scope:

This Safety Guide addresses the necessary technical features of a Level 1 PSA and applications for nuclear power plants, on the basis of internationally recognized good practices. The scope of a Level 1 PSA addressed in this Safety Guide includes all operational conditions of the plant (i.e. full power, low power and shutdown) and all potential initiating events and potential hazards, namely: (a) internal initiating events caused by random component failures and human error, (b) internal hazards (e.g. internal fires and floods, turbine missiles) and (c) external hazards, both natural (e.g. earthquake, high winds, external floods) and of human-induced (e.g. airplane crash, accidents at nearby industrial facilities).