SA/IA

Question 1

State when SA-V-92/93 close and when they can open

Answer 1

Close at 90#

can manually open at 95#

Question 2

State Lead Lag SA compressor setpoints

Answer 2

LEAD: 115 - 125#
LAG: 110 - 120#

Question 3

State SA compressor response on LOP

Answer 3

SA-C-A and B will restart at step 9 of EPS

Question 4

State Sullair compressor response on LOP

Answer 4

Will start if SA header pressure dips below 100#

Question 5

State how to reset Containment Air compressor

Answer 5

Local push button
OR
Cycling the breaker at MCC-531/631

Question 6

Discuss how the ring headers are protected

Answer 6

Isolation valves and check valves ensures separation

Question 7

State MCB indication for compressed air

Answer 7

IA-V-530 CS
SA-V-92/93 CS
Containment air compressors CS
IA/SA/Containment Air Pressures

Question 8

State what loads have backup N2

Answer 8

EFW turbine Steam supply valves
ASDVs
PCCW TCV and HX Bypass

Question 9

State impact of loss of IA

Answer 9

ON1242.01 addresses this

• Need to manually start compressors
• Isolate SA
• Rx trip and RCP shutdown

Question 10

State what closes IA-V-530

Answer 10

Fails closed on LOP and T-signal

Question 11

State what’s used for loss of containment IA

Answer 11

ON1242.02

Open IA-V-530