2020 Virtual Spring Meeting and 16th GCPS
(92b) LOPA in Action: Making Sure Initiating Events (IEs) and Independent Protection Layers (IPLs) Are Included in Integrated Management Systems
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