Layer of Protection Analysis (LOPA) is a simplified quantitative tool for assessing risk of scenarios already identified. HAZOP studies often yield a number of scenarios that need further elaboration in order to demonstrate achieving the target risk. LOPA, being the industry standard, is an easy-to-understand tool to identify, assess, challenge and document existing risk reduction conditions and safeguards. It shows whether risk targets are met or exceeded and provides a rational allocation of equipment and personnel.
This 1-day LOPA course is a logical add-on to the 3-day HAZOP course, but can also be attended as a stand-alone module.
- Concept of Multiple Protection Layers
- What is LOPA – Comparison with other risk analysis methods
- Purpose and benefits of LOPA
- Options for Risk Reduction – relation to Risk Acceptance Criteria
- Developing scenarios, severity and linking to the risk criteria
- Identifying Initiating Events and Enabling Conditions
- Determination of Initiating Event Frequency
- Conditional Modifiers
- Identifying Independent Protection Layers – Requirements for IPLs
- Determining the Frequency of Scenarios
- Determining scenario risk acceptance and/or further measures needed
- Implementation of LOPA in your organisation