Study on the identification of main drivers affecting the performance of human operators during-low power and shutdown operation

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In the past, many researchers believed that a reactor during low power and shutdown operation was sufficiently safe. This belief has been changed by the number of accidents during such types of operation, which is significantly high. Also, it was pointed out that one of the main differences between low power and shutdown operation and full power operation is the significance of human action because there are huge amounts of human actions due to extensive maintenance and testing while automatic control and safety functions may be disabled and procedures are insufficient or incomplete. This paper suggests the main drivers in performing human reliability analysis. For this study, we reviewed eight reports relating to human performance during low power and shutdown operation and applied a root cause analysis method for 53 human or human-related events at domestic nuclear power plants to derive the main drivers that affect the occurrence of those events. As a result, several main drivers were derived, such as procedures, training, experience of personnel, and workload/stress. It is expected that these main drivers will be used to perform human reliability analysis for low power and shutdown operation. (C) 2016 Elsevier Ltd. All rights reserved
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2016-06
Language
ENG
Article Type
Article
Citation

ANNALS OF NUCLEAR ENERGY, v.92, pp.447 - 455

ISSN
0306-4549
DOI
10.1016/j.anucene.2016.02.010
URI
http://hdl.handle.net/10203/208996
Appears in Collection
NE-Journal Papers(저널논문)
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