AOP-36, Loss of Component Cooling

Question 1

What is the purpose of AOP-36, Loss of Component Cooling Water?

Answer 1

Does NOT address loss of cooling which is loss of SW. This addresses loss of fluid or flow.

Question 2

What are the Entry Conditions for AOP-36?

Answer 2

• T-3, CCW Surge Tank level lowering and not being recovered
• CCW cooled components indicate degraded cooling
• EK-1169, “COMPONENT CLG PUMP DISCHARGE LO PRESS” (80 psig)

Question 3

What are the automatic actions of AOP-36, Loss of CCW?

Answer 3

Standby pump starts at 80 psig.

Question 4

What are the trip criteria of AOP-36, Loss of CCW?

Answer 4

• CCW flow to Containment lost for greater than 10 minutes
• Failure to restore a Component Cooling Water Pump to service

Question 5

What are the immediate actions of AOP-36, Loss of CCW?

Answer 5

None

Question 6

What inventory is needed in T-3, CCW Surge Tank, for pump operation?

Answer 6

Greater than 47%

Question 7

What and where are the temperature indications checked for components cooled by CCW?

Answer 7

• PCP Seal temperatures
  
  • LTVR-0901 on Panel EC-11
• TIC-0203, Low Pressure Letdown Flow Temp Control
  
  • • TIA-0931, TIA-0933, Reactor Shield Cooling Coil Outlet Temps
• FI-0971, FI-0972, FI-0973, Comp Clg Wtr Outlet Flow Charging PPs
• TI-0912, TI-0913, Shutdown Heat Exchanger Outlet Temp (if in service)