Development of Pertormance Shaping Factors for Human Error Reduction during Reactor Decommissioning Activities through the Task Analysis Method

摘要

In this study, we present the process of deriving Performance Shaping Factors (PSFs) and developing a classification system for them to account for human errors that may occur during the decommissioning activities due to the shutdown of the Kori Nuclear Power Plant Unit 1. Furthermore, Human Reliability Analysis (HRA) for the reduction of human errors was performed on the Reactor Pressure Vessel Internal (RPVI) cutting work. Task Analysis was conducted on the RPVI decommissioning activities and possible human errors were identified. The PSF selection criteria that affect the decommissioning activities were set up based on the human errors identified through the results of the Task Analysis and review of the PSFs applied to the field of nuclear energy power generation. Finally, the PSFs were derived and their classification system was developed.