全方面來了解一下什么是耐電痕化指數試驗儀
耐電(dian)(dian)痕化指數試驗儀方法可測量在(zai)電(dian)(dian)壓高達600 V時固(gu)體電(dian)(dian)氣絕(jue)緣材料在(zai)電(dian)(dian)場作用(yong)下表面暴露于含雜(za)質的水(shui)時的相(xiang)對耐電(dian)(dian)痕化性能。
當將(jiang)電(dian)(dian)壓施加(jia)到放在(zai)材料表面(mian)上規(gui)定的電(dian)(dian)極(ji)裝置之(zhi)間(jian)，且電(dian)(dian)解(jie)液(ye)以(yi)規(gui)定的時間(jian)間(jian)隔滴到兩電(dian)(dian)極(ji)之(zhi)間(jian)時，在(zai)此試驗情況下(xia)可能產(chan)生電(dian)(dian)痕化。引(yin)起材料破壞所必需的液(ye)滴數隨著施加(jia)電(dian)(dian)壓的減小而增加(jia)，且在(zai)低(di)于某一限值時，不發生電(dian)(dian)痕化。
耐電痕化指數(shu)試驗儀當(dang)材料在高試驗電壓下也未電痕時(shi)(shi)，可(ke)以(yi)有不同程度的腐(fu)蝕，且(qie)腐(fu)蝕深度能測(ce)出。某些(xie)材料能在試驗時(shi)(shi)燃(ran)燒。
漏電(dian)(dian)(dian)起痕試(shi)驗儀儀適用(yong)于(yu)照明設備、低壓(ya)電(dian)(dian)(dian)器(qi)、家用(yong)電(dian)(dian)(dian)器(qi)、機(ji)床(chuang)電(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)機(ji)、電(dian)(dian)(dian)動工(gong)具、電(dian)(dian)(dian)子儀器(qi)、電(dian)(dian)(dian)工(gong)儀表、信息技術(shu)設備的(de)研究(jiu)、生(sheng)產和(he)質檢部門，也適用(yong)于(yu)絕緣材料、工(gong)程塑料、電(dian)(dian)(dian)氣連接件、輔件行業等模擬仿真試(shi)驗。
耐電痕化(hua)指數試(shi)驗(yan)(yan)儀的實驗(yan)(yan)原(yuan)理
漏電(dian)(dian)起痕試驗是(shi)在(zai)固(gu)體絕緣(yuan)材料表面上，在(zai)規(gui)定尺寸(2mm×5mm) 的鉑(bo)電(dian)(dian)極之(zhi)間，施加某一電(dian)(dian)壓并定時(30s)定高度(du)(35mm)滴下(xia)規(gui)定液(ye)滴體積的導(dao)電(dian)(dian)液(ye)體(0.1%NH 4CL)，用(yong)以評(ping)價固(gu)體絕緣(yuan)材料表面在(zai)電(dian)(dian)場(chang)和潮濕或污染介質聯合作用(yong)下(xia)的耐漏電(dian)(dian)性能，測定其相比電(dian)(dian)痕化(hua)指數(CT1) 和耐電(dian)(dian)痕化(hua)指數(PT1) 。
