Safety-related system
A safety-related system (or sometimes safety-involved system) comprises everything (hardware, software, and human aspects) needed to perform one or more safety functions, in which failure would cause a significant increase in the safety risk for the people and/or environment involved.[1]
A safety-related system may be stand-alone equipment for a particular safety function (such as fire detection) or may be integrated within other equipment (for example, the speed controller for a machine tool).
Safety-related systems are related to safety-critical systems, but are those that do not have full responsibility for controlling hazards such as loss of life, severe injury or severe environmental damage. The malfunction of a safety-involved system would only be that hazardous in conjunction with the failure of other systems or human error.
Some safety organizations provide guidance on safety-related systems, for example the Health and Safety Executive (HSE) in the United Kingdom.[2]
See also
References
- ↑ "FAQ – Edition 2.0: E) Key concepts". IEC 61508 – Functional Safety. International Electrotechnical Commission. Retrieved 23 October 2016.
- ↑ "Part 1: Key guidance". Managing competence for safety-related systems (PDF). UK: Health and Safety Executive. 2007. Retrieved 23 October 2016.