Some insights from recent applications of HRA methods in PSA effort and plant operation feedback in Czech Republic |
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Authors: | Jaroslav Holý |
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Affiliation: | Department of Risk and Reliability, Nuclear Research Institute Rez plc Analysis (206 250 68 REZ) 25068, Rez, Czech Republic |
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Abstract: | The methods of human reliability analysis (HRA) form an integral part of probabilistic safety assessment. These methods are currently still under development and there is significant lack of data needed for applications. As a consequence, no unique formal approach for solution of many aspects related to plant staff human performance does exist.In this contribution, some examples of fruitful work are given, which reflect the needs and possibilities specific for HRA field. In the first two examples, methodology, course and results of analysis of concrete matters related to pre-accident errors and shutdown control room crew performance are described. The last example is oriented to one potential human performance related data source-observation of control room crew full-scope simulator exercise. Some conclusions of general validity are presented in the final part of the contribution. |
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Keywords: | Human reliability analysis Pre-accident errors Shutdown scenarios Full-scope simulator Symptom based procedures |
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