STUDY OF OPERATOR RELIABILITY IN NUCLEAR-POWER-PLANTS

The study of the reliability of operator's diagnosis and decision-maki ng during abnormal events with HCR model has been introduced. A new ap proach has been proposed by the authors to deal with the classificatio n of HIs. The modification of T-0.5 by PSFs coefficients has been disc ussed. In addition, it is emphasized that T-0.5 and SD(sigma) of respo nse times can be used as a scale to predict and evaluate the reliabili ty of crew/operator behavior. These processings provide improvement an d refinement to HCR model arid its practical application. The experime nt for operator response time of Chinese NPP using a full-scale simula tor has proved the above-mentioned processings and presented the quant itative results of operator reliability in Chinese NPP.