Document: NUREG-0800
Document ID: e32f0820-4e33-476e-aa36-4ca8c2c64af0
Document Type: srp
Title: Use of Probabilistic Risk Assessment in Plant-Specific, Risk-Informed Decisionmaking:
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0119/ML011940192.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
on change equipment qualification to the point where it affects timing of equipment failure relative to containment failure? Does the application affect core debris path to the sump / suppression pool or to the other portions of the containment? Do the selected source term categories adequately represent the revised containment event tree (CET) endpoints? Are CET endpoint frequercies changed enough to affect the selection of the dominant/representative sequence(s) in the source term binning :process? Does the application affect the timing of release of radionuclides into the environment relative to the initiation of core melt and relative to the time for vessel rupture? LEVEL 3 (CONSEQUENCE ANALYSIS) * Does the application necessitate detailed evacuee doses? * Are individual doses at specific locations needed for this application? * Is evacuation or sheltering being considered as a mitigation measure? * Are long-term doses a corsideration in this application? EXTERNAL EVENTS PRA * Does the application introduce external hazards not previously evaluated? * Does the application inciease the intensity of existing hazards significantly? • Are design changes modifying the structural response of the plant being considered? * Does the change impact the availability and performance of necessary mitigation systems for an external hazard? * Does the application significantly modify the inputs to the plant model conditioned on the external event? * Are changes being requeslted for systems designed to mitigate against specific external events? * Does the application involve availability and performance of containment systems under the external hazard? LOW POWER and SHUTDOWN PRA * Does the application introduce new initiating events or change the frequencies of existing events? * Does the application affect the scheduling of outage activities? * Does the application affEct the ability of the operator to respond to shutdown events? * Does the application affec the reliability