PRA importance measures for maintenance prioritization applications

摘要: Abstract Various importance measures are standardly calculated in a standard probabilistic risk assessment (PRA). Approaches developed this paper for using two of these measures—the minimal cutset contribution and the reduction importance—for prioritizing importances maintenances. One approach which is prioritizes maintenances based on associated contributor. The second impact if maintenance ineffective. core damage frequency used as measure prioritization. demonstration studies, carried out Surry Plant PRA, indicate that approaches give similar results appropriate cutoff criteria used. As an additional evaluation, unimportant identified increase importance, or achievement worth, PRA.