Emergency lighting is just one component of a building’s life safety systems, but perhaps one of the most important, which is why NBC makes its installation mandatory. It provides a minimum level of visibility to help direct the building’s occupants safely out in desperate moments. Moreover, it also helps personnel and emergency responders locate safety equipment, perform safety functions, or shut down hazardous equipment or operations.
An emergency light can be defined as a battery-backed lighting device that switches on automatically when a building experiences a power outage or when a lighting circuit fails. The purpose of emergency lighting is to provide a decent level of illumination on or along the egress path that allows the occupants of the building to safely exit in quick time in the event of a fire, blackout or mains power failure.