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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 Technical Services, 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: November 07, 2013