Communication Pattern analysis between MCR operators that use Extended Speech Act Coding Scheme in emergency circumstance of Nuclear Power Plant

Emergency operation circumstance of nuclear power plant asks operators fast action as is different from normal operation, abnormal operation and the result is much serious. Therefore, correct communication of operators action is required more much. So, is trying much lest human mistake at this emergency circumstance should happen at nuclear power plant. Nuclear power plant operators must take a course of normal operation, abnormal operation, emergency operation practice training and lecture room education in simulator by periodic (minimum 2/year). There have been a lot of researches about communication of nuclear power plant operator so far and these researches gave a lot of helps in operator training and power plant operation. In this study, observed emergency operation simulator practice about ISLOCA (Interfacing System LOCA) of operators of Yonggwang NPP 1. Analyzed communication patterns comparison with communication in previous abnormality circumstance analyzing comm unication patterns of operator in this scenario circumstance