valves controlled by air from valves DA1147A/B (Train 1) and DA1148A/B (Train 2).
Since these valves have no electrical interface, they are included on the SSCL (Appendix A) but are not identified in Appendix B.
- 58.
Either the engine-driven Fuel Oil Pumps [P205-1 (Train 1) and P205-2 (Train 2)] or the motor-driven Fuel Oil Pumps [P201-1 (Train 1) and P201-2 (Train 2)] can supply fuel oil to the engine. The DC motor-driven fuel oil pumps are a backup to the engine-driven pumps. The engine-driven pumps are integral to the EDG.
- 59.
Valve DA1147A, B (Train 1) and DA1148A, B (Train 2) are required to open to introduce air from the EDG Starting Air Receivers to the Air Starting Motors.
- 60.
EDGs K5-1 and K5-2 are required operable to power the essential electrical distribution system in the event of a Loss Of Offsite Power (LOOP).
- 61.
EDG Day Tanks T46-1 and T46-2 supply fuel to the EDGs. They are required to remain functional. No remote indication is available to monitor EDG Day Tank level. However, the day tanks are sized to provide fuel for at least 20-hours. Level indication is provided locally.
- 62.
The fuel oil in EDG Fuel Oil Storage Tanks T153-1 and T153-2 is required only after the Day Tank level is depleted. However, a backup supply of fuel maybe provided via an Emergency Fill Connection.
- 63.
Each receiver (i.e. T86-1 through -4) has the capacity to provide 5 starts without recharging. They are strictly passive mechanical components. They are required to remain unaffected by a fire.
- 64.
The air starting motors are used to start the EDGs and are strictly mechanical devices.
There are 8 of these motors, 1 set of 2 per air receiver.
- 65.
NUMBER NOT USED
- 66.
NUMBER NOT USED
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-31 FHAR Rev 28 9/2018
- 67.
NUMBER NOT USED
- 68.
The EDG Jacket Water Pumps (P148-1A/B and P148-2A/B), Scavenger Pumps (P264-1 and 2) Piston Cooling Pumps (P265-1 and 2), and Main Lube Oil Pumps (P150-1 and 2) are all engine-driven. There is no electrical interface with these components.
- 69.
EDG Jacket Cooling Water Heat Exchangers E10-1 (Train 1) and E10-2 (Train 2) are required to remain functional to cool the EDGs. These are passive mechanical components.
- 70.
The Essential Electrical Distribution System is required to be operable to power Safe Shutdown equipment in the event of Loss Of Offsite Power. Essential MCCs not identified on the SSCL do not power Safe Shutdown equipment.
- 71.
MCC E16A is the power supply for MCC E16B.
- 72.
MCC E16B is the power supply for the PORV Block Valve RC 11.
- 73.
Control Room Control Panel C5717 provides power to various valve position indicating lights including the Main Steam Line Isolation Valves.
- 74.
Control Room Bench Boards C5705 and C5706 provide power to various (local and Control Room) valve position indicating lights. Control Room Bench Board C5708, C5709 and C5716 provide power to various (local and Control Room) valve position indicating lights and process monitoring indicators (Dixsons).
- 75.
MCC F11B is required operable to permit closing of Valve MS107A.
- 76.
MCC F11E is a power supply for Cold Shutdown components only.
- 77.
MCC F71 is the power supply for the MDFP Auxiliary Lube Oil Pump P242-1.
- 78.
480 VAC Switchgear F7 powers MCC F71.
- 79.
MCCs E15 and F15 are power supplies for MCC EF15.
- 80.
Diesel Control Panels C3615 (Train 1) and C3616 (Train 2) provide control power to various components required for EDG operation.
- 81.
4160V Switchgear C2 is required to be operable to power the Backup Service Water Pump in those fire areas where credit is taken for the pump.
- 82.
4160V Switchgear D2 powers the Motor Driven Feedwater Pump (P-241).
- 83.
120V AC Distribution Panels Y3 and Y4 are alternates for Panels Y1 and Y2, respectively.
- 84.
120V AC Distribution Panels YAU and YBU Power Non-Nuclear Instrumentation.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-32 FHAR Rev 28 9/2018
- 85.
125V DC Distribution panel D2N powers the PORV (RC2A).
- 86.
125V DC Distribution Panels DBN, DBP and DAN, DAP provide control power to 4160V Switchgear D2 and C2, respectively, which are needed to backfeed diesel power to non-essential loads (See notes 81 & 82).
- 87.
The Station Batteries (1P, 1N, 2P and 2N) are required operable to assure a backup DC supply in the event that the Battery Chargers are not available to supply the DC MCCs.
USAR Section 8.3.2 demonstrates that the batteries can supply essential and non-essential loads for at least 1-hour, after which a charger or backfeeding can supply Safe Shutdown loads.
- 88.
The Battery Chargers maintain the DC MCCs powered from 480V AC Essential Power.
- 89.
Inverters YVA and YVB convert 125V DC to 120V AC for Distribution Panels YAU and YBU.
- 90.
Inverters YV1, YV2, YV3 and YV4 convert 125V DC to 120V AC for use by Essential 120V AC Instrumentation Distribution Panels. FCR 86-0272 added constant voltage transformers (CVT). Transfer of the essential distribution panels to the CVT is automatic for Y1, Y1A, Y2, Y2A, Y3 and Y4.
- 91.
NUMBER NOT USED
- 92.
Pumps P58-1 (Train 1) and P58-2 (Train 2) provide high pressure injection into the RCS.
They are required operable to achieve and maintain Hot Standby and to go to Cold Shutdown.
- 93.
Pumps P197-1 (Train 1) and P198-1 (Train 2) provide a constant circulation of lube oil for the HPI Pumps. They are required operable to achieve and maintain Hot Standby and to go to Cold Shutdown.
- 94.
DC Lube Oil Pumps P197-2 (Train 1) and P198-2 (Train 2) provide lube oil to the HPI Pumps in the event that the AC Lube Oil Pumps fail. These pumps are alternates for the AC Lube Oil Pumps.
- 95.
Valves HP31 (Train 2) and HP32 (Train 1) are required open when their respective HPI Pump is operating to provide an HPI Flow recirculation path until RCS Pressure is low enough to promote HPIS Flow into the RCS.
- 96.
Valves HP02A and B (HP02C and D) are required open to provide injection into the RCS via HPIS Train 2(1).
- 97.
Valve HP1556 is required to be open to provide a recirculation path to the BWST for the Makeup pumps. Its internals have been permanently removed to protect it from an electrical fault potentially closing the valve. Valve HP1556 must be manually opened locally before Makeup Pump recirculation to the BWST can be established.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-33 FHAR Rev 28 9/2018
- 98.
The EDG Rooms are each ventilated by 2 half-capacity supply air fans [C25-1 and 2 (Train 1) and C25-3 and 4 (Train 2)] to ensure a proper environment for EDG operation.
The supply fans in the EDG Rooms are interlocked so that the fans operate any time the EDG is operating. The air from the EDG Rooms is discharged directly to the atmosphere through the roof.
- 99.
NUMBER NOT USED 100. 100% capacity Vent Fans C71-1 (Train 1) and C-133 (Train 2) ensure adequate cooling of the L.V. Switchgear Rooms following a Loss Of Offsite Power (LOOP) or failure of the normal ventilation system. Credit is not being taken for the normal ventilation system since Appendix R requires the loss of offsite power condition be assumed possible.
101. One 100% capacity Q exhaust fan per pump room [(C73-1 Train 1) and C73-2 (Train 2)] provides the necessary room cooling to ensure the proper operation of AFWS.
102. NUMBER NOT USED 103. Fans C78-1 (Train 1) and C78-2 (Train 2) are required to be operable following a Loss Of Offsite Power and high room temperature, or failure of the normal, non-Q exhaust fans. Since Appendix R requires that the case of Loss Of Offsite Power be considered, these fans are determined to be required for Shutdown. No credit is being taken for the non-Q ventilation system.
104. TE-RC3A6, TE-RC4A2, TE-RC4B3 and TE-RC3B5 provide local RCS Hot and Cold Leg temperature monitoring. By use of portable temperature indicators (TI-5503 and TI-5504). Connections are in Room 303 (Train 1) and Room 314 (Train 2).
105. Two 50% capacity fans per Channel [C99-1 and 2 (Train 1) and C99-3 and 4 (Train 2)]
provide adequate Service Water Pump Room ventilation to maintain room temperature within design limits while shutting down.
106. Dampers HV5305A and B, and HV5305 are required to be open for Shutdown to assure adequate Low Voltage Switchgear Room 429 ventilation.
107. Dampers HV5314 and HV5314A are required to be open for Shutdown to assure adequate Low Voltage Switchgear Room 428 ventilation.
108. NUMBER NOT USED 109. NUMBER NOT USED 110. Dampers HV5329A, B and C are required to be open to ensure air supply and exhaust for the EDG Room Vent Fan 1.
111. Dampers HV5336A, B and C are required to be open to ensure air supply and exhaust for the EDG Room Vent Fan 2.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-34 FHAR Rev 28 9/2018 112. NUMBER NOT USED 113. NUMBER NOT USED 114. NUMBER NOT USED 115. Battery Room Dampers HV5597 (Train 1 - Room 429B) and HV5598 (Train 2 - Room 428A) are required to be open to assure proper Battery Room Q ventilation.
116. NUMBER NOT USED 117. NUMBER NOT USED 118. Fan C100 and Ventilation Louvers HV0531A and HV0532A provide ventilation for the Backup Service Water Pump. HV0531A and HV0532A are spring loaded to open on loss of power.
119. NUMBER NOT USED 120. The Main Steam Isolation Valve MS101 (MS100) is required to shut to isolate SG1-1(SG1-2) and thereby provide steam to the AFW Pump Turbine 1(2). SV101C, F (SV100C, F) are not required for Safe Shutdown, MS101(100) will close on spring pressure.
121. Valve MS101-1(MS100-1) bypass MS101(MS100) and is opened during Startup to heat the downstream of the Main Steam System before MS101(MS100) is opened. During normal operation the valve is closed. The concern is that if the valve was to spuriously open that steam would be diverted to the condenser instead of the AFW Pump Turbine.
The valve is located on a 2-inch line which could potentially divert significant steam if the valve was too inadvertently open. Since this is a spurious open concern only, control power is not required for SSD.
122. NUMBER NOT USED 123. NUMBER NOT USED 124. Valve ICS11B(ICS11A) provides secondary side pressure control and RCS cooldown capability when the condenser is not available. This valve is required operable to achieve Hot Standby and for going to Cold Shutdown, but fails closed on loss of air or the SV-ICS11A(B) and local manual operation is required by Procedure DB-OP-02501, Serious Station Fire.
125. NUMBER NOT USED 126. NUMBER NOT USED 127. Pumps P37-1 (Train 1) and P37-2 (Train 2) provide injection into the RCS to maintain RCS inventory. One is normally in operation while the other is on standby. They are
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-35 FHAR Rev 28 9/2018 rated for normal RCS Pressures. Note that this system is utilized as a backup to the HPI System in those fire areas where both trains of HPIS may be lost due to a fire.
128. Pumps P-371B (Train 1) and P-372B (Train 2) provide lube oil to their respective Makeup Pump when in operation.
129. Pumps P-371C (Train 1) and P-372C (Train 2) are redundant to the Main Lube Oil Pumps.
129A. Pumps P-371A (Train 1) and P-372A (Train 2) provide lube oil to their respective Makeup Pump gears.
130. Pumps P-371D (Train 1) and P-372D (Train 2) provide lube oil to their respective Makeup Pump gears.
131. The Makeup Containment Isolation Valves MU6421 (Train 1) and MU6422 (Train 2) must be open to allow Makeup Injection into the RCS. Valve MU6421 is normally closed and MU6422 is normally open.
132. The Makeup Pump Discharge Valves MU6419 (Train 1) and MU32 (Train 2) are required to be open to allow for Makeup Pump discharge to the RCS. Alternatively, MU32 Bypass Valve MU6420 may be opened in lieu of MU32 in the event MU32 cannot be opened.
133. The Makeup Cross Connect Isolation Valves MU6409 (Train 1) and MU6408 (Train 2) are required to remain open to provide Makeup flow for RCP Seal injection and Makeup Recirculation Flow to the BWST.
134. The Makeup Recirculation Isolation Valves MU6407 (Train 1) and MU6406 (Train 2) are required to remain open to provide a Makeup flow recirculation path to the Makeup Tank until RCS Injection is established. These valves need to close once RCS Injection is commenced. Makeup recirculation to the BWST is established by opening manual Valves MU208, HP29 and HP1556 locally.
135. The 3-way Makeup Pump Suction Valves MU6405 (Train 1) and MU3971 (Train 2) are required to be operable to realign Makeup System suction from the Makeup Tank to the BWST.
136. The Makeup Tank (T-4) provides an initial source of borated water for RCS Injection utilizing the Makeup System. In the event inventory in the Makeup Tank is depleted, the BWST provides a backup supply of borated water for RCS Injection. Note that no remote Makeup Tank monitoring capability exists.
137. The Seal Injection Inlet Isolation Valve MU19 is required to be throttled to provide proper amount of Makeup System flow to the RCP Seals. In the event this valve is unavailable, Manual Isolation Valve MU214 can be closed and Manual Bypass Valve MU216 can be throttled.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-36 FHAR Rev 28 9/2018 138. Seal Injection Filters F59-1 and F59-2 are required functional to filter RCP Seal Injection flow impurities.
139. Seal Injection Inlet Isolation Valves MU66A through D are required to remain open to provide RCP Seal Injection Inlet flow from the Makeup or HPI Systems.
140. Seal Injection Return Isolation Valves MU59A through D are required to be open to maintain RCP Seal Injection return flow from the RCP Seals.
141. The RCP Seal Return Isolation Valve MU38 is required operable to close to isolate RCP Seal Return and is required open to provide RCP Seal Injection Controlled Bleedoff to the Makeup Tank. This valve is operated manually within 8-hours.
142. The RCS Seal Return Coolers E26-1 and E26-2 are required to ensure proper cooling of the RCS Seal Return. These are passive mechanical components and will not be affected by a fire.
143. When RCS Letdown is required to be isolated in order to maintain RCS inventory, either MU02A or B can be closed to isolate Letdown. Alternatively, both MU01A and B or MU03 can be closed to perform this function. RCS Inventory control is maintained by a controlled plant cooldown if letdown is not available. Although RCP seal injection and letdown are not required for safe shutdown, they are detailed in the FHAR because availability of these systems simplifies safe shutdown and results in enhanced plant control. In such a case, Valves MU02A, B, MU03 and either MU01A or B must be assured open. Valve MU03 requires local manual operation if air or solenoid power is unavailable.
144. The Makeup System Letdown Coolers E25-1 and E25-2 are required to ensure proper RCS Letdown cooling.
145. The Letdown Block Orifice Isolation Valve MU04 is required to be open to promote RCS Letdown. Alternatively, manual bypass valve MU06 may be opened to provide RCS Letdown. Note that this valve may be closed for RCS Letdown isolation in lieu of Valves MU02A, B, MU03 or MU01A and B. Note that Valve MU04 is not powered by the diesels and would therefore not be remotely operable in the event of a Loss Of Offsite Power (LOOP).
146. Filter YF35 is a passive component. The ability to perform its function is not affected by a fire.
147. The Mixed Bed 1-1 Letdown Inlet Valve MU10A is required to be open to promote RCS Letdown through its associated Mixed Bed Tank T5-1. Alternatively, either Mixed Bed 1-2 Letdown Inlet Valve MU10B or Cation Bed 1-3 Letdown Flow Valve MU1903 may be opened to allow flow through their respective Mixed or Cation Beds (T5-2 and T5-3, respectively). Note that these valves are not powered from the diesels and would therefore not be remotely operable in the event of a Loss Of Offsite Power (LOOP).
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-37 FHAR Rev 28 9/2018 148. The Letdown to Radwaste Three-Way Valve MU11 is normally aligned to the Makeup Tank and is required operable to divert RCS Letdown to the Clean Waste Receiver Tanks (T15-1 and T15-2) as necessary. Note: MU11 is not powered from the diesels and would not be remotely operable in the event of a loss of offsite power and therefore may require manual operation.
149. Manual Valves HP26 and 27 are required to be open to re-establish seal injection when using HPIS for RCS inventory control.
Manual Valve MU182 is required to be closed to isolate seal return from the MU Tank to prevent overfilling the MU Tank.
Manual Valve MU97 is required to be opened to divert seal return to the Clean Waste Receiver Tanks to prevent overfilling the MU tank.
Manual Valves WC119 and WC120 are required to be open to align Seal Return and Letdown to the Clean Waste Receiver Tanks.
150. The Auxiliary Shutdown Panel C3630 provides power to various process monitoring instruments (See Note 162) and provides control of Aux Feedwater Throttle Valves ICS038A and B.
151. Valves WC3560 and WC1743 (or WC1747) are required open and WC1453 is required to be closed to provide an RCS Letdown path to the CWRT.
152. NUMBER NOT USED 153. Source Range Monitors NI-1 and 2, NI-5874A and NI-5875A in the Control Room or NI-5874C in the Auxiliary Building are required. I.E. Information Notice 84-09 specifically identifies Source Range Flux monitoring as one of the minimum monitoring capabilities required by the NRC to meet Appendix R (1 Train is required operable for S/D).
154. Pressurizer Level Indicators LI-RC14-1, -2, -3 and -4 are required. I.E. Information Notice 84-09 specifically requires the availability of Pressurizer Level Indication to meet Appendix R requirements (1 train is required operable for S/D).
155. Pressurizer Level Recorder LRS-RC14 provides an alternate means of monitoring Pressurizer Level in the event that Indicators LI-RC14-1 and LI-RC14-2 are not available.
156. Steam Generator Pressure Indicators PI-SP12A, PI-SP12A-1, PI-SP12B, PI-SP12B2 in the Control Room and Pl-SP12A1 and PI-SP12B1 in the ASP are required. I.E.
Information Notice 84-09 specifically mentions steam generator pressure as 1 of the minimum monitoring capabilities required to meet Appendix R (the Train of the SG being accredited for S/D is the Train of instrumentation that must be available).
157. Steam Generator Startup Level Indicators LI-SP09A1, LI-SP09A8A, LI-SP09B1, LI-SP09B8A, LI-SP09A8A, and LI-SP09B8A in the Control Room and LI-SP09A3 and
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-38 FHAR Rev 28 9/2018 LI-SP09B3 in the ASP are required. I.E. Information Notice 84-09 requires the availability of wide range SG Level Indication for S/D. However, the preferred mode of operation by TE is to use the Startup Range Monitors (0-250) which are provided from both the Control Room and Auxiliary Shutdown Panel because they are safety grade, and in the cooldown mode the AFW System will be operating such that steam gene-rator(s) level is to be maintained within this monitoring range. Should the steam generator level rise above the specified range, AFW will be automatically or manually stopped (from the Control Room or Auxiliary Shutdown Panel) to bring down SG level.
The full (wide) range (0-600) SG Level Indicators are not used during power operation and are primarily used when filling and draining the SGs.
158. LI-SP09A8 and LI-SP09A9 (LI-SP09B8 and LI-SP09B9) provide a redundant means of monitoring SG1-2 (SG1-1) Startup Level in Fire Area FF at the SFRCS Cabinets located in the Cabinet Room (Room 502).
159. RCS Loop Pressure Indicators PI-6365A, PI-6365B, PI-RC2A3, PI-RC2A4, PI-RC2B3, PI-RC2B4 in the Control Room and PI-6365A1 and PI-6365B1 in the ASP are required.
I.E. Information Notice 84-09 requires that Pressurizer Pressure Indication be available for S/D. However, Davis-Besse does not have Pressurizer Pressure Indication, specifically. Alternatively, RCS Loop Pressures can provide the necessary RCS pressure indication for S/D purposes (1 channel of the Train accredited for S/D is required available).
160. RCS Cold Leg Temperature Indicators TI-RC4A2, TI-RC4A4, TI-RC4B2, TI-RC4B4 in the Control Room and TE-RC4A2 and TE-RC4B3 in the Auxiliary Building are required.
I.E. Information Notice 84-09 requires that RCS Cold Leg Temperature Indication be available for S/D.
161. RCS Hot Leg Temperature Indicators TI-RC3A5, TI-RC3A6, TI-RC3B5, and TI-RC3B6 in the Control Room, TI-RC3A4 and TI-RC3B2 in the ASP, and TE-RC3A6 and TE-RC3B5 in the Auxiliary Building are required. I.E. Information Notice 84-09 requires the ability to monitor RCS Hot Leg Temperature in the event of a fire anywhere in the plant.
162. HPIS Flow Indicators FYI-HP03A, -3B, -3C and -3D in the Control Room and FYI-HP03A1, -B1, -C1 and -D1 in the ASP are required. I.E. Information Notice 84-09 requires that diagnostic instrumentation be available for Shutdown. HPIS Flow Indication is to be assured available to aid Operations personnel in direct indication of HPIS Injection into the RCS. The power supplies for HPI flow transmitters are the essential metering cabinets X & Y (C3628 and C3629). Both are located in Fire Area R, Room 322. Pressurizer Level Indicator LT-RC-14-2 is powered by NNI and is independent of Fire Area R. This provides an indirect measurement of HPI flow during Shutdown after a fire in Room 314 or 322 which could disable all HPI flow transmitters.
Manual actions also provide for reading HPI Pump Suction and Discharge Pressure to determine flow. For details of the essential metering cabinet refer to Drawing M-544-14-9. For details of the Auxiliary Shutdown Panel refer to Drawings M-544-5-15, M-544-6-10 and M-592 Rev. 6. NNI-X (C5759 B-F) and NNI-Y (C5760 D-F) power supplies are fed from an internal ABT.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-39 FHAR Rev 28 9/2018 163. Makeup Flow Indicators FI6425, FI6435, FIMU34 and FIMU31 are required. I.E.
Information Notice 84-09 requires that diagnostic instrumentation be available for Shutdown. Makeup Flow Indication is to be assured to provide direct indication of Makeup Injection into the RCS.
164. Direct diagnostic indication of Makeup Pump 1 runout is provided in the Control Room by Makeup Flow Indicators, FI-6425 and FI-6435 and locally at the pump via discharge pressure indicator MU25A. Maintaining a minimum pressure of 2260 psig assures a pump flow of less than 250 gpm and no pump runout condition (Ref. 2.6.O).
165. NUMBER NOT USED 166. NUMBER NOT USED 167. NUMBER NOT USED 168. NUMBER NOT USED 169. NUMBER NOT USED 170. NUMBER NOT USED 171. The PORV must be assured not to spuriously open and thereby inadvertently blowdown RCS inventory. The PORV is accredited for providing RCS Depressurization to the HPI Pump Discharge pressure for the case where the HPI System is accredited for RCS inventory control. Alternatively, RCS Depressurization may be performed by opening valves RC200 and RC239A.
172. The spurious opening of RC200 in conjunction with the opening of RC239A, RC239B or RC4632 would result in Pressurizer blowdown to the Pressurizer Quench Tank.
Therefore, either RC200 or both RC239A and B and RC4632 must be assured closed for Shutdown. In those fire areas where credit is taken for RCS Depressurization via the Pressurizer Vent Header, Valves RC239A and RC200 must be assured operable.
173. NUMBER NOT USED 174. Valve RC11 provides an alternate means of isolating RCS blowdown in the event of spurious opening of the PORV. Valve RC11 is required to remain open if credit is taken for operation of the PORV for a fire in a particular fire area.
175. Each RCS Loop High Point Vent, 1 of the 2 Valves (RC4608A or B and RC4610A or B) is required to stay closed to prevent uncontrolled RCS blowdown via the High Point Vent. The one inch SG high point vent valve lines include a restricting orifice sized to limit the flow to within the Makeup System capacity.
176. NUMBER NOT USED 177. NUMBER NOT USED
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-40 FHAR Rev 28 9/2018 178. NUMBER NOT USED 179. Normally, 2 of the 3 SW Pumps (P3-1, P3-2 and P3-3) are in operation with the third as a spare. One operating pump supplies primary (essential loads) and the other pump supplies nonessential loads and a few essential loads for the redundant train. To provide Service Water to the essential SW loads for Shutdown, only 1 SW pump is required.
180. In the unlikely event that all SW pumps are lost, the Backup SW Pump (P180) can be manually aligned and run on fast speed to supply primary loads.
181. NUMBER NOT USED 182. Valves SW2927 (Train 1) and SW2928 (Train 2) are required to open to supply the CTRM EVS condensing units with cooling water.
183. Valves SW1424 (Train 1), SW1434 (Train 2) and SW1429 (Train 1/2) associated with the respective CCWS train being utilized for Safe Shutdown will need to be assured open. The valve fails open to the desired Safe Shutdown operation, therefore power supplies are not required.
184. Valves SW1356 and SW1366 (Train 1), SW1357 and SW1367 (Train 2) or SW325, SW1358 and SW1368 (Train 1/2) are required to be open when shutting down with their respective Train in order to provide cooling water to the associated CTMT air cooler.
Only 1 Containment Air Cooler is to be in service during Shutdown to ensure adequate cooling is provided to other Safe Shutdown components cooled by the Service Water System. Spurious flow through CAC 3 will be prevented by normally closed manual Valve SW325 (SW331).
185. NUMBER NOT USED.
186. Valve SW1382 (Train 1) or SW1383 (Train 2) is required to be open when the CST Level reaches low level to provide an alternate supply of water for the Auxiliary Feedwater Pumps. In the event one of these valves can not be opened (e.g., hot short damages valve operator) an alternate source of makeup water from the Fire Water System is available.
187. One of 4 Valves (SW2929, SW2930, SW2931 or SW2932) is open and depowered at all times (controlled administratively) to ensure the availability of a SWS Discharge at all times. Thus, spurious closure of the applicable valve is not a problem. The other 3 valves will remain closed.
188. Valves SW1395 (Train 2) and SW1399 (Train 1) provide Service Water to the Turbine Plant Cooling Water System. The portions of the Service Water System supplied by these valves is not required for Safe Shutdown. Therefore, the only concern is that the valve(s) could remain open and provide substantial SWS Flow Diversion. The respective valve for the Train accredited for Shutdown in a particular fire area needs to
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-41 FHAR Rev 28 9/2018 be secured closed for Shutdown in order to assure adequate flow to the essential portion of SWS.
The capability of the SWS to supply Appendix R loads has been evaluated (See Ref. 2.6.Q).
189. SW45, SW46, SW54, SW55, and SWS6 are the Turbine Plant Cooling Water Heat Exchangers (TBCWHX) Isolation Valves. They serve as a backup means of isolating the TBCWHXs if SW1395 (Train 2)/SW1399 (Train 1) is unavailable.
190. NUMBER NOT USED 191. NUMBER NOT USED 192. NUMBER NOT USED 193.
NUMBER NOT USED 194. NUMBER NOT USED 195. NUMBER NOT USED 196. NUMBER NOT USED 197. The Main Steam Safety Valves are mechanical components with no circuits associated with them and a fire is not expected to impact their operation. The Train 1 and 2 Main Steam Safety Valves are located in Fire Area DH, but they are separated by more than 200 feet. There is no automatic suppression system in the fire area but there is area detection. The mechanical nature of the valves, the large separation distance between trains and detection in the area is an arrangement that is satisfactory in spite of the absence of the automatic suppression.
198. On a complete Loss of Offsite Power (LOOP), SFRCS will automatically initiate once all 4 RCPs sense UV, UF (E52B/49). All SFRCS transmitters and pressure switch circuits are designed to be self-monitoring of continuity and a fire-induced open or ground in any input channel will produce a logic channel trip for that individual monitored SFRCS input.
On a loss of control power or with sufficient trips on the inputs (see SF-003 logic diagrams) both AFPT are automatically started. Automatic SG isolation can be manually blocked (reset).
The Appendix R compliance with respect to potential effects of inadvertent actuation of the Safety Features Actuation System (SFAS) and the Steam and Feedwater Rupture Control System (SFRCS) is contained in Reference 2.3.D). This evaluation analyzed the potential for inadvertent actuation of the SFAS and SFRCS trips due to a fire and the resulting impact on Safe Shutdown equipment. The evaluations provided to ensure mitigation of the potential effects of these SFAS and SFRCS trips as analyzed in Reference 2.3.D are included in Section 4.6 in the Table 1s for each Fire Area.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-42 FHAR Rev 28 9/2018 Manual actions are required and are listed in the notes for individual Safe Shutdown components that are required to be in a position/mode other than that after an SFAS/SFRCS actuation. Cables for sensors and actuated devices are included for conservatism so that the potential effects of a fire are identified on a component level specifically for each fire area. Fire damage to the isolated analog low level instrument loop, 4 to 20 ma SFAS input signals cannot cause an SFAS, loss of Ch 1/3 or Ch 2/4 power supplies will initiate SFAS.
The SFRCS system has a first-out feed-only-good logic design that could align feedwater to only one of two intact steam generators if a false actuation signal were generated by a fire that opened 2 complimentary SG pressure channels. Since only one steam generator is required and since manual actions are proceduralized there is no adverse impact on safe shutdown.
Operation of the disconnect switches does not isolate all Control Room circuits and local manual actions are required to close/verify closed the following valves for a fire that affects any control cables since both sets of fuses could blow with a ground that is not cleared before the disconnect switch is operated:
VALVE EWD Required Manual Action MS603 E46B/33 Verify Closed, Close, Trip Bkr, Manually Close MS611 E46B/33 Verify Closed, Close, Trip Bkr, Manually Close AF3870 E46B/33 Verify Closed, Close, Trip Bkr, Manually Open AF3872 E46B/33 Verify Closed, Close, Trip Bkr, Manually Open 199. NUMBER NOT USED 200. NUMBER NOT USED 201. Control Cabinets C6708, C6709, C6714 and C6715 provided control power to the Control Room Emergency Coolers S33-1 and S33-2.
202. MCC E12D powers the Backup Service Water Pump Room Fan (C100).
203. The Diesel Oil Transfer Pump P8-1 is used as a backup for Transfer Pump P195-1. In the event P195-1 is not available, P8-1 can be used to supply fuel oil from Storage Tank T45. Pump P8-1 would not be required until the fuel oil in the EDG Day Tank is depleted. The EDG Day Tank has a capacity for 20-hours of operation at full EDG load.
204. Valve RC147 is located in the Pressurizer Vent Header Line and is normally open. It can be used to manually isolate the Pressurizer Vent Header Line if RC200, RC239A, and RC239B are unavailable.
Davis-Besse Unit 1 Fire Hazard Analysis Report APPENDIX A NOTES A-43 FHAR Rev 28 9/2018 205. No Safe Shutdown equipment is powered from Bus B. The only concern is the potential for a fault associated with Bus B affecting backfeed of MCC D2 from Emergency Diesel Generator 1. This backfeed is utilized only when the Motor-Driven Feed Pump is used in an area accredited for Train 1. To prevent any potentially adverse effects, Breaker HBBD, located at Bus B, will be opened.
No Safe Shutdown equipment is powered from Bus A. The only concern is the potential for a fault associated with Bus A affecting backfeed of MCC C2 from Emergency Diesel Generator 2. To prevent any potentially adverse effects, Breaker HAAC located at Bus A will be opened.
206. The Reactor Coolant System (RCS) Code Safety Valves, RC13A and RC13B, provide over pressure protection for the RCS.
207. MU203 (MU206) Recirc to Seal Return Stop Valve is closed when changing the recirc path for the Makeup Pump from the Makeup Tank to the Borated Water Storage Tank.
208. CC42 is a manual isolation valve in the nonessential CCW supply line. It can be used to isolate flow in this line if CC1495 fails open due to a hot short.
209. CC43 is a manual bypass valve for CC1495. It can be used to regulate nonessential CCW if CC1495 fails closed due to loss of air or a loss of power to its solenoid valve.
210. When using the Motor-Driven Feed Pump to supply feedwater to Steam Generator 2, the Train 1 MDFP Flow Isolation Valve, FW6397, can be used to prevent the flow from diverting to Steam Generator 1 if the Train 1 MDFP Flow Control Valve is unavailable (i.e, due to a loss of Train 2 power).
211. The Makeup System is normally exposed to RCS pressure up to Restricting Orifice ROMU5. Per P&ID M-031A, Rev 43 and Plant Design Standard 12501-M-601, Revision 8, pg 7 the piping upstream of the restricting orifice (CCB) is 1500# class piping. The piping downstream of the restricting orifice is 150# class piping. The letdown relief valve MU1890 protects the low pressure letdown line and equipment from overpressure. If the letdown flow is stopped by erroneous closure of a valve in the low pressure portion of the letdown line, the letdown line pressure would immediately increase to the RCS operating pressure except for relief from the relief valve. Per SD-048, the relief valve capacity is sized to exceed the maximum letdown flow rate obtainable with the block orifice on line and flow control valve MU6 full open.
212.
MU32 will fail open upon loss of air to the valve. MU32 will fail closed upon loss of NNI-X AC power supply, regardless of the NNI-X DC control signal to FYMU32.