Common-cause Failures as Major Issue in Safety of Control Systems
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| Title | Common-cause Failures as Major Issue in Safety of Control Systems |
| Authors | |
| Abstract | In order to gain an improvement of safety or availability measures of the safety-relevant control system through employment of redundancy a redundant system has to comply with the requirement on independence of redundant parts. If the requirements on the independence of redundant parts are unfulfilled, then a common-cause failure can directly cause a hazardous state on a system level through its effects on multiple redundant parts. Identification of sources and quantification of the common-cause failure parameters has been proved to be a formidable task. The latter problem, including other major safety-affecting factors lays in the focus of this paper. Our proposed technical safety analysis concept is extended, so now it partially covers elusive problems related to the common-cause failures. |
| Publisher | Faculty of Electrical Engineering and Computer Science |
| Date | 2013-04-27 |
| Source | Advances in Electrical and Electronic Engineering Vol 11, No 2 (2013): Special Issue |
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