Tech Specs Section 2 - .5

Question 1

What safety limit is imposed to protect the fuel cladding integrity?

Answer 1

with pressure <785# or core flow <10% do not exceed 24% thermal power

Question 2

What is the MCPR limit and when is it applicable?

Answer 2

MCPR >1.07 (1.10 for SLO) when >585# or >10% core flow

Question 3

What is the steam dome pressure limit and what actions do you need to take if it is exceeded?

Answer 3

Maintain <1325# steam dome pressure (opcon 1, 2, 3, 4)
110% of rated 1250psi
Be in HOT SHUTDOWN and return below 1325# within 2 hours

Question 4

What is the level safety limit when in opcons 3, 4 or 5?

Answer 4

Maintain TAF
Applies only for the removal of decay heat while shutdown

Question 5

What is the purpose of safety limits?

Answer 5

to protect fuel cladding such that if you stay in these parameters, fuel damage will not happen

Question 6

If you violate safety limits what action must you take and how quickly must you take it?

Answer 6

notification to the NRC within 30 days
and to be in HOT SHUTDOWN in 2 hours, and to restore the parameter to normal immediately

Question 7

What is the maximum peak fuel enthalpy allowed?

Answer 7

the maximum insequence individual control rod or control rod segments which are withdrawn at any time during the fuel cycle could not be worth enough to result in peak fuel enthalpy greater than 280 cal/gm in the even of a control rod drop accident(any fuel rod that exceeds 170 cal/gm is considered failed