Difference between revisions of "Common Cause Failure"
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<big>A common cause failure (CCF) is a failure where: | <big>A common cause failure (CCF) is a failure where: | ||
| − | * The function of multiple [[CI]] is disrupted or destroyed by the same cause or hazard affecting the [[CI]] at the same location or area in the same time frame (e.g., a hurricane blocking roads and affecting telecommunication and power lines; a collapsed bridge which blocks inland shipping, road transport and caused disruption of gas, power and telecommunication lines) | + | * The function of multiple [[CI]] is disrupted or destroyed by the same cause or [[hazard]] affecting the [[CI]] at the same location or area in the same time frame (e.g., a hurricane blocking roads and affecting telecommunication and power lines; a collapsed bridge which blocks inland shipping, road transport and caused disruption of gas, power and telecommunication lines) |
* Item failures result from a single shared cause and coupling factor (or mechanism)</big> | * Item failures result from a single shared cause and coupling factor (or mechanism)</big> | ||
<br /> | <br /> | ||
Revision as of 01:43, 19 February 2015
A common cause failure (CCF) is a failure where:
- The function of multiple CI is disrupted or destroyed by the same cause or hazard affecting the CI at the same location or area in the same time frame (e.g., a hurricane blocking roads and affecting telecommunication and power lines; a collapsed bridge which blocks inland shipping, road transport and caused disruption of gas, power and telecommunication lines)
- Item failures result from a single shared cause and coupling factor (or mechanism)
Contents
Definitions
European Definitions
Other International Definitions
United Nations’ Definition
National Definitions
Standard Definition
Discussion Topic
See also
- Geographical dependency - incorrect term often used for Common cause failure
Notes
