Safety systems reliability

The subject is covered in chapters, entitled: general introduction to safety and reliability; the initial approach to performance assessment; variability in performance and the assessment of reliability; reliability estimating, monitoring and the investigation of operating plant systems (including sections on: gas cooled type reactor; the automatic protective system for the Winfrith Steam Generating Heavy Water Reactor (SGHWR); SGHWR operational experience over 5 years and some aspects of unavailability); a total approach to reliability growth and control; conclusions and recommendations for further study. Among the appendices are the following: event and fault trees; failure modes and effects analysis; manual versus automatic control; mean failure rates for components and instruments; failure probability evaluation of an automatic protective system on a PWR; HTGR core auxiliary cooling system reliability prediction. (U.K.)