高壓數顯(xian)直流驗電器
一、直流數顯驗(yan)電器概述:
高壓直流驗電(dian)器是我公(gong)(gong)司(si)(si)采(cai)用先(xian)進(jin)元器件,獨立(li)研(yan)制的產品,性能(neng)可(ke)靠。所有參數(shu)為我公(gong)(gong)司(si)(si)企業標(biao)準。
高(gao)壓(ya)數顯直(zhi)流(liu)驗(yan)電(dian)器,其指示器與操(cao)作桿都應用交流(liu)驗(yan)電(dian)器的結構與工藝(yi),所不同之處在于直(zhi)流(liu)驗(yan)電(dian)器操(cao)作桿
上增(zeng)設了數(shu)顯電壓(ya)表及接(jie)地(di)引(yin)下插孔,用于(yu)連接(jie)接(jie)地(di)線,接(jie)地(di)端(duan)沒有正(zheng)負極之分。
二、參數:(直流)
額定電壓: ± 1.5 KV, 啟動電壓 : ± 0.001 KV。
限制耐壓 : ± 1.9 KV。,操(cao)作桿(gan)耐壓: 45 KV/1min。
三、直流驗電器使用(yong)環境條件:
直流驗電(dian)器環(huan)境溫度:-25℃~+55℃
直流驗(yan)電器使用場合:戶(hu)內(nei)和戶(hu)外無陰雨(yu)天(tian)氣,相對濕度(du)小于85%。
四、直流驗電(dian)器使用方法及注(zhu)意(yi)事項:
1. 為保證人身和(he)設(she)備的安全,確保驗電(dian)器(qi)的完好性,驗電(dian)器(qi)應存放在空(kong)氣(qi)流通、環(huan)境干燥的場所。
2.驗(yan)電操(cao)作前(qian)應(ying)對驗(yan)電器進(jin)行自檢,方(fang)法是:打開(kai)電源開(kai)關數顯表應(ying)該很快歸零。若無指示時不得(de)進(jin)行驗(yan)電操(cao)作。驗(yan)電操(cao)作前(qian)還須檢查接地(di)引下線是否完好,接觸(chu)點是否可靠。
3.驗電操作順序為:
(1)拉伸所有(you)絕緣操(cao)作(zuo)桿,使其拉足并(bing)定位。將數顯(xian)表卡在(zai)絕緣桿第二(er)節底部標志線(xian)位置。
(2)將(jiang)測試線上(shang)端的插頭可靠地插進(jin)首節桿末端的插孔內(nei),另一端插到(dao)數顯表(biao)紅色測試插孔內(nei)。
(3)將接地引下線的插(cha)頭插(cha)到數顯表黑色(se)插(cha)孔內(nei),另一端可靠地夾在良好的接地軌或(huo)極上。
(4)操作人員應先(xian)將該驗電器(qi)在有電部(bu)位上驗電,證明(ming)該驗電器(qi)性能完好(hao),然后在施(shi)工部(bu)位上驗電,確認(ren)施(shi)工部(bu)位是否帶電。
注(zhu)意:驗電(dian)(dian)器應(ying)(ying)注意(yi)在(zai)干燥場合保(bao)存,顯示不正(zheng)常(chang)時應(ying)(ying)首先考慮(lv)更(geng)換電(dian)(dian)池。數顯表內(nei)電(dian)(dian)池半年應(ying)(ying)該更(geng)換,以防(fang)電(dian)(dian)池漏夜(ye)損壞元件。
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上海旺平(ping)電氣(qi)有限公(gong)司