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Click Below for Additonal SIL Information
Topics
 Articles: SIL
101 | SIL
102 | SIL
103
Calculating
SIL Suitability Levels
Functional
Safety Standards
Choosing
an SIL System
LOPA: Layer of Protection
Analysis
LOPA is a rigorous methodology for evaluating plant hazards and assessing
risk. Every plant has multiple layers of safety protection. Each layer
of protection has its own level of risk reduction. Each safety layer
must be independent of the others, meaning that if there is a failure
in one safety layer, another layer is not affected and can still perform.
The LOPA must be conducted by a diverse team. There are many consulting
and engineering firms that also provide LOPA services.
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