METHODS OF ANALYSING SIGNIFICANT EVENTS AT GENTILLY-2 NUCLEAR POWER PLANT

摘要

Various methods of analysing significant events have been introduced at the Gentilly-2 plant or are undergoing evaluation. These methods amplify the types of analysis used from 1983 to 1990. The new approach has three main objectives: (1) To enable rapid analysis of an event involving power reduction by comparing the facility's response with the known signature for a similar event; (2) To review all events at the plant systematically in order to identify their causes and consequences, formulate corrective actions, enable more representative trends to be established and facilitate more comprehensive feedback of experience; (3) To analyse methodically events involving human and organizational factors, in order to identify the corrective actions required in those areas. The normal procedure for analysing an event when it occurs is given in Fig. 1. The approach is based on three types of analysis, namely preliminary safety evaluation (PSE), significant event analysis (SEA) and analysis of human and organizational factors (AHOF).