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当今时代是节能的时代,电光源发展的主要方向是提高光源的发光效率,节省电力消耗,推广使用节能光源。当前国外节能光源有两大方向。一是用高光效光源代替原来效率低的光源;二是采用光源本身节能的办法,不降低亮度,而减少用电量。对于第一种办法,就是用效率高的荧光灯或高压钠灯、低压钠灯取代效率低的白炽灯和汞灯。将白炽灯换成荧光灯可以节电75％;而将高压钠灯代替汞灯可以节电60％。第二种办法比第一种办法节能效果小,但是广泛应用也可取得很大的节能效果。如双螺旋普灯比单螺旋普灯节电效果只有6％,但每亿只双螺旋灯泡代替单螺旋灯泡全年就可节电4亿度左右。下面简要介绍一下国外节能光源的节电效果。
Today’s era is energy-saving era, the main direction of the development of electric light is to improve the luminous efficiency of light sources, saving electricity consumption, promote the use of energy-saving light sources. The current foreign energy-saving light in two directions. First, the use of high-efficiency light source instead of the original low-efficiency light source; Second, the light source itself uses energy-saving approach, does not reduce the brightness, and reduce power consumption. The first is to replace inefficient incandescent and mercury lamps with high-efficiency fluorescent or high-pressure sodium lamps and low-pressure sodium lamps. Replacing an incandescent lamp with a fluorescent lamp saves 75%; replacing a high-pressure sodium lamp with a mercury lamp saves 60%. The second approach is less energy efficient than the first approach, but a wide range of applications can achieve significant energy savings. Such as double-helix plutonium light than the single-coil light energy-saving effect is only 6%, but every single double-helix bulb instead of a single-helix bulb can save 400 million degrees around the year. The following brief introduction to the energy-saving effect of foreign energy-saving light source.