Si and Blackout Sequencer Flashcards
1
Q
SI pump A/C and B if racked in
A
- 5 seconds
- SI signal
2
Q
RHR pump A/B
A
- 15 seconds
- SI Signal
3
Q
SW pump A/C
A
- 20 seconds
- Both
4
Q
SW booster pumps A/B
A
- After a SW pump starts for SI signal
- After 30psi for blackout signal
5
Q
SW pump B/D
A
- 25 seconds
- Both
6
Q
HVH-1/3
A
- 30 seconds
- SI signal
7
Q
HVH-2/4
A
- 35 seconds
- SI signal
8
Q
AF pump A/B
A
- 39.5 seconds
- Both
9
Q
CCW pump B/C
A
- 30 seconds
- Only Blackout.
- Also remember that a SI signal will override a blackout signal so unless 30 seconds have passed, they will not start.
10
Q
Which signal over-rides the other?
A
-SI signal will override a Blackout signal
11
Q
10psig CV spray signal would also do?
A
- Main Steam Isolation
- Phase B
- CV spray
