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Safety integrity levels… challenges and solutions

Case studies, tool and techniques to satisfy your customer and legal requirements

11 - 12 December 2012 | Strand Palace Hotel, London




Quick contact

For queries regarding this event, please contact the Event Producer:

Zoe Squires

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Event accommodation

About the seminar


In this era of economic constraints there’s an ever increasing need for operating assets to function to their maximum potential – and that’s true across any sector – but just as important is the need for these assets to continue to perform safely.

Industry increasingly relies upon safety (instrumented and electrical) systems to maintain and protect operating assets. The concept of Safety Integrity Levels (SIL) is fundamental in ensuring a (safety related) system satisfactorily performs the required safety functions under all stated conditions, within a defined time period.

Accurately determining the Safety Integrity Level for your system is a topic which generates significant debate within industry across the safety-related community, particularly in relation to standards such as IEC 61508, IEC 61511 and IEC 62061.


A definition of a SIL (Safety Integrity Level)

Safety Integrity Levels (SIL) are measures of the safety of a given process or machine. To say that a process meets a specific SIL is to say that it was developed using appropriate techniques and measures to ensure that it meets the systematic failure requirements of a specific safety function at that level. Levels are ranked 1-4 and the higher the number, the safer the process.

There are four discreet integrity levels, SIL 1 - 4. The higher the SIL level, the higher the associated safety level and the lower the probability that a system will fail to perform properly (source: Buncefield Investigation).

For example: a dangerous machine, that if it failed may cause serious injury or death, may be awarded a certain SIL. This level would be 1, 2, 3 or 4.


So many reasons to attend…

  • Meet the minds behind the IEC 61508 safety standard
  • Immerse yourself in topical case studies of SIL determination in practice across a range of industry sectors to better inform and better maximise the effect and efficiency of your system safety verification procedures
  • A neutral setting to inspire debate into whether the benefits and assurance provide by a particular SIL can be achieved by alternative means
  • Gather legal insights into this unforgiving area of and ensure you stay the right side of the law

The invited speaker seminar day on 12 December is preceded by two optional workshops.


How do I register?

You can choose to register online or download and complete a registration form for either or both the workshops and the seminar.

View the registration page for details.



Confirmed speakers include:

  • Ron Bell, member of one of the two teams responsible for the development & revision of IEC 61508 and Director, ESC Ltd, UK
  • Simon Burwood, Principal Consultant, ESC Ltd, UK
  • Dr Alan G. King, ABB, UK


Key topics

Key topics will be covered in depth by high level representatives of:

  • Chair of one of the two teams responsible for the development and revision of IEC 61508
  • Esc Ltd
  • ABB


Who should attend?

This event will be of interest to engineers and technical managers from organisations that:

  • Are responsible for the management of safety, health and environmental systems
  • Specify the safety requirements and target SIL of E/E/PE safety-related systems
  • Provide safety-related systems designed to meet target SIL and safety requirements
  • Are responsible for maintaining and optimising SIL performance on operational assets
  • Are tasked with reducing SIL levels
  • Are responsible for delivering functional safety of systems across the rail, defence, power, process and automotive industry