- Introduction to Process Operation and Performance; Measurement, Automation, Control Systems, Human Interface and Networks, Process Safety Protection System, Equipment Under Control [EUC]. Sensors, Logic Solvers and Final Control Elements.
- Hazards and Risks; Inherent Risk and Tolerable Risk. Typically, acceptable risk values. Standards, Rules and Regulations. The role of IEC 61508 and IEC 61511.
- Risk Reduction Techniques; Independent Layers of Protection using alternative methods such as mechanical and electrical devices.
- The Safety Life Cycle; The concept of Safety Management by implementation of a defined set of procedures. Analysis of the Safety Life Cycle’s individual steps in the flowchart.
- Safety Instrumented Systems; The configuration of Electrical, Electronic and Programmable Electronic Systems to provide a defined level of protection. Low Demand, High Demand and Continuous Demand Mode. Safety Integrity Levels, Fail Safe and Reserve Energy, Safety Instrumented Function.
- System Failures; Random Failures, Common Cause Failures, Systematic Failures.
- Mathematical Constants for each SIL approved device; Reliability, Un-reliability, Failure Rates, Bath tub Curve, Exponential Relationship with Time, Availability, Safe Failure Fraction, % Safe, Risk Reduction Factor, Mean tine to Failure, Mean Repair Time, Mean Down Time, Probability of Failure on Demand, Probability of Failure per Hour,
- Device Types and Configurations: Type A and Type B devices, Hardware Fault Tolerance, Typical Voting Configurations, Triple Modular Redundancy, Achieving SIL1, SIL2 and SIL3 levels of protection,
- Low Demand Mode Calculations; Equations for calculating Probability of Failure on Demand, Equations for Spurious Trip Rates, Calculations with single input and single output circuits using typical industrial devices.
Who should attend this course?
Chemical & Process Engineers, Process Designers, Engineers (mechanical, electrical, instrumentation), Maintenance & Instrumentation Technicians, Senior Electricians, Production/Process Team Leads, HAZOP Chairs & Safety Engineers
On completion of this program participants will be able to;
- describe and define automated process operation and performance under normal and abnormal condition where a level of risk may arise.
- apply reliability theory to the solution of practical problems involving electrical, electronic and programmable electronic safety devices.
- select appropriate electrical and electronic devices based on their characteristics and construct basic safety circuits utilising these components based on IEC 61508 and IEC 61511 standards in low demand mode.
- specify and verify basic series safety circuits with single input and single output configuration and verify the SIL level provided in low demand mode using Route 1H.
- source device data sheets, certificates of compliance and understand the schematic circuitry involved in constructing the safety loop.