Vital Auxiliaries — The Underrated Events

  • David J. Finnicum
  • Stuart A. Webster


Auxiliary systems, such as instrument air, DC power and cooling water play an important part in keeping a nuclear power plant operating. This paper looks at failures which have occurred in these systems. A new technique for analyzing plant auxiliary systems to detect potential interactions between the auxiliary systems and other plant systems is presented. This Commonality Failure Analysis Technique is applied to the analysis of a typical auxiliary system.


Safety System Auxiliary System Nuclear Regulatory Commission Process Perturbation Feedwater Pump 
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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • David J. Finnicum
    • 1
  • Stuart A. Webster
    • 2
  1. 1.Reactor DesignCombustion Engineering, Inc.WindsorUSA
  2. 2.Plant Engineering Nuclear Power SystemsCombustion Engineering, Inc.WindsorUSA

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