Safety Integrity Level

10.00-11.30

Introduction: scope of EN 61508 and 61511,­­ terms and definitions (risk, SIL, systematic and random failures), safety vs. functional safety, process and safety equipment

Laws and standards: directives, laws and standards, functional safety management system

10.00 - 11.30

Hazard and risk analysis: tolerable risk, quantification of risk, HAZOP, risk graph, examples

Architecture of safety instrumented systems (1): number of channels vs. hardware fault tolerance, minimum hardware fault tolerance and required SIL, examples

10.00 - 11.30

Equipment qualification: prior use vs. proven in use, (German) technical document NE 130

Architecture of safety instrumented systems (2): multi-channel structure pure and resulting SIL, examples

10.00 - 11.30

Calculation of random failures: probability of failure on demand (PFD), useful lifetime, examples

Non-electrical equipment: MTBF/MTTF, PFD calculation