ABSTRACT

We started a project to develop a simulator-based Human Reliability Analysis (HRA) data handbook that can support the generic process of HRA by using the full-scope simulator of Korean nuclear power plants. The scope of the project covers post initiating Human Failure Events (HFEs) included in internal event HRA. The purpose of this paper is to conduct a case study on a qualitative HRA with simulator data by using HURAM+ (Human related event Root cause Analysis Method Plus) and HERA (Human Event Repository and Analysis) and to provide the insights achieved from the case study. HURAM+ and HERA are well-defined human-related event analysis tools in Korea and the USA respectively. HERA requires a burden to analyze and enter an event data from lots of data fields even though it is well designed to estimate Human Error Probabilities (HEPs). It is somewhat more convenient to enter data into the HuRAM+ worksheet; however, there is no data field for recovery action and dependency and it is difficult to analyze the organization and safety culture factors. The insights obtained from the case study will be reflected for the framework design.