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Use of Probabilistic Safety Assessment for Operational Safety PSA '91

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All STI/PUB/878 92-0-000292-7
165.50 1992


Proceedings of a symposium jointly organized with ANS, ENS and OECD/NEA, Vienna, 3–7 June 1991. During recent years the development of PSA has been directed towards its use as a practical tool for the enhancement of operational safety. Only plant specific analysis can provide a basis for meaningful risk management. The importance of human interventions in the recovery from degraded states of operation, the importance of inclusion of external events in PSA, the determination of potentials for common cause failures and the importance of treating and communicating the uncertainties have already been well established within the PSA community. Also, risks during low power level and shutdown states have become more recognized.
Contents: Opening remarks and invited papers; Methodology; Regulatory applications; PSA use and applications — Part I; Applications to process facilities and international activities; Operating experience and ageing; PSA use and applications — Part II; PSA results and insights — Part I; Common cause and external events; PSA results and insights — Part II; Human factors; Living PSA; PSA level 2 and level 3; Poster presentations; Summary, conclusions and recommendations; Closing session.

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