Document: NUREG-0800
Document ID: 817bb0ad-6fd7-433e-aa2b-b4b3e1166f9c
Document Type: srp
Title: PROBABILISTIC RISK ASSESSMENT AND SEVERE ACCIDENT EVALUATION FOR
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0717/ML071700652.pdf
Revision Date: 2023-06
Chapter: 19
Section ID: 19.0
CFR Part: 
CFR Title: 

Content:
chanisms involving the periodic evaluation of the PRA on the basis of actual plant-specific equipment, train, and system performance and relevant industry operational experience. Review Interfaces All technical branches may use the applicant’s PRA results and insights in determining the appropriate scope and depth of their technical review. In addition, the QA staff will use the PRA results and insights in reviewing the applicant’s RAP. Therefore, the PRA reviewers should also evaluate the following aspects: 1. Probabilistic and other risk assessment methods used for identifying and prioritizing SSCs based on risk significance 19.0-5 Revision 2 - June 2007 2. The SSCs that are determined by probabilistic and other risk assessment methods to be significant contributors to plant safety 3. The industry operating experience and reliability databases used to identify the significant failure modes Other technical branches that use the PRA and severe accident evaluation results and insights in their programs, processes, and reviews (e.g., human factors, training, and inspection organizations for addressing significant human actions; emergency preparedness; security; reactor oversight processes; technical specifications; RTNSS; maintenance rule implementation) may need to interface with the PRA staff in evaluating these programs, processes, and reviews. The technical branches that are responsible for the review of the design of the plant for external events, including external hazards (e.g., seismic, tornado, high wind, and external fire and flood) and in-plant area hazards (e.g., internal fire and flood) may need to support the PRA staff in reviewing these hazards. For example, the technical branch responsible for reviewing the seismic capacity/fragility of SSCs and the site-specific seismic hazard may need to review these aspects of the seismic risk analyses. The technical branches that perform the systems and T-H analyses may need to interface with the PRA staff