Layer of Protection Analysis (LOPA)

This course explains Layer of Protection Analysis (LOPA), a semi-quantitative risk assessment method used to determine whether existing protection layers are sufficient and to define Safety Integrity Level (SIL) targets.

• Understand the purpose and principles of LOPA.
• Identify initiating events and frequencies.
• Evaluate independent protection layers.
• Calculate mitigated event frequencies.
• Determine SIL requirements.

• Introduction to LOPA.
• Scenario selection from HAZOP.
• Initiating events and frequencies.
• Independent protection layers (IPLs).
• Conditional modifiers.
• Risk tolerance criteria.
• SIL determination.
• Worked examples.

• Process safety engineers.
• Instrumentation and control engineers.
• HAZOP and LOPA facilitators.
• Risk analysts.

Participants will receive an international certificate upon successful completion of the course.