電(dian)(dian)機耐(nai)壓(ya)(ya)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)，又叫電(dian)(dian)氣(qi)(qi)絕(jue)(jue)緣(yuan)(yuan)強度試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)儀(yi)(yi)，或(huo)叫介質強度測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)，也有稱(cheng)介質擊穿裝(zhuang)置(zhi)、絕(jue)(jue)緣(yuan)(yuan)強度測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)、高(gao)(gao)壓(ya)(ya)實(shi)驗(yan)(yan)(yan)(yan)儀(yi)(yi)、高(gao)(gao)壓(ya)(ya)擊穿裝(zhuang)置(zhi)、耐(nai)壓(ya)(ya)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)儀(yi)(yi)等。將(jiang)一(yi)規定(ding)(ding)交流或(huo)直(zhi)(zhi)流高(gao)(gao)壓(ya)(ya)施加(jia)在(zai)(zai)(zai)電(dian)(dian)器(qi)(qi)(qi)帶(dai)電(dian)(dian)部(bu)分和(he)非帶(dai)電(dian)(dian)部(bu)分（一(yi)般為外殼）之間以檢查電(dian)(dian)器(qi)(qi)(qi)的(de)絕(jue)(jue)緣(yuan)(yuan)材料所(suo)能(neng)(neng)承(cheng)受(shou)耐(nai)壓(ya)(ya)能(neng)(neng)力的(de)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)。電(dian)(dian)器(qi)(qi)(qi)在(zai)(zai)(zai)長期工(gong)作中，不(bu)僅要承(cheng)受(shou)額定(ding)(ding)工(gong)作電(dian)(dian)壓(ya)(ya)的(de)作用(yong)(yong)，還要承(cheng)受(shou)操作過(guo)程中引(yin)起短時間的(de)高(gao)(gao)于(yu)額定(ding)(ding)工(gong)作電(dian)(dian)壓(ya)(ya)的(de)過(guo)電(dian)(dian)壓(ya)(ya)作用(yong)(yong)（過(guo)電(dian)(dian)壓(ya)(ya)值(zhi)可能(neng)(neng)會高(gao)(gao)于(yu)額定(ding)(ding)工(gong)作電(dian)(dian)壓(ya)(ya)值(zhi)的(de)好(hao)幾倍）。在(zai)(zai)(zai)這些電(dian)(dian)壓(ya)(ya)的(de)作用(yong)(yong)下，電(dian)(dian)氣(qi)(qi)絕(jue)(jue)緣(yuan)(yuan)材料的(de)內部(bu)結構(gou)將(jiang)發生變化。當(dang)過(guo)電(dian)(dian)壓(ya)(ya)強度達到某(mou)一(yi)定(ding)(ding)值(zhi)時，就會使材料的(de)絕(jue)(jue)緣(yuan)(yuan)擊穿，電(dian)(dian)器(qi)(qi)(qi)將(jiang)不(bu)能(neng)(neng)正(zheng)常運行，操作者就可能(neng)(neng)觸電(dian)(dian)，危及人身(shen)安全。電(dian)(dian)氣(qi)(qi)安全主要測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)指(zhi)(zhi)標(biao)包括(kuo)交/直(zhi)(zhi)流耐(nai)壓(ya)(ya)、絕(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻、泄漏電(dian)(dian)流、接(jie)地電(dian)(dian)阻等。交/直(zhi)(zhi)流耐(nai)壓(ya)(ya)試(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(yan)用(yong)(yong)于(yu)檢驗(yan)(yan)(yan)(yan)產(chan)品在(zai)(zai)(zai)實(shi)際工(gong)作狀態下的(de)電(dian)(dian)氣(qi)(qi)安全性(xing)能(neng)(neng)，是(shi)(shi)檢驗(yan)(yan)(yan)(yan)設備電(dian)(dian)氣(qi)(qi)安全性(xing)能(neng)(neng)的(de)重要指(zhi)(zhi)標(biao)之一(yi)。目(mu)(mu)前(qian)市(shi)場上所(suo)見的(de)耐(nai)壓(ya)(ya)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)采用(yong)(yong)GB4706（等同IEC1010）標(biao)準，使用(yong)(yong)較(jiao)多的(de)是(shi)(shi)臺式(shi)結構(gou)的(de)單項測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)指(zhi)(zhi)標(biao)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)器(qi)(qi)(qi)，不(bu)能(neng)(neng)滿足用(yong)(yong)戶需要多指(zhi)(zhi)標(biao)綜合測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)的(de)需求；而且(qie)目(mu)(mu)前(qian)市(shi)場上的(de)耐(nai)壓(ya)(ya)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)儀(yi)(yi)多采用(yong)(yong)的(de)是(shi)(shi)傳(chuan)統的(de)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)方法，測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)精度不(bu)高(gao)(gao)，采用(yong)(yong)的(de)技術(shu)和(he)主要性(xing)能(neng)(neng)指(zhi)(zhi)標(biao)與*水平有一(yi)定(ding)(ding)的(de)差距，不(bu)能(neng)(neng)*目(mu)(mu)前(qian)發展(zhan)的(de)電(dian)(dian)氣(qi)(qi)安全性(xing)能(neng)(neng)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)工(gong)作的(de)需要。因(yin)此研究(jiu)符(fu)合標(biao)準的(de)采用(yong)(yong)*技術(shu)和(he)具有更好(hao)性(xing)能(neng)(neng)指(zhi)(zhi)標(biao)的(de)耐(nai)壓(ya)(ya)測(ce)(ce)(ce)(ce)試(shi)(shi)(shi)(shi)(shi)系統具有重要意(yi)義(yi)。

電(dian)(dian)機(ji)耐(nai)壓(ya)測試(shi)儀主(zhu)要用于(yu)聚乙烯(xi)絕緣(yuan)的電(dian)(dian)力電(dian)(dian)纜的耐(nai)壓(ya)測試(shi)，也可用于(yu)大型電(dian)(dian)力變壓(ya)器的絕緣(yuan)耐(nai)壓(ya)測試(shi)。耐(nai)壓(ya)測試(shi)儀采用超低頻高壓(ya)測試(shi)電(dian)(dian)力電(dian)(dian)纜的耐(nai)壓(ya)是一種新的方法。