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Layer of Protection Analysis (LOPA)

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Description and objective: Layer of Protection Analysis (LOPA) is an analytical procedure that looks at the safeguards on a process plant to see if the protection provided is adequate for known hazards. It shows whether additional controls or shutdown systems are required by comparing the risk, with and without these additional elements, against a set of predetermined criteria. It is an order of magnitude technique that can be used to meet the risk assessment requirements of IEC 61508 and 61511.

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Categories

•	Health and Safety > Risk Assessment - Health and Safety
•	Industry Specific Skills > Manufacturing > Manufacturing Design