TSE CEN/TS 17951

TSE CEN/TS 17951 is a technical specification for adaptive emergency escape lighting systems. It addresses lighting and operating requirements for systems that can do more than provide fixed emergency illumination: they may interact with management and control systems, or change their operation according to situational needs such as luminous flux output, escape direction guidance, and the meaning or presentation of emergency escape lighting.

What adaptive escape lighting means in practice

In general technical terms, emergency escape lighting is intended to keep escape routes visible and support safe evacuation when normal lighting is unavailable, for example during a power failure or an emergency event. The adaptive concept means the lighting system can respond to changing conditions instead of remaining static. In practice, that may involve redirecting guidance, varying light output in different areas, or altering how the escape-lighting message is conveyed so it remains relevant to the current situation.

What this technical specification covers and leaves out

The document specifies lighting and operating requirements for adaptive systems and recognises that their operation may depend on components or systems beyond the emergency escape lighting equipment itself. Those additional components or systems are outside the scope of this document. As a result, the specification focuses on the application behaviour of adaptive escape lighting rather than on the detailed requirements of building automation, detection infrastructure, communication networks, or other supporting technologies.

• Covers the adaptive application of emergency escape lighting systems.
• Addresses luminous flux output, escape directions, and lighting meaning/behaviour.
• Allows interaction with management and control systems.
• Excludes requirements for other involved components or systems.