Search of Aging Factors. International Conference on Nuclear Power Plant Aging, Availability Factor, and Reliability Analysis

摘要

The analysis and evaluation of reliability, availability and aging factors of emergency stand-by components quite often give uncertain results if only successes and failures on demand are available to the analyst. For this reason the performance analysis of 4 emergency diesel generator sets at the Caorso nuclear plant and of 17 sets at 6 fossil-fuelled electric stations in Italy has been carried out taking into consideration, in addition to failures on demand also some 2000 work permits for maintenance. With this large and detailed data base it has been possible (a) to determine more accurate values for mission failure probabilities and unavailability periods, and (b) to search for the effects of aging factors. (ERA citation 11:035922)