在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)輸(shu)(shu)送(song)(song)系(xi)(xi)統工作(zuo)(zuo)(zuo)中(zhong)(zhong)，系(xi)(xi)統中(zhong)(zhong)某處電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)值大(da)大(da)超(chao)過(guo)(guo)(guo)設(she)(she)備(bei)的(de)(de)(de)(de)(de)(de)正常工作(zuo)(zuo)(zuo)時的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)這(zhe)時會(hui)(hui)形成過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)。過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)發(fa)生理由和(he)效果(guo)機(ji)理一(yi)般會(hui)(hui)將過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)分(fen)(fen)為(wei)內部(bu)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)和(he)外部(bu)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)。內部(bu)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)是(shi)由內部(bu)工作(zuo)(zuo)(zuo)方(fang)式(shi)發(fa)生轉(zhuan)變而變為(wei)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)分(fen)(fen)別為(wei)暫(zan)態過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)、諧振(zhen)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)和(he)操作(zuo)(zuo)(zuo)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)；外部(bu)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)是(shi)指雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，即電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)輸(shu)(shu)送(song)(song)系(xi)(xi)統內的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣設(she)(she)備(bei)及建筑遭受雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)直擊或雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)感應(ying)時而的(de)(de)(de)(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)。這(zhe)樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)輸(shu)(shu)送(song)(song)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)會(hui)(hui)形成設(she)(she)備(bei)絕(jue)緣損壞(huai)而形成長期停(ting)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，危及到(dao)(dao)人身(shen)(shen)與(yu)產業安(an)全。為(wei)了(le)應(ying)對過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)故(gu)(gu)障(zhang)采取辦法(fa)來(lai)限制和(he)防備(bei)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)輸(shu)(shu)送(song)(song)系(xi)(xi)統中(zhong)(zhong)氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)維護(hu)(hu)(hu)更(geng)適(shi)用于雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)，但是(shi)對工頻過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)、諧振(zhen)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)和(he)操作(zuo)(zuo)(zuo)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)也能(neng)起到(dao)(dao)很好的(de)(de)(de)(de)(de)(de)維護(hu)(hu)(hu)效果(guo)。在避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)進展中(zhong)(zhong)維護(hu)(hu)(hu)空(kong)隙(xi)、管(guan)型(xing)(xing)(xing)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)、閥(fa)型(xing)(xing)(xing)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)三個階段，而閥(fa)型(xing)(xing)(xing)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)中(zhong)(zhong)運(yun)用更(geng)加(jia)廣泛(fan)，氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)長處有:氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)維護(hu)(hu)(hu)動作(zuo)(zuo)(zuo)不會(hui)(hui)出現(xian)擊穿現(xian)象，閥(fa)片的(de)(de)(de)(de)(de)(de)“導通(tong)”和(he)“關斷”起到(dao)(dao)了(le)良(liang)好的(de)(de)(de)(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)維護(hu)(hu)(hu)效果(guo)，氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)輸(shu)(shu)送(song)(song)系(xi)(xi)統的(de)(de)(de)(de)(de)(de)安(an)全影響；串(chuan)聯(lian)空(kong)隙(xi)氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)由氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)閥(fa)片組與(yu)空(kong)隙(xi)串(chuan)聯(lian)而成，結構功能(neng)安(an)穩的(de)(de)(de)(de)(de)(de)并(bing)聯(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻減輕(qing)了(le)閥(fa)片的(de)(de)(de)(de)(de)(de)擔負(fu)，以(yi)而使其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)耐受性良(liang)好，不有著本身(shen)(shen)過(guo)(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)缺乏(fa)；氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)維護(hu)(hu)(hu)動作(zuo)(zuo)(zuo)只泄放(fang)雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流，雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流泄放(fang)（小于100μs）結束，立即康復(fu)到(dao)(dao)能(neng)再次動作(zuo)(zuo)(zuo)的(de)(de)(de)(de)(de)(de)，故(gu)(gu)氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)具有連續雷(lei)(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)維護(hu)(hu)(hu)才能(neng)；氧(yang)(yang)(yang)化(hua)(hua)(hua)鋅(xin)(xin)避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)使用壽(shou)數相對較長，一(yi)般可到(dao)(dao)達(da)20年，而一(yi)般避(bi)(bi)(bi)(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)(lei)器(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)壽(shou)數在10年左右甚至更(geng)低。