安規綜合測試儀主要是用來檢測電器產品是否漏電、是否接地良好、會不會傷害人身安全的專用測量儀器,主要檢測項目有耐電壓、泄漏電流、絕緣電阻和接地電阻。
用途將(jiang)(jiang)一規(gui)定交流(liu)或直流(liu)高(gao)壓(ya)(ya)施(shi)加(jia)在電(dian)(dian)(dian)器(qi)帶(dai)電(dian)(dian)(dian)部分(fen)和非(fei)帶(dai)電(dian)(dian)(dian)部分(fen)(一般為外殼)之間以檢查電(dian)(dian)(dian)器(qi)的(de)絕(jue)緣(yuan)材(cai)料(liao)所(suo)能承受(shou)耐壓(ya)(ya)能力的(de)試驗。電(dian)(dian)(dian)器(qi)在長(chang)期工作(zuo)(zuo)(zuo)中,不僅要承受(shou)額定工作(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)的(de)作(zuo)(zuo)(zuo)用,還要承受(shou)操作(zuo)(zuo)(zuo)過(guo)(guo)程中引起短時(shi)間的(de)高(gao)于(yu)額定工作(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)的(de)過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)作(zuo)(zuo)(zuo)用(過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)值(zhi)可能會(hui)高(gao)于(yu)額定工作(zuo)(zuo)(zuo)電(dian)(dian)(dian)壓(ya)(ya)值(zhi)的(de)好幾倍)。在這些電(dian)(dian)(dian)壓(ya)(ya)的(de)作(zuo)(zuo)(zuo)用下,電(dian)(dian)(dian)氣絕(jue)緣(yuan)材(cai)料(liao)的(de)內部結構將(jiang)(jiang)發生變化。當過(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)強度達到某(mou)一定值(zhi)時(shi),就會(hui)使材(cai)料(liao)的(de)絕(jue)緣(yuan)擊穿,電(dian)(dian)(dian)器(qi)將(jiang)(jiang)不能正常運行,操作(zuo)(zuo)(zuo)者就可能觸電(dian)(dian)(dian),危及人身安全。
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