抄録
To date, human error has been the major cause of adverse events in nuclear power plants (NPPs), and thus, to decrease adverse events, it is crucial to prevent human errors. This study focused on worker errors, which are the most frequent human errors in NPPs, and a new method proposed for classifying measures into seven categories for error prevention. By using this new measure classification for the vertical axis of the matrix table and one of the classifications of human errors, such as background factors, error stages, and individual factors for the horizontal axis, three measure tables for preventing worker errors were created. The measures for preventing worker errors adopted by Japanese NPPs and general industry were arranged in the matrix tables. The tendencies of measures adopted by Japanese NPPs were then analyzed based on the measure tables, and several improvements to measures for decreasing worker errors were identified. The objective of this study was to decrease worker errors in NPPs by using these measure tables and by improving the measures based on the tendency analysis.
