Consideration of External Hazards in Probabilistic Safety Assessment for Single Unit and Multi-unit Nuclear Power Plants

This publication outlines the generic methodology for probabilistic safety assessment of nuclear power plants against external hazards. It integrates design, procedural, operational and human factors, and both protection and mitigation aspects that are essential for modelling a nuclear power plant response to an external hazard and to assess the associated risk. It specifically addresses the identification and screening of external hazards considering the impact on multi-unit plants.