一、兆歐表如何使用

1、用(yong)絕緣良好的單根銅芯軟導(dao)線(xian)做兆歐(ou)表與被(bei)測(ce)試(shi)點(dian)之間的測(ce)量連(lian)接(jie)線(xian)，不(bu)能(neng)用(yong)絞合(he)線(xian)。兩根測(ce)量連(lian)接(jie)線(xian)不(bu)可(ke)絞合(he)，也不(bu)要接(jie)觸(chu)被(bei)測(ce)設備或(huo)線(xian)路的表面。

2、測量前(qian)，切斷被測設備或線路(lu)的電(dian)(dian)(dian)源，并(bing)將導(dao)電(dian)(dian)(dian)部分(fen)接地放電(dian)(dian)(dian)，防止電(dian)(dian)(dian)容儲能放電(dian)(dian)(dian)傷人和燒壞儀表。然后擦干凈被測試點，以(yi)免影響測量的準(zhun)確性(xing)。

3、測量時，轉(zhuan)動(dong)(dong)搖柄(bing)的速(su)度應(ying)由慢逐漸到快，然(ran)后(hou)使(shi)之(zhi)保持(chi)在額定(ding)轉(zhuan)速(su)(一般(ban)為120轉(zhuan)／分(fen))，允許轉(zhuan)速(su)在±20％范圍內變動(dong)(dong)，但最高不得(de)超過150轉(zhuan)／分(fen)。搖動(dong)(dong)不得(de)忽(hu)快忽(hu)慢，否則指(zhi)針(zhen)會搖擺不定(ding)。讀數應(ying)在均勻搖動(dong)(dong)一分(fen)鐘(zhong)后(hou)待指(zhi)針(zhen)穩定(ding)下來讀取。若發(fa)現指(zhi)針(zhen)為零，表明被測絕緣(yuan)物存在短路故障，應(ying)立刻停止轉(zhuan)動(dong)(dong)搖柄(bing)，以防(fang)表內線圈因發(fa)熱而損(sun)壞(huai)。

4、測(ce)(ce)量(liang)(liang)完畢后，要先對被測(ce)(ce)設(she)備或(huo)(huo)(huo)(huo)線(xian)(xian)(xian)路(lu)進行(xing)充分放電(dian)，再(zai)(zai)進行(xing)拆(chai)線(xian)(xian)(xian)收尾(wei)工作。若兆(zhao)歐表(biao)(biao)尚在轉(zhuan)動或(huo)(huo)(huo)(huo)雖已(yi)停(ting)(ting)止轉(zhuan)動但被測(ce)(ce)設(she)備或(huo)(huo)(huo)(huo)線(xian)(xian)(xian)路(lu)還未放電(dian)時(shi)，不能(neng)用手觸及被測(ce)(ce)部分或(huo)(huo)(huo)(huo)進行(xing)拆(chai)線(xian)(xian)(xian)，以防觸電(dian)。在測(ce)(ce)量(liang)(liang)電(dian)容性設(she)備或(huo)(huo)(huo)(huo)線(xian)(xian)(xian)路(lu)的絕緣(yuan)電(dian)阻時(shi)。應在取(qu)(qu)得穩定讀(du)數后先小(xiao)心取(qu)(qu)下測(ce)(ce)量(liang)(liang)連(lian)接線(xian)(xian)(xian)，再(zai)(zai)停(ting)(ting)止轉(zhuan)動搖柄，以免被測(ce)(ce)設(she)備或(huo)(huo)(huo)(huo)線(xian)(xian)(xian)路(lu)向(xiang)兆(zhao)歐表(biao)(biao)倒(dao)充電(dian)而損(sun)壞儀表(biao)(biao)。

二、兆歐表測量接地電阻怎樣測試

1、先(xian)(xian)檢查接線是否正(zheng)確，然(ran)后調檔(dang)，先(xian)(xian)用最大檔(dang)開始(shi)，調零(ling)把兩個表夾(jia)接觸在(zai)一起(qi)，然(ran)后開始(shi)搖(yao)，并(bing)且調節指針到零(ling)。

2、然后分(fen)開表夾(jia)，一個(ge)夾(jia)接地樁，一個(ge)夾(jia)測量體，然后搖(yao)用最快的速度(du)去搖(yao)就搖(yao)，是要超過120轉。

3、觀(guan)察測(ce)出的結果是否在測(ce)量(liang)范圍的2/3內來(lai)測(ce)試。

三、兆歐表的作用

兆歐表(biao)(biao)俗稱搖(yao)表(biao)(biao)，是(shi)電(dian)工(gong)常用的(de)(de)一(yi)種測量儀表(biao)(biao)。兆歐表(biao)(biao)主要(yao)用來檢(jian)查電(dian)氣設備、家用電(dian)器或電(dian)氣線路對地及(ji)(ji)相間的(de)(de)絕緣電(dian)阻(zu)，以保證這些設備、電(dian)器和(he)線路工(gong)作(zuo)在(zai)正常狀(zhuang)態(tai)，避免發生觸(chu)電(dian)傷亡及(ji)(ji)設備損(sun)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

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