在zai過guo去qu的de農nong村cun，每mei到dao雷lei電dian天tian氣qi就jiu會hui斷duan電dian

，除chu了le避bi免mian雷lei電dian所suo帶dai來lai的de電dian路lu損sun壞huai外wai，也ye避bi免mian了le很hen多duo防fang雷lei意yi識shi不bu強qiang的de人ren，因yin為wei雷lei電dian天tian氣qi不bu當dang使shi用yong電dian器qi而er造zao成cheng的de電dian器qi損sun壞huai。但dan是shi現xian在zai，不bu管guan是shi什shen麼me天tian氣qi
，除chu了le因yin為wei電dian路lu維wei修xiu而er引yin起qi的de停ting電dian之zhi外wai，雷lei電dian天tian氣qi根gen本ben就jiu不bu會hui出chu現xian斷duan電dian的de現xian象xiang，這zhe是shi為wei什shen麼me呢ne？就jiu是shi因yin為wei防fang雷lei器qi件jian的de存cun在zai
，當dang各ge種zhong防fang雷lei、防靜電、過壓、過(guo)流(liu)防(fang)護(hu)器(qi)件(jian)的(de)作(zuo)用(yong)逐(zhu)漸(jian)得(de)到(dao)肯(ken)定(ding)時(shi)，就(jiu)開(kai)始(shi)大(da)麵(mian)積(ji)的(de)作(zuo)用(yong)於(yu)實(shi)際(ji)的(de)電(dian)路(lu)防(fang)護(hu)中(zhong)，究(jiu)竟(jing)防(fang)雷(lei)器(qi)件(jian)陶(tao)瓷(ci)放(fang)電(dian)管(guan)是(shi)如(ru)何(he)作(zuo)用(yong)於(yu)電(dian)路(lu)防(fang)護(hu)的(de)呢(ne)？
 

 
 

我wo們men都dou知zhi道dao，當dang雷lei電dian擊ji中zhong電dian力li線xian路lu時shi，雷lei電dian流liu需xu經jing過guo電dian力li線xian路lu泄xie入ru大da地di。即ji使shi雷lei電dian沒mei有you擊ji中zhong電dian力li線xian路lu，當dang雷lei擊ji發fa生sheng後hou，導dao線xian上shang感gan應ying的de異yi號hao電dian荷he失shi去qu束shu縛fu
，向xiang導dao線xian兩liang則ze流liu動dong。這zhe些xie電dian流liu通tong過guo線xian路lu侵qin入ru變bian電dian站zhan或huo襲xi擊ji電dian氣qi設she備bei
，在zai設she備bei上shang形xing成cheng過guo電dian壓ya。當dang過guo電dian壓ya高gao於yu設she備bei的de額e定ding雷lei電dian衝chong擊ji耐nai受shou電dian壓ya時shi，設she備bei就jiu會hui損sun壞huai。將jiang陶tao瓷ci放fang電dian管guan並bing聯lian於yu電dian路lu中zhong，當dang加jia到dao兩liang電dian極ji端duan的de電dian壓ya達da到dao使shi氣qi體ti放fang電dian管guan內nei的de氣qi體ti擊ji穿chuan時shi，氣qi體ti放fang電dian管guan開kai始shi放fang電dian
，由you高gao阻zu抗kang變bian成cheng低di阻zu抗kang
，使shi浪lang湧yong電dian壓ya迅xun速su短duan路lu至zhi接jie近jin零ling電dian壓ya，並bing將jiang過guo電dian流liu釋shi放fang入ru地di
，從cong而er對dui後hou續xu電dian路lu起qi到dao保bao護hu作zuo用yong。

       

陶tao瓷ci放fang電dian管guan常chang用yong於yu多duo級ji保bao護hu電dian路lu中zhong的de第di一yi級ji或huo前qian兩liang級ji

，起qi泄xie放fang雷lei電dian暫zan態tai過guo電dian流liu和he限xian製zhi過guo電dian壓ya作zuo用yong。放fang電dian管guan是shi通tong過guo將jiang電dian壓ya限xian製zhi在zai較jiao低di的de水shui平ping

，從cong而er起qi到dao保bao護hu作zuo用yong。陶tao瓷ci放fang電dian管guan是shi目mu前qian應ying用yong最zui廣guang泛fan的de一yi種zhong防fang雷lei器qi件jian，無wu論lun是shi交jiao直zhi流liu電dian源yuan的de防fang雷lei還hai是shi各ge種zhong信xin號hao的de防fang雷lei
，都dou能neng起qi到dao很hen好hao的de保bao護hu作zuo用yong。