17 Common cause failures

Common Cause Failures (CCF) occur when multiple (usually identical) components fail due to shared causes. Typical examples of shared causes include impact, vibration, temperature, contaminants, miscalibration and improper maintenance. CCF is one of the reasons why a classical reliability model of a system may dangerously underestimate risk. It directly attacks the benefits of providing redundancy by creating a single point of failure.

• Procedures for Conducting Common Cause Failure Analysis in Probabilistic Safety Assessment
• Common-Cause failure Database and Analysis System: Event Data Collection, Classification, and Coding
• Common Cause Failures: Failures of multiple components involving a shared dependency
• Common Cause Failure Analysis

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Risk Assessment Copyright © 2015 by R.A. Borrelli is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.