3.7 Flashcards
1
Q
3.7.1 Main Steam Safety Valves
A
Modes 1,2,3
1-4 per SG INOP in M1/2 = reduce power and VOPT trip in 4 hours/36 hours
5-8 per SG INOP in M1/2 = M3 in 6
> 8 per SG INOP in any mode = M3 in 6 AND M4 in 12 hours
2
Q
3.7.1 Main Steam Safety Valves
Lift Settings
A
1 - 1250 psig
2 - 1290 psig
3 - 1315 psig
4 - 1315 psig
5 - 1315 psig
+/- 3%
3
Q
3.7.2 Main Steam Isolation Valves
LCO and applicability
A
M1
M2-4, except when all MSIVs are closed and deactivated
4 MSIVs and their associated actuator trains
4
Q
3.7.2 Main Steam Isolation Valves
Conditions
A
1 MSIV INOP = 4 hours to restore
2 or more INOP = 1 hour to restore all but one
Time not met = M2 in 6 hours
