Integrated Safeguards

Question 1

State Containment DBA

Answer 1

Double ended break of RCP piping
One CBS train Fails to start
One EDG fails to start
52# max calculated containment pressure

Question 2

State other action of P-11

Answer 2

Blocking P-11 will block MS low steam line pressure (585#) SI
AND
Enables Steam Line Pressure rate hi MSI (100# for 50 sec)

Question 3

State what a “Dual Function” valve means

Answer 3

Dual Function valves are valves that comply with more than 1 T.S. and compliance with one will mean non-compliance with the other T.S.
See OPMM for guidance

Question 4

List the Five Major categories of ESF

Answer 4

Containment systems
ECCS
Habitability systems
Fission product removal and control systems
EFW

Question 5

List the 4 Subsystems that are part of the Containment system

Answer 5

Primary containment and enclosure structures
Containment heat removal systems
Containment isolation systems
Combustible gas control systems

Question 6

State plant response to SI

Answer 6

RX trip
ECCS actuation
EFW
CBA goes to filter recir mode
EDG start
Phase A isolation
CVI
FWI
Turbine trip
MFP trip

Question 7

State plant response to Phase A

Answer 7

Isolation of non containment
CVI
Electrical penetration sump pump trips
Initiates CC to RHR HX
EAH to emergency mode
starts EAH fans
Isolates IA to Containment

Question 8

State plant response to Phase B

Answer 8

Isolates CC to containment (not thermal barrier)
Opens CC to CBS HX
Trips CRDM cooling fans
Starts CAH-FN-3A/B in recirculation mode

Question 9

State plant response to CVI

Answer 9

Trips Make up fans (27 A/B)
Closes Make up fans dampers (53 A/B)
Opens DP-27A/B
which starts FN-16A/B
Exhaust FN-15 Trips
Exhaust dampers (28/1058) close