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On the Application of PSA Component Reliability and Maintenance Data as a Long Term Safety Indicator

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Probabilistic Safety Assessment and Management

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Abstract

Since 1994 NPP Goesgen has been maintaining a complete Level 2 PSA (full power) including external and area events as well as a complete Level 1 Shutdown PSA. The PSA is updated on a regular basis including a periodic update of plant specific component reliability and maintenance data. To assess the long term efficiency of the ageing management program in addition to deterministic evaluation criteria the reliability and maintenance data collected for the PSA are used as a plant internal safety indicator. For this purpose a new approach was developed, which combines component reliability and maintenance unavailability data into a joint parameter, suitable for judging the success of the plant ageing management and maintenance program for active components. This indicator is used in addition to the analysis of typical plant-specific maintenance configurations with the help of a full scope PSA applied to the confirmation of existing technical specifications.

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References

  1. Issues and Recommendations for Advancement of PRA Technology in Risk-Informed Decision Making, NUREG/CR-6138, January 2003

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  2. R. Beutler, G.M. Schoen, LS. Kim, M. Khatib-Rahbar, M., Probabilistic Analysis of Events at Swiss Nuclear Power Plants, to be presented at PSAM7, June 14–18, 2004, Berlin.

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Author information

Authors and Affiliations

  1. Kernkraftwerk Goesgen-Daeniken, Kraftwerkstrasse, 4658, Daeniken, Switzerland

    Jens-Uwe Klügel

Authors
  1. Jens-Uwe Klügel
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Editor information

Editors and Affiliations

  1. TÜV Süddeutschland, Dudenstrasse 28, D-68167, Mannheim, Germany

    Cornelia Spitzer Dipl.-Math.

  2. Swiss Federal Nuclear Safety Inspectorate (HSK), CH-5232, Villigen-HSK, Switzerland

    Ulrich Schmocker PhD

  3. Paul Scherrer Institut (PSI), CH-5232, Villigen PSI, Switzerland

    Vinh N. Dang PhD

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© 2004 Springer-Verlag London

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Klügel, JU. (2004). On the Application of PSA Component Reliability and Maintenance Data as a Long Term Safety Indicator. In: Spitzer, C., Schmocker, U., Dang, V.N. (eds) Probabilistic Safety Assessment and Management. Springer, London. https://doi.org/10.1007/978-0-85729-410-4_250

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  • DOI: https://doi.org/10.1007/978-0-85729-410-4_250

  • Publisher Name: Springer, London

  • Print ISBN: 978-1-4471-1057-6

  • Online ISBN: 978-0-85729-410-4

  • eBook Packages: Springer Book Archive

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