Emergency lighting is a self-descriptive term and illuminate for an emergency situation when the main power supply fails. Without the mains power, it may lead to sudden darkness and a possible danger to the occupants, either through physical danger or psychological panic.
Emergency lights provide lighting when the mains power fails. It’s powered by a battery that’s charged from mains supply and provide back up for emergency lighting. In the event of a power outage, emergency lighting will light on in corridors, stairwells, ramps, escalators, aisles, and exit passageways to ensure that people could stay calm and safely evacuate the premises.
Normally emergency lighting is required to operate fully automatically and give illumination of a sufficiently high level to enable persons of all ages to evacuate the premises safely. Most new buildings now have emergency lighting installed during construction, the design and type of equipment is normally specified by the relevant local authority, architect or consultant.
Non-maintained – only lights on for a specific duration when the power supply fails.
Maintained – Maintained emergency lighting is on all the time no matter the mains power is on or off. Maintained emergency lights are mains powered and used as normal lighting in our daily life to help illuminate.
Sustained –The emergency light has a separate light source for both mains and emergency mode, for Emergency Lighting.
