拉动一只未工作于电路的拉线开关,其工作部分会发出清脆的响声(这里称为原音),而将它工作于不同性质的电路,所发出的声响则又不一样。分析这些声响对理解电工基础是有帮助的。将它接于白炽灯电路中,所发生的声音与“原音”几乎完全相同(未超过开关的规定使用范围),观看断口处稍有火花;而接于日光灯电路中,声音则低沉,并带有“噗噗”声,断口处电弧明显。如何解释这 Pulling a cable switch that does not work in the circuit, its working part will make a crisp sound (here called the original sound), and it works in different nature of the circuit, the sound is not the same. Analyzing these sounds is helpful to understand the basics of electricians. It will be connected to the incandescent lamp circuit, the sound occurs and “original sound ” is almost the same (not exceeding the scope of the switch to use), watch the fracture at a slight spark; and connected to the fluorescent circuit, the sound is low, And with “puff puff ” sound, the arc at the fracture is obvious. How to explain this