Advanced Methods for Screening in Fire PSA

摘要

Fire PSA is part of the comprehensive safety reviews to be mandatory performed in several steps since 2002 for nuclear power plants in Germany at a time interval of ten years. In the recent technical document on PSA methods supporting the German PSA Guideline an advanced screening approach is outlined. This method has meanwhile been successfully applied in the frame of a Fire PSA for a German boiling water reactor plant for full power operation states.This paper presents the Fire PSA methodology using the German technical guidance documents. The main focus is on the boundary conditions and application criteria for the compartment selection process ("screening"). The theory of this screening approach is demonstrated by a practical example from the Fire PSA for the reference nuclear power plant designed to earlier standards.