川内原子力発電所の安全性向上評価におけるPRAについて
概要
Sendai Nuclear Power Station is the first one in Japan which has restarted the units under new regulatory requirements after Fukushima-Daiichi Nuclear Disaster. For these restarted units, Safety Improvement Assessment is mandated to be conducted every outage by the new regulatory requirements. The assessment shall be reported to Nuclear Regulatory Authority (NRA) and disclosed on the Web. Kyushu Electric Power Company submitted the assessment report including Probabilistic Risk Assessment (PRA) to NRA for Sendai unit 1 and 2 in compliance with this requirement. This paper describes the overview of PRA in Safety Improvement Assessment on Sendai Nuclear Power Station.