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  1. #1

    Guidelines for Initiating Events and Independent Protection Layers

    Guidelines for Initiating Events and Independent Protection Layers in Layer of Protection Analysis
    CCPS (Center for Chemical Process Safety)
    The book is a guide for Layers of Protection Analysis (LOPA) practitioners. It explains the onion skin model and in particular, how it relates to the use of LOPA and the need for non-safety instrumented independent protection layers. It provides specific guidance on Independent Protection Layers (IPLs) that are not Safety Instrumented Systems (SIS). Using the LOPA methodology, companies typically take credit for risk reductions accomplished through non-SIS alternatives; i.e. administrative procedures, equipment design, etc. It addresses issues such as how to ensure the effectiveness and maintain reliability for administrative controls or “inherently safer, passive” concepts.
    This book will address how the…
    The book will separate IPL’s into categories such as the following:

    Inherent Safety
    eliminates a scenario or fundamentally reduces a hazard
    Preventive/Proactive
    prevents initiating event from occurring such as enhanced maintenance
    Preventive/Active
    stops chain of events after initiating event occurs but before an incident has occurred such as high level in a tank shutting off the pump.
    Mitigation (active or passive)
    minimizes impact once an incident has occurred such as closing block valves once LEL is detected in the dike (active) or the dike preventing contamination of groundwater (passive).


    [link Point to another website Only the registered members can access]


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  3. #2

    Re: Guidelines for Initiating Events and Independent Protection Layers

    Dear Mohamed, the link is broken. Pease reupload. Thanks

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  6. #4

    Re: Guidelines for Initiating Events and Independent Protection Layers

    Thank you very much Han

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  9. Re: Guidelines for Initiating Events and Independent Protection Layers

    Dear Bros,
    Any solution as the link could not get - redirect to required website the box shows as given below:
    "Now you leave Petroleum Community Forum and direct to the required website within10 second."

  10. #7

    Re: Guidelines for Initiating Events and Independent Protection Layers

    Dear bros, the link is broken. Could anyone reupload again. Thanks

    My threads; dd8731 :


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