Understand, design and implement safe and reliable machinery and process control and safety systems.
Critical Work Functions
- 5.5.1 Analyze and determine the need for design changes or additional equipment to improve safety
- 5.5.2 Determine need for Safety Instrumented Systems (SIS)
- 5.5.3 Determine the appropriate Safety Integrity Levels (SIL)
- 5.5.4 Develop safety requirements specification
- 5.5.5 Design, document, install, validate, periodically check, and maintain the safety equipment and systems
- 5.5.6 Apply instrumentation procedures in hazardous areas safely
Technical Content Areas- 5.5.7 Alarm management lifecycle
- Philosophy
- Identification
- Rationalization
- Detailed design
- Implementation
- Operation
- Maintenance
- Monitoring and assessment
- Management of change
- Audit
- 5.5.8 Reliability
- Common cause and its impact on reliability
- Concepts of
- Mean Time to Repair (MTTR)
- Mean Time to Failure (MTTF)
- Mean Time Between Failures (MTBF)
- Safe and dangerous failure modes
- Testing intervals and its impact on performance
- Types of redundancy and how they impact dangerous and safe failure modes
- 5.5.9 Machine and process guarding
- Concepts of guarding
- Design considerations
- Laws and regulations
- Protection levels
- Risk analysis
- 5.5.10 Safety lifecycle
- Safety lifecycle
- Allocation of safety functions to protective layers
- Determination of safety integrity levels
- Safety requirements specification
- Design and engineering issues and system technologies
- Installation, commissioning, and validation
- Operations and maintenance
- 5.5.11 Safety equipment
- General Purpose Programmable Logic Controllers (PLCs)
- Safety PLCs
- Simplex, duplex, triplex, and quad configurations
- Selection (logic solver, field devices, networks)
- Diagnostic annunciation
- Probabilistic modeling
- 5.5.12 Safe use and application of electrical apparatus
- Equipment for use where explosive concentrations of gas, vapor, or dust might be present
- Equipment selection for hazardous areas
- 5.5.13 Documentation
- Piping and Instrument Diagrams (P&ID)
- 5.5.14 Standards
- ISA 84/IEC 61511 - Safety Instrumented Systems
- ISA 18 (IEC) 62682) - Alarm Management
- ISO 13849 - Safety of Machinery
- IEC 62061 - Functional Safety of Safety-Related Electrical, Electronic, and Programmable Electronic Control systems
- NFPA 497 - Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas
- NFPA 499 - Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas
- EIC 61508 - Functional Safety of Electrical/Electronic/Programmable Electronic Safety-Related Systems