Layer of Protection Analysis (LOPA)

Standards: IEC 61511; IEC 61508; ANSI/ISA-84.00.01
LOPA is a technique for evaluating the hazards, risks and layers of protection associated with a system, such as a chemical process plant. In terms of complexity and rigour LOPA lies between qualitative techniques such as hazard and operability studies (HAZOP) and quantitative techniques such as fault trees and event trees. LOPA is used to identify scenarios that present the greatest risk and assists in considering how that risk could be reduced.

Our Services

For existing Plant (Refinery, Process unit, chemical Plant, Surface Facility for Crude Oil Production)

• To conduct LOPA study
• Risk assessment and recommendation
• Determination of a Safety Integrity Level (SIL) for the design of a safety-instrumented function
• Set up LOPA team for user