With what frequency is it expected that events will occur that require entering EOP series procedures
- 10^-8 events per reactor year
When is foldout page guidance applicable
- Any time that procedure is in effect
What conditions requiring using adverse containment criteria
- Containment pressure greater than 5 psig
- Radiation dose rates greater than 10^5 (100,000) R/hr
- During an ELAP when Pzr or SG doghouse temperatures are greater than 196.8 deg F
When can you quit using adverse containment values
- When containment pressure lowers to less than 5 psig
- If dose rates lower below 10^5 (100,000) R/hr and total accumulated dose is less than 10^6 (1,000,000) Rem
- During an ELAP when Pzr or SG doghouse temperatures lower to less than 196.8 deg F
For EOP steps with multiple substeps, in which order can the substeps be performed
- If the substeps are preceeded by a letter/number then they must be performed in order.
- If the substeps are bulleted then they may be performed in any order
If a contingency action cannot be performed what is the crew supposed to do
- Proceed to the next step/sub-step
What is the order of priority for Critical Safety Functions
- (S) Subcriticality
- (C) Core Cooling
- (H) Heat Sink
- (P) Integrity
- (Z) Containment
- (I) Inventory
When is continuous monitoring of a Critical Safety Function required
- When a Red (Extreme Challenge) or Orange (Severe Challenge) path is present
At what periodicity are Yellow (Not Satisfied) and Green (Satisfied) Critical Safety Functions required to be monitored
- Every 10-20 minutes
Given an ORANGE Subcriticality path and a RED Heat Sink path, which FRP would be entered first and why?
- FRH series then FRS if the ORANGE path is still present
- RED before ORANGE, Highest to Lowest Priority
What are the fission product barriers
- Fuel Cladding
- RCS Pressure Boundary
- Containment
As RCS pressure lowers, what happens to break flow
- Break flow lowers
How does a lowering Tave affect break flow from density effect
- Density rises, more mass flows out the break
How does a lowering Tave affect break flow from the Choke Flow effect
- Break flow flashes to steam further from the break, which lowers back pressure at the break, causing break flow to rise
What are the methods of heat removal available on the Primary (RCS) side
- ECCS flow
- Break Flow
What are the methods of heat removal available on the Secondary (SG) side
- AFW
- Steam Generators
What are the effects of “Uncovering the Break”
- Rapid Depressurization
- Energy Removal (latent heat of evaporization)
- Break flow is reduced
- ECCS flow is raised
Where is the worst location to have a SBLOCA and why
- Cold Leg
- It requires more mass to be lost before the break is uncovered because the cross under loop seal must be cleared
What indications are consistent with a Faulted Steam Generator (E-2)
- Tave Lowering
- Rx Power Rising
- SF>FF
- Turbine Load Lowering
- Pzr Pressure Lowering
- Pzr Level Lowering
What indications are consistent with a Ruptured Steam Generator (E-3)
- Secondary Rad monitors (SJAE/Gland Steam)
- SG Level rising
- Pzr Pressure Lowering
- Pzr Level Lowering
What indications are consistent with a LOCA (E-1)
- Containment Radiation Monitors
- Pzr Pressure Lowering
- Pzr Level Lowering
- Containment Pressure Rising
- Containment Sump Levels
- Containmetn Dew Point Rising
What are the SI termination criteria
- Subcooling greater than 40 deg F
- SG NR lvl greater than 13% OR AFW flow greater than 240K pph
- RCS Pressure stable or rising
- Pzr Level greater than 16% (20%) OR {28% (24%) ADVERSE}
What are the EOP RCP trip Fold Out Page criteria
- Phase B
- RCS pressure less than 1300 # AND 1 CCP or SI pp running
What are the AFW switchover Fold Out Page criteria
- CST level less than 15%
