The basis for the selection of luminaires in fire evacuation lighting is introduced,the selection,installation height,and arrangement spacing of light sources in fire evacuation lighting are analyzed,and control light source is defined.Besides,the calculation formula for the minimum horizontal illuminance on the ground for different installation heights and spacing is derived from such light source parameters,and thus appropriate installation spacing for emergency lighting luminaires under different standards for evacuation illuminance are given.Meanwhile,a brief discussion is conducted on the illuminance uniformity of evacuation lighting,and the number of luminaires provided in the emergency lighting circuit is analyzed based on battery characteristics and the voltage drop of DC power supply.
关键词
消防疏散照明/消防应急照明灯具/灯具布置/光强分布/照度计算/照度均匀度/蓄电池/电压降
Key words
fire evacuation lighting/fire emergency lighting luminaire/luminaire arrangement/distribution of luminous intensity/illuminance calculation/illuminance uniformity/storage battery/voltage drop
维普
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