Emergency lights should be installed by a qualified electrician and can usually be either ceiling or wall mounted.
The lights are connected to the buildings mains power circuits which keeps the backup battery charged. In the event of a power failure the emergency light will continue to operate under the power of the back-up battery.
Emergency lights are usually installed with a test switch (fish key switch) on their circuit which allows them to be tested by interrupting the mains power supply to the lights only.
Reviewed: 01/02/2023 (doc:540 V1.0). Our articles are reviewed regularly. However, any changes made to standards or legislation following the review date will not have been considered. Please note that we provide abridged, easy-to-understand guidance. To make detailed decisions about your fire safety provisions, you might require further advice or need to consult the full standards and legislation.
