檢視灭弧介质的原始碼

{| class="https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E7%81%AD%E5%BC%A7%E4%BB%8B%E8%B4%A8&step_word=&hs=0&pn=818&spn=0&di=7146857200093233153&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=0&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=undefined&cs=2851109802%2C2032788867&os=1896949431%2C4177550716&simid=3376841269%2C279425005&adpicid=0&lpn=0&ln=1843&fr=&fmq=1668601789229_R&fm=&ic=undefined&s=undefined&hd=undefined&latest=undefined&copyright=undefined&se=&sme=&tab=0&width=undefined&height=undefined&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2Fimg76.5648.cc%2F9%2F20201112%2F637407717744341356770.jpg%26refer%3Dhttp%3A%2F%2Fimg76.5648.cc%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Dauto%3Fsec%3D1671193897%26t%3D044c6287b307c518addcac90ade2206f&fromurl=ippr_z2C%24qAzdH3FAzdH3Fooo_z%26e3Bcm9b_z%26e3BvvAzdH3Ffp8a0nnAzdH3FP6517vp_0bcddc_z%26e3Bip4s&gsm=32a&rpstart=0&rpnum=0&islist=&querylist=&nojc=undefined&dyTabStr=MCw0LDEsNSwzLDYsMiw3LDgsOQ%3D%3D" style="float:right; margin: -10px 0px 10px 20px; text-align:left"
|<center>'''断路器'''<br><img
src=" https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fimg76.5648.cc%2F9%2F20201112%2F637407717744341356770.jpg&refer=http%3A%2F%2Fimg76.5648.cc&app=2002&size=f9999,10000&q=a80&n=0&g=0n&fmt=auto?sec=1671193897&t=044c6287b307c518addcac90ade2206f" width="280"></center><small>  圖片來自百度</small> 
|}
开关电器触头本身及触头周围的介质中含有大量可被游离的电子，当分断的触头间存在足够大的外施电压，而且[[电路电流]]也达到最小生弧电流时，就会强烈游离而形成电弧。电弧是高温高导电率的游离气体，它不仅对触头有很大的破坏作用，而且使断开电路的时间延长。因此需要将[[电弧]]进行消灭，简称灭弧。灭弧有多种方法，大多是使用某种气体或者液体来承担主要灭弧工作，这些气体或者液体（甚至是真空）就被称为灭弧介质。