L-6 Flashcards
1
Q
What is the order of Nozzle dam installation?
What must be done before the last nozzle dam is installed?
A
last nozzle dam installed must be a HOT LEG (ensures hot leg vent path always available)
- shift forman permission
- vessel head fully de-tensioned
2
Q
When must Containment Closure be established?
when must Containment Closure Capability be establised?
A
closure
- rcs not intact AND
- fuel in vessel AND
- time to boil < 20 min OR
- time to boil < time to achieve closure
capability
- rcs not intact AND
- fuel in vessel AND
- time to boil > 20 min and
- time to boil > time to achiev closure
3
Q
What is level vessel is not allowed to exceed once the head is detensioned?
Why?
A
114’ (vessel flange)
if level touches flange o-ring cleanliness is compromised and MM must be contacted to evaluate
