Part A. The Concept of Safety Integrity
by Kenneth L. Simpson, David J. Smith
The Safety Critical Systems Handbook, 4th Edition
- Cover image
- Title page
- Table of Contents
- Copyright
- The relationship of the documents to IEC 61508
- A Quick Overview
- The 2010 Version of IEC 61508
- The 2016 Version of IEC 61511
- Acknowledgments
- Part A. The Concept of Safety Integrity
- Chapter 1. The Meaning and Context of Safety Integrity Targets
- Chapter 2. Meeting IEC 61508 Part 1
- Chapter 3. Meeting IEC 61508 Part 2
- 3.1. Organizing and Managing the Life Cycle
- 3.2. Requirements Involving the Specification
- 3.3. Requirements for Design and Development
- 3.4. Integration and Test (Referred to as Verification)
- 3.5. Operations and Maintenance
- 3.6. Validation (Meaning Overall Acceptance Test and the Close Out of Actions)
- 3.7. Safety Manuals
- 3.8. Modifications
- 3.9. Acquired Subsystems
- 3.10. “Proven in Use” (Referred to as Route 2s in the Standard)
- 3.11. ASICs and CPU Chips
- 3.12. Conformance Demonstration Template
- IEC 61508 Part 2
- Chapter 4. Meeting IEC 61508 Part 3
- 4.1. Organizing and Managing the Software Engineering
- 4.2. Requirements Involving the Specification
- 4.3. Requirements for Design and Development
- 4.4. Integration and Test (Referred to as Verification)
- 4.5. Validation (Meaning Overall Acceptance Test and Close Out of Actions)
- 4.6. Safety Manuals
- 4.7. Modifications
- 4.8. Alternative Techniques and Procedures
- 4.9. Data-Driven Systems
- 4.10. Some Technical Comments
- 4.11. Conformance Demonstration Template
- IEC 61508 Part 3
- Chapter 5. Reliability Modeling Techniques
- Chapter 6. Failure Rate and Mode Data
- Chapter 7. Demonstrating and Certifying Conformance
- Part B. Specific Industry Sectors
- Chapter 8. Second Tier Documents—Process, Oil and Gas Industries
- 8.1. IEC International Standard 61511: Functional Safety—Safety Instrumented Systems for the Process Industry Sector (Second Edition to be Published in 2016)
- 8.2. Institution of Gas Engineers and Managers IGEM/SR/15: Programmable Equipment in Safety-Related Applications—5th Edition 2010
- 8.3. Guide to the Application of IEC 61511 to Safety Instrumented Systems in the UK Process Industries
- 8.4. ANSI/ISA-84.00.01 (2004)—Functional Safety, Instrumented Systems for the Process Sector
- 8.5. Recommended Guidelines for the Application of IEC 61508 and IEC 61511 in the Petroleum Activities on the Norwegian Continental Shelf OLF-070—Rev 2, 2004
- 8.6. Energy Institute: Guidance on Safety Integrity Level (SIL) Determination, Expected to be Published 2016
- Chapter 9. Machinery Sector
- Chapter 10. Other Industry Sectors
- 10.1. Rail
- 10.2. UK MOD Documents
- 10.3. Earth Moving Machinery
- 10.4. Coding Standard
- 10.5. Automotive
- 10.6. Nuclear
- 10.7. Avionics
- 10.8. Medical—IEC 60601 Medical Electrical Equipment, General Requirements for Basic Safety and Essential Performance 2014
- 10.9. Stage and Theatrical Equipment
- 10.10. Electrical Power Drives
- 10.11. Energy Institute (See also Section 8.6)
- Chapter 8. Second Tier Documents—Process, Oil and Gas Industries
- Part C. Case Studies in the Form of Exercises and Examples
- Chapter 11. Pressure Control System (Exercise)
- 11.1. The Unprotected System
- 11.2. Protection System
- 11.3. Assumptions
- 11.4. Reliability Block Diagram
- 11.5. Failure Rate Data
- 11.6. Quantifying the Model
- 11.7. Proposed Design and Maintenance Modifications
- 11.8. Modeling CCF (Pressure Transmitters)
- 11.9. Quantifying the Revised Model
- 11.10. ALARP
- 11.11. Architectural Constraints
- Chapter 12. Burner Control Assessment (Example)
- Chapter 13. SIL Targeting—Some Practical Examples
- 13.1. A Problem Involving EUC/SRS Independence
- 13.2. A Hand-held Alarm Intercom, Involving Human Error in the Mitigation
- 13.3. Maximum Tolerable Failure Rate Involving Alternative Propagations to Fatality
- 13.4. Hot/cold Water Mixer Integrity
- 13.5. Scenario Involving High Temperature Gas to a Vessel
- 13.6. LOPA Examples
- Chapter 14. Hypothetical Rail Train Braking System (Example)
- Chapter 15. Rotorcraft Accidents and Risk Assessment
- Chapter 16. Hydroelectric Dam and Tidal Gates
- Chapter 11. Pressure Control System (Exercise)
- Appendix 1. Functional Safety Management
- Appendix 2. Assessment Schedule
- Appendix 3. BETAPLUS CCF Model, Scoring Criteria
- Appendix 4. Assessing Safe Failure Fraction and Diagnostic Coverage
- Appendix 5. Answers to Examples
- Appendix 6. References
- Appendix 7. Quality and Safety Plan
- Appendix 8. Some Terms and Jargon of IEC 61508
- Advertisement
- Index
Part A
The Concept of Safety Integrity
In the first chapter we will introduce the concept of functional safety and the need to express targets by means of safety integrity levels. Functional safety will be placed in context, along with risk assessment, likelihood of fatality, and the cost of conformance.
The life-cycle approach, together with the basic outline of IEC 61508 (known as BS EN 61508 in the UK), will be explained.
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