一、防雷排插有必要嗎

裝防雷排插是有必要的。

雷(lei)(lei)(lei)擊(ji)后可使導體瞬間(jian)感(gan)(gan)應極大(da)的(de)電壓和(he)電流(liu)，對建筑(zhu)物內(nei)(nei)的(de)用電設備(bei)造成(cheng)傷害(hai)。而避雷(lei)(lei)(lei)針(zhen)只(zhi)(zhi)能(neng)(neng)防直(zhi)擊(ji)雷(lei)(lei)(lei)，且只(zhi)(zhi)能(neng)(neng)對建筑(zhu)物形成(cheng)保(bao)護。它在防直(zhi)擊(ji)雷(lei)(lei)(lei)的(de)時候，還會(hui)(hui)泄(xie)放大(da)量(liang)感(gan)(gan)應雷(lei)(lei)(lei)，感(gan)(gan)應雷(lei)(lei)(lei)會(hui)(hui)在瞬間(jian)沿著天線、饋線、信號線和(he)電源線等侵入電器內(nei)(nei)部，給電器帶來(lai)巨大(da)的(de)傷害(hai)。

而防雷插座(zuo)具有防雷擊(ji)(ji)保護(hu)功能，有效吸收(shou)來自電(dian)(dian)(dian)源(yuan)系(xi)統的電(dian)(dian)(dian)涌(yong)脈沖，確保電(dian)(dian)(dian)器在(zai)(zai)惡劣環(huan)境下和(he)多雷地區的安全使用(yong)(yong)。廣泛(fan)應用(yong)(yong)于電(dian)(dian)(dian)子設備(bei)、電(dian)(dian)(dian)子電(dian)(dian)(dian)器的場所。防雷插座(zuo)將(jiang)電(dian)(dian)(dian)源(yuan)供電(dian)(dian)(dian)系(xi)統的雷電(dian)(dian)(dian)、浪涌(yong)脈沖予(yu)以快速吸收(shou)；辦公和(he)家電(dian)(dian)(dian)設備(bei)將(jiang)免(mian)于被(bei)浪涌(yong)電(dian)(dian)(dian)流(liu)侵害(hai)，減少(shao)電(dian)(dian)(dian)器在(zai)(zai)雷電(dian)(dian)(dian)環(huan)境下被(bei)雷擊(ji)(ji)損壞的概率。

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二、防雷排插原理是什么

市(shi)面上防雷的方式(shi)主要有三種(zhong)：

1、將壓(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)(qi)并接于(yu)被保護(hu)的(de)IC或設備(bei)電(dian)(dian)(dian)路上(shang)，當電(dian)(dian)(dian)壓(ya)瞬間(jian)高于(yu)某(mou)一數值(zhi)時，壓(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)(qi)阻(zu)值(zhi)迅速(su)下降(jiang)，導通大電(dian)(dian)(dian)流，從(cong)而保護(hu)IC或電(dian)(dian)(dian)器(qi)(qi)設備(bei)；當電(dian)(dian)(dian)壓(ya)低于(yu)壓(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)(qi)工(gong)作電(dian)(dian)(dian)壓(ya)值(zhi)時，壓(ya)敏(min)電(dian)(dian)(dian)阻(zu)器(qi)(qi)阻(zu)值(zhi)極(ji)高，近乎開路，因而不會影響器(qi)(qi)件或電(dian)(dian)(dian)器(qi)(qi)設備(bei)的(de)正常工(gong)作。

2、將(jiang)壓(ya)敏(min)電(dian)(dian)(dian)阻并聯在電(dian)(dian)(dian)路(lu)中使(shi)用(yong)，當L-N時，電(dian)(dian)(dian)阻兩端的電(dian)(dian)(dian)壓(ya)發生(sheng)急劇變化，在額定(ding)的范圍內，會吸收高壓(ya)，并通過(guo)陶瓷放電(dian)(dian)(dian)管釋放；當超出(chu)額定(ding)范圍時，電(dian)(dian)(dian)阻短(duan)路(lu)，形成(cheng)短(duan)路(lu)信號，導致(zhi)使(shi)用(yong)場(chang)所的空氣(qi)保護(hu)開(kai)關分斷，起到保護(hu)電(dian)(dian)(dian)器和設(she)備的作(zuo)用(yong)。

3、通過陶(tao)瓷放電管(guan)將雷電與雷電電磁脈沖的(de)能(neng)(neng)量通過大地泄放，并且(qie)應符合層次性(xing)原則，即(ji)盡可(ke)能(neng)(neng)多、盡可(ke)能(neng)(neng)遠地將多余(yu)能(neng)(neng)量在引(yin)入(ru)電路系(xi)(xi)統或(huo)者通信(xin)系(xi)(xi)統之前泄放入(ru)地；層次性(xing)就是按照所設(she)立的(de)防雷保(bao)護(hu)區分層次對(dui)雷電能(neng)(neng)量進(jin)行削弱。