Development of systems reliability analysis code SECOM-2 for seismic PSA

摘要

An integrated code system SECOM_2, developed at the Japan Atomic energy Research Institute (JAERI), has the following functions for systems reliability analysis In seismic probabilistic safety assessments (PSAs): (1) calculation of component Failure probability, (2) extraction of minimal cut sets (MCSs) from a given fault tree (FT), (3) calculation of frequencies of accident sequences and core damage, (4) importance analysis with several measures with consideration of unique parameters of seismic PSAs, (5) sensitivity analysis, and (6) uncertainty analysis.