Sustained Emergency Lighting Definition

Sustained when a fitting has two or more lamps at least one lamp.
Sustained emergency lighting definition. A luminaire that can act as the mains room light and as an emergency light. Emergency lights are standard in new commercial and high occupancy residential buildings such as college dormitories apartments and hotels. Standby lighting the part of emergency lighting which may be provided to enable normal activities to continue in the event of a mains supply failure. This is a luminaire in which the emergency lamps are lit all the time.
The lights are typically dimmed when the premises are occupied and the emergency escape lighting prevents total darkness. Non maintained emergency lighting is a luminaire made solely for emergency use. It can be turned off on via the room light switch and operate in the event of a power circuit failure. An emergency luminaire without its own batteries which is designed to work in conjunction with a central battery system.
In emergency mode stays lit but at a lower light level non maintained comes on only in emergency mode this is a luminaire in which the emergency lamps are lit all the time and operates as. Switchable maintained emergency light. An emergency light is a battery backed lighting device that switches on automatically when a building experiences a power outage. This was because a fluorescent lamp could easily fail and so if you had a sustained light fitting you were always sure of lighting just when you needed it.
Sustained emergency luminaire see combined emergency luminaire. Maintained mode is generally employed in places of assembly such as theatres cinemas clubs etc. See combined emergency luminaire. With most emergency lights moved to led you.
What is non maintained emergency lighting.