In this course, the participant will learn about Layer of Protection Analysis (LOPA) which is a semi-quantitative risk assessment method that lies between a qualitative Process Hazard Analysis (PHA) and a traditional Quantitative Risk Assessment (QRA). This technique also helps in determining the Safety Integrity Level (SIL) necessary for a safety instrumented system to comply with instrument standards, such as ISA S84 and IEC 61511. This course will cover the LOPA methodology in detail, through practical examples and teaching of the fundamental rules of how to develop LOPA scenarios, estimate their consequences and severity, identify initiating events and frequency, and finally calculate risk and make decisions. In this course, the participants will learn about the Independent Layers of Protection (IPLs) and estimating their failure on demand. This course will also demonstrate practical examples to explain each concept and the development of a LOPA worksheet from a PHA worksheet.

Accreditation: 14 PDHs