Development and Application of Level 1 Probabilistic Safety Assessment for Nuclear Power Plants Specific Safety Guide: IAEA Safety Standards Series No. Ssg-3 (Electronic book text)

The objective of this Safety Guide is to provide recommendations for meeting the IAEA safety requirements in performing or managing a level 1 probabilistic safety assessment (PSA) project for a nuclear power plant. These recommendations promote technical consistency among level 1 PSA studies and support applications of PSA and risk informed decision making. The Safety Guides scope encompasses all operational conditions of the plant and potential initiating events and hazards.Contents: 1. Introduction; 2. General considerations relating to the performance and use of PSA; 3. Project management and organization for PSA; 4. Familiarization with the plant and collection of information; 5. Level 1 PSA for internal initiating events for full power operating conditions; 6. General methodology for level 1 PSA for internal and external hazards; 7. Specifics of level 1 PSA for internal hazards; 8. Specifics of level 1 PSA for external hazards; 9. Level 1 PSA for low power and shutdown modes; 10. Use and applications of the PSA; References; Annex I: Example of a generic list of internal and external hazards; Annex II: Examples of fire propagation event trees and seismic event trees; Annex III: Supporting information on PSA for low power and shutdown modes.