Title :
A method for identification of human originated test and maintenance failures
Author :
Pyy, Pekka ; Saarenpaa, T.
Author_Institution :
Tech. Res. Centre of Finland, Helsinki, Finland
Abstract :
In order to improve the coverage of PRAs (probabilistic risk assessments) and the maintenance planning at nuclear power plants, the Technical Research Centre of Finland has developed a method for identification of possible test-and-maintenance-caused common-cause failures. The method has been tested in analyses of safety-related systems at a nuclear power plant in Olkiluoto, which consists of two 660 MW BWR (boiling water reactor) units. The method is praxis-oriented and provides a simple way to cluster operating and maintenance experience to improve safety. The starting point of the method is to go through a process systematically in group sessions and by using a special form. Identified possible common-cause failures are classified into three categories with respect to the risk they are considered to cause to the installation.<>
Keywords :
fission reactor safety; human factors; maintenance engineering; nuclear power stations; safety systems; 660 MW; BWR; Finland; Olkiluoto; boiling water reactor; human originated test failures; maintenance planning; nuclear power plants; probabilistic risk assessments; safety-related systems; test-and-maintenance-caused common-cause failures; Degradation; Failure analysis; Fasteners; Human factors; Optimization methods; Performance evaluation; Power generation; Power system planning; Safety; System testing;
Conference_Titel :
Human Factors and Power Plants, 1988., Conference Record for 1988 IEEE Fourth Conference on
Conference_Location :
Monterey, CA, USA
DOI :
10.1109/HFPP.1988.27515
