ML17039A664

1 to Updated Final Safety Analysis Report, Fire Hazard Analysis Report, Rev. 27, Appendix C-3, Breaker/Fuse Coordination Summary

ML17039A664
Person / Time
Site:	Davis Besse
Issue date:	11/21/2016
From:	FirstEnergy Nuclear Operating Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML17039A594	List: IR 05000247/2016009 L-16-322, 1 to Updated Final Safety Analysis Report, Drawing M-0568, Rev 47 ML17039A599 ML17039A601 ML17039A603 ML17039A604 ML17039A605 ML17039A606 ML17039A608 ML17039A610 ML17039A621 ML17039A626 ML17039A627 ML17039A628 ML17039A636 ML17039A637 ML17039A638 ML17039A640 ML17039A641 ML17039A642 ML17039A643 ML17039A644 ML17039A645 ML17039A652 ML17039A654 ML17039A656 ML17039A657 ML17039A662 ML17039A664 ML17039A676 ML17039A677 ML17039A678 ML17039A679 ML17039A680 ML17039A681 ML17039A682 ML17039A683 ML17039A685 ML17039A705 ML17039A706 ML17039A708 ML17039A711 ML17039A713 ML17039A715 ML17039A717 ML17039A719 ML17039A732 ML17039A733 ML17039A734 ML17039A735 ... further results
References
L-16-322
Download: ML17039A664 (23)

Text

Davis-Besse Unit 1 Fire Hazard Analysis Report C3-i FHAR Rev 26 10/2014 DAVIS-BESSE NUCLEAR POWER STATION UNIT NO. 1 APPENDIX C-3 BREAKER/FUSE COORDINATION

SUMMARY

Davis Besse Unit 1

FIRE HAZARD AI\\TALYS IS APPENDIX C.3 CIRCUIT COORDINATION EVALUATION R E V I S I O N : 2 7 D A T E : t O / t 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES l_N 1 P 2N 2 P cr_

c2 c3 51-5 c3 5 r_5 c 3 6 t 7 c 3 5 1 8 C352]-

c3622 c 3 6 2 8 c3629 c 3 5 3 0 c 3 6 4 5 c4602 c4625 c 4 8 0 8 c 5 7 0 5 c s 7 0 6 c 5 7 0 8 1-PD1_21A r-PD131A 1PD1344.

l_PD103A lPDr_04A 1PD1O5A 2PD22]-A 2PD2 3 t_A 2PD234A 2PD2O34 2PD2O4A 2PD2 O5A

( 1PD1PO5A)

CABLE BUS (APDAT{o 7A)

APAC2 O 1A CABLE BUS (1PDl_P09A)

( lPYl_0sA)

(3PY3 0sA)

(ACV113l-B)

(ACV113 l_c )

(2PD2P0 9A)

(2PY2 0 sA)

(4PY40 sA)

( ICGDI_02C)

( 2CGD2 02C)

( 1CGD102D)

( 2CGD2 02D)

( rcvr0sB)

(2CY2088)

( 1CY108A)

(2Cv20 8A)

( rcvr o4AA)

(2CY2 O 8AB )

(2CY204AA)

(1CY]_08A8)

(2CY2r-r-B)

(zCY41eA)

(ACYAU4 98)

(BCYBUS3B)

( lCYl-l_2C)

DBClPN DC MCC r_

DBClN DBClP DC MCC 1_

DBClPN DBC2 PN DC MCC 2 DBC2N DBC2P DC MCC 2 DBC2 PN AC1l,0 D2 VARIOUS P 1 8 0 xAc EDG EDG I{VAC EDG IIVAC EVr_r_31 R C 3 0 0 7 EDG EDG IryAC EDG }TVAC EDG EDG EDG VARIOUS IE INST IE INST AUX SDP AUX SDP AFWS NI AFWS NI VARTOUS VARIOUS VARIOUS VARIOUS VARTOUS 125VDC BATTERY CIARGER DC MCC 12sVDC BATTERY CHARGER 1-25VDC BATTERY CHARGER DC MCC

]-2sVDC BATTERY CHARGER FDR TO BAT CHGR DBC2PN DC MCC BATTERY CHARGER DBC2N BATTERY CIARGER DBC2 P DC MCC FDR TO BAT CHGR DBCzPN LARGEST CONT PWR FUSE BREAKER CONT POWER ALT RECEPTACLE BACKUP SWP BUS TIE XFMR AC DG GOV & VLTG CNTRL (D1P)

VAR, LARGEST LOAD (Y2)

VAR, LARGEST LOAD (Y2)

FP DSL DAY TNK VLV (D1P)

FP DSL DAY TNK VLV (Y1)

DG GOV & VLTG CNTRL (D1P)

VAR, LARGEST LOAD (Y2)

VAR, LARGEST LOAD (Y2)

DG GOV & VLTG CNTRL (DT-P)

DG GOV & VLTG CNTRL (DT.P)

DG GOV & VLTG CNTRL (D]-P)

RECEPTACLE

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD (Y1A)

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD (Y1A)

VAR, LARGEST LOAD USED RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE YES YES YES YES YES YES YES YES YES YES YES YES YES ACC YES YES ACC YES ACC ACC YES YES YES ACC ACC YES YES YES YES YES YES ACC ACC YES YES YES YES YES YES ACC ACC ACC 1

1 1

l_

1 1

1 1_

1_

1 1

1 1_

L, 2 A 1

l_

4, 2 0 1

1, l - 3 5, l - 3 5

5 1

1, 1 3 5, l - 3 1

1 1

1 l_

1 1 -, 1 4 1 -, 1 4 1, 9 a r 9 1, 9 L ' 9 7

5, 1 8 5, 9, 1 8 6, 9, 1 _ 8 L, 9 SYMBOLS;

= ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD A}TALYS IS APPENDIX C.3 CTRCUIT COORDINATTON EVALUATTON R E V I S T O N : 2 7 DATE.LO / L6 SUMIVIARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION COORD-INATED NOTES c 5 7 0 9 c5 7l_5 c 5 7 1 5 c 5 7 t 7 c 5 7 1 8 c 5 7 5 5 C c 5 7 5 5 D c 5 7 5 5 E c 5 7 5 5 G c5 7 55D cs7s9c c 5 7 6 0 D c5 751_A c 5 7 5 2 A c57 52C c57 52D c57 52F.

c57 62F c57 52G c5 75 34.

c 5 7 5 3 8 c s 7 6 3 C c 5 7 5 3 D c57 92 cs1 92A c 5 7 9 8 (zcvzLl-c )

(ACYAU3 2A)

(BCYBU2 3A)

( r-cYl-l-2A)

(2CY2l-1-A)

( 1CY115A)

( z C Y 2 1 2 A )

(ACYAU4 3A)

(BCYBU23B)

(2CD2Pl-9A)

(2CY205A)

(2CD2Pl_9A)

(2CY2 0 7A)

(2CY206A) 2CY2A205A (2CD2Pr-8A)

(4CY40 7A)

( BPYBUslA)

(APYAU2 5A)

(rcvrr-sB)

( 1CYE2l-l-A)

( 1CY12l-A)

( r-PD1P1l_A)

( 1CD1P1-8A)

(rcvr07A)

( rcvr0sA)

( tcvrosA)

(1PYr-1_1AA) 1CY1Ar_

02A lCYt_1_2B

( r-cD1P]- eA)

( 1CD1Pt-9A)

(3CY3 0 7A)

(2CY22LB)

(2PD2P11A')

(2CY2158 )

(2CYF21l-A)

(2CY2o 7AA)

VARIOUS VARIOUS VARIOUS VARIOUS VARTOUS VARIOUS VARIOUS VARIOUS VARIOUS SFAS NNI SFAS SFAS Nr/RPS IE INST VARTOUS SFAS NNI X

NNI Y

SFRCS SFRCS SFRCS SFRCS SFAS SFAS N I,

R P S N I,

R P S 1E INST IE INST IE INST SFAS SFAS SFAS SFRCS SFRCS SFRCS SFRCS PA},I RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE SFAS ACTUATED SV CH ].

RCS PRESSURE SFAS ACTUATED SV CH 1 SFAS ACTUATED SV CH 1

VAR, LRGST LOAD USED NI

VAR, LARGEST LOAD USED RECEPTACLE SFAS ACTUATED SV CH 1

VAR, LARGEST LOAD USED (X)

VAR, LARGEST LOAD USED

vAR, SFRCS RLY CH 4 (D2P)

vAR, SFRCS RLY CH 4 (D2P)

VAR, SFRCS RLY CH 4 (D2P)

VAR, SFRCS RLY CH 4 (D2 P )

SFAS ACTUATED SV CH 1 SFAS ACTUATED SV CH 1

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED SFAS ACTUATED SV CH 1 SFAS ACTUATED SV CH 1 SFAS ACTUATED SV CH ].

VAR, SFRCS RLY CH 4 (D2P)

VAR, SFRCS RLY CH 4 (D2P)

VAR, SFRCS RLY CH 4 (D2P)

VAR, SFRCS RLY CH 4 (D2P)

SG HI POINT VENT VLVS YES YES YES ACC ACC ACC ACC YES YES YES ACC YES ACC ACC ACC YES ACC YES YES ACC ACC ACC ACC YES ACC ACC ACC ACC ACC ACC YES YES ACC ACC ACC ACC ACC YES 1

6, L 8 6, L g 3 1 31_

5, 1 8 5, 1 8 5, 1 8 5, L B 5

L, 9, t ' 7 7

5, 9, L 7 L, 9, 1 - 9 L, 9, 2 5 1

L, 9, 1 7 I, 2 8 L, 2 8 L, 9, 1 7 5, 9, L 7 5, L 7 5, L 7 1

L, 9 t, 9 r, 9 1, 9 1, 9, 2 6 7, 9 1

1 L r 9 5, t 7 5, 1 7 t, 9, L 7 5, 9, L 7 1-SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit l-FIRE HAZARD AT{ALYS IS APPENDIX C-3 CIRCUIT COORDINATION EVALUATION REVISION 227 D A T E : t A / t 6 SUMVIARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES c57 98 c57 99 c 5 7 0 8 c67 09 c671-4 c67L5 CDE-1].B1 CDE-ILB2 cDE-1-2Ar, cDE-t2A2 CDF - 1]-A1 cDF-11C CDF-11D cDF12A-r_

D1 D1N DlNA D 1 P (2Cv20eAA)

( 1CY10 7AA)

( 1CY10 9AA)

( rcvr04A.)

(2CY204B)

( rcvr048)

(2CY2o4A)

( 1CY]-17C)

( 1CY117D)

(1CDLP2 0A)

( 1 C D 1 P 2 0 C )

( 2 C v 2 1 _ 4 C )

(2CD?P2OB)

( 2CD2P2 0D)

( 2CD2P2 OA) 2PAD1O8A

]-CD1N]-5A 3CD1N15A 3PD]-NO34' 3PD1NO5A 3PD1NO7A 3PD1NO9A 3 PD]-N]-4A APDl.NO4A r-PD135A LCD1P10A 1CD]-Pr_3A.

1CD]-P154.

lCDr_P18A 1CD1P19A

]-CDl_P2 0A r_cD1_P2 0B t-cDl_P20c 1_CDr_P214

].CDr_P218 r_cD1P21C 1CD1P2]_D 1 C D 1 P 2 3 B 1 C D 1 P 2 3 C 1CD1P23D 1PD1PO3A 1PD1PO54'

]-PD1PO5A 1PD1PO7A 1 P D 1 P O 8 A PAM PAM PAM CREVS CREVS CREVS CREVS VARIOUS VARIOUS VARIOUS VARTOUS VARIOUS VARIOUS VARIOUS VARIOUS CD zc6 459 R C 3 5 0 3 YRF3 c1 E1 c 3 5 1 5 c 4 8 0 5 DAII MSr-05 RC3 705 zc5 452 PDIS50r_7 c57 52C c5 75 3D cDE-12A-1 RC4 6 04 cDE- ]-2A-2 RC350r_

R C 3 7 0 1 CDE ]- 1D R C 3 5 0 7 FtsL427 C F r s 1 4 3 2 C FIS]-422C YRF].

C 1 P 4 3 - 3 E 1 P 3 - 3 SG SG SG HI POINT VENT VLVS HI POTNT VENT VLVS HI POINT VENT VLVS

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED

VAR, LARGEST LOAD USED RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE 4.15KV XFER SWGR MDFP CONTROL VLV POSITION RELAY CABINET RC3603 48 oVAC/12 5VDC RECTTFTER c1 CoNTROL POWER (ALT)

E1 CONTROL POWER EDG1-1 PANEL (NORM)

CRD BKR D SHTINT TRTP CKT 12 sVDC DTST PA}TEL AFPT ]- MS IN ISOL VLV RELAY CABINET AFP #T CTRL VLV POSITTON P D I S 5 O 1 7 SFAS CH 1 SV ' s (D1P )

SFAS CH. 3 LOGIC PANEL AFP SUCT VLV, GOV NON SSD RELAYS DISCONNECT SWITCH RELAY CABINET RC36O1 RELAY CABINET RC3 7 01.

CONTROL POWER TO CDE11D RELAY CABINET RC36O7 FLOW SWITCH CCWS PUMP FLOW SWITCH CCWS PUMP FLOW SWITCH CCWS PUMP 4 8 oVAC/ L2'VDC RECTTFTER C], CONTROL POWER (ALT)

CCW PUMP 3 E1 CONTROL POWER SW PUMP 3 ACC YES ACC ACC ACC ACC ACC ACC ACC YES YES ACC YES YES YES YES YES YES ACC YES YES YES YES ACC YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES ACC YES YES YES YES 5, 1 5 1

5, 1 5 L, L 2 t, 1 - 2 l, t 2 1-,1-2 7, 1 6

' 7, L 6 1

7 5

l_

7 1

5, 2 0 5

2 2 6,

l-1 2

2 3l-1 5

5 2

1 1

1_

7 7

5 5

5 5

1 1

1 2 6,

1 1

1 1

3 1 3 1 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD AI\\TALYSIS APPENDIX C-3 CIRCUIT COORDINATION EVALUATION REVISION 227 D A T E : t O / t 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRIPTTON cooRD-INATED NOTES D 1 P D]-PA D2 D2N D2P DAN 1PD].PO9A' 1PD1P11A 1PD1P12A 1PD]-P144.

ACD]-P2 44.

APDlPO4A r-PDt_07A

( BPDBNO 7A)

BPADz 1OH BPAD2DFTA 2PD2N17A 4 CD2N1 5A 4PD2NO3A 4PD2NO5A 4PD2NO7A 4PD2NO9A 4 PD2N14A BPD2NO4A 2CD2P1 0A 2CD2PL3A 2CD2Pl_5A 2CD2P18A 2CD2Pr_ 9A 2CD2P2 OA 2CD2P2 0B 2 C D 2 P 2 0 C 2CD2P2 0D 2CD2P2LA 2CD2P2LB 2 C D 2 P 2 L C 2CD2P2 3A 2 C D 2 P 2 3 B 2PD2PO3A 2 P D 2 P O 5 A 2 P D 2 P O 6 A 2PD2PO 7A 2pD2P0 8A 2PD2PO 9A 2PD2P114' 2 P D 2 P 1 2 A 2PD2P14A BCD2 P24A BPD2PO4A ACDAN19A ACDAN2 OA ACDA}T214' ACDAI{23A ACDAI{2 5A APDA}TO 1-A APDAI{O2A APDAI{O2B APDANO 3A APDANO4A APDANO 5A APDANO 5A APDAI{O7A APDAI{24A c 3 6 1 5 c57 62A R C 4 8 0 1 c 4 5 0 3 S S 8 1 5 DAP A F 3 8 7 0 VARIOUS P24L F 7 R C 4 5 0 5 RC3 5 04 YRF4 Dl_

F 1 c3 5 r_6 c46L2 DBN 2c5460 z c 6 4 5 L PDIS 5 O ].8 c 5 7 s 5 D c 5 7 5 5 C CDF-12A-1 CDF-11C R C 4 5 0 5 cDF-1LD RC3 702 RC3502 R C 3 5 0 8 F I S I I 4 2 2 D FISI]-427D YRF2 D1 P 4 3 - 3 F1 P 3 - 3 c3 5 r_5 c57 92 RC45 06 c4606 c2736 DBP c4603 xAc c 1 7 0 1 c 2 7 0 L c3625 c 5 7 5 0 A HAO l HAAC E5 E2 E3 E4 C2 RC48 02 EDGI- - ]- PAI\\TEL (NORM)

SFRCS CH.3 RELAYS RELAY CABINET RC4801 CRD BKR B SHTINT TRIP CKT AFPT 1 SPEED MON C2735 125V DC DIST PA}TEL AFWP 1. DISCHARGE TO SG].

RECEPTACLE MTR DRIVEN FEED PUMP SUBSTATION F7 DC CONT PWR TO PORV RELAY CABINET RC3504 gOVAC / 1-2 sVDC RECTTFTER D]- CONTROL POWER F1 CONTROL POWER EDG1-2 PAI{EL LIGHTS CRD BKR C SHIINT TRIP CKT 1-25VDC DIST PANEL MDFP CTRL VLV ZC645O AFP #2 CTRL VLV ZC645I P D I S 5 O 1 8 SFAS CH 4 LOGIC PAI{EL SFAS POWERED SV CONT PWR AFWP GOV coNT PWR SW1383 NON SSD RELAYS NON SSD CONT PWR RELAY CABINET RELAY CABINET RC35O2 RELAY CABINET RC35O8 FLOW SWITCH CCWS PUMP FLOW SWITCH CCWS PUMP gOVAC / 12 5VDC RECTTFTER D], CONTROL POWER CCW PUMP 3 F1 CONTROL POWER SW PUMP 3 EDG1-2 PA}TEL LIGHTS SFRCS CH 4 RELAYS DC CONT PWR TO PORV CRD BKR A SHUNT TRIP CKT AFPT 2 SPEED MON 12sVDC DIST PAI\\TEL CRD BKR B SHUNT TRIP CKT BUS TIE XFMR AC MISC WASTE EVAPORATOR PNL BORTC ACTD EVAPORATOR PNL DG1-]. DC OIL PMP CTRL BOX ALT GEN XFMR CABINET 13.8KV SWGR A DC CTRL 13.8KV SWGR A DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL (ALT) 48OVAC USS DC CTRL 4. 1 5 K V A C S W G R CONT PWR (TO MUTK, SG DRN YES YES YES YES YES ACC YES YES ACC ACC YES YES ACC YES YES YES YES ACC YES YES YES YES YES YES YES YES YES YES YES YES YES YES ACC YES YES YES YES YES YES YES YES YES ACC YES YES YES YES YES YES YES YES YES YES YES YES YES YES 1

l_

I, 2 0 L, 2 0 l_

1 1

2 5

3l_

t_

6 2 6, 3 1 _

1 1

2 6

31.

6 5

2 1

L 1

l_

7 7

5 5

5 1

l_

2 6, 3 1 1_

l_

1 1

1 1

5 5

2 3 1 6

5 6

6 6

6 5

5 6

6 6

6 l_

5 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD A}TALYSIS APPEIIDIX C - 3 CIRCUIT COORDINATION EVALUATION R E V I S I O N : 2 7 D A T E z t o / t 6 SUMIVIARY POWER SUPPLY CIRCUIT COMPONENT DESCRTPTION cooRD-INATED NOTES DAP DBN DBP ACDAP1 9A ACDAP2 1A ACDAP2l-B ACDAP2 2A ACDAP2 3A ACDAP24A ACDAP2 54' ACDAP2 5A ACDAP2 5B ACDAP2 7A ACDAP2 78 ACDAP2 8A ACDAP2 8B ACDAP2 9A ACDAP2 98 ACDAP2 9C ACDAP3 OA ACDAP3 2A ACDAP3 3A ACDAP3 38 APDAPO 14.

APDAPO2A APDAPO2B APDAPO3A APDAPO4A APDAPO 5A APDAPOSA APDAPO 7A APDAPO 8A BCDBN1 9A BCDBN2 OA BCDBN2 1A BCDBN2 3A BCDBN2 5A BPDBNOlA BPDBNO24' BPDBNO2B BPDBNO4A BPDBNO5A BPDBNO 7A BPDBN1]-A BPDBN24A' BCDBPO 9A BCDBP]-64' BCDBPl-7A BCDBPl 8A BCDBPl 9A BCDBP2 OA BCDBP2 OB BCDBP2 14' BCDBP2 2A BCDBP2 3A BCDBP2 4A BCDBP2 5A BCDBP2 7A BCDBP2 8A BCDBP2 9A BCDBP29B BCDBP3 OA BCDBP3 OB R C 4 5 0 1 c 3 3 1 8 c 3 3 1 8 c57 522 x 0 1 x11 c 3 3 0 5 RC3 717 R C 2 8 2 5 R C 3 0 0 3 R C 3 0 0 1 RC3 7r-s RC1750 RC43l_l_

RC2 4 04 R C 3 0 0 s c 3 3 0 4 BCE5 c 3 5 1 0 c 3 6 1 7 c 5 7 5 0 A HAO 1 HAAC E 5 E2 E 3 E4 c2 D 3 6 0 2 c4606 XBD c27 02 c3525 c 5 7 5 0 8 HBOl HB14 F2 F3 D2 F7 RC4804 c6720 c57 922 c 4 3 0 1

.1T53 02 c 3 3 0 3 c 3 5 1 1 c 3 5 1 8 RC4 5 02 c5r_05 c 5 7 5 7 8 c 1 7 0 8

,JT53 02 xo2 x1 RC3 7r-8 RC2826 R C 3 7 1 5 RCr_ 7 51 RCS COOL CABINET FIRE PROTECTION EQUIP FIRE PROTECTION EQUIP SFRCS NON-ESS SV START UP XFMR ].

AUX XFMR 11 GEN ISO PHASE BUS AI\\TNUN RELAY CABTNET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET AUX BOILER CTRL PA}TEL LTG DIST CENTER E5 BRKR RELAY CABINET RELAY CABINET ALT GEN XFMR CABINET 13.8KV SWGR A DC CTRL 13.8KV SWGR A DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL (ALT) 48OVAC USS DC CTRL 4.16Kr/ AC SWGR FUSE PA}TEL D3502 CRD BKR A SHUNT TRIP CKT BUS TIE XFMR BD MISC WASTE EVAPORATOR PNL DG I-2 OTL PMP CTRL BOX ALT GEN XFMR CABINET 13.8KV SWGR A DC CTRL 13.8KV SWGR A DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL BREAKER CONT POWER ALT SUBSTATION F7 RELAY CABINET A\\A/ POSITION INDICATION SFRCS NON ESS SV GEN VOLT REG CABINET GEN FIELD BRKR.JT5302 GEN COOL SYS CABINET RELAY CABINET C351.]-

RELAY CABINET C3518 RCS PRZR HEATERS CABINET COMB BUT VLV STN CABINET EHC SYSTEM CABINET PROCESS SAMPLE PAI{EL GEN FTELD BRKR 'JT5302 START-UP XFMR 02 MAIN XFMR ]-

RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 5

6 6

6 6

5 6

6 6

6 6

5 6

6 6

6 6

5 6

6 6

1 6

6 6

6 6

t_

6 6

6 6

6 6

6 6

5 6

5 1

1 5

6 6

6 6

6 6

6 6

6 6

6 6

6 6

6 6

5 5

SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit l-FIRE HAZARD AI\\TALYS IS APPEIIDIX C - 3 CIRCUIT COORDINATION EVALUATION R E V I S I O N : 2 7 DATE.1-O / !6 SI]MTVIARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES DBP DC MCC 1 DC MCC 2 E 1 E 1 1 A BCDBP3 ].4 BCDBP3 ]-B BCDBP3l.C BCDBP3 2A BCDBP32B BCDBP3 3A BCDBP33B BCDBP3 4A.

BPDBP O 1A BPDBP O 2A BPDBPO2B BPDBPO4A BPDBPO 5A BPDBPO 7A BPDBPO 8A BPDBP]-]-A

]-PDt-01_A r_PDr-06A lPDr_28A lPDr_324 l_PDl_4 5A APD1].14 APD]-].2A APD1134' APD114A APD115A APD1 1 6A APDI-174 APD118A 2PD2O2A 2PD2O5A 2PD233A BPD2 1].4 BPD2l.2A BPD213A BPD214A BPD21.5A BPD216A BPD217A BPD218A

]-PBEl-O5A.

]-PBE1O5A 1 P B E 1 O 7 A 1PBEl-O9A 1PBE1]-OA 1PBEl-1].A 1PBE11-84 lPBE]-1014 1 P B E 1 1 O 2 A 1 P B E 1 1 O 3 A 1 P B E 1 1 O 4 A 1PBEl-1054 1 P B E 1 1 O 5 A 1 P B E 1 1 O 7 A

]-PBE11"L2A lPBE]-1134 t-PBE l-l_ 1_ 5A l_PBEI_1164 RC44t_0 R C 3 0 0 4 R C 3 0 0 2 c 3 3 1 8 c 3 3 1 8 R C 4 4 0 L RC2 3 04 c 5 7 5 0 C c 5 7 5 0 B H B O l HB14 F2 F3 D2 D 3 5 0 3 F 7 D 1 P P 1 - 9 7 - 2 DlPA D1N DlNA D3 7E1 D 5 7 E 1 MP0724 M P o 7 2 1 M P o 2 I 1

]n/A P - 3 7 1 C MPo2 r_0 D2P Pt98 - 2 D2N D 4 1 8 1 D4 9Et_

MPo 72 3 M P 0 7 2 2 MP0282 YVB P - 3 7 2 C M P o 2 3 0 Er_5 E12A E].14 E 1 2 B 8 1 4 P56 - r_

E 1 5 A E 1 1 C M C o 5 2 1 H P O 2 C Ivn/s439 H P O 2 D DHO lB IW544 0 DHO98 rw5090 MP8 91A MP8 918 RELAY CABINET RELAY CABINET RELAY CABINET FrRE PROTECTTON EQUrP FrRE PROTECTION EQUrP RELAY CABINET RELAY CABINET ELEC METER & XDUCER CAB ALT GEN XFMR CABINET 13.8KV SWGR A DC CTRL 13.8KV SWGR A DC CTRL 48OVAC USS DC CTRL 48OVAC USS DC CTRL BREAKER CONT POWER ALT FUSE PAI\\TEL D3603 SUBSTATION F7 125V DC DIST PAI\\TEL HPI PUMP ]- DC LO PUMP 125V DC MCC 125V DC DIST PA}TEL t2sv Dc Mcc EMER LTG XFR SW ]-

EMER LTG XFR SW 3 RCP BACKUP OIL LIFT PMP RCP BACKUP OIL LIFT PMP MFPT 1 EMERG BRG OIL PMP

]-25V DC ITIVERTER MUP1 AUX LUBE OIL PTIMP TG EMER BRG OIL PUMP I25V DC DIST PANEL HPI PMP 2 DC LUBE OIL PMP 125V DC DIST PANEL EMER LTG XFR SW 2 EMER LTG XFR SW 4 RCP BACKUP OIL LIFT PMP RCP BACKUP OIL LIFT PMP MFPT 2 EMERG BRG OIL PMP 12 5V DC TIWERTER MUP2 AUX LUBE OIL PUMP T-G H2 EMERG SEAL OIL PMP 480VAC MCC 48OVAC MCC 48OVAC MCC 480V AC MCC 48OVAC MCC CS PUMP ]-

480VAC MCC AUTO BKR REMOVED H2 DILUTION SYS BLOWER 1 HPI 1 DISCH ISO VLV ECCS RM ]-05 ITVAC ISO VLV HPI 1 DISCH ISO VLV LPT LINE 1 VLV ECCS RM 105 ITVAC ISO VLV CTMT SUMP ISO VLV B CTMT H2 DLTN LINE

]. VLV ECCS SUMP PUMP 1A ECCS SUMP PUMP 18 YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES ACC YES YES ACC YES YES YES YES YES YES ACC YES YES ACC YES ACC YES YES YES YES YES ACC YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES N/A YES YES YES 6

6 6

6 5

6 6

6 6

6 6

6 6

1 6

5 3r_

1 1

3 1 1

6 6

6 5

5 3 1 1

3 0 3 1 1_

3 L 5

5 5

6 6

3 1 1

6 l_

1 1_

L 1

l_

1 1 r 8 6

1 5

l-1 6

5 6

5 6

SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD AI{ALYS TS APPEIIDIX C - 3 CIRCUIT COORDINATION EVALUATION R E V I S I O N : 2 7 D A T E : t O / t 6 SI]MMARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES E 1 1 A E 1 1 8 E 1 1 C E 1 1 D 1 P B E 1 1 1 7 A 1PBE1118A 1PBE11.2OA 1 P B E 1 1 2 1 A 1PBE1 L23A l_ PBE l_ l_ 2 4A IPBEr_r_29A 1PBE1]-32A 1PBE1]-57A 1PBE1]-7OA APBE 1]- O 9A APBE 1]- 2 5A 1PBE1]-O8A 1PBE1]-55A 1 P B E 1 1 5 8 A 1PBE1152A 1PBE11-53A lPBE]-165A 1PBE1]-59A 1_PBEI-l_71A r_ PBE l_ l_ 7 2A l_PBE11_73A IPBEl_l_74A 1_PBEt_t_75A 1 P B E 1 1 7 6 A 1 P B E 1 T 7 7 A 1PBE1]-78A 1PBE11-8OB 1PBEl-181A r_PBEt_t_83A 1_PBEr_

r_3 7A 1PBEl-138A 1PBE113 9A 1 P B E 1 1 4 O A 1-PBE11414.

1PBE1 J.42A 1PBE1]-44A 1PBE1]-5OA 1PBE1154A 1 P B E 1 1 5 6 A 1PBE1159A APBE115 74' APBE1168A APBE1186A APBE]-]-858 APBEl_1-86C 1PBE1126A lPBE]-127D 1.PBE1133A 1PBE1]-47F l_ PBE l_ l_ 6 1A 1PBE1]-9OA 1PBEl_l_948 lPBE]-195A 1_PBEI_t_97A r_ PBE l_ t_ 9 9A' APBE]- ]- 8 5A APBE]. ].8 8A APBE]-]-8 9A M P 8 9 3 A M P 8 9 3 B E1]-B DH27 33 MV2 00L I/ff2 003 IWRC]-O E1-l_D DHOTB rw5038 IVIVIVIU4 O

IVIVMU].2A MV2 O12A DH27 35 rwl_55 7A CFOlB I/ffCF02B IWCFO58 MCo551 MUO2A MUO2B ccl_4 0 7A MU5 9A MUs 98 ccr"411A MUs 9C MUs 9D XYE2A IVT\\/O24OA DH12 IVIVs070 MVs071_

rws072 MV5073 IvI\\/s074 sw]-3 6 5 IvI\\/s 2 5 1_A E1].E c 7 5 - 1 csr_53 0 MVo512 BSWX79D3 x3 9D1 N C 3 8 0 1 NC3 I 02 c 3 8 3 0 DHr_517 MU54 05 IVn/5067 DH54 0 9 cc2645 DBClPN MV642L Ivf\\/oI31 MREs327 IvI\\/t3 2I MPo38r_

WET711 wET712 ECCS SUMP PUMP 3A ECCS SUMP PUMP 38 480VAC MCC DH PUMP ]- BWST SUCT VLV CTMT ISO VALVE PENET 724 CTMT ISO VALVE PENET 744 PRZR SPRAY LINE ISO VLV AIITO BKR REMOVED BWST ISO VLV B CTMT H2 DILUT OUT ISO VLV DEMIN WTR STOP VLV MU FTLTER

]. IN VLV CTMT NORM SUMP ISO VLV PRZR SPRAY LINE ISO VLV CC IN ISO VLV 1 TO CRD CORE FLOOD TK 1 ISO VLV CF TAI{K

]. SAMPLE VALVE CF TAI\\TK 1-VENT VALVE CTMT RECIRCULATIN FAN 1-LETDOWN CLR OUT VLV LETDOWN CLR IN VLV CC OUT ISO VLV RCP 2-1. SEAL RET LINE VLV RCP 2-2 SEAL RET LINE VLV CC IN ISO VLV RCP 1-1 SEAL RET LINE VLV RCP I-2 SEAL RET LINE VLV TNCOMTNG XFER YE2 RC PRZR SMPL VLV 1-DH NORM SUCT LINE VLV CTMT VACM RELIEF VLV CTMT VACM RELIEF VLV CTMT VACM RELIEF VLV CTMT VACM RELTEF VLV CTMT VACM RELIEF VLV CAC ]- IN ISO VLV CTRM EMER VENT FN IN VLV 48OV AC MCC FEEDER CCW PMP RM VENT FA}I 1 CTMT SPRAY ISO VLV MN FW 1 ISO VLV CTMT LTGHTTNG DTSC SWTTCH CONTAINMENT LIGHT]NG XFMR H2 RECOMBINATTON STARTER H2 RECOMBINATION STATION CONT PAI{EL C3830 DH NORM SUCT LINE

1. VLV RC MU PUMP SUCT VLV CTMT H2 PURGE FN 1 IN VLV MUP DISCH X-CONN VLV CC RETURN HDR 1-VLV

]-25VDC BATTERY CHARGER MU CTMT ISO VLV DHR CLR ]- OUT XOVER CTRM VENT SYS VACM PMP 1.

CC CRD BOOST PMP SUCT VLV BA PUMP ]-

BA ADD TA}TK 1 HEATER 1

BA ADD TAI{K

]. HEATER 2

YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 6, 2 L l, 2 L 5, 2 L L, 2 L 6, 2 L 5, 2 L 6, 2 L L, 2 L L, 2 L L, 2 L l, 2 L l, 2 L I, 2 t L, 2 l L, 2 L I, 2 1 6, 2 L I, 2 L 5

6 l_

1 6

6 6

1 r 8 1_

6 6

5 6

6 6

6 6

1 6

1 6

1 6

6 5

6 6

6 1

l_

6 l_

t_

1 1

6 6

5 6

6 6

SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD AI{ALYS TS APPENDIX C-3 CIRCUIT COORDINATTON EVALUATION R E V I S I O N 2 2 7 D A T E : L O / t 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES E1]-D E 1 1 E E12A.

E 1 2 B E 1 2 C E]-2D APBE]-]-91A' APBEl-1-92A r_PBEr_145A 1PBE1145A 1PBE11.48A 1PBE115OA 1 P B E 1 1 8 7 A r_PBE120r_A lPBE]-202A 1 P B E 1 2 O 7 A 1PBE12 O 8E

]-PBE]-2094 1 P B E 1 2 1 3 A lPBE]-214A IPBEl-21_5A 1PBE12]-5A r_PBE12r_74 lPBE]-218A 1 P B E 1 2 1 9 A

]-PBE122OA r_ PBE 1-2 2 r_A 1-PBF,]-222A lPBE]-223A

]-PBE1225A IPBEL227A lPBE]-2324

]-PBE1233A 1 P B E 1 2 3 4 A 1_PBEl-2 3 54 1PBEl-2 3 7A 1-PBEl_2 3 8A 1PBE123 9A 1PBE124OA

]-PBE]-241A 1_PBEr-255A 1.PBE1256A 1 P B E 1 2 5 8 A 1 P B E 1 2 5 9 A IPBEl-251_A IPBEl_2 7l_A 1PBE12 73A 1 P B E 1 2 8 5 A APBE12 57A APBE1267A APBE]-258A APBEl2 5 9A APBE12 7 OA APBE12 8 9A 1 P B E 1 2 O 5 A l_PBEL210A 1_PBEI_2124 r_PBEr_2 744 lPBE]-275A 1 P B E 1 2 7 7 A 1 P B E 1 2 8 O A lPBE]-281A 1 P B E 1 2 8 2 A APBE12 O3A P - 3 7 1 8 P - 3 7 1 D IVn/O5458 A F 3 8 5 9 rw4905 A F 5 O 8 DH54 MS05r-r_

81.2C E F 1 2 D H V s 5 9 7 C 2 I - I WMBl WMB2 WMB3 s 3 3 - 1 c 7 1 - 1 sw13 82 MCo3 01 YRFl YRF3 c 7 3 - 1

wMBl_,

2, ccs 0 95 cc5 0 97 sw2927 DBCl-P EL2E DBClN M C 5 0 1 7 M C s 0 5 5 MC5024 rrv53 05A rrvs3 058 c25-L c25 -2 c 3 5 2 1 YE1 MPL47l_

MSl"06A E]-2F c 0 7 8 - 1 M P o 0 8 L MP159r" MP]-734.

wEl_091 x 3 0 2 1 MP1,473 c99 -2 E1-2D c99 - r_

MFot-51_

IW13 7 9 sw13 99 EF12C swz929 sw2 931 M C o 1 0 0 MUP 1. MAIN LO PUMP MUP ]" AUX GEAR LO PUMP CTMT ISO VLV PENT 73 AFWP 1 DISCH TO SG2 CTRM STA}TDBY COND 1 DMPR AFW TO SGl-ISO VLV LPT/HPI CROSS-TrE VLV CTRM STA}TDBY COND ]. FAN 4 I oVAC MCC 48oVAC MCC BATT RM 4298 ATM DMPR CTRM EVS FAN 1 Power Circuit (WMBI)

Power Circuit (WMB2 )

Power Circuit (WMB3 )

CTRM EMERG A/C UNIT 1

LV SWGR RM VENT FAI\\T 1 AFP 1 SUCT VLV FROM SW EMER VENT FAT{ 1 48 oVAC/r-2 5VDC RECTIFTER 480VAC / r-2 sVDC RECTTFTER AFP RM VENT FAN 1 Power Circuit (WNIef,2,3)

CC HDR 1 IN ISO VLV CC HDR ]- RETURN ISO VLV CTRM EVS COIilD UNIT IN VLV 125VDC BATTERY CIARGER 480VAC MCC

],25VDC BATTERY CHARGER EMER VENT DISCH FAAT DMPR CROSS-TIE DUCT WORK DMPR FUEL HAND AREA BYPASS VLV LV SWGR RM 429 DAMPER LV SWGR RM 429 DAMPER EDG RM ]. VENT FAI{ 1 EDG RM ]- VENT FAI{ 2 EMER DG ]- IMMERSION HTR FDR TO 12OV AC MCC EMER DG ]- SOAK PUMP AFPT 1 MS TN X-CONN 480VAC MCC BATT RM VENT FAl{

1 DO XFER PUMP ].

FUEL OIL BOOSTER PUMP 1 DO STRG TK AREA SUMP PMP DO PMP HSE ELEC UNIT HTR LTG XFMR DO PMP HOUSE EDG 1-AC LUBE OIL PTIMP SW PMP RM EXH FAN 2 48oVAC MCC SW PMP RM EXH FAI{ 1 SW PUMP STRNR ]-

SW PUMP STRNR DRAIN VALVE SW ISO VALVE TO CLNG WTR 48OVAC MCC SW TO INT STRU VLV SW TO CLG TOWER MU VLV TRAVELING SCREEN AREA \\n\\IT YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO 6, 2 A 7., 2 1 6, 2 A L, 2 t t, 2 1 1

l-6 t_

1 l_

1 5

5 5

1 1

l_

6 6, 2 6 5, 2 6 1

5, 2 5 l_

1 t_

1 l_

1 6

6 6

1 l_

1 1

6 1

5 I

1 1

1_

l_

5 5

5 6

1 1-l-

6 6

1 5

1-l_

1 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FIRE HAZARD AT\\TALYS TS APPENDIX C-3 CIRCUIT COORDINATION EVALUATION R E V I S I O N : 2 7 D A T E : t O / t 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRI PTION cooRD-INATED NOTES Et2D ET2E E 1 2 F Et4 E 1 5 E]-6A E 1 6 B EDG-1 EDG-2 E F 1 2 C F1 Fl_t_A APBE12 O4A APBE12 O5A 1_PBEI_286A

]-PBE]-2924 1_PBEr_293A 1 P B E l 2 9 4 H r_PBEr-295F r_PBEI_2 95A lPBE]-2 98A APBE]-2 9 9A r_PBEI-4 0 r_A 1PBE1O5A r_PBEr_609A 1_PBEr_6114 1_PBEr-615A 1PBEl-617A APBE15154.

1_PBEr_502A 1 P B E 1 5 1 3 A 1PAC1O1A 2 PAD1 O ]-A 3PBEF]-24A 3PBEF125A CPBEF123A 2 P B F 1 O 5 A 2 P B F 1 O 7 A 2PBF11OA 2PBF111A 2PBF1]-4A 2PBF]-].5A 2 PBF]- ]- 8A BPBFl ]- 3A 2PBF1r_0r_B 2PBFr_r_02A 2 P B F 1 1 O 3 A 2PBF1]-O6A 2 P B F I - 1 0 8 E 2 P B F 1 1 O 9 A 2PBF1Lt_0A 2PBF1]-114' 2 P B F 1 1 1 2 A 2 P B F 1 1 1 8 A 2PBFl_r-19A 2PBFr_r_20A 2PBF1]-214.

2PBFI_l-23A 2 PBF]- ]-24A 2 P B F 1 1 2 5 A 2 P B F l 1 2 5 A 2PBFLT27A 2PBFI-128A MF15401_

IW4690 HP32 c 3 1 - 4 c 3 1 - 5 MS51r-MU54r_9 P 1 9 7 - 1 Pr_95

- 1 MCo111 c 1 - 1 cr_-3 E]-5B x 5 3 0 1 XY]-

XY3 BSW22OX RCr_1 x 3 8 0 2 c1 D1 M F o 1 5 3 swr_3 81 MPo05 0 F15 F].28 FL4 P 5 6 - 2 F12A F1]-A F15A F13 XYF2A MRE5328 MV4 907 cc5 0 95 yIrJ6422 MCO622 rw5055 MS6 03 c 7 5 - 2 AF599 cc5 0 98 CFO].A IWCFO2A IVI\\/CFO5A MSl_07 tw2735 RC23 9A RC23 98 Ivffo 2 4 0B BACKUP SW PUMP STRAINER SW BACKUP PMP DRN VALVE HPI PMP1 RECIRC VLV ECCS RM 105 CLR FAI{ 4 ECCS RM 105 CLR FAI{ 5 IWOS ]-1 PWR CKT MU DISCH VLV HPI PMP1 AC LO PMP EDG FUEL OIL TRANSFER PUM EMER DG ATR COMPSR 1 CAC FAIV ]- LRGST LOAD USED CACS FAN 3 LRGST LOAD INCMG C]RC BKR E15B 480-L20V r_.sKVA XFMR FEEDER CVTXY]- (AE- 0272)

FEEDER CVTXY3 8883 / 2 SECURTTY PORV BLOCK VLV 4 8 OV-12 OV 1. sKVA XFMR c1 CoNTROL POWER (elr)

D1 CONTROL POWER SW PMP STRNR 3 SW PMP STRNR 3 DRN VLV

.JOCKEY FIRE PUMP 480VAC MCC 480V AC MCC 48oVAC MCC CS PUMP 2 480VAC MCC 480VAC MCC 4 8 OVAC MCC 480V AC MCC FDR TO 24OV AC MCC CTRM VENT SYS VACM PMP 2 CTRM STANDBY COND UNIT CC HDR 2 IN ISO VLV MU CTMT ISO VLV H2 DILUTION SYS BLWR 2 CTMT H2 PURGE LINE 2 VLV SG 2 DRAIN LINE ISO VLV CCW PMP RM VENT FAI{ 2 AFW TO SG2 ISO VLV CC HDR 2 RETURN ISO VLV CF TK2 ISO VALVE CF TAI\\TK 2 SAMPLE VALVE CF TANK 2 VENT VALVE AFPT 2 MS IN ISO VLV PRZR SPRAY LINE ISO VLV PZR VAPOR SPACE SMPL LINE PZR LIQUID SAMPLE VALVE RC PRZR SAI4PLE VLV 2 YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO t, 2 L 6, 2 L 5, 2 L 6, 2 L L, 2 t I, 2 I t, 2 I 5

t_

1 t, 2 L 5, 2 1 L, 2 0 L, 2 0 6, 2 L 6, 2 L 6

5 5

1 5

1_

l" 1

1 l-1 l_

1 l_

1 6

1 6

6 t

L 6

6 6

6 1

1 l_

6 6

1_

6 1

1 5

SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit l-FIRE HAZARD A}IALYSTS APPENDIX C.3 CIRCUIT COORDINATION EVALUATION R E V I S f O N : 2 7 D A T E z l o / t 6

SUMMARY

POWER SUPPLY crRcurT COMPONENT DESCRIPTION cooRD-INATED NOTES F11A F]_ l_B F 1 1 C F 1 1 D F 1 1 E 2PBF11-3 OA 2PBFI-131A 2PBF]-132A 2 P B F 1 1 3 3 A 2PBF11-3 7A 2PBF1]-4OA 2PBF1].43A 2 PBFI_ l_44A 2PBF1]-45A 2 P B F 1 1 4 9 A 2 P B F 1 1 8 O A 2PBF1r_8r-A 2 P B F 1 1 8 2 A 2 P B F 1 1 8 3 A 2 P B F 1 1 8 4 A 2PBF]-189A BPBF]- 1]- 3A BPBF1114A BPBF1115A BPBF11]-5A 2PBFLl_38A 2 PBF1 j.47 A 2 P B F 1 1 4 8 A 2 P B F 1 1 5 8 A 2 P B F 1 1 5 9 A 2 P B F 1 1 6 O A 2 P B F 1 1 7 5 A 2 P B F 1 1 8 5 A 2 P B F 1 1 8 8 A 2CBF114r_B 2 P B F 1 1 2 9 A 2 P B F 1 1 3 4 A 2 P B F 1 1 3 5 A 2PBF11-3 9A 2PBF11_51_A 2 PBF]- L7 7 A BPBF]- j.67 A BPBF1168A 2PBFI-11_7A 2 PBF1 ]-42A 2 P B F 1 1 4 5 A 2PBFI_r_534' 2PBF1154A' 2 P B F 1 1 5 7 A 2P8F1151-A 2PBF1]-54A 2 P B F 1 1 7 8 A 2PBF]-179A 2PBFI-1-85A 2PBF1]-87A BPBF]-]-O7A BPBF]-]-59A BPBF117 ]-A BPBF]- ]- 7 2A 2PBF]-192A 2 P B F 1 1 9 3 A 2PBF11-94A 2PBF11-95A DHl_l_

s 3 3 - 2 sw2928 IWL3 3I F 1 1 B M V 2 0 0 0 F11_C Ivn/2002 F1]-D c z t - 2 yrv5075 IVIV5 0 76 Ivn/s077 r w s 0 7 8 IVIV5079 F1]-E M C o 5 5 2 x4 9D1 BSWX79D1 x 5 7 D 1 I\\4V2 012B csl-5 3l" DHO 7A cc14 0 78 c c 1 4 1 1 8 IVn/O5248 Ivn/155 78

}.It/5262 M S 1 0 7 A H P O 2 B DHr_518 D H 2 7 3 4 DHO lA HPO2A rws037 swL3 83 P - 3 7 2 8 P - 3 7 2 D IWo601_

DHO 9A WF6 O MP8 92A.

MP8 92B c3r--3 ccz6 49 rw5058 Ivn/544r_

rw5442 rwo830 DBC2 PN lvIW{U128 MPo 3 82 WET721 WETT 22 c 3 1 - 1 C3L-2 HP31 DH53 DH NORM SUCT LINE VLV CTRM EMERG A/C UNrT 2

CTRM EVS COND UNTT IN VLV CC CRD BOOST PMP SUCT VLV FEEDER TO MCC F1]-B CTMT ISO VALVE PENET 71.A AUTO BKR REMOVED CTMT ISO VALVE PENET 73A FEEDER TO MCC F1]-D CTRM EVS FAI\\T 2 CTMT VACUUM RELIEF VALVE CTMT VACTIUM RELIEF VALVE CTMT VACUUM RELIEF VALVE CTMT VACUIM RELIEF VALVE CONTROL VACTIUM RELTEF VLV FEEDER TO MCC F1]-E CTMT RECIRC FAI\\T 2 CTMT LTG XFMR CTMT LTG DISC SWCH CTRM & AUX BLDG LTG XFMR CTMT NORM SIMP ISO VLV CS PUMP OUT VLV BWST OUT VLV CC OUT ISO VLV CC IN ISO VLV CTMT TSO VALVE PENET 72 CC IN ISO VALVE 2 TO CRD CTRM EMER \\ATT FN 2 IN VLV SG ]- TO AFPT 2 HP INJECT VLV DH NORM SUCTION VLV DH BWST SUCTION VLV LP IN.JECT VLV HP IN.]ECT VLV CTMT H2 DILUT OUT ISO VLV AFP 2 SUCTION VLV MUP MN OIL PUMP MUP AUX LUBE OIL PUMP MN FW 2 ISOLATION VALVE CTMT EMERG SUMP VLV H2 DILUT FLT HTR ECCS SUMP PUMP 2A ECCS SIMP PUMP 28 ECCS RM 1]-3 CLR FAIV 3 CC RETURN HDR 2 VLV CTMT H2 PURGE FN 2 IN VLV ECCS RM 115 HVAC TSO VLV ECCS RM 115 ITVAC ISO VLV DHR CLR 2 OUT XOVER FDR TO BAT CHGR DBC2PN MU FLT 2 IN VLV BA PTMP 2 BA ADD TANK 2 HEATER

]-

BA ADD TA}TK 2 HEATER 2

ECCS RM 11-5 CLR FAI\\T 1 ECCS RM 115 CLR FAN 2 HPI PMP 2 RECIRC VLV LPrlHPr CROSS-TrE VLV YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES YES YES N/A YES YES YES YES NO NO NO NO NO NO YES YES YES YES NO NO NO NO 6, 2 1 L, 2 L L, 2 L L, 2 L a, 2 L 6, 2 L 6, 2 7.

6, 2 L t, 2 !

5 5, 1 1 5

6 6

6 L, 2 !

6, 2 L 6, 2 1 -

6, 2 L 6, 2 t t, 2 l 6

6 6

5 6, 2 1 5, 2 L t, 2 t L, 2 t 1

1 1

6 1

5 1 r 8 5

1-1 6

6 6

6 6

1 6

6 6

6 l_

1 i-1_

1 6

1 1

1 SYMBOLS; ACC = ACCEPTABLE 1 0

Davis Besse Unit 1

FIRE HAZARD AI\\TALYS IS APPENDIX C-3 CIRCUIT COORDINATION EVALUATION R E V f S I O N 2 2 7 D A T E : L Q / 1 6 SI'MIvIARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES F 1 1 E F 1 2 A F1.28 Ft2C FLzD F 1 5 F 1 6 A BPBF1195A 2PBF12 O1A 2PBFL2O2A 2 P B F 1 2 O 3 A 2PBFL?O4A 2 P B F 1 2 O 5 A 2PBF].2 O8F 2PBF12 O 9A 2PBFI_2 t_0A 2PBF]_21_2A 2PBFI-2l-3A' 2PBFI-2l_4A' 2PBFI_2 t_5A 2PBF12l_7A 2PBFI-218A 2PBFL22OA 2PBFL22]-A zPBFT223A 2PBFL224A 2PBFI-225A 2PBFL226A 2PBFT227A 2P8F1,228A 2PBFL229A 2PBF].2 3 OA 2PBFI-2314' 2PBFL237A 2 P B F 1 2 3 8 A 2PBF]-23 94' 2PBF].2 8 5,J 2PBF]-255A 2 P B F 1 2 5 5 A 2 P B F 1 2 5 8 A 2PBFl-259A 2 P B F 1 2 5 O A 2 P B F 1 2 5 1 A zPBFL262A 2 P B F 1 2 7 O A BPBF].257A BPBFl-263A B P B F 1 2 5 7 A B P B F 1 2 6 8 A B P B F 1 2 6 9 A BPBFl-289A 2PBFL27 4A 2PBF12 75A 2PBFT277A 2 P B F 1 2 7 8 A 2 P B F 1 2 8 O A 2 P B F 1 2 8 1 A 2PBFl.z82A 2PBFl2l_l_A 2 P B F 1 2 3 6 A 2 P B F 1 O 5 A 2PBF161.5F 2 P B F l 5 1 7 D F1]-F A F 3 8 7 1 F12C MCo3 02 c 1 3 3 c 7 3 - 2 MU6408 DBC2P HV5s98 DBC2N WLB].1 WLB]-2 WLB]- 3 wLBl_]_

,2,3 M C s 0 1 8 YRF2 YRF4 swl3 5 7 swr_3 5I M C 5 0 5 7 MVs 02 5 cc14 0 9 ccl_410 M S 0 6 1 2 P l. 9 5 - 2 Pl 1 MUol_A MUO]-B Irvs314A R C 2 0 0 c 2 5 - 3 c 2 5 - 4 c3622 c 7 8 - 2 IvIVRCO2 MP1,47 2 AF3 8 72 YF]-

M P o 0 8 2 MCo1-12 MP1 s 92 MP1738 wEl.o92 MP1,474 MFo152 swr.3I0 sw13 95 F].2D EF12C sw2 93 0 sw2932 c 9 9 - 3 c 9 9 - 4 c]--3 MU542 0 MU3 971 480VAC MCC F11F AFWP 2 DISCH TO SG1 AUTO BKR REMOVED EMER VENT FA\\T 2 LV SWGR RM VENT FA}T 2 AFP RM VENT FAIV 2 MU CROSS CONNECT ISO VLV BATTERY CHARGER DBC2P BATT RM 428A ATM DMPR BATTERY CHARGER DBC2N Power Circuit (WLBI-I-)

Power Circuit (WLB12)

Power Circuit (WLB13)

PWR CKT PZR HTR EMER \\n\\TT FA\\T DISCH DMPR 2 4 I oVAC/ 12 5VDC RECTTFTER 4 I oVAC/ r-2 sVDC RECTTFTER CAC 2 IN ISO VLV CAC 3 IN ISO VLV CROSS TIE DUCT WORK DMPR FUEL HAND AREA BYPASS VLV LTDWN CLR 1. CC WTR TN VLV LTDWN CLR 2 CC WTR IN VLV CTRM STA}TDBY COND 2 FAN EDG FUEL OIL TRANSFER PUM HPI PMP 2 AC LO PMP LETDOWN CLR 1-IN VLV LETDOWN CLR 2 IN VLV LV SWGR RM 428 DAT4PER PZR SMPL CTMT \\n{T HDR VLV EDG RM 2 VENT FAN 3 EDG RM 2 VENT FAN 4 EMER DG 2 IMMERSTON HTR BATT RM VENT FAIil 2 PRZR 1 SPRAY LINE VLV EMER DG 2 SOAK PIMP AFWP 2 DISCH TO SG2 FEEDER TO 12OV AC MCC DO XFER PUMP 2 EMER DG AIR COMPSR 2 FUEL OIL BOOSTER PUMP 2 DO STRG TK AREA SUMP PMP DO PMP HSE ELEC TINIT HTR EDG 2 AC LUBE OIL PUMP SW PUMP STRNR 2 SWP 2 STRN DRN VLV TPCW HX IN HEADER ISO VLV FDR BKR TO MCC FL?D 480VAC MCC SW TO INT FOREBAY VLV SW TO COLLECT BASIN VLV SW PMP RM EXH FAI\\T 3 SW PMP RM EXH FAI{ 4 CACS FAI{ 3 LRGST LOAD MU32 BYPASS VLV RC MU PUMP SUCT VLV YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO I, 2 I 1 -, 2 L l_

5 t_

1 r 8 6

1 1

t_

t-1 t_

5 5

5 5, 2 5 6

6 6

1 1

5 6

1 1_

6 1

t_

1 L

1 t_

l-1 6

1 6

5 1

1 6

6 6

6 5

6 6

6 1

1 6

1 l_

1 1_

1 1 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1-FIRE HAZARD AI{ALYS IS APPENDIX C-3 CIRCUIT COORDTNATION EVALUATION REVIS ION z 2'7 D A T E : t A / L 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION COORD-TNATED NOTES F]-6A F 7 F 7 L R C 3 7 0 2 RC3 7 04 R C 3 7 0 6 RC46 04 R C 4 5 0 5 RC46 06 R C 4 8 0 1 Y1 2PBF162 OA 2PBFL622A 2P8F1624A 2 P B F 1 5 2 5 A BPBFTO3A BPBFTO5A BPBFTOTA B P B F 7 1 O 5 A BPBF7114A BPBF7117A BPBF7118A (zCY214A)

( rcvr r-7A)

( rcvrlTB)

( 1CD1P2 0B)

(2CD2P20C) 2 CVRC2,J

( 1PD1P12A) 1CY1O3A 1CY104A 1CY1O4B 1CY]_06A 1CY]_074 1CY]-08A 1CY]-088

]-CYl_10A 1CY].1_08 l CYl_ l_ 2A lCYl_128 1 C Y 1 1 2 C 1CY113A 1CY114A 1CY1158 1CY115A 1CY117A 1CY1178 lCYr-r_7C 1CY]_17D r-cYr-18A lCYr_r-88 r_cYl_l_8c l_cY1_

l_ 8D r_cY1r_

9A

]-CYl_20A r_cY12 0B 1CY12 0C 1CY12 OD 1CY121A 1-CYr22A

]-cYL22B 1PY1O5A ACYI-VMA F16B x 5 3 0 2 xv2 xY4 M C 1 3 9 0 Fl_3 F 7 1 c 3 4 1 0 P242 -t Y34 0 r_

5 4 0 5 8 VARIOUS VARIOUS VARIOUS VARIOUS VARIOUS RC2A VARIOUS c57 628 c 5 7 0 8 c57 t4 c57 62E c57 52D c 3 6 3 0 c 3 5 2 I D1_

RC4 5 04 c 5 7 L 6 c 5 7 5 3 8 c 5 7 0 8 c F P 0 3 Q R C 3 7 0 1 c 5 7 5 1 A c 5 7 l. 7 R C 3 7 0 4 R C 3 7 0 5 cDE-11_B-1 c D E - 1 1 8 - 2 PDYsOOOB P D Y S 0 0 0 C TY544 3 c 5 7 8 4 A c 3 8 0 1 R C 3 5 0 7 R C 3 5 0 1 R C 3 6 0 5 YL].

c57 62A cFPPl0Q cFPPlTQ c 3 6 1 5 F.r5277 4 8 oVAC MCC 4 8 0 - 1 2 0 V r -. s K V A X F M R FEEDER CVTXY2 (AE- 0272)

FEEDER CVTXY4 (EE- 0272) rNST AIR COMP 480V AC MCC 48OV AC MCC EIAC CLOSED COOLING LOOP MDFP AUX LUBE OIL PUMP DIST PANEL Y3401-ROOM AIR COND ROOM 3348 RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RECEPTACLE RC2A PORV (2PD2N17A)

RECEPTACLE PROCESS & RAD MON CABINET CTRM EMERGENCY HVAC CONTR CTRM EMERGENCY ITVAC CONTR RPS-1 CABINET NI-NI2 SFAS CH. ]. LOGIC PA}ilEL CONT POWER TO AUX SD PAI\\TE CONT POWER ESS METER HPI D1 CONTROL POWER NON SSD RELAYS CTRM IND LTS HPI FLOW POST ACC MON MAIN CTRL BOARD BWST TNST HEAT TRACTNG RELAY CABINET RC37O]-

SFRCS CH. 1 LOGIC PAI{EL CONT POWER SV IND LIGHTS NON SSD RELAYS RELAY CABINET NON SSD CONT PWR CONT POWER DH12 INTLK P D Y s O O O B P D Y s 0 0 0 C T Y 5 4 4 3 ARTS CABINET C5784A CTMT HYDROGEN SYS PAI{EL RELAY CABINET RC35O7 RELAY CAB INET RC 3 5 O ]-

RELAY CABINET RC3605 YL1 SFRCS CH. 3 RELAYS F /P PAITEL CFPP10Q F /P PAI{EL EDG1-L PAI{EL (NORM)

REMOTE VOLTMETER AT C571.5 YES YES YES YES YES YES YES YES YES NO YES ACC ACC ACC YES YES ACC YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 6, 2 7 6

L, 2 7 6

1 6, 2 2 6

7, 1 6 7, 1 6 7, 1 6 7

7 L, 2 9 l_

2, 2 6 1, 2 5 L, 2 6 1, 9, 2 5 L, 9, 2 6 L, 3, 2 6 1, 2 6 2, 2 6 2, 2 6 I, 2 6 7, 2 6 r, 2 6 6, 2 6 5, 2 5 l, 9, 2 6 5, 2 6 7, 2 6 7, 2 6 7, 2 6 5, 2 5 2, 2 6 2, 2 6 2, 2 5 2, 2 6 6, 2 6 2, 2 6 2, 2 6 2, 2 6 2, 2 5 1, 9 6, 2 6 6, 2 5 I, 2 6 6, 2 6 6

6 1

1 SYIVIBOLS; ACC = ACCEPTABLE

Davis Besse Unit l-FIRE HAZARD ANALYSIS APPEIIDIX C - 3 CIRCUIT COORDTNATION EVALUATION REVISfON z2'7 D A T E : a O / L 6

SUMMARY

POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION COORD-INATED NOTES Y1A Y2 Y2A 1CY103AA 1CY1 04AA lCYr- 0 7AA 1CY1O8AA l_cY10 8AB lCYl_ 0 9AA

].CY115AA 1_CYr_AL 0 5A lPYl_l_1_AA 1PY]- 12AA 1PY]-]-3AA 1PY]- 14AA 1PY1].7AA 1-PY118AA 1PY12 1AA ACY]-A\\IMA 2CY2 03A 2 C v 2 0 4 A 2 C y 2 0 4 8 2 C Y 2 0 5 A 2 C Y 2 0 7 A 2CY2 08A 2 C Y 2 0 8 8 2CY2LOA 2CY2L]-A 2CY2L]-B 2 C y 2 L L C 2CY2L2A 2 C Y 2 L 2 B 2Cy2].4A 2CY2L48 2 C Y 2 L 4 C 2CY2I58 2CY2l.6A 2 C Y 2 L 6 8 2 C Y 2 l 5 C 2CY2L7A 2Cv2L7B 2 C Y 2 L 7 C 2 C y 2 L 7 D 2CY2l_8A 2Cy2L9A 2CY2l.9B 2 C Y 2 L 9 C 2 C v 2 t 9 D 2 C v 2 2 0 A 2 C Y 2 2 L B 2CY222A 2 C Y 2 2 2 8 2PY2 O5A BCY2VMA 2CY2 O3AA zCY2 O4AA 2Cy2 0 7AA 2CY2 0 8AA 2CY2 0 8AB 2Cy2 0 9AA 2Cy215AA 2CY2A205A 2Py21_1AA L1T4 5 18 c 3 6 4 5 c57 99 NY5874B c 4 8 0 8 c57 99 c 5 7 6 3 8 c 5 7 5 3 A c57 62G c 5 5 0 3 R C 4 8 0 1 RE4 5 97AA RE4598AA Rrc4598AA-2 RE4598AB 81627 7 c 5 7 5 5 8 c 5 7 1 5 c67 09 c 5 7 5 5 E c 5 7 5 5 D c 3 6 3 0 c3629 D2 c 5 7 1 6 c 5 7 0 s c 5 7 0 9 C 5 7 1 7 c 5 7 5 5 A RC3 7 02 R C 4 6 0 5 cDF - 11A-r-c57 924 R C 3 7 0 5 R C 3 7 0 3 WF5 O PDYSO14B PDY5014C FTY5444 c5 7 848 c 3 8 0 1 R C 3 6 0 8 RC3 5 02 R C 3 5 0 6 YL2 cFP04Q c57 92 cFPPllQ CFPPr_8Q c 3 5 1 5 F.16282 LIT46L7 c4625 c 5 7 9 8 NY58758 c4602 c 5 7 9 8 c 5 7 5 5 A c 5 7 5 5 G c 5 7 5 5 H CTMT NOR SUMP LVL CONT POWER TO AIJX FW CONT POST ACCIDENT MONITORING NEUTRON FLUX MONITORING C

NEIITRON FLIIX MON CAB POST ACCTDENT MONITORTNG POST ACC MON POST ACCIDENT MONITIORING SAFETY GRADE INST CAB VENT STACK RAD MON RELAY CABINET RC48O1 CTMT NORM RNG RAD MON STA VENT EFF HI RAD MON STA EFF RAD MON LOC DISP STA VENT EFF HT RAD MON REMOTE VOLTMETER AT C571-5 PROCESS & RAD MON CABINET CTRM EMERGENCY TTVAC CONTR CTRM EMERGENCY HVAC CONTR RPS-2 CABINET NI SFAS CH.2 LOGIC PANEL CONT POWER TO AIIX SD PAI{E CONT POWER ESS METER HPI BREAKER CONT POWER ALT CTRM IND LTS HPI FLOW CONT POWER IND LTS CTRM IND LIGHTS, DIXSONS CONT POWER SV IND LIGHTS IND LIGHTS RELAY CABINET NON SSD RELAYS CONTROL DISCONNECT TRANSF SFRCS CH.2 LOGIC PA}TEL RELAY CABINET NON SSD RELAYS H2 DILUT FLT HTR FPDY5O]-48 FPDYsO]-4C FTY5444 ARTS CABINET C57848 CTMT HYDROGEN SYS PAIVEL RELAY CABINET RC3608 RELAY CABTNET RC3502 RELAY CABINET RC36O5 ESSENTIAL LTG ROOM 323 BWST INSTR HEAT TRACING SFRCS CH 4 RELAYS F /P PAI{EL CFPP11Q F/P PAI{EL CFPP18Q EDG1-2 PAI{EL LIGHTS REMOTE VOLTMETER AT C57]-5 CTMT SUMP LEVEL CONT PWR AUX FW CONT PNL POST ACCIDENT MONITORING NEI.]:TRON FLUX MON NEUTRON FLUX MON POST ACCIDENT MONITORING IND LIGHTS POST ACCIDENT MONITIORING SAFETY GRADE INSTR CAB YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 2, 2 6 1, 2 6 1, 2 5 1, 2 6 5, 2 5 t, 2 6 2, 2 6 I, 9, 2 5 2, 2 5 2, 2 5 2, 2 6 2, 2 6 2, 2 5 2, 2 6 2, 2 5 2, 2 6 2, 2 6 7., 2, 2 5 t, 2, 2 6 t, 9, 2 5 1, 9, 2 6 L, 3, 2 5 L, 2 6 5, 2 6 I, 2 6 7, 2 6 I, 2 6 5, 2 5 7, 2 6 5, 2 6 5, 2 6 5, 2 6 1, 9, 2 6 5, 2 6 5, 2 5 5, 2 6 2, 2 5 2, 2 6 2, 2 6 2, 2 6 2, 2 6 2, 2 5 2, 2 6 2, 2 6 2, 2 6 6, 2 6 L, 9, 2 5 5, 2 5 2, 2 6 r, 2 6 6, 2 6 5, 2 6 l, L G t, 2 6 t, 2 6 L, 2 6 5, 2 6 6, 2 6 L, 9, 2 6 6, 2 6 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1

FTRE HAZARD AI{ALYS IS APPEIIDIX C - 3 CIRCUIT COORDINATION EVALUATION R E V I S I O N 2 2 7 D A T E : t O / t 6 STIMMARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES v2A Y3 Y4 YAU 2PY21-2AA 2PY2]-3AA 2PY2 1 7AA 2PY2 ].8AA 2PY2 1 9AA 2PY22 1AA 3CY3 07A 3CY3 O8A 3CY3 O9A 3 C Y 3 1 0 A 3CY3r_2A 3CY31_3A.

3 PY3 O5A ACY3V[4A 2 CY41_ 9A 4CY4O7A 4CY4O8A 4CY4O9A 4 CY4 l_ 0A 4CY411A 4CY4L2A 4CY4l_4A 4PY4O5A BCY4VMA ACYAU]. OA ACYAU]-3A ACYAU]-4B ACYAU2 OA ACYAU2 2A ACYAU2 4A ACYAU2 7B ACYAU2 8A ACYAU2 9A ACYAU2 98 ACYAU2 9C ACYAU2 9E ACYAU2 9F ACYAU3 OA ACYAU3 2A ACYAU3 3A ACYAU34A ACYAU3 5A ACYAU3 5B ACYAU3 5C ACYAU3 5A ACYAU3 58 ACYAU3 6C ACYAU3 7A ACYAU3 8A ACYAU3 9A ACYAU4 OA ACYAU4 OB ACYAU4]-A ACYAU4 18 ACYAU42A ACYAU4 3A ACYAU44A ACYAU4 54' ACYAU4 5A c56 0 3A RC4 5 05 RE4598BA Rrc4 5 98BA-2 RE4597BA RE4598BB c 5 7 5 3 D c 5 7 5 3 F RC3 5 03 cFP0sQ c 5 7 8 4 C c 5 7 6 0 A c 3 6 1 s EI52 81_

c 5 7 0 5 c 5 7 5 5 D c 5 7 5 5 F c57 64A RC3 5 04 cFP05Q c 5 7 8 4 D c 5 7 5 5 G c 3 5 1 5 81627 8 J T 5 7 0 7 c 5 7 5 4 K

.IT5708 c 4 5 0 3 c t 1 0 2 c 4 1 0 1 c57 57D c57 6 4D R 3 0 0 4 R 3 0 0 2 R 3 0 0 3 NAIT6859 P.2022 c5 75 5E c 5 7 1 5 c 6 7 L O - L 2 c 3 0 0 2 RC3 717 RC3 7r_5 R C L 7 6 0 RC3 005 RC3 003 RC3 001 RC43 11 c 3 5 1 0 c57 22 RC24 04 R2204 R C 2 8 2 5 R18 0 r"

,JT4722 c 5 7 1 8 c57 2t ZETRON c 5 7 6 5 F VENT STACK RAD MON DC CONT PWR TO PORV STA VENT RAD MON ('JT5353)

STA EFF RAD MON (LOC DSP)

CTMT NORM RNG RAD MON STA VENT RAD MON ACC RNG SFAS CH.3 LOGIC PAI{EL RPS-3 CABINET RELAY CABINET RC3503 BWST HEAT TRACING ARTS CABINET CTRM CABINET EDG]- PAI{EL (NORM)

REMOTE VOLTMETER AT C571-5 CONT POWER IND LTS SFAS CH 4 LOGIC PAI{EL RPS-4 CABINET SEISMIC RECORDING SYS RELAY CABINET RC3504 BWST HEAT TRACE CABINET ARTS CABINET C5784D CTRM CABINET EDG1-2 PAI{EL LIGHTS REMOTE VOLTMETER AT C5715 JUNCTION BOX, C57674 EPF MULTIPLEXER CABINET

.]UNCTION BOX CRD BKR B SHUNT TRIP CKT PA}TEL H2 DETECTOR CABINET MFPT 1- ]- CTRL ENVIRONMENTAL MONITOR SYS RACK RACK RACK RACK RACK PROCESS & RADIATION MON DC & INSTR AIR BKR IND MOTOROLA TRANSCEIVERS DIESEL FIRE PUMP CTRL RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABTNET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET MAIN CTRL PANEL RELAY CABINET LOCAL A\\TNTINCTATOR RELAY CABTNET RACK FIRE PROTECTION (C540]-)

MAIN CTRL BOARD FEEDWATER PANEL RECEPTACLE PROCESS & RADIATION MON YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 6, 2 6 6, 2 6 6, 2 6 6, 2 6 6, 2 6 6, 2 6 1, 2 5 6, 2 6 5, 2 6 6, 2 5 6, 2 6 2, 2 6 5, 2 6 6, 2 6 5, 9, 2 5 L, 2 6 6, 2 6 6, 2 6 6, 2 6 6, 2 6 6, 2 6 2, 2 6 5, 2 5 5, 2 6 6

5 6

6 6

5 6

6 5

6 5

6 6

6 6

6 6

6 5

6 6

6 6

6 5

6 6

6 6

6 6

6 6

6 6

L 4 SYMBOLS ;

ACC = ACCEPTABLE

Davis Besse Unit l-FIRE HAZARD ANALYSIS APPENDIX C-3 CIRCUIT COORDINATION EVALUATION R E V I S f O N 2 2 7 D A T E t l O / L 6 SUM}4ARY POWER SUPPLY CIRCUIT COMPONENT DESCRIPTION cooRD-INATED NOTES YAU YBU ACYAU468 ACYAU4 7A ACYAU4 8A ACYAU4 8B ACYAU4 9A ACYAU4 98 ACYAUs OA ACYAUs OB ACYAUs2A ACYAUs 3A APYAUO2A APYAUO4A APYAUO5A APYAUO 7A APYAUO 9A APYAU1]-A APYAU]-2A APYAU]-5A APYAU1SA APYAU1 TA APYAU]-84.

APYAU2 5A BCYBUI-9.A' BCYBU2 OA BCYBU2 1A BCYBU2 3A BCYBU2 3B BCYBU24A.

BCYBU2 5A BCYBU2 7A BCYBU2 94' BCYBU3 OA BCYBU3 14' BCYBU3 18 BCYBU3 3A BCYBU3 5A BCYBU3 6A BCYBU3 7A BCYBU3 78 BCYBU3 7C BCYBU3 7D BCYBU3 8A BCYBU3 9A BCYBU4 ]-A BCYBU42A BCYBU42B BCYBU4 2 C BCYBU4 3A BCYBU4 3B BCYBU44A BCYBU4 54' BCYBU4 7A BCYBU4 8A BCYBU4 8B BCYBU4 9A BCYBUs OA BCYBUs2A BCYBUs2B BCYBUs3A BCYBUs 3B BPYBUO2]\\

c 5 7 8 1 c57 L9 VARIOUS YATS57O1 c 5 7 0 8 c 5 7 0 5 c57 7 2C c5772F c 5 7 5 1 C c5720 Y450r-c5 75 5A Y 3 5 0 1 YATS45 01 -

c 5 7 5 8 A u 5 0 0 c 5 7 s 8 C c 5 7 5 8 8 VARIOUS ^

c57 7 2B c57 7 2A c5 76 0D c t 7 0 2 c 4 3 0 1 c 3 3 0 3 c 5 7 1 5 c 5 7 1 8 c 4 8 0 l X c 5 7 5 4 B, C c4606 c57 54Kl c 5 3 0 1 c5720 c 5 7 1 9 -

c5757C c 5 7 5 7 D c 3 4 0 4 RC44 1 0 RC440L RC23 04 FLI3 7O 9 c 5 7 5 4 H c5723 RCI_ 7 5 t_

RC3 006 RC3 0 04 RC3 0 02 RC3 718 RC3 7r-5 c 3 5 1 1 c57 22 RCz826 c 5 7 6 4 8 c 5 7 8 5 C57 2T c576r_B c 5 7 5 4 F JT57t2 c 5 7 0 8 c 5 7 0 6 c 5 7 5 s C PROCESS & RADIATION MON MAIN CTRL BOARD RECEPTACLE CoMPUTER EQUTP. ATS MAIN CTRL BOARD MAIN CONTROL BOARD PLA}TT PROCESS COMPUTER PLA}TT PROCESS COMPUTER LIOP 2 FANS MAIN CTRL BOARD FUSE PAI\\TEL Y4501 PROCESS & RADIATION MON FUSE PAI{EL Y3501 COMP. MULTIPLEXOR ATS BUFFER CABINET MAIN COMMUNTCATION BOX MISC ELECTRONIC CTRL CAB DIAGNOSTTC CAB]NET RECPT. COMP. RM PRTNTERS PLAI{T PROC. COMPUTER PLANT PROC. COMP., C577OA CONT POWER NNIY PANEL GEN VOLT REG CABINET GEN COOL SYS CABINET DC & INSTR AIR BKR IND MAIN CTRL BOARD CRD PIP O? LIGHTS VIBRATION MON 2Y89OOA, B CRD BKR A SHTINT TRIP CKT RECPT. PLANT COMP. ROOM CROSS WATT HR METER CAB MAIN CTRL BOARD PLAI'TT PROC. COMP., C57 678, TURBINE INSTR CABINET MFPT 1-1 CTRL STATION AIR COMPRESSOR 2 RELAY CABINET RELAY CABINET RELAY CABINET FLOW TNDTCATOR LOAD FREQ CTRL DIGITAL FREQ IND RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET RELAY CABINET C3511 MAIN CTRL PANEL RELAY CABINET VIBRATION ACOUSTIC MON CABINET FEEDWATER PANEL ICS Y BUS FEED (ALT)

STATION AI{NUNCIATOR COMM DATA TRANSMTSSION MAIN CTRL BOARD MAIN CONTROL BOARD PROCESS & RADIATION MON YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES 6

6 6

6 6

6 6

6 6

5 5

5 6

6 6

6 5

6 6

6 6

l_

6 6

6 5

6 6

5 6

6 6

6 5

6 6

6 6

6 6

6 5

6 5

6 6

6 5

5 5

6 6

6 6

6 6

6 6

6 6

6 1 5 SYMBOLS; ACC = ACCEPTABLE

Davis Besse Unit 1-FIRE I{AZARD AI{ALYSIS APPENDTX C.3 CIRCUIT COORDINATION EVALUATION REVISION 227 D A T E : t 0 / 1 6 SI]MMARY POWER SUPPLY CIRCUIT COMPONENT DESCRTPTION cooRD-INATED NOTES YBU YE1 YE2 YF1 YF2 BPYBUO3A BPYBUO 5A BPYBUO 8A BPYBUO 9A BPYBU]- OA BPYBU1lA BPYBU12A BPYBU14A' BPYBU1 7A BPYBU1EA BPYBUs 1A 1PYE1O1A 1 PYEl O2A'

]-PYE]- O 3A

]-PYE1O4A 1_CYE2l-1A 1PYE2O1A 1PYE2 O2A 1.PYE2 O3A

]-PYE2 O4A 1PYE2 O5A 1PYE2 O6A 1PYE2 O 7A 1PYE2 O 9A 1PYE2 1OA 1PYE2 ]-24.

2PYF]-O1A 2PYF1O2A 2PYF1O3A 2PYF1O4A.

2CYF21l_A 2PYF2O]-A 2PYF2O2A 2 P Y F 2 O 3 A 2PYF2O4A 2PYF2O5A.

2 P Y F 2 O 5 A 2PYF2O7A 2PYF2O9A 2PYF21OA 2PYF2L2A v4502 Y 3 5 0 2 c 5 7 5 7 8 c 5 7 5 8 F YATS460L u 5 0 0 c57 7 2G-c 5 7 ' 7 2 D,

c 5 7 5 1 c 5 7 5 1 c 5 7 5 9 C I{Vs32 9A HV53298 HVs329C r{vs3 05 c 5 7 6 1 4 IVn/s0r_1A Ivn/5 O 118 Ivn/s0l_]_C IVn/s O 11D IVn/s O 11E M C s 0 0 0 A M C 5 O O O B IIVs443A IryS4438 Irvs443C Irvs3 35A IIV5 3 3 58 rrvs3 3 6C HVs3r_4 c57 92A IvMs0l-0A IVIV5OlOB IVIV5 0L0c IvIVs 010D IV1V5OlOE MC5O14A MCsO14B IIVs444A If\\l54448 Ifv5444C FUSE PANEL Y45O2 PAI{EL Y3502 EHC SYSTEM CABINET MTSC ELECTRONTC CTRL CAB COMPUTER RAIP MAIN COMMUNICATTON BOX PLANT PROC. COMP., C577OB PLANT PROCESS COMPUTER COMPUTER LIOP 2

COMPUTER LIOP 2

INST POWER NNI-X BUS (ALT)

EDG RM ]- DAMPER EDG RM ]- DAMPER EDG RM 1 DAMPER LV SWGR RM FAI{ 1 DAI4PER SFRCS CH. 1 LOGIC PA}ilEL CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL RET ISO VLV EMER VNT SYS MOD DMPR ].

EMER \\ATT SYS MOD DMPR 2 CCWP RM FAN ]- BYPASS DMPR CCWP RM FAI{ 1 IN DMPR CCWP RM OA LOWER 1

EDG RM 2 DAMPER EDG RM 2 DAMPER EDG RM 2 DAMPER LV SWGR RM FAI{ 2 DAIVIPER SFRCS CH. 2 LOGTC PAIVEL CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV CTMT AIR SMPL ISO VLV EMER VNT SYS MOD DMPR 3 EMER \\ATT SYS MOD DMPR 4 CCWP RM FAN 2 BYPASS DMPR CCWP RM FA}I 2 IN DMPR CCWP RM OA LOIJVER 2 YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO NO NO NO NO YES YES YES YES NO NO NO NO NO NO NO NO NO NO NO 6

6 5

6 6

6 5

5 5

5 t_

t, 2 4 L, 2 4 L, 2 4 1, 2 4 L, 9, 2 4 6, 2 4 6, 2 4 5, 2 4 6, 2 4 6, 2 4 6, 2 4 6, 2 4 6, 2 4 6, 2 4 6, 2 4 I, 2 4 L, 2 4 L, 2 4 L, 2 4 L, 9, 2 4 6, 2 4 6, 2 4 5, 2 4 6, 2 4 6, 2 4 5, 2 4 5, 2 4 6, 2 4 6, 2 4 5, 2 4 1-5 SYMBOLS; ACC = ACCEPTABLE

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-17 FHAR Rev 26 10/2014

1.

Component is required for Safe Shutdown. The values represent the fuse size or frame size/long-time delay pickup setting of the trip device. See notes on Drawing E-4 for typical applications of power sensor (type PS1-A) overcurrent trip devices on bus incoming and tie breakers. Type SST overcurrent trip devises with internal ground fault protection are provided on certain feeder breakers.

2.

Within a family of protective devices, the most limiting are the highest 116 rated load (downstream) device and the lowest rated supply (upstream) device. Less limiting devices are bounded by these devices, and therefore the less limiting devices are normally not evaluated directly.

3.

Process rack, relay and control cabinet loads are individually fused and coordinated with the incoming breaker/fuse. Where the cabinet provides power for solenoids, individual coordinated fuses serve each branch circuit. Fuse sized and types were taken from the design and vendor drawings and the fuse list. Where a specific type was not listed or verified by walkdown, the most conservative type of those stocked by Davis-Besse for the application was assumed.

4.

Procedures require stripping loads prior to backfeed, therefore, associated circuits will be verified to be tripped/disconnected prior to energizing the backfeed path.

5.

See Fire Hazard Analysis Report (FHAR Appendix A Note 5; this component acts as a power supply and the connected load cables are routed to evaluate spurious actuation due to hot shorts, however, coordination of the individual loads is not required since power to this component is not needed for Safe Shutdown.

6.

Evaluated for associated circuit coordination.

7.

This power supply is Daisy-chained with a Safe Shutdown component. Therefore, coordination is required to ensure operability of the Safe Shutdown component. For example, a typical circuit feeds three panels off a 10-amp fuse. Only one is considered Safe Shutdown, but all three cables are associated with the safe Shutdown component and routed in FHAR Appendix B. The largest fuse on the other two non-Safe Shutdown relay cabinets is evaluated to ensure that a short there blows the fuse at the non-Safe Shutdown panel instead of the 10-amp fuse.

8.

GENERAL NOTE: Due to implementation of FCR 85-0063, the 480V level has been adequately coordinated for Safe Shutdown; see the 480V Breaker Coordination to Meet Common Power Source Criteria of Appendix R (Calculation C-EE-013.10-001). Cables associated with breakers that will have the automatic trip function removed are listed in Appendix C-3 are protected by the upstream breakers.

A fault in the feeder to the Jockey Fire Pump (MP0060) due to a fire in Area BH will trip BE1280 considering the cable length to the fault; this provides adequate coordination.

Yes indicates adequate coordination for Appendix R. No indicates that the Safe Shutdown Analysis assumes loss of the power source. ACC means that a lack of coordination is acceptable and is considered in the Safe Shutdown Analysis. An entry of

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-18 FHAR Rev 26 10/2014 NA in the Load column indicates that a single fuse is provided for the entire scheme listed.

9.

Unbuffered AC does not leave this cabinet; therefore, coordination is not required beyond the feeder breaker.

10.

Number not used.

11.

Containment Emergency Sump Valve is depowered for Safe Shutdown.

12.

Circuits 1CY104A & B (2CY204A & B) provide 120V AC control power to the Control Room Emergency Ventilation System Panels C6708 & C6714 (C6715 & C6709) from panels Y1 (Y2).

A review of E-801, Rev. 12, E-60B, Sht 37, Rev. 3, E-60B, Sht 34, Rev. 3, and Vendor Drawings 7749-M-410-550-7, 7749-M-551-7 and 7749-M-410-281-10 shows that all circuits powered from Y1 and Y2 are Safe Shutdown cables except for 1LV4906A(2LV4907) which are buffered low level instrument cables. A short circuit or induced voltage on the low level instrument cables will not affect Safe Shutdown.

The power serves redundant equipment in Fire Area HH and control circuits routed in common areas DD and FF; otherwise, redundant Trains of CREVS are not routed in the same fire area. A lack of coordination within a Train due to a fire in the above specific areas could result in a loss of CREVS, but this is already assumed in the analysis. The fuses at Y1, Y2 are adequately coordinated with the incoming fuse.

Therefore, there are no associated circuits of concern and the lack of coordination does not affect Safe Shutdown.

13.

Y1(Y2) and alternate feeds Y3(Y4) supply control power to the respective emergency diesel generator cabinets as follows:

C3615 E-559 Sht 1, Rev 10 C3616 E-560 Sht 1, Rev 9 E-559 Sht 2, Rev 9 E-560 Sht 2, Rev 11 C3617 E-559 Sht 3, Rev 13 C3618 E-560 Sht 3, Rev 13 C3621 E-559 Sht 4, Rev 13 C3622 E-560 Sht 4, Rev 13 Y1 & Y4 are used as the control power sources due to coordination concerns.

To evaluate the circuits associated with the diesels, the conservative approach was taken to review all cables to and from the cabinets as shown on the above wiring diagrams.

a.

Safe Shutdown cables have been evaluated separately.

b.

Cables that interconnect the above cabinets are all local to the respective diesel (same fire area) and, therefore, could not become an associated circuit of concern (e.g. Scheme GD107 and 111).

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-19 FHAR Rev 26 10/2014

c.

The Day Tank level instrument is separately powered from C5758C (M-324-41-18 Sht. 2) and is not an associated circuit of concern. Channel B is similar.

d.

Circuits with Channel A or B designators are not powered from Y1 or Y2

[annunciator circuits, computer inputs to Drawing E-724, isolated relay contacts (e.g. E-64B Sht. 1B, Rev. 8)].

e.

Cables ACV1131B and G (EL4B SW 11B, Rev. E) are powered from Y1 and the cable is routed to the intake structure however the 2 amp fuse adequately coordinates the whole scheme with the upstream fuse of the same type and does not jeopardize safe shutdown circuits (E50B Sht. 16, Rev. 5).

f.

Diesel sequence schemes SXSEQ 1-4 are powered from a different ACC supply at relay cabinets (E64B Sht. 18, Rev. 2), SFSEQ 1-4 are powered from SFAS (E64B Sht. 17, Rev. 5) and are not considered Safe Shutdown for Appendix R.

g.

Diesel warning light Schemes BWLDG 1 and 2 are powered from Relay Cabinets (Ch. A, B) (E-64B Sht. 19, Rev. 0), not Y1/Y2.

h.

SFAS Remote Position Switch Monitoring SFC11 (E760) is not powered from Y1/Y2.

Each circuit feeds the cabinets for a single diesel generator. Circuits stay in the fire are associated with the respective diesel generator (e.g. 6A feed to relays) except for separately fused (2A) indicating lights which are adequately coordinated. By the above process of elimination, there are no associated circuits of concern and a lack of coordination does not affect Safe Shutdown.

14.

The circuit feeds the Remote Shutdown Panel (C3630). Individual power supplies buffer (isolate) those low level instrument cables that leave the area. The fuses are only subject to fire-induced fault current if the fire occurs in Fire Area R. Safe Shutdown is possible without these circuits. See Drawing 7749-M-544-6-10. (For transfer of DC circuits see E-45B Sht. 11B, Rev. 15). Therefore, these are not associated circuits of concern.

15.

The circuit feeds the SG high point vent valves (AC), position indication and alarm relays. Power is not required for Safe Shutdown. A blown fuse will not prevent Safe Shutdown (See E-1009, Rev. 4, E-1010, Rev. 4, E-1050 Shts. 1 and 2, Rev. 1, E-1051 Shts. 1 and 2, Rev. 1, and E-52B Sht. 71B, Rev. 1). Therefore, these are not considered circuits of concern.

16.

CDF-11A-1 provides status indicating lights for CF01B and RC3704 provides control power to CCWS surge Tank Level Relay LR3757. Power to these components is not needed for Safe Shutdown although the power cables are individually evaluated in each area analysis. RC3706 is a spare circuit. CDE-11B-2 provides control power for normally de-energized DH12 Interlock (E52B/24D, Rev. 8). RC3702 provides power for

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-20 FHAR Rev 26 10/2014 the SG level set, and diesel sequence schemes, neither of which is required for Safe Shutdown.

CDF-11A-1 and CDF-11A-2 share a common power source, however, power is not required for Safe Shutdown. The Circuit 1CY117B for RC3706 is a spare and therefore, is acceptable. CDF-11A-1 provides indication for CF01A which is not needed for Safe Shutdown and CDF-11A-2 is similarly fused and no longer provides indication for the M.S. Isolation Valves FV101D and E. Therefore, these are not considered associated circuits of concern.

17.

Power to SFRCS Cabinets C5762A and C5792 is not required for Safe Shutdown. Any failure mode of logic or relays is acceptable for the Appendix R Safe Shutdown Evaluation. See also Note 18 for indicating lights. Therefore, these are not associated circuits of concern. With a Loss Of Offsite Power (LOOP), Buses YE2 and YF2 will be without power for approximately 10 seconds until the EDG is loaded and during this time SFRCS logic channels 3 and 4 will be tripped. See System Description SD-010 Rev. 0, Section 2.7 for a discussion of logic and solenoid power sources and distribution. Either the incoming circuit breaker or the breaker feeding the loads provides acceptable coordination.

18.

Power to the Main Control Room and local indicating lights is individually fused and is not required for Safe Shutdown. Physical positions and component operation can be verified if necessary (E-576 Sht. 6, Rev. 16, E-568 Sht. 7, Rev. 18). The Dixson Flow Meters on the main control console use this common power source; the largest 2-Amp A2Y, A6Y and the faster ATM load fuses are adequately coordinated with the incoming A25X10 fuse. Therefore, there are no associated circuits of concern.

19.

This circuit feeds a single system (NI/RPS) in the Control Room. Within C5755E, a 5-amp fuse feeds RY indicators including the source range channels NI-NI1 and 2 (M-563-317, M-536-37-5). In addition, this power source feeds the power supplies for the source range and power range detectors and the RPS inputs: (7749-M-536-12-12)

Reactor Building Pressure Reactor Trip Reactor Pressure Linear Bridge The NI Source Range Cables (E-730/Sh. 3, Rev. 4, E-731/Sh. 3, Rev. 4) are routed into Containment and are evaluated for Safe Shutdown capability on an area by area basis.

Other cables that leave the Control Room are assumed to be low level instrument cables, buffered by their power supplies, independent of the NI needed for Safe Shutdown. Based on system and area analysis these circuits are acceptable from an Appendix R standpoint.

20.

A review of the 4kV breaker settings has been performed for the Safe Shutdown electric plant configuration. See the electrical calculation for the individual feeder. The

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-21 FHAR Rev 26 10/2014 accredited Train cables have been shown to be free of fire damage and are, therefore, not a coordination concern.

21.

Electrical coordination may be lost due to a fire-induced fault in this cable. No credit is taken for the availability of the MCC if there is inadequate separation or protection.

22.

A review of coordination of the loads on MCC F71 has shown that one non-Safe Shutdown Load, Y3401 (50-amps) may not coordinate with the incoming 600-amp molded-case circuit breaker. This MCC is needed only for fire in Area EE (Aux Bldg.

Fan Alley) and Y3401 serves loads in the Turbine Building, therefore, these are not associated circuits of concern.

23.

Cable 2CV&432E serves a single sample valve in the same fire area as the Power Supply RC4607 and either 3-amp fuse provides adequate circuit protection.

24.

YE2(YF2) molded-case circuit breakers do not coordinate with the incoming circuit breaker. The only Safe Shutdown loads off these MCCs are SFRCS. Loss of this power to the failsafe system is conservatively assumed. The coordination of YE1(YF1) partly relies on length of cables 1PYE104A and 2PYF104A attenuating the fault current.

25.

The delay band is adjusted to the maximum end the breakers are coordinated.

26.

Calculations have shown that Y1, Y1A, Y2, Y2A, Y3 and Y4 are coordinated with only the CVT source fed from E16A and F16A. The lack of coordination with the normal sources (YRF1, YRF2, YRF3 and 4), is not a Safe Shutdown concern since the automatic transfer to the accredited source will occur when the current transformer senses approximately 120% overcurrent in the feeder to the panels. The current limiting fuses on these panels are effective in reducing the peak let-through current to levels which do not trip breakers in the accredited path.

27.

Coordination for F7 is given in Calculation C-EE-005.01-21 and for the bustie to F7 in Calculation C-EE-004.01-034, ground fault may result in tripping of F71; however, the motor-driven feed pump is only accredited for Safe Shutdown in Area EE and the cable is not routed in Area EE.

28.

A number of components and modules in the NNI cabinets and a number of field mounted components external to the NNI cabinets require 120 V AC rather than

+/-24 V DC for their operation. All of the components and modules which require 120 V AC power for their operation receive their power from the AC fuse panels in both the NNI X and NNI Y cabinets. The largest load fuse size is a Bus GLD 5 per field walkdown which is adequately coordinated with the incoming A2Y15 distribution fuse within the NNI X and Y cabinets.

29.

This circuit serves a single circuit scheme and a failure in any cable is evaluated to result in the loss of only the one component (RC2A as shown in DCN-E52B/13-535).

Therefore, the coordination is acceptable.

30.

Coordination for the disconnect device for the Turbine Generator Emergency Bearing Oil Pump (D118) is given in Calculation C-EE-002.01-011. The disconnect device is a

Davis-Besse Unit 1 Fire Hazard Analysis Report NOTES FOR APPENDIX C-3 C3-22 FHAR Rev 26 10/2014 magnetic breaker only Westinghouse type HKA breaker rated at 225/70A (225A frame 70A rated breaker). The thermal trip is not installed and the magnetic trip (350A to 700A) is set at 455A in accordance with Relay Setting Manual sheet 1-30-201. With the breaker set at 455A the breaker is coordinated with the upstream 500-amp fuse.

31.

As discussed in Attachment 10 of Calculation C-EE-002.01-011 (Ref. 2.6.E), the loads associated with the power supplies have been evaluated to be lost due to the fire (e.g.

D1P and D1N are both in the same fire area as their power supply DC MCC 1 and thus no credit is taken for these for a fire in this fire area.