Fire emergency light Knowledge Forum

Fire emergency lighting is a kind of lighting tool used in fire emergency, which is used to provide lighting for fire scene and fire rescue and evacuation after the fire. 

Installation of fire emergency lamp includes a portable installation, wall mounted and hanging installation. 

Building regulations in China  makes fire emergency lighting applicable range and time are clearly defined. For example, staircases, auditorium, exhibition hall, the basement good public evacuation aisle lamp need installation of fire emergency luminaries. In addition, new GB provisions of fire emergency lighting system time should be greater than 90 minutes, and not less than marked on the luminaire for emergency lighting time.

There are two emergency lighting power supply mode, , one is independent control of power type, the other is centralized power supply centralized control. Independent control of the working principle of type is when the power supply is normal, to charge a spare battery power supply system corresponding to the emergency lights, once the failure of the normal power supply system, emergency light battery backup is battery will automatically supply. Centralized power centralized control type of fire emergency luminaries no independent power supply, when the failure of the normal power supply system, centralized power supply system power supply. First power supply is mainly used in our country at the present time, that comes independent control of power type. 

Fire emergency light wiring way for two-wire and three wire system. Two-wire system only when there is a power cut will be bright and the rest of the time does not work. Three line system can be manually controlled to normal lighting, when power cuts will immediately become bright, regardless of its original is in a state of illumination.

(editor:Lily)