CAH

Question 1

State CAH response of loss of PCCW

Answer 1

CAH cooling fans trip

Question 2

State how CAH fans respond on LOP

Answer 2

CAH fans restart at step 3 of EPS assuming no SI or P signal

- fans will trip if CC doesn’t start on next step of EPS

Question 3

State CRDM fan response to P signal

Answer 3

Fans will trip

Question 4

State start permissive for CAP-FN-35

Answer 4

RM-6535 must not be in alert in order to start

Question 5

State CVI actuation signals

Answer 5

SI
Manual Phase A
Manual Phase B
Hi rad signals on COP monitors
Hi rad signal on refueling bridge monitors

Question 6

State what CVI will not affect

Answer 6

Refueling Purge Exhaust fan (CAP-FN-35)
RCA Supply Fan 179
CAP Fan 10

Question 7

State how CVI will affect CAP

Answer 7

Closes CAP valves CAP-V-1, 2, 3, & 4 and prevents opening
(1 & 4 A train, 2 & 3 B train)
Trips Pre-entry Purge Supply fan (CAP-FN- 9) and Refueling Purge Supply fan (CAP-FN-34).
Prevents fan start
A train only
No input from B train CVI

Question 8

State how CVI will affect COP

Answer 8

Trips COP Supply fan FN-73 and prevents start
A train only
No input from B train CVI
Closes COP V-1, 2, 3, & 4 and prevents opening
(V1 & 4 A train, V2 & 3 B train)

Question 9

State CAP-FN-35 response to refueling bridge Rad Monitor alarms

Answer 9

Alert:

• Prevents fan start
• will not trip the fan