Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)
143 Development of a Reliability Data Handbook for Piping Components in Nordic Nuclear Power Plants (PSAM-0063)
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Even though pipe breaks may not be a significant risk contributor in many PSAs it is none the less very important that the underlying data reflect current knowledge about piping components and their susceptibility to different degradation mechanisms. Within the Nordic PSA Group (NPSAG) a R&D project has been initiated that will look at the possibilities of using the international OPDE pipe failure database and statistical methods developed for RI-ISI in order to create a handbook (The “R-book”) containing frequencies for different kind of piping component failures. One of the main purposes with this R&D project is to make sure that no matter what the application is, the data source for piping component failures shall be validated and common for all applications. This paper describes the R&D project with its different subtasks.