LOPA in Action: Making Sure Initiating Events (IEs) and Independent Protection Layers (IPLs) Are Included in Integrated Management Systems

  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Spring Meeting and Global Congress on Process Safety
  • Presentation Date:
    August 19, 2020
  • Duration:
    20 minutes
  • Skill Level:
    Intermediate
  • PDHs:
    0.40

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This paper focuses on ensuring that risk is effectively maintained by ensuring that each IE and each IPL are included within integrated management systems. Topics covered include:

  • Extracting IEs and IPLs from PHAs for including in mechanical integrity, asset integrity, and operational discipline programs to ensure the reliability factors targeted for each is achieved in practice.
  • Auditing techniques for checking if IEs and IPLs listed in PHAs are being maintained. The paper will share an auditing protocol that has proven valuable for this step.
  • Measuring the IEF for IEs and PFDs for IPLs. This includes ensuring the effectiveness of human IPLs per the approach described in earlier papers on this topic; these approaches will be summarized here. (Another Abstract submitted to PPSS describes this Human IPL validation in more detail.)
  • Case studies and examples will be shared for each step above. Some of these will be from the SABIC affiliate, UNITED
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