Guidelines for Initiating Events and Independent Protection Layers in Layer of Protection Analysis

Guidelines for Initiating Events and Independent Protection Layers in Layer of Protection Analysis
Author :
Publisher : John Wiley & Sons
Total Pages : 384
Release :
ISBN-10 : 9781118948712
ISBN-13 : 1118948718
Rating : 4/5 (718 Downloads)

Book Synopsis Guidelines for Initiating Events and Independent Protection Layers in Layer of Protection Analysis by : CCPS (Center for Chemical Process Safety)

Download or read book Guidelines for Initiating Events and Independent Protection Layers in Layer of Protection Analysis written by CCPS (Center for Chemical Process Safety) and published by John Wiley & Sons. This book was released on 2015-02-03 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a guide for Layers of Protection Analysis (LOPA)practitioners. It explains the onion skin modeland in particular, how it relates to the use of LOPA and the needfor non-safety instrumented independent protection layers. Itprovides specific guidance on Independent Protection Layers (IPLs)that are not Safety Instrumented Systems (SIS). Using theLOPA methodology, companies typically take credit for riskreductions accomplished through non-SIS alternatives; i.e.administrative procedures, equipment design, etc. Itaddresses issues such as how to ensure the effectiveness andmaintain reliability for administrative controls or“inherently safer, passive” concepts. This book will address how the fields of Human ReliabilityAnalysis, Fault Tree Analysis, Inherent Safety, Audits andAssessments, Maintenance, and Emergency Response relate to LOPA andSIS. The book will separate IPL’s into categories such as thefollowing: Inherent Safety eliminates a scenario or fundamentally reduces a hazard Preventive/Proactive prevents initiating event from occurring such as enhancedmaintenance Preventive/Active stops chain of events after initiating event occurs but beforean incident has occurred such as high level in a tank shutting offthe pump. Mitigation (active or passive) minimizes impact once an incident has occurred such as closingblock valves once LEL is detected in the dike (active) or the dikepreventing contamination of groundwater (passive).


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