Risk-based approach to plant life management

摘要

The growing interest in risk-based management is driven by the need of developing strategies that lead to an optimal safety versus cost balance. The general philosophy behind risk-based management is briefly described here and discussed. It is formally shown that the core damage frequency can be factored into a system (PSA) part and component failure frequency part. Some of the procedures, currently applied in risk-based inspection, are discussed. The basic elements for failure frequency calculations are presented and discussed. A quantitative risk-based inspection study performed for the Oskarshamn 1 unit is briefly presented as an example of how risk-based procedures can be applied.