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Probabilistic Risk Assessment


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Probabilistic Risk Assessment is a powerful tool for assessing, in a realistic manner, the likelihood of undesired plant events.  It can provide a more balanced overview of the strengths and weakness of existing system designs and operating practices than can be obtained from traditional deterministic "worst case" evaluations.

However, in order for a PRA model to be useful, that models (and its documentation) must be kept up to date and should incorporate state-of-the-art methodologies for evaluating the full spectrum of plant conditions that might be experienced.

Key Benefits of a State-of the-Art PRA Model

  • Provides flexible support to meet regulatory requirements (such as Maintenance Rule and the Significance Determination Process)
  • Can provide the plant with increased operating flexibility and reduced operating costs through the use of various industry-demonstrated PRA Applications
  • Provides insights for improvements in plant design, operations, personnel training, and maintenance practices to improve safety and improve operating reliability

Corporate Capabilities

Maracor Software & Engineering, Inc. offers practical expertise in the following capability areas:

  • PRA Reviews (and preparation for upcoming reviews)
  • Level 1 PRA Development and Update
  • Level 2 Analysis and Update
  • Low Power and Shutdown PRA
  • Fire and Flooding PRA 
  • Configuration-Specific PRA Model Development and Validation
  • Conversion of Existing PRA Models to New Software and New Methodologies
  • PRA Model Documentation
  • PRA Training

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Last modified: March 17, 2004