예비위험원분석을 통한 ATP시스템의 위험원 도출에 관한 연구

초록

This study provides a method to identify hazards inherent in the system, relating to the definition of safety actions that verify that any hazard inherent in the system has been controlled to the acceptable level. The hazard can be categorized into two types: representative hazard, which is established at the conceptual level of system design, and system hazard, which is identified at the detailed level of system design according to functional, interface requirements and operational scenario. The system hazard causes the representative hazard, of which result shall be the event defined. The identification of the representative hazard, the beginning of the action to obtain safety, seriously affect the following safety actions and thus it must be objective and reliable. Therefore, to identify the representative hazard this study shall use special format and provide the method which is safe and confirmed by system experts.