一、兆歐表如何使用
1、用絕緣(yuan)良(liang)好的單根(gen)銅芯(xin)軟導線做兆歐表與被測試點(dian)之間的測量(liang)連(lian)接(jie)線,不能用絞合線。兩根(gen)測量(liang)連(lian)接(jie)線不可絞合,也不要接(jie)觸被測設備或線路的表面。
2、測(ce)量前,切斷被(bei)測(ce)設備(bei)或線路(lu)的電(dian)(dian)源,并(bing)將導電(dian)(dian)部分接地放(fang)電(dian)(dian),防止電(dian)(dian)容儲能放(fang)電(dian)(dian)傷人和燒(shao)壞儀(yi)表。然后擦干凈被(bei)測(ce)試點,以免影響(xiang)測(ce)量的準確性。
3、測量時,轉動(dong)(dong)搖(yao)柄的速度應由(you)慢逐漸(jian)到快(kuai),然后(hou)使之保持(chi)在(zai)額定(ding)轉速(一般(ban)為(wei)120轉/分(fen)),允許轉速在(zai)±20%范圍內變動(dong)(dong),但最高不得(de)超(chao)過(guo)150轉/分(fen)。搖(yao)動(dong)(dong)不得(de)忽(hu)快(kuai)忽(hu)慢,否則指針會搖(yao)擺不定(ding)。讀(du)數應在(zai)均勻搖(yao)動(dong)(dong)一分(fen)鐘(zhong)后(hou)待指針穩定(ding)下來讀(du)取。若發(fa)現指針為(wei)零,表(biao)明被測絕緣物存(cun)在(zai)短(duan)路故障(zhang),應立刻(ke)停止轉動(dong)(dong)搖(yao)柄,以(yi)防表(biao)內線圈因發(fa)熱而損壞。
4、測(ce)量(liang)完畢后(hou),要先(xian)對(dui)被(bei)測(ce)設(she)備或(huo)線(xian)(xian)(xian)路進(jin)行充(chong)分(fen)放(fang)電(dian),再進(jin)行拆(chai)線(xian)(xian)(xian)收(shou)尾(wei)工作。若(ruo)兆歐(ou)表尚在(zai)轉動(dong)或(huo)雖已停(ting)(ting)止轉動(dong)但被(bei)測(ce)設(she)備或(huo)線(xian)(xian)(xian)路還未(wei)放(fang)電(dian)時,不能用手觸及被(bei)測(ce)部(bu)分(fen)或(huo)進(jin)行拆(chai)線(xian)(xian)(xian),以防(fang)觸電(dian)。在(zai)測(ce)量(liang)電(dian)容性設(she)備或(huo)線(xian)(xian)(xian)路的(de)絕緣電(dian)阻時。應在(zai)取(qu)得(de)穩定讀數后(hou)先(xian)小(xiao)心取(qu)下測(ce)量(liang)連(lian)接線(xian)(xian)(xian),再停(ting)(ting)止轉動(dong)搖(yao)柄,以免被(bei)測(ce)設(she)備或(huo)線(xian)(xian)(xian)路向(xiang)兆歐(ou)表倒充(chong)電(dian)而損壞儀表。
二、兆歐表測量接地電阻怎樣測試
1、先(xian)檢(jian)查接線是否正(zheng)確(que),然后(hou)(hou)調(diao)檔,先(xian)用最大檔開(kai)始,調(diao)零(ling)把(ba)兩(liang)個(ge)表夾接觸在(zai)一起,然后(hou)(hou)開(kai)始搖,并(bing)且調(diao)節指(zhi)針到零(ling)。
2、然后分開表夾(jia)(jia),一(yi)個夾(jia)(jia)接地(di)樁,一(yi)個夾(jia)(jia)測量(liang)體,然后搖(yao)用最(zui)快的速度去搖(yao)就搖(yao),是要超過(guo)120轉。
3、觀察測出(chu)的結(jie)果是否(fou)在測量范圍的2/3內來測試。
三、兆歐表的作用
兆歐表俗稱搖表,是電工(gong)常(chang)用(yong)的一種測量儀表。兆歐表主要用(yong)來檢(jian)查電氣(qi)設(she)(she)(she)備(bei)(bei)、家用(yong)電器或電氣(qi)線路對地及(ji)相間的絕緣電阻(zu),以保證這些設(she)(she)(she)備(bei)(bei)、電器和線路工(gong)作在正常(chang)狀態,避免發生觸電傷亡及(ji)設(she)(she)(she)備(bei)(bei)損壞等事故。
更多的相關信息,可以到兆歐表十大品牌查看哦。
四、兆歐表又叫什么表
兆歐表(biao)的別稱有:數(shu)(shu)(shu)字(zi)(zi)兆歐表(biao)、指針兆歐表(biao)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)表(biao)、高(gao)(gao)(gao)(gao)壓絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)量(liang)儀(yi)(yi)(yi)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)特(te)性測(ce)(ce)試(shi)儀(yi)(yi)(yi)、電(dian)(dian)(dian)動(dong)搖(yao)表(biao)、電(dian)(dian)(dian)子(zi)式絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、大(da)功(gong)率高(gao)(gao)(gao)(gao)壓兆歐表(biao)、兆歐表(biao)、數(shu)(shu)(shu)字(zi)(zi)式兆歐表(biao)、數(shu)(shu)(shu)顯(xian)兆歐表(biao)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、高(gao)(gao)(gao)(gao)壓絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)量(liang)儀(yi)(yi)(yi)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)特(te)性測(ce)(ce)試(shi)儀(yi)(yi)(yi)、電(dian)(dian)(dian)動(dong)搖(yao)表(biao)、數(shu)(shu)(shu)字(zi)(zi)搖(yao)表(biao)、數(shu)(shu)(shu)顯(xian)搖(yao)表(biao)、數(shu)(shu)(shu)字(zi)(zi)兆歐計、高(gao)(gao)(gao)(gao)壓數(shu)(shu)(shu)字(zi)(zi)絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)字(zi)(zi)高(gao)(gao)(gao)(gao)壓絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)字(zi)(zi)高(gao)(gao)(gao)(gao)壓兆歐表(biao)、數(shu)(shu)(shu)字(zi)(zi)式高(gao)(gao)(gao)(gao)壓兆歐表(biao)、高(gao)(gao)(gao)(gao)壓數(shu)(shu)(shu)字(zi)(zi)式兆歐表(biao)、數(shu)(shu)(shu)字(zi)(zi)絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)表(biao)、數(shu)(shu)(shu)顯(xian)絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)表(biao)、電(dian)(dian)(dian)子(zi)式絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)字(zi)(zi)式絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)顯(xian)式絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)顯(xian)絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)測(ce)(ce)試(shi)儀(yi)(yi)(yi)、絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)儀(yi)(yi)(yi)、數(shu)(shu)(shu)字(zi)(zi)兆歐表(biao)絕(jue)(jue)(jue)緣(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)儀(yi)(yi)(yi)、數(shu)(shu)(shu)字(zi)(zi)式電(dian)(dian)(dian)動(dong)兆歐表(biao)、數(shu)(shu)(shu)字(zi)(zi)式高(gao)(gao)(gao)(gao)壓兆歐表(biao)、大(da)功(gong)率高(gao)(gao)(gao)(gao)壓兆歐表(biao)。