u.s. epr final safety analysis report · 2013-09-24 · u.s. epr final safety analysis report tier...
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U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-2—SIS Actuation
PZRPRESS NR
[1]
HOTLEG1PRESS
WR
HOTLEG1TEMP WR
HOTLEG1LOOP
LEVEL
Calculation of Psat
+ -
Delta Psat
(Figure 7.2-31) Permissive
P12 validated
& &
OR
PZRPRESS NR
[2]
HOTLEG2PRESS
WR
HOTLEG2TEMP WR
HOTLEG2LOOPLEVEL
Division 1 Division 2
min minmin
Same as Division 1
Same as Division 1
2 out of 4
(4)
2 out of 4
(4)
(4) (4) (4)
2 out of 4
(4)
(Figure 7.2-34)Permissive
P15 validated
&
Min 3p Min 1p Min 1p
RS
SIS Actuation
2 out of 4 2 out of 4
ManualSIS Train 1
Reset
A R
(4) (4)
(4) (4)
HOTLEG3PRESS
WR
HOTLEG3TEMP WR
HOTLEG3LOOPLEVEL
Division 3
Same as Division 1
Same as Division 1
(4) (4) (4)(4) (4)
HOTLEG4PRESS
WR
HOTLEG4TEMP WR
HOTLEG4LOOPLEVEL
Division 4
Same as Division 1
Same as Division 1
(4) (4) (4)(4) (4)
PZRPRESS NR
[3]
PZRPRESS NR
[4]
Manual SIS-Loop Level
Bypass
A R
ManualSIS
Actuation
A R
SIS Actuation SIS Actuation SIS Actuation
EPR3290 T2
Tier 2 Revision 5 Page 7.3-64
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-3—EFWS Actuation
2 out of 42 out of 4
min
Min2p
min
Min2p
min
Min2p
min
Min2p
OR
(Figure 7.2-32)Permissive
P13 validated
&&
RT - EFWS actuation � Low
SG Level
EFWS1 actuation
Division 1
OR
& &&&
(Figure 7.2-32)Permissive
P13 validated
OR
& & &
OR
& &
Division 2 Division 3 Division 4
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4) (4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4) (4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
EFWS2 actuation
EFWS3 actuation
EFWS4 actuation
EFWS1 actuation
EFWS2 actuation
EFWS3 actuation
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.2-32)Permissive
P13 validated
EFWS4 actuation
(Figure 7.3-2)SIS actuation
(Figure 7.3-23)LOOP
&
OR
&
OR OR OR
&
&
OR OR OR
&
OR
(Figure 7.3-2)SIS actuation
(Figure 7.3-2)SIS actuation
(Figure 7.3-2)SIS actuation
(Figure 7.3-23)LOOP
(Figure 7.3-23)LOOP
(Figure 7.3-23)LOOP
RT - EFWS actuation � Low
SG Level
RT - EFWS actuation � Low
SG Level
RT - EFWS actuation � Low
SG Level
REV 003EPR3295 T2
SG1 LEVEL WR [1]
SG1 PRESS
[1]
Pressure Correction
SG2 LEVEL WR [1]
SG2 PRESS
[1]
Pressure Correction
SG3 LEVEL WR [1]
SG3PRESS
[1]
Pressure Correction
SG4 LEVEL WR [1]
SG4 PRESS
[1]
Pressure Correction
Same as Division 1 Same as Division 1 Same as Division 1
SG1 LEVEL WR [2]
SG1 PRESS
[2]
SG2 LEVEL WR [2]
SG2 PRESS
[2]
SG3 LEVEL WR [2]
SG3PRESS
[2]
SG4 LEVEL WR [2]
SG4 PRESS
[2]
SG1 LEVEL WR [3]
SG1 PRESS
[3]
SG2 LEVEL WR [3]
SG2 PRESS
[3]
SG3 LEVEL WR [3]
SG3PRESS
[3]
SG4 LEVEL WR [3]
SG4 PRESS
[3]
SG1 LEVEL WR [4]
SG1 PRESS
[4]
SG2 LEVEL WR [4]
SG2 PRESS
[4]
SG3 LEVEL WR [4]
SG3PRESS
[4]
SG4 LEVEL WR [4]
SG4 PRESS
[4]
Tier 2 Revision 5 Page 7.3-65
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-4—EFWS SG Level Control and Pump Flow Protection
PI
OpenClose
EFW Pump 1 Discharge Flow
EFWS1 FCV
OpenClose
&
OR
&
min
-
Setpoint
PI
OpenClose
Setpoint
&&
EFWS1 LCV
OpenClose
-
SG 1 LEVEL WR
[1]
Division 1Same for Divisions 2, 3, and 4 controlling Trains 2, 3, and 4, respectively
EFWS SG Level Control EFWS Pump Flow Protection
RS
(Figure 7.3-6)Enable SASLevel Control
(Figure 7.3-6)Disable SASLevel Control
REV 004EPR3300 T2
Tier 2 Revision 5 Page 7.3-66
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-5—EFWS Isolation
Division 1 Division 2 Division 3 Division 4
&
2 out of 4
(4)
(4)
maxMax1p
maxMax1p
maxMax1p
maxMax1p
(4) (4)
EFWS1 isolation
(Figure 7.2-32)Permissive
P13 validated
EFWS3 isolation
EFWS2 isolation
EFWS4 isolation
Same as Division 1 Same as Division 1 Same as Division 1
REV 003EPR3305 T2
SG1 LEVEL WR [1]
SG1 PRESS
[1]
Pressure Correction
SG2 LEVEL WR [1]
SG2 PRESS
[1]
Pressure Correction
SG3 LEVEL WR [1]
SG3PRESS
[1]
Pressure Correction
SG4 LEVEL WR [1]
SG4 PRESS
[1]
Pressure Correction
Same as Division 1
SG1 LEVEL WR [2]
SG1 PRESS
[2]
SG2 LEVEL WR [2]
SG2 PRESS
[2]
SG3 LEVEL WR [2]
SG3PRESS
[2]
SG4 LEVEL WR [2]
SG4 PRESS
[2]
Same as Division 1
SG1 LEVEL WR [3]
SG1 PRESS
[3]
SG2 LEVEL WR [3]
SG2 PRESS
[3]
SG3 LEVEL WR [3]
SG3PRESS
[3]
SG4 LEVEL WR [3]
SG4 PRESS
[3]
Same as Division 1
SG1 LEVEL WR [4]
SG1 PRESS
[4]
SG2 LEVEL WR [4]
SG2 PRESS
[4]
SG3 LEVEL WR [4]
SG3PRESS
[4]
SG4 LEVEL WR [4]
SG4 PRESS
[4]
Tier 2 Revision 5 Page 7.3-67
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-6—EFWS Actuators (Div. 1&2)
Division 1
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.3-5)EFWS1 isolation
(Figure 7.3-25)SG1
isolation
Start EFW1 pumpOpen EFW1 C-VOpen EFW1 I-V
Close EFW1 I-VClose EFW1 C-V
OROR
Close SG1 cold blwdn I-VClose SG1 hot blwdn I-V
(Figure 7.3-3)EFW1
actuation
RS RS
OR
OR
&
OR &
OR
Division 2
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.3-5)EFWS2 isolation
(Figure 7.3-25)SG2
isolation
Start EFW2 pumpOpen EFW2 C-VOpen EFW2 I-V
Close EFW2 I-VClose EFW2 C-V
OROR
Close SG2 cold blwdn I-VClose SG2 hot blwdn I-V
(Figure 7.3-3)EFW2
actuation
RS RS
OR
OR
&
OR &
RS
OR
(Figure 7.3-3)EFW3
actuation
RS RS
OR
&
OR
OR
Close SG3 common blwdn I-V
(Figure 7.3-3)EFW4
actuation
RS RS
OR
&
OR
OR
Close SG4 common blwdn I-V
(Figure 7.3-25)SG3
isolation
(Figure 7.3-25)SG4
isolationS R(Figure 7.3-14)
Main Steam Isolation Div. 1
(Figure 7.3-14)Main Steam
Isolation Div. 2
(Figure 7.3-14)Main Steam
Isolation Div. 2
ManualEFWS 1Actuation
A R
ManualEFWS 1Actuation
A R
OR OR OR
OR
ManualEFWS 1Isolation
A R
ManualEFWS 1Isolation
A R
ManualEFWS 4Actuation
A R
ManualEFWS 3Actuation
A R
ManualEFWS 2Isolation
A R
ManualEFWS 2 Isolation
A R
ManualEFWS 2Actuation
A R
ManualEFWS 2Actuation
A R
REV 003EPR3310 T2
Enable SAS Level Control
Disable SAS Level Control
Enable SAS Level Control
Disable SAS Level Control
Tier 2 Revision 5 Page 7.3-68
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-7—EFWS Actuators (Div. 3&4)
Division 4
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.3-5)EFWS4 isolation
(Figure 7.3-25)SG4
isolation
Start EFW4 pumpOpen EFW4 C-VOpen EFW4 I-V
Close EFW4 I-VClose EFW4 C-V
OROR
Close SG4 cold blwdn I-VClose SG4 hot blwdn I-V
(Figure 7.3-3)EFW4
actuation
RS RS
OR
OR
&
OR &
RS
OR
Division 3
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.3-5)EFWS3 isolation
(Figure 7.3-25)SG3
isolation
Start EFW3 pumpOpen EFW3 C-VOpen EFW3 I-V
Close EFW3 I-VClose EFW3 C-V
OROR
Close SG3 cold blwdn I-VClose SG3 hot blwdn I-V
(Figure 7.3-3)EFW3
actuation
RS RS
OR
OR
&
OR &
RS
OR
(Figure 7.3-3)EFW1
actuation
RS RS
OR
&
OR
(Figure 7.3-25)SG1
isolation
OR
Close SG1 common blwdn I-V
(Figure 7.3-3)EFW2
actuation
RS RS
OR
&
OR
(Figure 7.3-25)SG2
isolation
OR
Close SG2 common blwdn I-V
(Figure 7.3-15)Main Steam
Isolation Div. 3
(Figure 7.3-15)Main Steam
Isolation Div. 3
(Figure 7.3-15)Main Steam
Isolation Div. 4
OR OR
ManualEFWS 4Actuation
A R
ManualEFWS 4Actuation
A R
OR
ManualEFWS 4 Isolation
A R
ManualEFWS 4Isolation
A R
OR
ManualEFWS 2Actuation
A R
ManualEFWS 1Actuation
A R
ManualEFWS 3Isolation
A R
ManualEFWS 3 Isolation
A R
ManualEFWS 3Actuation
A R
ManualEFWS 3Actuation
A R
REV 003EPR3315 T2
Enable SAS Level Control
Disable SAS Level Control
Enable SAS Level Control
Disable SAS Level Control
Tier 2 Revision 5 Page 7.3-69
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-8—Partial Cooldown Actuation
Division 1 Division 2
Same as Division 1
Same as Division 1
(4)
2 out of 4
(4)
Division 3
Same as Division 1
Same as Division 1
(4)
Division 4
Same as Division 1
Same as Division 1
(4)
(Figure 7.2-33)Permissive P14
validated
(Figure 7.3-2)SIS Actuation
&
&
RS
Partial Cooldown Actuation
RS
Partial Cooldown Finished
MIN
OR
Partial Cooldown
Sliding Setpoint
(Figure 7.2-24)Div. 1
RT Initiated
ManualPartial
CooldownInterface
A R
ManualPartial
CooldownInterface
A R
REV 003EPR3320 T2
Tier 2 Revision 5 Page 7.3-70
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-9—MSRT Setpoint Formation
Division 2
Same as Division 1
Division 3
Same as Division 1
Division 4
Same as Division 1
NormLow SP
NormSP
(Figure 7.2-33) P14 Vaildated
#
#
Partial Cooldown Sliding Setpoint
(Figure 7.3-8) Partial Cooldown
Actuation
(Figure 7.3-8) Partial
Cooldown Finished
#
Max1p SP MSRT 1
(Nominal Setpoint)
#
SG1 Hi SP
(Figure 7.3-25) SG 1 Isolation
#
SG 3 Hi SP
(Figure 7.3-25) SG 3 Isolation
#
SG 4 Hi SP
(Figure 7.3-25) SG 4 Isolation
#
SG2 Hi SP(Figure 7.3-25)
SG 2 IsolationMax1p SP MSRT 3
Max1p SP MSRT 4
Max1p SP MSRT 2
Partial Cooldown Finished
SP
Division 1
REV 003EPR3325 T2
Tier 2 Revision 5 Page 7.3-71
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-10—MSRIV Opening (Div. 1&2)
max
SG 1 PRESS
[1]
(Figure 7.3-9)
Max 1pMSRT 1
SG 2 PRESS
[1]
SG 3 PRESS
[1]
SG 4 PRESS
[1]
OR
R S
MSRIV 1 Actuation
2 out of 4
(4)
1 out of 2
(2)
max
(Figure 7.3-9)
Max 1pMSRT 2
OR
R S
2 out of 4
(4)
1 out of 2
(2)
max
(Figure 7.3-9)
Max 1pMSRT 3
OR
R S
2 out of 4
(4)
1 out of 2
(2)
max
(Figure 7.3-9)
Max 1pMSRT 4
OR
R S
2 out of 4
(4)
1 out of 2
(2)
Open MSRIV 1 PIL V1 Open MSRIV 2 PIL V1 Open MSRIV 3 PIL V1 Open MSRIV 4 PIL V1
Division 1 Division 2
SG 1 PRESS
[2]
SG 2 PRESS
[2]
SG 3 PRESS
[2]
SG 4 PRESS
[2]
Same as Division 1
ManualMSRT 1Actuate
R A
ManualMSRT 2Actuate
R A
ManualMSRT 3Actuate
R A
ManualMSRT 4Actuate
R A
(2) (4) (2) (4) (2) (4) (2) (4)
Same as Division 1
Open MSRIV 1 PIL V2 Open MSRIV 2 PIL V2 Open MSRIV 3 PIL V2 Open MSRIV 4 PIL V2
MSRIV 2 Actuation
ManualMSRT 4Actuation
R A
ManualMSRT 2Actuation
R A
ManualMSRT 3
Actuattion
R A
ManualMSRT 1Actuation
R A
EPR3330 T2
Tier 2 Revision 5 Page 7.3-72
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-11—MSRIV Opening (Div. 3&4)
(2) (2) (2)
Same as Division 1
(2) (4) (2) (4) (2) (4) (2) (4)
Same as Division 1
ManualMSRT 4Actuation
R A
ManualMSRT 2Actuation
R A
Open MSRIV 4 PIL V4Open MSRIV 3 PIL V4Open MSRIV 2 PIL V4Open MSRIV 1 PIL V4
Division 4
MSRIV 4 Actuation
Open MSRIV 4 PIL V3Open MSRIV 3 PIL V3Open MSRIV 2 PIL V3Open MSRIV 1 PIL V3
Division 3
MSRIV 3 Actuation
Same as Division 1
SG 4 PRESS
[4]
SG 3 PRESS
[4]
SG 2 PRESS
[4]
SG 1 PRESS
[4]
SG 4 PRESS
[3]
SG 3 PRESS
[3]
SG 2 PRESS
[3]
SG 1 PRESS
[3]
(4)(2)(4)(4)(4)
ManualMSRT 3Actuation
R A
ManualMSRT 1Actuation
R A
Same as Division 1
EPR3335 T2
Tier 2 Revision 5 Page 7.3-73
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-12—MSRCV Control
(Figure 7.2-8)Nuclear Power
Calculation
#
PI
CLOSEOPEN
SG 1 Press MSRCV 1 Position
#
PI
CLOSEOPEN
#
(Figure 7.3-9)Max1p SP
MSRT1
MSRIV 1 CLSD[1]
Pressure Control Standby Position Control
Division 1Typical for Divisions 2,3,& 4
MSRCV 1
CLOSEOPEN
Div 2Div 3Div 4
2 out of 4
( Figure 7.3-10)MSRIV 1 Actuation
&
MSRIV 1 CLSD [4]MSRIV 1 CLSD [3]MSRIV 1 CLSD [2]
FG1
ManualSetpoint
REV 004EPR3340 T2
Tier 2 Revision 5 Page 7.3-74
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-13—MSRT Isolation
min Min3p
(Figure 7.2-31)Permissive
P12 Validated
Division 1 Division 2 Division 3 Division 4
Same as Division 1
Same as Division 1
(4) (4) (4) (4)
Same as Division 1
Same as Division 1
Same as Division 1
Same as Division 1
SG1Pressure
[1]
SG1Pressure
[2]
SG1Pressure
[3]
SG1Pressure
[4]
SG2Pressure
[2]
SG2Pressure
[3]
SG2Pressure
[4]
SG3Pressure
[2]
SG3Pressure
[3]
SG3Pressure
[4]
SG4Pressure
[2]
SG4Pressure
[3]
SG4Pressure
[4]
&
2 out of 4
(4)
OR
MSRT 1 Isolation Actuation
min Min3p
SG2Pressure
[1]
&
2 out of 4
(4)
OR
min Min3p
SG3Pressure
[1]
&
2 out of 4
(4)
OR
min Min3p
SG4Pressure
[1]
&
2 out of 4
(4)
OR
MSRT 2 Isolation Actuation
MSRT 3 Isolation Actuation
MSRT 4 Isolation Actuation
Close MSRIV 1 PIL V2
Close MSRIV 4 PIL V2
Close MSRIV 2 PIL V2
Close MSRIV 3 PIL V2
Close MSRIV 1 PIL V3
Close MSRIV 2 PIL V3
Close MSRIV 3 PIL V3
Close MSRIV 4 PIL V3
Close MSRIV 1 PIL V4
Close MSRIV 2 PIL V4
Close MSRIV 3 PIL V4
Close MSRIV 4 PIL V4
Close MSRIV 1 PIL V1
Close MSRIV 2 PIL V1
Close MSRIV 3 PIL V1
Close MSRIV 4 PIL V1
MSRCV 1 MSRCV 2 MSRCV 3 MSRCV 4
R S R S R S R S
1 out of 2
(4) (4)
(2)(2) (2) (2)
(2) (2) (2) (2) (2) (2) (2) (2) (2) (2) (2) (2)(4)(4)(4)(4)(4)(4)
1 out of 21 out of 21 out of 2
ManualMSRT 3 Isolation
R A
ManualMSRT 1 Isolation
R A
ManualMSRT 1 Isolation
R A R A
ManualMSRT 2 Isolation
R A
ManualMSRT 3 Isolation
R A
ManualMSRT 4 Isolation
EPR3345 T2
Tier 2 Revision 5 Page 7.3-75
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-14—Main Steam Isolation (Div. 1&2)
(Figure 7.3-25)SG1
isolation
Division 1
(Figure 7.2-18)RT � SG
pressure drop
(Figure 7.2-19)RT � Low SG
pressure
OR
S R
OR
(Figure 7.3-25)SG3
isolation
(Figure 7.3-25)SG2
isolation
(Figure 7.3-25)SG4
isolation
OR OR
Open MSIV1 FST CLS PIL 1Open MSIV1 EX PIL 1
Close Train 1 BYP I-VClose Train 1 Upstream D-V
Open MSIV2 FST CLS PIL 1 Open MSIV3 FST CLS PIL 1 Close Train 3 BYP C-VClose Train 3 D-V
Open MSIV4 FST CLS PIL 1Open MSIV4 EX PIL 1Close Train 4 Downstream D-V
OR OROR OR
(Figure 7.3-25)SG2
isolation
Division 2
S R
OR
(Figure 7.3-25)SG4
isolation
(Figure 7.3-25)SG1
isolation
(Figure 7.3-25)SG3
isolation
OR OR
Open MSIV2 FST CLS PIL 2Open MSIV2 EX PIL 2
Close Train 2 BYP I-VClose Train 2 Upstream D-V
Open MSIV1 FST CLS PIL 2 Open MSIV4 FST CLS PIL 2Open MSIV3 FST CLS PIL 2Open MSIV3 EX PIL 2Close Train 3 Downstream D-V
OR OROR OR
Close Train 4 BYP C-VClose Train 4 D-V
Main Steam Isolation
Div. 1
Main Steam Isolation
Div. 2
2 out of 4
(4)
2 out of 4
(4)
Same as Division 1R
A R A R
REV 003EPR3350 T2
(Figure 7.2-18)RT � SG
pressure drop
(Figure 7.2-19)RT � Low SG
pressure
OR
(Figure 7.2-23)RT - High
Containment Pressure
(Figure 7.2-23)RT - High
Containment Pressure
ManualMain Steam
Isolation
ManualMain Steam
Isolation
A
ManualMain Steam
Isolation
Tier 2 Revision 5 Page 7.3-76
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-15—Main Steam Isolation (Div. 3&4)
(Figure 7.3-25)SG3
isolation
Division 3
S R
OR
(Figure 7.3-25)SG1
isolation
(Figure 7.3-25)SG2
isolation
(Figure 7.3-25)SG4
isolation
OR OR
Open MSIV3 FST CLS PIL 3Open MSIV3 EX PIL 3
Close Train 3 BYP I-VClose Train 3 Upstream D-V
Open MSIV4 FST CLS PIL 1 Open MSIV1 FST CLS PIL 3 Close Train 1 BYP C-VClose Train 1 D-V
Open MSIV2 FST CLS PIL 3Open MSIV2 EX PIL 1Close Train 2 Downstream D-V
OR OROR OR
(Figure 7.3-25)SG2
isolation
Division 4
S R
OR
(Figure 7.3-25)SG4
isolation
(Figure 7.3-25)SG3
isolation
(Figure 7.3-25)SG1
isolation
OR OR
Open MSIV4 FST CLS PIL 2Open MSIV4 EX PIL 2
Close Train 2 BYP I-VClose Train 2 Upstream D-V
Open MSIV3 FST CLS PIL 4 Open MSIV2 FST CLS PIL 4Open MSIV1 FST CLS PIL 4Open MSIV1 EX PIL 2Close Train 1 Downstream D-V
OR OROR OR
Close Train 4 BYP C-VClose Train 4 D-V
Main Steam Isolation
Div. 3
Main Steam Isolation
Div. 4
Same as Division 1
2 out of 4
(4)
2 out of 4
(4)
Same as Division 1
A R A R
REV 003EPR3355 T2
(Figure 7.2-18)RT � SG
pressure drop
(Figure 7.2-19)RT � Low SG
pressure
OR
(Figure 7.2-23)RT - High
Containment Pressure
(Figure 7.2-18)RT � SG
pressure drop
(Figure 7.2-19)RT � Low SG
pressure
OR
(Figure 7.2-23)RT - High
Containment Pressure
ManualMain Steam
Isolation
ManualMain Steam
Isolation
Tier 2 Revision 5 Page 7.3-77
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-16—MFWS Isolation - Full Load
maxMax0p
maxMax0p
maxMax0p
maxMax0p
SG4 LEVEL NR
[1]
SG1 LEVEL NR
[1]
SG2 LEVEL NR
[1]
SG3 LEVEL NR
[1]
maxMax1p
maxMax1p
maxMax1p
maxMax1p
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(Figure 7.2-32)Permissive
P13 validated
(Figure 7.2-24)Div. 1
RT Initiated
& &&&
t 0 t 0
& &
OR OR
SG1 Level >Max0p
MFW1 Full load isolation
SG3 Level >Max0p
MFW3 Full load isolation
Division 1
Same as Division 1 Same as Division 1 Same as Division 1
SG4 LEVEL NR
[2]
SG3 LEVEL NR
[2]
SG2 LEVEL NR
[2]
SG1 LEVEL NR
[2]
Same as Division 1 Same as Division 1 Same as Division 1
SG2 Level >Max0p
MFW2 Full load isolation
SG4 Level >Max0p
MFW4 Full load isolation
SG2 Level >Max0p
MFW2 Full load isolation
SG4 Level >Max0p
MFW4 Full load isolation
SG1 Level >Max0p
MFW1 Full load isolation
SG3 Level >Max0p
MFW3 Full load isolation
(4) (4)(4) (4)(4) (4) (4)(4)(4)(4) (4)(4)
SG4 LEVEL NR
[3]
SG3 LEVEL NR
[3]
SG2 LEVEL NR
[3]
SG1 LEVEL NR
[3]
SG4 LEVEL NR
[4]
SG3 LEVEL NR
[4]
SG2 LEVEL NR
[4]
SG1 LEVEL NR
[4]
Division 2 Division 3 Division 4
REV 003EPR3360 T2
Tier 2 Revision 5 Page 7.3-78
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-17—MFWS Isolation - SSS
SG1 Pressure
[1]
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(4)
2 out of 4
(Figure 7.2-31)Permissive
P12 validated
MFW1 SSS isolation
MFW3 SSS isolation
Division 1
Same as Division 1 Same as Division 1 Same as Division 1
Same as Division 1 Same as Division 1 Same as Division 1
MFW2 SSS isolation
MFW4 SSS isolation
(4) (4)(4) (4)(4) (4) (4)(4)(4)(4) (4)(4)
Division 2 Division 3 Division 4
min
Calculation of variable
SG pressure setpoint
minMin2p
SG2 Pressure
[1]
min
Calculation of variable
SG pressure setpoint
minMin2p
SG3 Pressure
[1]
min
Calculation of variable
SG pressure setpoint
minMin2p
SG4 Pressure
[1]
min
Calculation of variable
SG pressure setpoint
minMin2p
& &
(Figure 7.3-16)SG1 Level >Max0p
(Figure 7.3-16)SG3 Level >Max0p
OR OR
MFW1 SSS isolation
MFW3 SSS isolation
MFW2 SSS isolation
MFW4 SSS isolation
SG1 Pressure
[2]
SG2 Pressure
[2]
SG3 Pressure
[2]
SG4 Pressure
[2]
SG1 Pressure
[3]
SG2 Pressure
[3]
SG3 Pressure
[3]
SG4 Pressure
[3]
SG1 Pressure
[4]
SG2 Pressure
[4]
SG3 Pressure
[4]
SG4 Pressure
[4]
EPR3365 T2
(note 1) (note 1) (note 1) (note 1)
Note 1: The condition to be detected is a SG pressure drop > Max 2p. This is implemented with a variable "Min" setpoint that decreases in a rate-limited manner.
REV 003
(Figure 7.2-23)RT - High
Containment Pressure
Tier 2 Revision 5 Page 7.3-79
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-18—MFW Actuators (Div. 1&2)
Close MFW1 I-VClose MFW1 LLD C-VClose MFW1 VLLD C-V
Close MFW1 FLD C-VClose MFW1 FLD FST CLS PIL2Open MFW1 FLD EX PIL2
Close MFW3 FLD FST CLS PIL1Open MFW3 FLD EX PIL1
Close MFW3 LLD I-V
Division 1 Division 2
(Figure 7.3-16)MFW3
Full load isolation
(Figure 7.3-25)SG3
isolation
(Figure 7.3-17)MFW3
SSS isolation
S R
OR OR
OR
OR
ManualMFW 3Isolation
A R
Close MFW2 I-VClose MFW2 LLD C-VClose MFW2 VLLD C-V
Close MFW2 FLD C-VClose MFW2 FLD FST CLS PIL2Open MFW2 FLD EX PIL2
Close MFW4 FLD FST CLS PIL1Open MFW4 FLD EX PIL1
Close MFW4 LLD I-V
S R
(Figure 7.3-16)MFW1
Full load isolation
(Figure 7.3-25)SG1
isolation
(Figure 7.3-17)MFW1
SSS isolation
S R
OR OR
OR
OR
ManualMFW 1Isolation
A R
S R
(Figure 7.3-16)MFW2
Full load isolation
(Figure 7.3-25)SG2
isolation
(Figure 7.3-17)MFW2
SSS isolation
S R
OR OR
OR
OR
ManualMFW 2Isolation
A R
S R
(Figure 7.3-16)MFW4
Full load isolation
(Figure 7.3-25)SG4
isolation
(Figure 7.3-17)MFW4
SSS isolation
S R
OR OR
OR
OR
ManualMFW 4Isolation
A R
S R
EPR3370 T2
Tier 2 Revision 5 Page 7.3-80
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-19—MFW Actuators (Div. 3&4)
Close MFW3 I-VClose MFW3 LLD C-VClose MFW3 VLLD C-V
Close MFW3 FLD C-VClose MFW3 FLD FST CLS PIL2Open MFW3 FLD EX PIL2
Close MFW1 FLD FST CLS PIL1Open MFW1 FLD EX PIL1
Close MFW1 LLD I-V
Division 3 Division 4
Close MFW4 I-VClose MFW4 LLD C-VClose MFW4 VLLD C-V
Close MFW4 FLD C-VClose MFW4 FLD FST CLS PIL2Open MFW4 FLD EX PIL2
Close MFW2 FLD FST CLS PIL1Open MFW2 FLD EX PIL1
Close MFW2 LLD I-V
(Figure 7.3-16)MFW1
Full load isolation
(Figure 7.3-25)SG1
isolation
(Figure 7.3-17)MFW1
SSS isolation
S R
OR OR
OR
OR
ManualMFW 1Isolation
A R
S R
(Figure 7.3-16)MFW3
Full load isolation
(Figure 7.3-25)SG3
isolation
(Figure 7.3-17)MFW3
SSS isolation
S R
OR OR
OR
OR
ManualMFW 3Isolation
A R
S R
(Figure 7.3-16)MFW2
Full load isolation
(Figure 7.3-25)SG2
isolation
(Figure 7.3-17)MFW2
SSS isolation
S R
OR OR
OR
OR
ManualMFW 2Isolation
A R
S R
(Figure 7.3-16)MFW4
Full load isolation
(Figure 7.3-25)SG4
isolation
(Figure 7.3-17)MFW4
SSS isolation
S R
OR OR
OR
OR
ManualMFW 4Isolation
A R
S R
EPR3375 T2
Tier 2 Revision 5 Page 7.3-81
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-20—Containment Isolation
Containment Service
Compartment Press WR
[1]
(4)
(Figure 7.2-23)RT � High
Containment Pressure
(Figure 7.3-2)SIS Actuation
OR
max Max3p
Same as Division 1 Same as Division 1 Same as Division 1
Same as Division 1
Division 1 Division 2 Division 3 Division 4
SR
Same as Division 1
S R
ManualStage 2Isolation
A R
ManualStage 1Isolation
R AOR
Same as Division 1
Close Stage 2 CI-V
(4)
max
2 out of 4 2 out of 4
OR
(4)
Max1p
Containment Hi Range Activity
[1]
Containment Hi Range Activity
[2]
(4)
Containment Hi Range Activity
[3]
Containment Hi Range Activity
[4]
Containment Service
Compartment Press WR
[2]
Containment Service
Compartment Press WR
[3]
Containment Service
Compartment Press WR
[4]
ManualStage 1Isolation
RA
ManualStage 2Isolation
R A
2 out of 4
(4)
2 out of 4
(4)
(4)(4) (4) (4) (4)(4) (4) (4) (4)(4)
Note: The Stage 1 Containment Isolation time delays for valves located inside containment are described in Table 6.2.4-1
t 0t 0t 0
Start Accident Annulus Ventilation
Train
Close Stage 1
Inside Reactor Containment
CI-VGroup - 3
CloseStage 1
Inside Reactor Containment
CI-VGroup � 2
CloseStage 1
Inside Reactor Containment
CI-VGroup � 1
CloseStage 1 Inside
and Outside Reactor
Containment CI-V
Close Stage 2 CI-VTrip RCP1 Stage 2 CI
Close Stage 1
Inside Reactor Containment
CI-VGroup - 3
CloseStage 1
Inside Reactor Containment
CI-VGroup � 2
CloseStage 1
Inside Reactor Containment
CI-VGroup � 1
CloseStage 1 Inside
and Outside Reactor
Containment CI-V
Trip RCP 2 Stage 2 CI
Close Stage 1
Inside Reactor Containment
CI-VGroup - 3
CloseStage 1
Inside Reactor Containment
CI-VGroup � 2
CloseStage 1
Inside Reactor Containment
CI-VGroup � 1
CloseStage 1 Inside
and Outside Reactor
Containment CI-V
Trip RCP 3 Stage 2 CI
Trip RCP 4 Stage 2 CI
Close Stage 1
Inside Reactor Containment
CI-VGroup - 3
CloseStage 1
Inside Reactor Containment
CI-VGroup � 2
CloseStage 1
Inside Reactor Containment
CI-VGroup � 1
CloseStage 1 Inside
and Outside Reactor
Containment CI-V
Start Accident Annulus Ventilation
Train
REV 005EPR3380 T2
Tier 2 Revision 5 Page 7.3-82
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-21—CVCS Charging Isolation
PZRLEVEL NR
[1]
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Max2p
Same as Division 1 Same as Division 1
PZRLEVEL NR
[2]
PZRLEVEL NR
[3]
PZRLEVEL NR
[4]
(Figure 7.2-36)Permissive
P17 validated
(4)
Close charging line CI-V Close Aux Spray I-V
max
Close Charging Line I-V
ManualCVCS
Isolation 1
R A
(Figure 7.3-20)Stage 2
Containment Isolation
OR
&
2 out of 4(Figure 7.2-36)
Permissive P17 validated
ManualCVCS
Isolation 2
R A
(4)
2 out of 4
(4)
&
OROR
&
2 out of 4
REV 005EPR3385 T2
Tier 2 Revision 5 Page 7.3-83
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-22—CVCS Isolation for Anti-Dilution
COLDLEG1Temp. WR
Calculation of variable setpoint
Calculation of reactor coolant
mass
Calculation of reactor coolant boron concentration
(variable coolant mass)
Boron Concentration
[1]
CVCS Charging Line
Flow[1]
Calculation of reactor coolant
boron concentration (fixed coolant mass)
minmin min
2 out of 42 out of 4 2 out of 4
&&
OR
&
Division 1
Same as Division 1
Same as Division 1
Division 2 Division 3 Division 4
(4) (4)(4)
(4) (4) (4)
Same as Division 1 Same as Division 1
(Figure 7.2-34)Permissive
P7 validated
(Figure 7.2-30)Permissive
P8 validated
Close VCT I-V 1 Close VCT I-V 2Close Letdown line I-V
COLDLEG2Temp. WR
Boron Concentration
[2]
CVCS Charging Line
Flow[2]
R S
ManualBoron
calculation Initialize
A R
ManualBoron
Dilution
A R
COLDLEG3Temp. WR
Boron Concentration
[3]
CVCS Charging Line
Flow[3]
COLDLEG4Temp. WR
Boron Concentration
[4]
CVCS Charging Line
Flow[4]
ManualCVCS
Isolaton for Anti-Dilution
A R
REV 003EPR3390 T2
Tier 2 Revision 5 Page 7.3-84
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-23—EDG Actuation
Div. 1- 6.9kV bus voltage
phase[3]
Div. 1- 6.9kV bus voltage
phase[2]
Div. 1- 6.9kV bus voltage
phase[1]
minMin (LOV)min
Min (DEGV)
t 0TDEGV
1
t 0
TLOV
S R
minMin (LOV)min
Min (DEGV) minmin
Min (DEGV)
Min (LOV)
t 0 t 0
TLOV
t 0 TDEGV 1
t 0
TLOV
2 out of 3 2 out of 3 ManualEDG 1
Actuation
A R
ManualEDG 1
Actuation
A R
OR
OR
(Figure 7.3-2)SIS Actuation
Start EDG 1
Division 1
Div. 2- 6.9kV bus voltage
phase[3]
Div. 2- 6.9kV bus voltage
phase[2]
Div. 2- 6.9kV bus voltage
phase[1]
Same as Division 1
Division 2
Start EDG 2
Div. 3- 6.9kV bus voltage
phase[3]
Div. 3- 6.9kV bus voltage
phase[2]
Div. 3- 6.9kV bus voltage
phase[1]
Same as Division 1
Division 3
Start EDG 3
Div. 4- 6.9kV bus voltage
phase[3]
Div. 4- 6.9kV bus voltage
phase[2]
Div. 4- 6.9kV bus voltage
phase[1]
Same as Division 1
Division 4
Start EDG 4
REV 003EPR3395 T2
OR
LOOP
AND
t 0TDEGV
2
TDEGV 1
Tier 2 Revision 5 Page 7.3-85
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-24—PSRV Opening (Brittle Fracture Protection)
max Max PSRV2
max MaxPSRV1
2 out of 4
(4)
&
(Figure 7.2-36)Permissive
P17 validated
(4)
Same as Division 1
Division 1
Same as Division 1
(4)
Same as Division 1
Same as Division 1
(4)
Division 2 Division 3 Division 4
HOTLEG1Pressure NR
HOTLEG2Pressure NR
HOTLEG3Pressure NR
HOTLEG4Pressure NR
Open PSRV1 SOV 1
Open PSRV1 SOV 2 Open PSRV2 SOV 1 Open PSRV2 SOV 2
Same as Division 1 Same as Division 1
REV 002EPR3400 T2
OR
ManualPSRV
Opening
A R
Tier 2 Revision 5 Page 7.3-86
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-25—SG Isolation (Div. 1&2)
(Figure 7.3-8)
Partial Cooldown Actuation
Division 1 Division 2
(4)(4) (4) (4)
Same as Division 1
maxMax1p
maxMax1p
maxMax1p
maxMax1p
maxMax2p
maxMax2p
maxMax2p
maxMax2p
2 out of 4 2 out of 4 2 out of 42 out of 4(4)(4) (4) (4)
2 out of 4 2 out of 42 out of 42 out of 4
SG4 LEVEL NR
[1]
SG1 LEVEL NR
[1]
SG2 LEVEL NR
[1]
SG3 LEVEL NR
[1]
SG 1 SG 4
SG 1 Sel SG 4 Sel
First in Priority
SG 2 SG 3
SG 2 Sel SG 3 Sel
OROROR OR
& &&&
(4) (4)(4)(4)(4)(4)(4)(4)
Same as Division 1
MS1 ACTIVITY
[1]
MS2 ACTIVITY
[1]
MS3 ACTIVITY
[1]
MS4 ACTIVITY
[1]
SG4 LEVEL NR
[2]
SG1 LEVEL NR
[2]
SG2 LEVEL NR
[2]
SG3 LEVEL NR
[2]
MS1 ACTIVITY
[2]
MS2 ACTIVITY
[2]
MS3 ACTIVITY
[2]
MS4 ACTIVITY
[2]
OR OR OR OR
R S R S R S R S
(Figure 7.2-32)Permissive
P13 validated
&& & &
(4)(4) (4) (4)
2 out of 4 2 out of 42 out of 42 out of 4
ManualSG1
Isolation
R A
ManualSG2
Isolation
R A
ManualSG3
Isolation
R A
ManualSG4
Isolation
R A
ManualSG Isolation
R A
SG 3 Isolation
SG 4 Isolation
SG 2 Isolation
SG 1 Isolation
(4)(4)(4) (4)
SG 4 Isolation
SG 3 Isolation
SG 2 Isolation
SG 1 Isolation
EPR3405 T2
Tier 2 Revision 5 Page 7.3-87
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-26—SG Isolation (Div. 3&4)
Division 3
Same as Division 1
(4) (4)(4)(4)(4)(4)(4)(4)
Same as Division 1
SG4 LEVEL NR
[3]
SG1 LEVEL NR
[3]
SG2 LEVEL NR
[3]
SG3 LEVEL NR
[3]
MS1 ACTIVITY
[3]
MS2 ACTIVITY
[3]
MS3 ACTIVITY
[3]
MS4 ACTIVITY
[3]
(4)(4)(4) (4)
SG 4 Isolation
SG 3 Isolation
SG 2 Isolation
SG 1 Isolation
Division 4
Same as Division 1
(4) (4)(4)(4)(4)(4)(4)(4)
Same as Division 1
SG4 LEVEL NR
[4]
SG1 LEVEL NR
[4]
SG2 LEVEL NR
[4]
SG3 LEVEL NR
[4]
MS1 ACTIVITY
[4]
MS2 ACTIVITY
[4]
MS3 ACTIVITY
[4]
MS4 ACTIVITY
[4]
(4)(4)(4) (4)
SG 4 Isolation
SG 3 Isolation
SG 2 Isolation
SG 1 Isolation
EPR3410 T2
Tier 2 Revision 5 Page 7.3-88
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-27—RCP Trip
RCP1dP [1]
RCP1dP [2]
t 0
&
2 out of 4
(4)
1 out of 2
min Min 1p min Min 1p
RCP2dP [1]
RCP2dP [2]
Same as Division 1
Same as Division 1
Open RCP1 Breaker Open RCP2 Bus Breaker
Division 1 Division 2 Division 3 Division 4
(4)
RCP3dP[1]
RCP3dP [2]
Same as Division 1
Same as Division 1
(4)
RCP4dP [1]
RCP4dP [2]
Same as Division 1
Same as Division 1
(4)
(Figure 7.3-2)SIS actuation
Open RCP2 Breaker Open RCP1 Bus Breaker Open RCP3 Breaker Open RCP4 Bus Breaker Open RCP4 Breaker Open RCP3 Bus Breaker
S R
ManualRCPTrip
A R
(Figure 7.3-20)Containment
Isolation Stage 2
OR
REV 002EPR3415 T2
OR
ManualRCP1Trip
A R
S R
ManualRCP2Trip
A R
OR
Tier 2 Revision 5 Page 7.3-89
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-28—MCR Air Conditioning System Isolation and Filtering
Division 1 Division 2 Division 3 Division 4
max Max1p
1 out of 4
(4)
Same as Division 2
Same as Division 2
(4)
Same as Division 1
Same as Division 1
(4)
Train 4 MCR Intake Activity
[1]
R
Train 4 MCR Intake Activity
[3]
Reconfigure Train 1 Air Intake
R S
Train 1 MCR Intake Activity
[4]
Reconfigure Train 1 Air Intake Reconfigure Train 4 Air Intake
1 out of 2
(2)
(2) (2)
ManualMCR Intake
Interface
AR
REV 003EPR3420 T2
max Max1p
1 out of 4
(4)
Train 1 MCR Intake Activity
[2]
RR S
1 out of 2
(2)
ManualMCR Intake Reconfigure
RA
ManualMCR Intake
Interface
AR
Reconfigure Train 4 Air Intake
OR
(Figure 7.3-20)Stage 1
ContainmentIsolation
OR
(Figure 7.3-20)Stage 1
ContainmentIsolation
Tier 2 Revision 5 Page 7.3-90
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-29—Turbine Trip on Reactor Trip Initiation
Turbine Trip
Division 4Division 2 Division 3Division 1
Same as Division 1 Same as Division 1 Same as Division 1
Turbine Trip Turbine Trip Turbine Trip
t 0
(Figure 7.2-24)Div. 1
RT Initiated
ManualTurbine
Trip
A R
(4)
2 out of 4
OR
S R
ManualTurbine
Trip
A R
Same as Division 1 Same as Division 1 Same as Division 1
(4) (4) (4)
(Figure 7.2-24)Div. 2
RT Initiated
(Figure 7.2-24)Div. 3
RT Initiated
(Figure 7.2-24)Div. 4
RT Initiated
REV 003EPR3425 T2
Tier 2 Revision 5 Page 7.3-91
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-30—Hydrogen Mixing Dampers Opening.
Containment Service
Compartment Press NR
[1]
(4)(8)
2 out of 8
(4)
2 out of 4
Division 1
Same as Division 1
Same as Division 1
(8) (4)(4)
Division 2 Division 3 Division 4
OR
Containment Service
Compartment Press NR
[2]
Equipment Room/Containment Service Compartment Room
dP Sensor [3]
Equipment Room/Containment Service Compartment Room
dP Sensor [4]
maxMax1p
S R
Equipment Room/Containment Service Compartment Room
dP Sensor [1]
maxMax1p
Equipment Room/Containment Service Compartment Room
dP Sensor [2]
maxMax1p
2 out of 4
ManualHMD Open
A R
ManualHMD Open
A R
Same as Division 1
Same as Division 1
(8) (4)(4)
Containment Service
Compartment Press NR
[3]
Equipment Room/Containment Service Compartment Room
dP Sensor [5]
Equipment Room/Containment Service Compartment Room
dP Sensor [6]
Same as Division 1
Same as Division 1
(8) (4)(4)
Containment Service
Compartment Press NR
[4]
Equipment Room/Containment Service Compartment Room
dP Sensor [7]
Equipment Room/Containment Service Compartment Room
dP Sensor [8]
Open HMD1Open HMD2 Open HMD3
Open HMD4Open HMD5Open HMD6
Open HMD7Open HMD8
AbsAbs
EPR3426 T2
Tier 2 Revision 5 Page 7.3-92
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-31—AVS Accident Filtration Train Heater Control
Division 1 Division 4
Same as Division 1
> Max2pmax
TEMP TEMP
EPR3476 T2
> Max1pmax&
&
IsolationDampers Open
Isolation Dampers Open
Heater FanRunning
1.5 kW Electrical Heater
OnOff
4.5 kW Electrical Heater
OnOff
TEMP TEMPIsolation
Dampers OpenIsolation
Dampers OpenHeater Fan
Running
1.5 kW Electrical Heater
OnOff
4.5 kW Electrical Heater
OnOff
Tier 2 Revision 5 Page 7.3-93
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-32—AVS Accident Train Switchover
Division 4
< Min1p> Max1p
S R
POST HEATER TEMP
[1] PRESS PRESS
> Max2p
DIFFERENTIALPRESS
OR
FILTER BANK ISOLATION INLET
DAMPER OPENED
S R
&
&
Division 1 The same logic switchover is implemented for Train 4 to 1
Containment Isolation Signal
Figure 7.3-20
EPR3478 T2
FILTER BANK ISOLATION OUTLET
DAMPER OPENED
EXHAUST FAN RUNNING
< Min2p> Max2p
POST HEATER TEMP
[2]
Close Filter Bank Isolation Inlet Damper Train 4 Close Filter Bank Isolation Outlet Damper Train 4 Stop Exhaust Fan Train 4 Electric Heater Train 4 Off
Open Filter Bank Isolation Inlet Damper Train 1
Open Filter Bank Isolation Outlet Damper Train 1
Start Exhaust Fan Train 1
Electric Heater Train 1 On
maxmaxmax min min
Tier 2 Revision 5 Page 7.3-94
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-33—CCWS Common 1.b and 2.b Automatic Backup SwitchoverSheet 1 of 2
REV 005EPR3480 T2Division 1 Division 2
OR
Train 1 ESWS Pump Discharge PRESS
Train 1 Pump Discharge PRESS
Train 1 FLOW RATE
min min
- Open Train 1 LHSI HeatExchanger Isolation Valve
- Open Train 1 Pilot Valve 006A- Open Train 1 Pilot Valve 010A- Close Train 2 Pilot Valve 006A- Close Train 2 Pilot Valve 010A
Div 2Div 3Div 4
Div 2Div 3Div 4
Div 2
Div 4Div 3
t 0
min
(Figure 7.3-35)Disable Train 2
Switchover Sequence(Div 2)
&
- Start Train 1 CCW Pump- Start Train 1 ESW Pump
- Open ESW Pump Discharge Isolation Valve
- Start UHS Fans- Start ESW Pump Room Fan
- Close Train 1 Pilot Valve 006A- Close Train 1 Pilot Valve 010A- Open Train 2 Pilot Valve 006A- Open Train 2 Pilot Valve 010A
OR
min min
Train 2 Pump Discharge
PRESS
Train 2 ESWS Pump Discharge PRESS
Train 2 FLOW RATE
t 0
min
&
(Figure 7.3-35)Disable Train 1
Switchover Sequence(Div 1)
Same as Division 1 Same as Division 1 Same as Division 1
Train 1 Pump Discharge PRESS
Train 1 FLOW RATE
Train 1 ESWS Pump Discharge PRESS
Train 1 Pump Discharge PRESS
Train 1 FLOW RATE
Train 1 ESWS Pump Discharge PRESS
Train 2 Pump Discharge PRESS
Train 2 FLOW RATE
Train 2 ESWS Pump Discharge PRESS
Train 1 Pump Discharge
PRESS
Train 1 FLOW RATE
Train 1 ESWS Pump Discharge PRESS
Train 2 Pump Discharge
PRESS
Train 2 FLOW RATE
Train 2 ESWS Pump Discharge PRESS
Train 2 Pump Discharge PRESS
Train 2 FLOW RATE
Div 1Div 3Div 4
Div 1Div 3Div 4
Div 1
Div 4Div 3
Train 2 ESWS Pump Discharge PRESS
- Start Train 2 CCW Pump- Start Train 2 ESW Pump
- Open ESW Pump Discharge Isolation Valve
- Start UHS Fans- Start ESW Pump Room Fan
- Open Train 1 Pilot Valve 006B- Open Train 1 Pilot Valve 010B- Close Train 2 Pilot Valve 006B- Close Train 2 Pilot Valve 010B
- Open Train 2 LHSI HeatExchanger Isolation Valve
- Close Train 1 Pilot Valve 006B- Close Train 1 Pilot Valve 010B- Open Train 2 Pilot Valve 006B- Open Train 2 Pilot Valve 010B
- Open Train 1 Pilot Valve 006C- Open Train 1 Pilot Valve 010C- Close Train 2 Pilot Valve 006C- Close Train 2 Pilot Valve 010C
- Close Train 1 Pilot Valve 006C- Close Train 1 Pilot Valve 010C- Open Train 2 Pilot Valve 006C- Open Train 2 Pilot Valve 010C
- Open Train 1 Pilot Valve 006D- Open Train 1 Pilot Valve 010D- Close Train 2 Pilot Valve 006D- Close Train 2 Pilot Valve 010D
- Close Train 1 Pilot Valve 006D- Close Train 1 Pilot Valve 010D- Open Train 2 Pilot Valve 006D- Open Train 2 Pilot Valve 010D
Division 3 Division 4
Tier 2 Revision 5 Page 7.3-95
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-33—CCWS Common 1.b and 2.b Automatic Backup SwitchoverSheet 2 of 2
Division 1 Division 2
OR
Train 3 ESWS Pump Discharge PRESS
Train 3 Pump Discharge PRESS
Train 3 FLOW RATE
min min
- Open Train 3 LHSI HeatExchanger Isolation Valve
- Open Train 3 Pilot Valve 006C- Open Train 3 Pilot Valve 010C- Close Train 4 Pilot Valve 006C- Close Train 4 Pilot Valve 010C
Div 1Div 2Div 4
Div 1Div 2Div 4
Div 1
Div 4Div 2
t 0
min
(Figure 7.3-35)Disable Train 4
Switchover Sequence(Div 4)
&
- Start Train 3 CCW Pump- Start Train 3 ESW Pump
- Open ESW Pump Discharge Isolation Valve
- Start UHS Fans- Start ESW Pump Room Fan
- Close Train 3 Pilot Valve 006C- Close Train 3 Pilot Valve 010C- Open Train 4 Pilot Valve 006C- Open Train 4 Pilot Valve 010C
OR
min min
Train 4 Pump Discharge PRESS
Train 4 ESWS Pump Discharge PRESS
Train 4 FLOW RATE
t 0
min
&
(Figure 7.3-35)Disable Train 3
Switchover Sequence(Div 3)
Same as Division 3Same as Division 3 Same as Division 3
Train 3 Pump Discharge
PRESS
Train 3 FLOW RATE
Train 3 ESWS Pump Discharge PRESS
Train 3 Pump Discharge PRESS
Train 3 FLOW RATE
Train 3 ESWS Pump Discharge PRESS
Train 4 Pump Discharge
PRESS
Train 4 FLOW RATE
Train 4 ESWS Pump Discharge PRESS
Train 3 Pump Discharge
PRESS
Train 3 FLOW RATE
Train 3 ESWS Pump Discharge PRESS
Train 4 Pump Discharge PRESS
Train 4 FLOW RATE
Train 4 ESWS Pump Discharge PRESS
Train 4 Pump Discharge PRESS
Train 4 FLOW RATE
Div 1Div 2Div 3
Div 1Div 2Div 3
Div 1
Div 3Div 2
Train 4 ESWS Pump Discharge PRESS
- Start Train 4 CCW Pump- Start Train 4 ESW Pump
- Open ESW Pump Discharge Isolation Valve
- Start UHS Fans- Start ESW Pump Room Fan
- Open Train 3 Pilot Valve 006D- Open Train 3 Pilot Valve 010D- Close Train 4 Pilot Valve 006D- Close Train 4 Pilot Valve 010D
- Open Train 4 LHSI HeatExchanger Isolation Valve
- Close Train 3 Pilot Valve 006D- Close Train 3 Pilot Valve 010D- Open Train 4 Pilot Valve 006D- Open Train 4 Pilot Valve 010D
- Open Train 3 Pilot Valve 006A- Open Train 3 Pilot Valve 010A- Close Train 4 Pilot Valve 006A- Close Train 4 Pilot Valve 010A
- Close Train 3 Pilot Valve 006A- Close Train 3 Pilot Valve 010A- Open Train 4 Pilot Valve 006A- Open Train 4 Pilot Valve 010A
- Open Train 3 Pilot Valve 006B- Open Train 3 Pilot Valve 010B- Close Train 4 Pilot Valve 006B- Close Train 4 Pilot Valve 010B
- Close Train 3 Pilot Valve 006B- Close Train 3 Pilot Valve 010B- Open Train 4 Pilot Valve 006B- Open Train 4 Pilot Valve 010B
Division 3 Division 4
EPR3481 T2
Tier 2 Revision 5 Page 7.3-96
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-34—CCWS Emergency Temperature Control
max> Max1p
max> Max1p
max> Max1p
Train 1 Heat Exchanger
2 out of 3
&
Train 1 Heat Exchanger
Bypass Valve CLOSED
Division 1 Division 3
max> Max1p
max> Max1p
max> Max1p
2 of 3
&
1
Train 2 Heat Exchanger Bypass Valve CLOSED
max> Max1p
max max> Max1p
2 of 3
&
1
Train 3 Heat Exchanger Bypass Valve CLOSED
max> Max1p
max> Max1p
max> Max1p
2 of 3
&
1
Train 4 Heat Exchanger Bypass Valve CLOSED
Division 2Division 4
Same as Division 1 Same as Division 1 Same as Division 1
TEMP [1]
TEMP [2]
TEMP [3]
TEMP [1]
TEMP [2]
TEMP [3]
TEMP [1]
TEMP [2]
TEMP [3]
TEMP[1]
TEMP [2]
TEMP [3]
EPR3482 T2
Train 2 Heat Exchanger Train 3 Heat Exchanger Train 4 Heat Exchanger
Close Train 1 Heat Exchanger Bypass Valve
Close Train 2 Heat Exchanger Bypass Valve
Close Train 4 Heat Exchanger Bypass Valve
Close Train 3 Heat Exchanger Bypass Valve
Tier 2 Revision 5 Page 7.3-97
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-35—CCWS Emergency Leak Detection
REV 005EPR3484 T2
Division 1The same logic is implemented for Divisions 2,3,& 4
Train 2 Surge Tank Level < Min3
(Div 2)
&
+ -
> Max1p
Common 1.b OCWS Chillers
Outlet Flow
Abs
&
Common 1.b OCWS Chillers
Inlet Flow
max
- Close Common 1.b CONT Ventilation and RCD Inlet Isolation Valve 001
- Close Common 1.b CONT Ventilation and RCD Outlet Isolation Valve 006
- Open Common 1.b OCWS Chillers Inlet Pilot Valve 015A
- Open Common 1.b OCWS Chillers Inlet Pilot Valve 016A
- Open Common 1.b OCWSChillers Outlet Pilot Valve 019A
Train 1 Surge TankLEVEL
[1]
Train 1 Surge TankLEVEL
[2]
min min minminmin
OR
OR
OR
min
OR
&
- Close Train 1 DWDS Supply Isolation Valve
- Disable Train 1 Switchover Sequence
- Open Train 4 Pilot Valve 006A- Open Train 4 Pilot Valve 010A- Open Train 4 Pilot Valve 032A- Open Train 4 Pilot Valve 033A
< Min3p < Min3p < Min4p< Min4p < Min2p
< Min2p
Train 1 Surge Tank Level < Min3(Div 2, 3 & 4)
Train 3 Surge Tank Level < Min3
(Div 3)
Train 4 Surge Tank Level < Min3
(Div 4)
Common 1.b OCWS Chillers Flow Mismatch
(Div 2)
Common 1.b CONT
Ventilation and RCD Coolers
Flow Mismatch(Div 4)
- Open Train 3 Pilot Valve 006A- Open Train 3 Pilot Valve 010A
- Open Train 2 Pilot Valve 006A- Open Train 2 Pilot Valve 010A
- Open Train 1 Pilot Valve 006A- Open Train 1 Pilot Valve 010A- Open Train 1 Pilot Valve 032A- Open Train 1 Pilot Valve 033A
OR
Train 1 Surge Tank Level < Min2
(Div 2)
Train 2 Surge Tank Level < Min2
(Div 2)
NOTE: -The Common 1.b CONT Ventilation and RCD Coolers Inlet & Outlet Flow Sensors are in Division 4.-The Common 1.b CONT Ventilation and RCD Coolers Outlet Isolation Valve 012 is controlled from Division 4.-The Common 2.b NSR Users Inlet & Outlet Flow Sensors are in Division 4.-The Common 2.b NSR Users Pilot Valves are controlled from Divisions 3 & 4.
Tier 2 Revision 5 Page 7.3-98
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-36—CCWS Emergency Leak Detection - Switchover Valves Leakage or Failure
Division 1
The same logic is implemented for Division 3 & 4 REV 005EPR3490 T2
&
- Open Train 1 Pilot Valve 006A- Open Train 1 Pilot Valve 010A- Open Train 1 Pilot Valve 032A- Open Train 1 Pilot Valve 033A
OR OR
- Open Train 2 Pilot Valve 006B- Open Train 2 Pilot Valve 010B- Open Train 2 Pilot Valve 032B- Open Train 2 Pilot Valve 033B
&
Surge Tank 2 LEVEL
[2]
< Min3p > Max2p
Surge Tank 2 LEVEL
[1]
OR
maxminmax> Max2p
min< Min3p
OR
Surge Tank 1 LEVEL
[2]
< Min3p > Max2p
Surge Tank 1 LEVEL
[1]
OR
maxminmax> Max2p
min< Min3p
OR
Division 2
Train 1 Switchover Valves Leakage/Failure
(Div 2, 3 & 4)
Train 2 Switchover Valves Leakage/Failure
(Div 2)
Train 3 Switchover Valves Leakage/Failure
(Div 3)
Train 4 Switchover Valves Leakage/Failure
(Div 4)
- Open Train 4 Pilot Valve 006A- Open Train 4 Pilot Valve 010A- Open Train 4 Pilot Valve 032A- Open Train 4 Pilot Valve 033A
- Open Train 3 Pilot Valve 006A- Open Train 3 Pilot Valve 010A
- Open Train 2 Pilot Valve 006A- Open Train 2 Pilot Valve 010A
Train 1 Switchover Valves Leakage/Failure
(Div 1)
Train 3 Switchover Valves Leakage/Failure
(Div 3)
Train 4 Switchover Valves Leakage/Failure
(Div 4)
- Open Train 4 Pilot Valve 006B- Open Train 4 Pilot Valve 010B
- Open Train 3 Pilot Valve 006B- Open Train 3 Pilot Valve 010B- Open Train 3 Pilot Valve 032B- Open Train 3 Pilot Valve 033B
- Open Train 1 Pilot Valve 006B- Open Train 1 Pilot Valve 010B
Train 2 Switchover Valves Leakage/Failure
(Div 1, 3 & 4)
Tier 2 Revision 5 Page 7.3-99
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-37—SCWS Condenser Supply Water Flow Control
Division 2 Division 3
Condenser RefrigerantPRESS
+
-
PI
Close Open
Setpoint
+
-
PI
Close Open
Setpoint
Same as Division 2
EPR3492 T2
Condenser RefrigerantPRESS
OpenClose
CCWS 3-Way Valve
OpenClose
CCWS 3-Way Valve
Tier 2 Revision 5 Page 7.3-100
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-38—ESWPBVS ESWS Pump Rooms Temperature Control
Division 1
< Min1pmin
Outside AirTEMP
max> Max1p
Division 2 Division 3 Division 4
Same as Division 1
Outside AirTEMP
Open Supply DamperOpen Exhaust Damper
Close Supply DamperClose Exhaust Damper
Same as Division 1
Outside AirTEMP
Open Supply DamperOpen Exhaust Damper
Close Supply DamperClose Exhaust Damper
Same as Division 1
Outside AirTEMP
Open Supply DamperOpen Exhaust Damper
Close Supply DamperClose Exhaust Damper
Open Supply DamperOpen Exhaust Damper
Close Supply DamperClose Exhaust Damper
REV 005EPR3498 T2
Tier 2 Revision 5 Page 7.3-101
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-39—FBVS Safety-Related Rooms Heater Control
Division 1
< Min1p
EBS Room TEMP
[1]
> Max1p
Same as Division 1
Division 4
EBS Room TEMP
[2]Pipe Chase Room
TEMP
EBS Room TEMP
[1]
EBS Room TEMP
[2]
OnOff
Pump Room Electrical Heater
OnOff
Pump Room Electrical Heater
OnOff
Pipe Chase Electrical Heater
OnOff
Pipe Chase Electrical Heater
Pipe Chase Room TEMP
Pipe Chase Room TEMP
Pipe Chase Room TEMP
REV 005EPR3500 T2
max min< Min1p> Max1p
max min< Min1p> Max1p
max min
< Min1p
> Max1pmax min
OnOff
Pump Room Electrical Heater
OnOff
Pump Room Electrical Heater
OnOff
Pipe Chase Electrical Heater
OnOff
Pipe Chase Electrical Heater
Tier 2 Revision 5 Page 7.3-102
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-40—FBVS EBS / FPCS Pump Rooms Heat Removal
Division 1
< Min1pmin
TEMP
max> Max1p < Min1p
minmax> Max1p < Min1p
minmax> Max1p
Same as Division 1
Division 4
EPR3502 T2
TEMP TEMPFPCPS Pump Room EBS Pump RoomFPCPS Pump Room
FPCPS Pump RoomTEMP
EBS Pump RoomTEMP
FPCPS Pump RoomTEMP
On Off
FPCPS Pump RoomRecirc Cooling Unit Fan
On Off
FPCPS Pump RoomRecirc Cooling Unit Fan
On Off
EBS Pump RoomRecirc Cooling Unit Fan
On Off
FPCPS Pump RoomRecirc Cooling Unit Fan
On Off
FPCPS Pump RoomRecirc Cooling Unit Fan
On Off
EBS Pump RoomRecirc Cooling Unit Fan
Tier 2 Revision 5 Page 7.3-103
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-41—FPCPS Pump Trip on Low SFP Level
Division 1 Division 4
< MIN3pmin < MIN3pmin
Same as Division 1
> MIN2pmin
EPR3504 T2
< MIN3pmin
> MIN2pmin
Spent Fuel PoolLEVEL (WR)
[1]
Spent Fuel PoolLEVEL (WR)
[2]
Spent Fuel Pool LEVEL (WR)
[1]
Spent Fuel Pool LEVEL (WR)
[2]
OROR
S R
Stop FPC Pumps Stop FPC Pumps
Tier 2 Revision 5 Page 7.3-104
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-42—CRACS Iodine Filtration Train Heater Control
Division 1 Division 4
Same as Division 1
Carbon Filter Train 1 Isolation Damper
OPEN
ESF Filtration Booster FanNot Running
Carbon Filter Train 1 Isolation Damper
OPEN
Protective Switch-off
TEMP
OR
OR
> Max1p
Carbon Filter Heater Off Carbon Filter Heater Off
max
Carbon Filter Train 4 Isolation Damper
OPEN
ESF Filtration Booster FanNot Running
Carbon Filter Train 4 Isolation Damper
OPEN
Protective Switch-off
TEMP
REV 005EPR3508 T2
Tier 2 Revision 5 Page 7.3-105
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-43—CRACS Heater Control for Outside Inlet Air
Same as Division 1
Division 1 Division 4
max> Max1p
OR
< Min1p
Downstream of Electric Heater
TEMP[1]
min
Inlet Damper Open
Outlet Damper Open Inlet Damper
OpenOutlet Damper
Open
EPR3510 T2
Downstream of Electric Heater
TEMP [2]
Downstream of Electric Heater
TEMP [1]
Downstream of Electric Heater
TEMP[2]
Heater
OffOn
Heater
OffOn
Tier 2 Revision 5 Page 7.3-106
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-44—CRACS Pressure Control
Division 1
+
-
PI
Close Open
Setpoint
MCR & Reference RoomDIFF PRESS
OpenClose
+
-
PI
Close Open
Setpoint
OpenClose
Division 4
Same as Division 1
EPR3512 T2
MCR & Reference RoomDIFF PRESS
Control Damper Control Damper
Tier 2 Revision 5 Page 7.3-107
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-45—CRACS Cooler Temperature Control
Division 1 Division 4
Same as Division 1
Supply Air TEMP
+-
Setpoint
Supply Air TEMP
OpenClose
SCWS Cooler Control Valve
Division 3
Same as Division 1
Supply Air TEMP
OpenClose
SCWS Cooler Control Valve
Division 2
Same as Division 1
Supply Air TEMP
OpenClose
SCWS Cooler Control Valve
OpenClose
SCWS Cooler Control Valve
PI
Close Open
REV 005EPR3514 T2
Tier 2 Revision 5 Page 7.3-108
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-46—SBVS SIS / RHRS Pump Rooms Heat Removal
Division 1
OR
Division 2 Division 3 Division 4
Same as Division 1
LHSI/RHRPump
Running
LHSI/RHRPump
Stopped
LHSIPumpRoomTEMP
[1]
LHSI PumpRoomTEMP
[2]
MHSI PumpRoomTEMP
[1]
MHSI PumpRoomTEMP
[2]
Recirculation Fan On Recirculation Fan Off Recirculation Fan On Recirculation Fan Off
MHSIPump
Stopped
MHSIPump
Running
Same as Division 1
LHSI/RHRPump
Running
LHSI/RHRPump
Stopped
LHSIPumpRoomTEMP
[1]
LHSI PumpRoomTEMP
[2]
MHSI PumpRoomTEMP
[1]
MHSI PumpRoomTEMP
[2]
Recirculation Fan On Recirculation Fan Off
MHSIPump
Stopped
MHSIPump
Running
Same as Division 1
LHSI/RHRPump
Running
LHSI/RHRPump
Stopped
LHSIPumpRoomTEMP
[1]
LHSI PumpRoomTEMP
[2]
MHSI PumpRoomTEMP
[1]
MHSI PumpRoomTEMP
[2]
Recirculation Fan On Recirculation Fan Off
MHSIPump
Stopped
MHSIPump
Running
max min
&
max
max
max
min
min
min
MHSI PumpRoomTEMP
[1]
MHSI PumpRoomTEMP
[2]
LHSI/RHRPump
Running
LHSI/RHRPump
Stopped
LHSIPumpRoomTEMP
[1]
LHSI PumpRoomTEMP
[2]
MHSIPump
Stopped
MHSIPump
Running
REV 005EPR3518 T2
(Figure 7.3-2)SIS Actuation
Tier 2 Revision 5 Page 7.3-109
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-47—SBVS CCWS / EFWS Valve Rooms Heat Removal
Division 1 Division 2 Division 3 Division 4
Same as Division 1
RoomTEMP
[2]
< Min1p> Max1p
RoomTEMP
[1]
< Min1p> Max1p
OR OR
RoomTEMP
[2]
RoomTEMP
[1]
REV 005EPR3520 T2
OFFON
Recirculation Fan
OFFON
Recirculation Fan
OFFON
Recirculation Fan
OFFON
Recirculation Fan
Same as Division 1
RoomTEMP
[2]
RoomTEMP
[1]
Same as Division 1
RoomTEMP
[2]
RoomTEMP
[1]
max min max min
Tier 2 Revision 5 Page 7.3-110
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-48—SBVSE Supply and Recirculation-Exhaust Air Flow Control
< Min1pminmax
> Max1p
S R S R S R
Outside Air Damper Position
OPEN
Outside Air Damper Position
CLOSEExhaust Damper Position
OPENExhaust Damper Position
CLOSE
&
Recirculation Damper Position OPEN
Recirculation Damper Position CLOSE
&
OPEN CLOSE OPEN CLOSE OPEN CLOSE
OR
Close Minimum Open Minimum
& &
Close MinimumOpen
Minimum
OR
& &
Close Minimum Open Minimum
OR
OR
max> Max2p
Supply AirDownstream of Heaters
TEMP
Outside AirTEMP
[2]
min< Min1p
Division 1The same logic is implemented for Divisions 2,3,& 4
EPR3522 T2
Supply Air Downstream of Heaters
TEMP
Outside Air Damper Exhaust Damper Recirculation Damper
max> Max2p
Outside AirTEMP
[1]
max> Max2p
Protective Switch-off
TEMP
Tier 2 Revision 5 Page 7.3-111
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-49—SBVSE Supply Fan Safe Shut-Off
Division 1 Division 2 Division 3 Division 4
Same as Division 1
Recirc/ExhaustAir Fan
STOPPED
Recirc/Exhaust Air Fan
STOPPED
Outside Air Damper Position
CLOSED
Recirculation Damper Position
CLOSED
Outside Air Damper Position
CLOSED
Recirculation Damper Position
CLOSED
Stop Supply Fan Stop Supply Fan Stop Supply Fan Stop Recirc/Exhaust Fan
&
OR
Same as Division 1Same as Division 1
Recirc/Exhaust Air Fan
STOPPED
Outside Air Damper Position
CLOSED
Recirculation Damper Position
CLOSED
Recirc/Exhaust Air Fan
STOPPED
Outside Air Damper Position
CLOSED
Recirculation Damper Position
CLOSED
REV 005EPR3524 T2
Tier 2 Revision 5 Page 7.3-112
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-50—SBVSE Recirculation Fan Safe Shut-Off
Division 1 Division 2 Division 3 Division 4
Component Cooling Water Pump Room
TEMP[1]
EPR3526 T2
Recirculation Fan
OnOff
Component Cooling Water Pump Room
TEMP[2]
max< Min1p > Max1p< Min1p
OROR
minmin max> Max1p
Same as Division 1
Recirculation Fan
OnOff
Same as Division 1 Same as Division 1
Emergency Feedwater
Pump Room TEMP
[2]
Emergency Feedwater
Pump Room TEMP
[1]
max< Min1p > Max1p< Min1p
OROR
minmin max> Max1p
OnOff
Recirculation Fan
Component Cooling Water Pump Room
TEMP[1]
Component Cooling Water Pump Room
TEMP[2]
Emergency Feedwater
Pump Room TEMP
[2]
Emergency Feedwater
Pump Room TEMP
[1]
Component Cooling Water Pump Room
TEMP[1]
Component Cooling Water Pump Room
TEMP[2]
Emergency Feedwater
Pump Room TEMP
[2]
Emergency Feedwater
Pump Room TEMP
[1]
Component Cooling Water Pump Room
TEMP[1]
Component Cooling Water Pump Room
TEMP[2]
Emergency Feedwater
Pump Room TEMP
[2]
Emergency Feedwater
Pump Room TEMP
[1]
Recirculation Fan
OnOff
Recirculation Fan
OnOff
Recirculation Fan
OnOff
Recirculation Fan
OnOff
Recirculation Fan
OnOff
Tier 2 Revision 5 Page 7.3-113
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-51—SBVSE Exhaust Fan Safe Shut-Off
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
EPR3528 T2
Exhaust Damper PositionCLOSED
Exhaust Damper PositionCLOSED
Exhaust Damper PositionCLOSED
Exhaust Damper PositionCLOSED
Stop Exhaust Fan Stop Exhaust Fan Stop Exhaust Fan Stop Exhaust Fan
Tier 2 Revision 5 Page 7.3-114
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-52—SBVSE Supply Air Temperature Heater Control
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
Supply Air Downstream of Heaters
TEMP
max> Max1p
Supply Air Downstream of Heaters
TEMP
OnOff
Supply Air Heater
Supply AirDownstream of Heaters
TEMP
< Min1pmin
Supply Air Downstream of Heaters
TEMP
OnOff
Supply Air Heater
OnOff
Supply Air Heater
OnOff
Supply Air Heater
Filter BankDIFF PRESS
< Min1pmin
OR
Filter BankDIFF PRESS
Supply Air Downstream of Heaters
TEMP
Supply Air Downstream of Heaters
TEMP Filter Bank
DIFF PRESS
Supply Air Downstream of Heaters
TEMP
Supply Air Downstream of Heaters
TEMP Filter Bank
DIFF PRESS
Tier 2 Revision 5 Page 7.3-115
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-53—SBVSE Freeze Protection
REV 005EPR3532 T2
Division 1 Division 2 Division 3 Division 4
Same as Division 1
Outside AirTEMP
[2]
< Min1p > Max1p
Outside AirTEMP
[1]
< Min1p > Max1p
OR OR
Outside AirTEMP
[2]
Outside AirTEMP
[1]
Same as Division 1
Outside AirTEMP
[2]
Outside AirTEMP
[1]
Same as Division 1
Outside AirTEMP
[2]
Outside AirTEMP
[1]
maxmin maxmin
OFFON
Heat Tracing Heater
OFFON
Heat Tracing Heater
OFFON
Heat Tracing Heater
OFFON
Heat Tracing Heater
Tier 2 Revision 5 Page 7.3-116
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-54—SBVSE Supply Air Temperature Control for Supply Air Cooling
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
Supply Air Downstream Of Humidifier
TEMP
PI
Close Open
OpenClose
+
-
Setpoint
OpenCloseOpenCloseOpenClose
EPR3534 T2
Safety Chilled Water Outlet Regulating Valve
Safety Chilled Water Outlet Regulating Valve
Safety Chilled Water Outlet Regulating Valve
Safety Chilled Water Outlet Regulating Valve
Supply Air Downstream Of Humidifier
TEMP
Supply Air Downstream Of Humidifier
TEMP
Supply Air Downstream Of Humidifier
TEMP
Tier 2 Revision 5 Page 7.3-117
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-55—Deleted
Tier 2 Revision 5 Page 7.3-118
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-56—SBVSE Battery Room Heater Control
Division 1 Division 2 Division 3 Division 4
Same as Division 2 Same as Division 1
Battery Room TEMP
Battery Room TEMP
Battery Room TEMPBattery Room
TEMP
< Min1pmin max
> Max1p
Battery Room TEMP
< Min1pmin max
> Max1p < Min1pmin max
> Max1p
Battery Room TEMP
EPR3538 T2
Supply Air Downstream of HeatersFLOW
Supply Air Downstreamof Heaters
FLOW
< Min1pmin
< Min1pmin
OR OR OR
Supply Air Downstream of Heaters
FLOW
< Min1pmin
Supply Air Downstream of Heaters
FLOW
Supply AirDownstreamof Heaters
FLOW
Supply AirDownstreamof Heaters
FLOW
Battery Room Heater
OffOn
Battery Room Heater
OffOn
Battery Room Heater
OffOn
Battery Room Heater
OffOn
Battery Room Heater
OffOn
Battery Room Heater
OffOn
Tier 2 Revision 5 Page 7.3-119
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-57—SBVSE Battery Room Supply Air Temperature Control
Division 1 Division 2 Division 3 Division 4
Same as Division 2 Same as Division 1
Supply Air to BatteryRoom TEMP
Supply Air to BatteryRoom TEMP
Supply Air to BatteryRoom TEMP
Supply Air to Battery Room TEMP
> Max1p max> Max1p
Supply Air to BatteryRoom TEMP
max
Supply Air to BatteryRoom TEMP
max> Max1p
EPR3540 T2
Battery Room Heater Off
Battery Room Heater Off
Battery Room Heater Off
Battery Room Heater Off
Battery Room Heater Off
Battery Room Heater Off
Tier 2 Revision 5 Page 7.3-120
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-58—SBVSE EFWS Pump Room Heat Removal
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
Pump Room TEMP
[2]
< Min1pmin
OnOff
max> Max1p
OnOff OnOff OnOff
EPR3542 T2
Pump Room TEMP
[2]
EFWS Pump Room Recirculation Cooler Fan
EFWS Pump Room Recirculation Cooler Fan
EFWS Pump Room Recirculation Cooler Fan
EFWS Pump Room Recirculation Cooler Fan
< Min1pmin max
> Max1p
Pump Room TEMP
[1]
OROR
Pump Room TEMP
[1]
Pump Room TEMP
[2]
Pump Room TEMP
[1]
Pump Room TEMP
[2]
Pump Room TEMP
[1]
Tier 2 Revision 5 Page 7.3-121
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-59—SBVSE CCWS Pump Room Heat Removal
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
ONOFF ONOFF ONOFF ONOFF
EPR3544 T2
CCWS Pump Room Recirculation Cooler Fan
CCWS Pump Room Recirculation Cooler Fan
CCWS Pump Room Recirculation Cooler Fan
CCWS Pump Room Recirculation Cooler Fan
Pump Room TEMP
[2]
< Min1pmin max
> Max1p< Min1pmin max
> Max1p
Pump Room TEMP
[1]
OROR
Pump Room TEMP
[2]
Pump Room TEMP
[1]
Pump Room TEMP
[2]
Pump Room TEMP
[1]
Pump Room TEMP
[2]
Pump Room TEMP
[1]
Tier 2 Revision 5 Page 7.3-122
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-60—SIS / RHRS Automatic RHRS Flow Rate Control
Division 1
Average
+-
Setpoint
RHRS Train 1 Temperature
RHRS Pump Discharge Train 1
Pressure
Density(Based on RHRS Pump Discharge Pressure and
RHRS Temperature)
Division 2 Division 3 Division 4
RHRS Train 1 Flow Rate [1]
RHRS Train 1 Flow Rate [2]
&
PI
Close Open
&
Manual Flow Rate
Control
RA
xy(x)*(y)
Same as Division 1 Same as Division 1 Same as Division 1
RHRS Train 2 Temperature
RHRS Pump Discharge Train 2
Pressure RHRS Train 2 Flow Rate [1]
RHRS Train 2 Flow Rate [2]
RHRS Train 3 Temperature
RHRS Pump Discharge Train 3
Pressure RHRS Train 3 Flow Rate [1]
RHRS Train 3 Flow Rate [2]
RHRS Train 4 Temperature
RHRS Pump Discharge Train 4
Pressure RHRS Train 4 Flow Rate [1]
RHRS Train 4 Flow Rate [2]
RHRS Heat Exchanger Bypass Control Valve Train 1
OpenClose
RHRS Heat Exchanger Bypass Control Valve Train 2
OpenClose
RHRS Heat Exchanger Bypass Control Valve Train 3
OpenClose
RHRS Heat Exchanger Bypass Control Valve Train 4
OpenClose
REV 005EPR3554 T2
Tier 2 Revision 5 Page 7.3-123
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-61—Deleted
Tier 2 Revision 5 Page 7.3-124
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-62—Isolation of FBVS on Containment Isolation
Same as Division 1
Division 1 Division 2 Division 3 Division 4
Same as Division 1 Same as Division 1
Containment Isolation Signal from the
Protection System
EPR3565 T2
CLOSE-Air Supply Dampers-Exhaust Dampers
Containment Isolation Signal from the
Protection System
Containment Isolation Signal from the
Protection System
Containment Isolation Signal from the
Protection System
CLOSE-Air Supply Dampers-Exhaust Dampers
CLOSE-Air Supply Dampers-Exhaust Dampers
CLOSE-Air Supply Dampers-Exhaust Dampers
Tier 2 Revision 5 Page 7.3-125
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-63—Deleted
Figure 7.3-64—Deleted
Tier 2 Revision 5 Page 7.3-126
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-65—SBVS Isolation of Mechanical Areas of Safeguard Building on Containment Isolation
Division 1 Division 4Division 2 Division 3
CLOSE- Supply Dampers- Exhaust DampersOPEN- Dampers - Isolation DampersSTART- Iodine Filtration Train
CLOSE- Supply Dampers- Exhaust DampersOPEN- Dampers
CLOSE- Supply Dampers- Exhaust DampersOPEN- Dampers
CLOSE- Supply Dampers- Exhaust DampersOPEN- Dampers - Isolation DampersSTART- Iodine Filtration Train
Same as Division 1
Containment Isolation Signal from the
Protection System
Containment Isolation Signal from the
Protection System
Same as Division 1 Same as Division 1
Containment Isolation Signal from the
Protection System
Containment Isolation Signal from the
Protection System
EPR3572 T2
Tier 2 Revision 5 Page 7.3-127
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-66—SBVS Iodine Filtration Train Electric Heater Control
Division 1 Division 4
Same as Division 1
> Max2p
Downstream TEMP 1
> Max1pmax&
&
IsolationDampers Open 2
Isolation Dampers Open 1
Heater FanRunning
2.75 kW Electrical Heater
OnOff
8.25 kW Electrical Heater
OnOff
2.75 kW Electrical Heater
OnOff
8.25 kW Electrical Heater
OnOff
max
EPR3573 T2
Downstream TEMP 2
Downstream TEMP 1 Isolation
Dampers Open 2Isolation
Dampers Open 1Heater Fan
Running
Downstream TEMP 2
Tier 2 Revision 5 Page 7.3-128
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-67—FBVS Isolation of the Fuel Pool Room
Division 1 Division 4
Same as Division 1
CLOSE- Supply Damper- Exhaust Damper
CLOSE- Supply Damper- Exhaust Damper
OR
Fuel Pool Temperature
Fuel Pool Room Activity
max max
Fuel Pool Temperature
Fuel Pool Room Activity
EPR3574 T2
Tier 2 Revision 5 Page 7.3-129
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-68—FBVS Isolation of the Emergency Airlock and Equipment Hatch
Division 1 Division 4
Same as Division 1
CLOSE- Emergency Airlock Area Supply Damper- Emergency Airlock Area Exhaust Damper- Fuel Handling Hall Supply Damper- Fuel Handling Hall Exhaust Damper
CLOSE- Emergency Airlock Area Supply Damper- Emergency Airlock Area Exhaust Damper- Fuel Handling Hall Supply Damper- Fuel Handling Hall Exhaust Damper
Reactor Building Activity
max
Reactor Building Activity
EPR3576 T2
Tier 2 Revision 5 Page 7.3-130
U.S. EPR FINAL SAFETY ANALYSIS REPORT
Figure 7.3-69—ESWS Flood Prevention in the Safeguard Building
Division 1 Division 4
Same as Division 1
> Max3p
Train 1 SUMP LEVEL
max
Same as Division 1Same as Division 1
- Close Train 1 ESWS Pump Discharge Isolation
Valve
- Stop Train 1 ESWS Pump
Division 2 Division 3
- Close Train 3 ESWS Pump Discharge Isolation
Valve
- Stop Train 3 ESWS Pump
Train 3SUMP LEVEL
- Close Train 2 ESWS Pump Discharge Isolation
Valve
- Stop Train 2 ESWS Pump
Train 2SUMP LEVEL
- Close Train 4 ESWS Pump Discharge Isolation
Valve
- Stop Train 4 ESWS Pump
Train 4SUMP LEVEL
EPR3577 T2
Tier 2 Revision 5 Page 7.3-131
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