Analysis of Reactor Trips Originating in Balance of Plant Systems

摘要

The report documents the results of an analysis of balance-of-plant (BOP) related reactor trips at commercial U.S. nuclear power plants over a 5-year period, from January 1, 1984 through December 31, 1988. The objectives of the study were: to improve the level of understanding of BOP-related challenges to safety systems by identifying and categorizing such events; to prepare a computerized data base of BOP-related reactor trip events and use the data base to identify trends and patterns in the population of these events; to investigate the risk implications of BOP events that challenge safety systems; and to provide recommendations on how to address BOP-related concerns in a regulatory context.