一、兆歐表如何使用
1、用絕緣良好的單根(gen)銅芯(xin)軟導線(xian)(xian)做兆歐(ou)表與(yu)被(bei)測試點之(zhi)間的測量連接線(xian)(xian),不(bu)能用絞(jiao)(jiao)合線(xian)(xian)。兩根(gen)測量連接線(xian)(xian)不(bu)可絞(jiao)(jiao)合,也不(bu)要接觸被(bei)測設備(bei)或線(xian)(xian)路的表面。
2、測量(liang)前,切斷(duan)被(bei)測設備或線路的電源(yuan),并將導電部分接地放(fang)電,防止電容儲能放(fang)電傷人和(he)燒壞儀(yi)表。然后擦干凈被(bei)測試點(dian),以免(mian)影響測量(liang)的準確性。
3、測量時(shi),轉(zhuan)動搖(yao)柄的(de)速(su)度(du)應(ying)(ying)由慢(man)逐漸到快,然(ran)后使(shi)之保持在額(e)定(ding)轉(zhuan)速(su)(一般為120轉(zhuan)/分),允許轉(zhuan)速(su)在±20%范圍內變(bian)動,但最(zui)高不(bu)得(de)超過150轉(zhuan)/分。搖(yao)動不(bu)得(de)忽快忽慢(man),否則(ze)指針會(hui)搖(yao)擺(bai)不(bu)定(ding)。讀數應(ying)(ying)在均(jun)勻(yun)搖(yao)動一分鐘后待(dai)指針穩定(ding)下來讀取。若發現(xian)指針為零(ling),表明被測絕緣物(wu)存在短路故障,應(ying)(ying)立刻停(ting)止轉(zhuan)動搖(yao)柄,以防(fang)表內線圈(quan)因發熱而(er)損壞。
4、測量完(wan)畢后,要先對被(bei)(bei)(bei)測設備或(huo)線(xian)路進(jin)行(xing)(xing)充分(fen)放(fang)電(dian),再(zai)進(jin)行(xing)(xing)拆(chai)線(xian)收(shou)尾工作(zuo)。若(ruo)兆(zhao)歐表(biao)(biao)尚在轉(zhuan)動(dong)或(huo)雖(sui)已停(ting)止轉(zhuan)動(dong)但被(bei)(bei)(bei)測設備或(huo)線(xian)路還未放(fang)電(dian)時(shi),不能用手觸及被(bei)(bei)(bei)測部分(fen)或(huo)進(jin)行(xing)(xing)拆(chai)線(xian),以防觸電(dian)。在測量電(dian)容性設備或(huo)線(xian)路的絕(jue)緣電(dian)阻時(shi)。應在取得穩定讀數后先小心(xin)取下測量連(lian)接線(xian),再(zai)停(ting)止轉(zhuan)動(dong)搖柄,以免被(bei)(bei)(bei)測設備或(huo)線(xian)路向(xiang)兆(zhao)歐表(biao)(biao)倒充電(dian)而損壞(huai)儀表(biao)(biao)。
二、兆歐表測量接地電阻怎樣測試
1、先檢查接(jie)(jie)線是否正確,然(ran)后調(diao)檔,先用最大(da)檔開始,調(diao)零把兩個表夾接(jie)(jie)觸在一起,然(ran)后開始搖,并且調(diao)節指針到零。
2、然后(hou)分開表夾(jia)(jia),一(yi)個夾(jia)(jia)接地樁,一(yi)個夾(jia)(jia)測量體,然后(hou)搖用最快(kuai)的速度去搖就搖,是(shi)要超過(guo)120轉(zhuan)。
3、觀(guan)察測(ce)出的結果是否在(zai)測(ce)量范圍的2/3內來測(ce)試。
三、兆歐表的作用
兆歐(ou)表(biao)俗稱(cheng)搖表(biao),是電(dian)(dian)(dian)工(gong)常用(yong)的一種(zhong)測量儀表(biao)。兆歐(ou)表(biao)主(zhu)要用(yong)來檢查(cha)電(dian)(dian)(dian)氣(qi)設(she)備、家用(yong)電(dian)(dian)(dian)器(qi)或電(dian)(dian)(dian)氣(qi)線路(lu)對地及相(xiang)間(jian)的絕(jue)緣電(dian)(dian)(dian)阻,以(yi)保證這些(xie)設(she)備、電(dian)(dian)(dian)器(qi)和線路(lu)工(gong)作(zuo)在(zai)正常狀態,避免發生觸電(dian)(dian)(dian)傷亡及設(she)備損壞等事故(gu)。
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(zhao)(zhao)歐(ou)(ou)(ou)(ou)表的別(bie)稱有:數(shu)(shu)字(zi)(zi)(zi)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、指針(zhen)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、絕(jue)(jue)緣(yuan)(yuan)(yuan)表、高壓絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)量儀(yi)(yi)、絕(jue)(jue)緣(yuan)(yuan)(yuan)特性(xing)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、電(dian)(dian)(dian)動搖(yao)表、電(dian)(dian)(dian)子(zi)式(shi)(shi)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、大功率高壓兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、數(shu)(shu)顯(xian)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、高壓絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)量儀(yi)(yi)、絕(jue)(jue)緣(yuan)(yuan)(yuan)特性(xing)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、電(dian)(dian)(dian)動搖(yao)表、數(shu)(shu)字(zi)(zi)(zi)搖(yao)表、數(shu)(shu)顯(xian)搖(yao)表、數(shu)(shu)字(zi)(zi)(zi)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)計、高壓數(shu)(shu)字(zi)(zi)(zi)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、數(shu)(shu)字(zi)(zi)(zi)高壓絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、數(shu)(shu)字(zi)(zi)(zi)高壓兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)高壓兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、高壓數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、數(shu)(shu)字(zi)(zi)(zi)絕(jue)(jue)緣(yuan)(yuan)(yuan)表、數(shu)(shu)顯(xian)絕(jue)(jue)緣(yuan)(yuan)(yuan)表、電(dian)(dian)(dian)子(zi)式(shi)(shi)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、數(shu)(shu)顯(xian)式(shi)(shi)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、數(shu)(shu)顯(xian)絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)測(ce)(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)、絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)儀(yi)(yi)、數(shu)(shu)字(zi)(zi)(zi)兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表絕(jue)(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻(zu)(zu)(zu)儀(yi)(yi)、數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)電(dian)(dian)(dian)動兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、數(shu)(shu)字(zi)(zi)(zi)式(shi)(shi)高壓兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表、大功率高壓兆(zhao)(zhao)歐(ou)(ou)(ou)(ou)表。