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目前,我国城市道路大致使用这几种照明灯:高压钠灯、金卤灯、节能荧光灯、LED灯、无极灯。各种照明光源,各有优势,如何选用,可从以下几个方面加以比较。1各种光源的工作原理(1)高压钠灯是弧光放电的灯泡,启动后电弧管两端电极之间产生电弧,由于电弧的高温作用使管内的液钠汞气受热蒸发成为汞蒸汽和钠蒸汽,阴极发射的电子在向阳极运动过程中,撞击放电物质的原子,使其获得能量
At present, China’s urban roads generally use these types of lighting: high-pressure sodium lamp, metal halide lamp, energy-saving fluorescent lamps, LED lights, lamp. A variety of lighting, each have their own advantages, how to choose from the following aspects to be compared. A variety of light source works (1) high-pressure sodium lamp arc discharge lamp, arcing arc electrode between the start after the arc between the arc due to the high temperature of the arc so that the tube of liquid sodium-sodium mercury vaporized into mercury vapor and sodium vapor , The electrons emitted by the cathode impact the atoms of the discharging substance during the movement to the anode so as to obtain the energy