The Regulatory Reform Fire Safety Order (FSO) 2005 took effect in England and Wales in October 2006.
These documents pull together all existing regulations and ultimately make the building owner/occupier responsible.
This includes emergency lighting.
Emergency lights illuminate the means of escape if the power fails. They are wired into the electric mains but also have a battery back up should the mains power fail.
Maintained Emergency Lighting
A lighting system in which all emergency lights remain illuminated at all times while the building is occupied or when there is mains lighting failure. The batteries will illuminate them for at least 1-3 hours should there be power failure (depending on application).
Non Maintained Emergency Lighting
Non maintained emergency lights will automatically illuminate if they is power failure.
All works conform to BS 5266 and BS 5588 (Emergency Lighting Regulations)