MULTIPLE RELATED COMPONENT FAILURE EVENTS - RISK, DESIGN, MAINTENANCE AND COST
A recent study, aimed at improving understanding of the problem of common cause failure (CCF) analysis, has been enlarged in order to consider several different types of related failure events and to put the CCF problem into a broader perspective. Component failure events relating to pumps motors and valves for ten European nuclear reactors (contained in the component event data base of the European Reliability Data System) have been qualitatively examined. All related multiple failure events (MFEs) where a temporal, physical or causal commonality could be identified have been classified using a proposed classification system and which, in turn, is the basis of a search algorithm. The data analysis demonstrates that whilst certain types of MFE are of great concern to reliability analysts, there are many which result in a large number of outages, reduced availability and hence increased maintenance and production costs. It is demonstrated, therefore, that there could be considerable benefits in analysing failure event data in this way, principally in relation to information feedback for design and maintenance.
Bibliographic Reference: "RELIABILITY 1985", BIRMINGHAM (UK), JULY 10-12, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31783 ORA
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Record Number: 1989123102300 / Last updated on: 1987-01-01
Available languages: en