How much is the distance between fire emergency lights?
The exit mark light is no less than 2m, and is installed above the evacuation exit and the side of the stair mouth.
The evacuation lighting consists of the safety exit sign light and the evacuation sign light
Emergency lighting in the normal power supply power source, by the conversion time: evacuation lighting is less than or equal to 15s; standby lighting is less than or equal to 15s (financial exchange shop is less than or equal to 15s); safety lighting is less than or equal to 0.5s.
The power supply of the emergency lighting lamp, besides the normal power supply, has another power supply, or is powered by a diesel generator set which is independent of the normal power supply, or supplied by a battery cabinet or a power supply type emergency lamp.
10 meters or so, the maximum can not exceed 20 meters
