F-0 (CSFST)

Question 1

F-0

What procedures do you not monitor the CSFST’s?

Answer 1

E-0, until step 20 or xtn out

ECA-0.0, no power to fix anything

E-1.3, cold leg recirc most important

ECA-1.3, never leave sump blockage

Question 2

F-0

1. Once a FRG is entered can you stop if condition clears?
2. If you are in a magenta FRG and a red path appears, what do you do?
3. If original magenta FRG clears before you finnish red path, once you complete red path do you have to complete original procedure?
4. If a red path appears and clears before you enter it, must you enter/complete procedure?

Answer 2

1. No, once procedure is started, it must be completed
2. immediately stop and go to red path
3. yes, once you start FRG, you must finnish it
4. No, if you did not enter procedure, you dont have to

Question 3

F-0

When must the CSFST’s be monitored continuously?

If not being monitored continuously, how often should they be monitored?

Answer 3

When plant conditions are changing rapidly OR a red or magenta path exists.

every 10-20 minutes

Question 4

F-0

What are the conditions that can get you into a red path for Subcriticality?

Magenta path?

Answer 4

Red - Pwr > 5 %

Magenta - IR SUR > 0

Question 5

F-0

What are the conditions that will get you into a Red path on Core Cooling?

Magenta Path?

Answer 5

Red

• CET > 1200 deg F
• CET > 700 deg F AND
  
  • RVLIS (full) < 32% AND
  • no RCPs running AND
  • subcooling < 20 deg F

Magenta

• CET > 700 deg F AND
  
  • RVLIS (full) > 32% AND
  • no RCPs running AND
  • subcooling < 20 deg F
• CET < 700 deg F AND
  
  • RVLIS (full) < 32% AND
  • no RCPs running AND
  • subcooling < 20 deg F
• Subcooling < 20 deg F
  
  • a RCP running
  • RVLIS dynamic head
    
    • < 44% - 4 RCPs
    • < 30% - 3 RCPs
    • < 20% - 2 RCPs
    • < 14% - 1 RCP

Question 6

F-0

What are the conditions that will get you into a Red path on Heat Sink?

Magenta Path?

Answer 6

RED

• All L _s/g < 15% AND
• Total F_afw < 435 gpm

Magenta

• none

Question 7

F-0

What are the conditions that will get you into a Red path on Integrity?

Magenta Path?

Answer 7

RED

• all T_c / Press to left of graph (< 280 deg F)

Magenta

• any T_c < 280 deg F

Question 8

F-0

What are the conditions that will get you into a Red path on Containment?

Magenta Path?

Answer 8

RED

• P_cnmt > 47 psig

Magenta

• L_{cnmt smp} > 94 ft
• Pcnmt > 22 psig AND
  
  • no Spray pumps on