The paper summarizes the results of research studies and discussions on the use of PSA to
evaluate the SSC ageing effect on overall plant safety carried out within the framework of the ECJRC
Ageing PSA Network.
In particular, statistical methods and approaches to identify and model ageing effects on
safety component reliability using operating experience data are presented. The possible impact of
agerelated
degradation on the component reliability and on the plant risk profile is demonstrated
using the PWR Large LOCA PSA model as an example. Practical insights, recommendations and
limitations are also discussed.
Key Words: ageing effects, Probabilistic Safety Assessment, timedependent
reliability
model.
RODIONOV Andriy;
2008-11-04
American Nuclear Society
JRC45388
https://publications.jrc.ec.europa.eu/repository/handle/JRC45388,
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