Functional safety

Overview of Functional Safety, SIL and IEC 61508

1-Day Training Course

Course description:

This course provides a general overview of functional safety, safety integrity levels (SILs) and the IEC 61508 standard and explains the wide-reaching implications of IEC 61508 for all those involved in the product realisation process. The course starts with typical examples of safety functions used in industry today and the reasons why their integrity needs to be measured. It demonstrates the various analytical and modelling techniques used to quantify failure data, both at the product and system level and hence how the SIL is achieved.

The general requirements from IEC 61508 Part 1 is also covered, including the safety system lifecycle, functional safety management, assessment and competence, plus an overview of the other functional safety sector standards (and how these relate to IEC 61508), the legal framework and how to show compliance.
Practical exercises and worked examples of the reliability calculations are covered in depth, together with the necessary documentation and verification requirements for hardware and software.

Target audience:

The course is aimed particularly at the needs of design, reliability and quality engineers. The first session is also suitable for those just needing a high-level overview such as auditors, technicians, purchasing, certification engineers, project managers and those in marketing and sales roles.

Learning outcomes:

Participants gain a thorough overview of IEC 61508 and related standards and will understand the basic functional safety principles and terms, how these apply to the design and development lifecycle activities, the implications on job roles and how to demonstrate compliance.

Supporting material:

Manuals based on the lecture slides together with supplementary information sheets are provided. Frequent question and answer sessions are included for clarification.

Training Course Outline

1. Introduction to Functional Safety
• Introduction to the course
• Examples of safety functions and subject overview
• Hazards, risks and SILs
• Understanding the jargon
• Q&A
2. Hardware Reliability
• Failure rates and probabilities
• Safety architectures
• Analytical techniques (FMEA, RBD, Chi-square)
• Quantifying product and system failure data
• Exercises and case studies
• Q&A
3. Systematic Integrity
• Hardware lifecycle, techniques and measures
• Software lifecycle, techniques and measures
• Product systematic integrity
• Documentation, verification & validation
• Examples of documentation structure, templates, etc
• Q&A
4. Functional Safety Management (FSM)
• FSM and the quality management system
• Competence
• Functional safety assessment
• Q&A
5. Standards, regulatory and Compliance
• IEC 61508 and related standards
• Legal and regulatory considerations
• Demonstrating compliance
• Q&A