Code Date Venue Early Bird Fee Fee
PD499 14 - 15 May 2020 Singapore SGD 2,740
SGD 2,932 (GST Inclusive)
SGD 2,940
SGD 3,146 (GST Inclusive)
Remind me of Course Dates




14 - 15 May 2020



Early Bird Fee

SGD 2,740
SGD 2,932 (GST Inclusive)


SGD 2,940
SGD 3,146 (GST Inclusive)

About this Training Course 

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 and more detailed fractional factor techniques to evaluate the adequacy of existing or proposed layers of protection against known hazards. The more advanced form of LOPA, which goes further than the order of magnitude method, is fully explored and forms the basis of recommended practice in Europe. This allows a synergy with ‘bow-tie’ models for hazardous events and aims to produce the most realistic outcomes.

This course covers basic and more advanced methodology of LOPA and the detailed stages of its application. Participants are shown how significant scenarios are categorised and tolerable frequencies assigned for identified hazardous events. They are shown how to assign risk categories and therefore determine the number of independent protection layers (IPLs) that should be in place. The specification and requirements for a protection layer to be accepted as an IPL are discussed. All the essential steps in this method are practised in workshops, including the use of software tools in LOPA.

By the end of this course, participants will be able to:

  • Understand the methodology of LOPA
  • Decide if a process needs a safety instrumented system (SIS) and what safety integrity level (SIL) it needs
  • Define an independent protection layer (IPL)
  • Implement a process to manage these systems through the lifecycle of an installation
  • Lead a LOPA study

This course will benefit:

  • Production engineers
  • Process design engineers
  • Project engineers
  • Process programmers
  • Instrument control designers

Learn what past participants have said about PetroEdge training courses

Professional training materials, good learning environment and quality trainer/ guest speaker

Project Engineer, Hyflux

Provides a very good insight of how LOPA can be deployed and used

Application Engineer, Intergraph