一、防雷排插有必要嗎
裝防雷排插是有必要的。
雷(lei)擊后可(ke)使導體瞬間感應極大的(de)(de)電(dian)壓和電(dian)流(liu),對建筑(zhu)物(wu)內(nei)的(de)(de)用電(dian)設(she)備造成傷害。而(er)避雷(lei)針(zhen)只能(neng)防直(zhi)擊雷(lei),且只能(neng)對建筑(zhu)物(wu)形成保護。它在(zai)防直(zhi)擊雷(lei)的(de)(de)時候,還會泄放大量感應雷(lei),感應雷(lei)會在(zai)瞬間沿著天線(xian)、饋線(xian)、信號線(xian)和電(dian)源線(xian)等侵入電(dian)器(qi)內(nei)部,給電(dian)器(qi)帶(dai)來巨大的(de)(de)傷害。
而防(fang)雷(lei)(lei)插座具有(you)防(fang)雷(lei)(lei)擊(ji)保(bao)護功能,有(you)效吸收來自(zi)電(dian)源(yuan)系統(tong)的電(dian)涌(yong)脈沖,確保(bao)電(dian)器(qi)在惡(e)劣環境(jing)(jing)下(xia)和(he)多(duo)雷(lei)(lei)地(di)區(qu)的安全使(shi)用。廣(guang)泛應用于(yu)(yu)電(dian)子設備、電(dian)子電(dian)器(qi)的場所。防(fang)雷(lei)(lei)插座將電(dian)源(yuan)供(gong)電(dian)系統(tong)的雷(lei)(lei)電(dian)、浪涌(yong)脈沖予以(yi)快速(su)吸收;辦公和(he)家電(dian)設備將免于(yu)(yu)被浪涌(yong)電(dian)流(liu)侵害,減少電(dian)器(qi)在雷(lei)(lei)電(dian)環境(jing)(jing)下(xia)被雷(lei)(lei)擊(ji)損壞的概(gai)率(lv)。
二、防雷排插原理是什么
市(shi)面上防(fang)雷的方式主要有三種:
1、將壓(ya)(ya)(ya)敏電(dian)阻(zu)(zu)器(qi)(qi)(qi)(qi)并接于(yu)被(bei)保(bao)護的(de)IC或(huo)設(she)(she)備電(dian)路(lu)上(shang),當電(dian)壓(ya)(ya)(ya)瞬間高于(yu)某一數值(zhi)時(shi)(shi),壓(ya)(ya)(ya)敏電(dian)阻(zu)(zu)器(qi)(qi)(qi)(qi)阻(zu)(zu)值(zhi)迅速下降,導(dao)通(tong)大電(dian)流,從(cong)而保(bao)護IC或(huo)電(dian)器(qi)(qi)(qi)(qi)設(she)(she)備;當電(dian)壓(ya)(ya)(ya)低于(yu)壓(ya)(ya)(ya)敏電(dian)阻(zu)(zu)器(qi)(qi)(qi)(qi)工作電(dian)壓(ya)(ya)(ya)值(zhi)時(shi)(shi),壓(ya)(ya)(ya)敏電(dian)阻(zu)(zu)器(qi)(qi)(qi)(qi)阻(zu)(zu)值(zhi)極(ji)高,近乎開(kai)路(lu),因(yin)而不(bu)會影響器(qi)(qi)(qi)(qi)件或(huo)電(dian)器(qi)(qi)(qi)(qi)設(she)(she)備的(de)正常(chang)工作。
2、將(jiang)壓(ya)敏(min)電(dian)(dian)阻并聯在電(dian)(dian)路(lu)中(zhong)使用,當L-N時,電(dian)(dian)阻兩端的(de)電(dian)(dian)壓(ya)發生急劇(ju)變化,在額定的(de)范圍內,會吸(xi)收高壓(ya),并通過陶瓷放電(dian)(dian)管釋(shi)放;當超出額定范圍時,電(dian)(dian)阻短(duan)路(lu),形成短(duan)路(lu)信號,導致(zhi)使用場所的(de)空(kong)氣(qi)保(bao)護開關分斷(duan),起到保(bao)護電(dian)(dian)器和設備的(de)作用。
3、通(tong)過(guo)陶(tao)瓷放(fang)電(dian)管將(jiang)雷(lei)(lei)電(dian)與(yu)雷(lei)(lei)電(dian)電(dian)磁脈沖的能(neng)(neng)(neng)量通(tong)過(guo)大地泄(xie)放(fang),并且應符合層(ceng)次性(xing)原則(ze),即(ji)盡可能(neng)(neng)(neng)多、盡可能(neng)(neng)(neng)遠地將(jiang)多余能(neng)(neng)(neng)量在引入(ru)電(dian)路系統或者通(tong)信系統之前泄(xie)放(fang)入(ru)地;層(ceng)次性(xing)就是按照所設立(li)的防(fang)雷(lei)(lei)保(bao)護(hu)區分(fen)層(ceng)次對雷(lei)(lei)電(dian)能(neng)(neng)(neng)量進行削弱(ruo)。