1
Q
Describe the containment vacuum system lineup when it is being used to remove hydrogen from containment during an accident.
A
one vacuum pump uses the normal flow path and other vacuum pump is lined up to supply air to containment from the AB
2
Q
Which of the following statements describe uses of the containment vacuum system?
A
draw initial containment vacuum prior to S/U
maintain sub-atmospheric pressure in CTMT during normal ops
provide B/U means of removing combustible gases from CTMT following a LOCA
3
Q
Why must the CTMT air ejector be removed form service prior to the plant reaching Mode 4?
A
air ejector CTMT suction isolations are boundary valves and must be locked closed
