courses

Layer of Protection Analysis (LOPA)

Topic Safety

CPD Hours 11.5

Learn the methodology and detailed application of LOPA

Layer of protection analysis (LOPA) is a semi-quantitative tool for analysing and assessing risk on a process plant. It uses an order of magnitude technique to evaluate the adequacy of existing or proposed layers of protection against known hazards.

The course will help you understand how significant scenarios are categorised and tolerable frequencies assigned for identified hazardous events. You will also learn to assign risk categories and determine how many Independent Protection Layers (IPLs) should be in place. The course also covers the specification and requirements for a protection layer to be accepted as an IPL.

All the essential LOPA steps are practised in workshops, including the use of software tools. Course materials also include a compendium of LOPA research papers, reference materials and further reading.

Learning outcomes

  • the LOPA methodology and its application
  • how to decide if a process needs a safety instrumented system (SIS)
  • what safety integrity level (SIL) is required
  • how to define an Independent Protection Layer (IPL)
  • how to implement a process to manage these systems through the life cycle of an installation
  • how to lead a LOPA study.

Who will benefit

  • process safety engineers
  • loss prevention specialists
  • production engineers
  • process design engineers
  • project engineers
  • process programmers
  • instrument control designers
  • anyone responsible for leading a LOPA study.

Course outline

  • LOPA overview and definitions
  • scenarios
  • initiating events and frequencies
  • common alternatives to LOPA
  • As Low as Reasonably Practicable (ALARP)
  • mitigation
  • leading the LOPA study
  • LOPA audit
  • documentation
  • Buncefield - 15 LOPA studies
  • human factors using Human Error Assessment and Reduction Technique (HEART).

Discounts

Discounts are available to companies booking more than one place:

  • 2 places - 5% discount
  • 3 places - 10% discount
  • 4 or more places - 15% discount.
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