Analysis of Human Error in Trip Event Considering Risk Significance of Events in Korean NPPs

摘要

In the analysis of large accidents like TMI-2 or Chernobyl, it was revealed that human error was one of the important contributor of accidents. Moreover, the effect of the human error on the NPP (Nuclear Power Plant) safety is growing more important as hardware reliability being increased. Accordingly, the human error cause analysis of incidents or accidents in terms of human error is meaningful and necessary work to improve NPP safety by preventing recurrence of similar events. But there has been no work to analyze trip event in view of human performance in Korea. In this study, we performed human error analysis in trip event of Korean NPPs, and used risk information to prioritize human error causes according to their significance.