原子力発電所における機器の地震経験に関する分析とその特徴

抄録

Typical failure modes of components and their causes are analyzed based on seismic experience database of components in Japanese NPPs. This report describes the detail of the damages and their causes to bring deteriorated or loss of functions in 15 component classes. In addition, secondary damages due to failures in components, especially overflows/leakage of water, oil leakage, fires, are also detected. The findings obtained by the present analysis can be used to clarify the failure mode in fragility analysis or improve post-earthquake inspections.