一、兆歐表如何使用
1、用絕(jue)緣良好的單根(gen)銅(tong)芯軟導線(xian)(xian)(xian)做(zuo)兆歐表(biao)與被(bei)測(ce)試點之(zhi)間的測(ce)量(liang)連(lian)接線(xian)(xian)(xian),不能用絞(jiao)(jiao)合(he)線(xian)(xian)(xian)。兩根(gen)測(ce)量(liang)連(lian)接線(xian)(xian)(xian)不可絞(jiao)(jiao)合(he),也不要(yao)接觸被(bei)測(ce)設(she)備或(huo)線(xian)(xian)(xian)路(lu)的表(biao)面。
2、測(ce)量前,切斷被測(ce)設備或線路的電(dian)(dian)源,并將導電(dian)(dian)部(bu)分(fen)接地(di)放電(dian)(dian),防止電(dian)(dian)容儲能放電(dian)(dian)傷人和燒(shao)壞儀表。然后擦干凈被測(ce)試(shi)點,以免影響測(ce)量的準確性。
3、測量時,轉(zhuan)(zhuan)動搖(yao)(yao)(yao)柄的速(su)度應(ying)由慢(man)(man)逐漸到快(kuai),然(ran)后(hou)使(shi)之保持(chi)在(zai)額定(ding)轉(zhuan)(zhuan)速(su)(一般為120轉(zhuan)(zhuan)/分),允(yun)許轉(zhuan)(zhuan)速(su)在(zai)±20%范圍內變動,但最高(gao)不(bu)得超(chao)過150轉(zhuan)(zhuan)/分。搖(yao)(yao)(yao)動不(bu)得忽快(kuai)忽慢(man)(man),否則(ze)指針(zhen)會搖(yao)(yao)(yao)擺不(bu)定(ding)。讀數(shu)應(ying)在(zai)均勻搖(yao)(yao)(yao)動一分鐘(zhong)后(hou)待指針(zhen)穩定(ding)下來讀取。若發現指針(zhen)為零,表(biao)明(ming)被(bei)測絕(jue)緣物(wu)存在(zai)短路故障,應(ying)立刻停止轉(zhuan)(zhuan)動搖(yao)(yao)(yao)柄,以防表(biao)內線(xian)圈因發熱而損壞。
4、測(ce)量完畢后(hou),要先對被(bei)(bei)測(ce)設備或(huo)線(xian)(xian)(xian)路(lu)進行(xing)充分(fen)放(fang)電(dian),再進行(xing)拆線(xian)(xian)(xian)收尾工作。若兆歐表尚在轉動或(huo)雖已(yi)停止(zhi)轉動但(dan)被(bei)(bei)測(ce)設備或(huo)線(xian)(xian)(xian)路(lu)還未放(fang)電(dian)時(shi),不能用手觸及被(bei)(bei)測(ce)部分(fen)或(huo)進行(xing)拆線(xian)(xian)(xian),以防觸電(dian)。在測(ce)量電(dian)容性設備或(huo)線(xian)(xian)(xian)路(lu)的絕緣電(dian)阻時(shi)。應在取得穩定讀(du)數后(hou)先小心(xin)取下測(ce)量連接線(xian)(xian)(xian),再停止(zhi)轉動搖(yao)柄,以免被(bei)(bei)測(ce)設備或(huo)線(xian)(xian)(xian)路(lu)向兆歐表倒充電(dian)而損(sun)壞儀表。
二、兆歐表測量接地電阻怎樣測試
1、先檢查接線是否正確,然(ran)后調檔,先用最大檔開(kai)始(shi),調零(ling)把兩(liang)個表夾接觸(chu)在一(yi)起,然(ran)后開(kai)始(shi)搖,并且(qie)調節指針到零(ling)。
2、然后分開表夾(jia),一(yi)(yi)個夾(jia)接地樁,一(yi)(yi)個夾(jia)測量體,然后搖用最快(kuai)的速度(du)去搖就搖,是要超(chao)過120轉。
3、觀察測出的結果是否(fou)在測量范(fan)圍的2/3內來測試。
三、兆歐表的作用
兆(zhao)歐表俗稱搖(yao)表,是電工常(chang)用的一(yi)種測(ce)量儀表。兆(zhao)歐表主要(yao)用來檢查電氣(qi)設備、家用電器(qi)或電氣(qi)線路(lu)對(dui)地(di)及(ji)相間的絕緣(yuan)電阻,以保證這(zhe)些設備、電器(qi)和(he)線路(lu)工作在正常(chang)狀態,避免發生(sheng)觸電傷亡(wang)及(ji)設備損(sun)壞等事(shi)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(zhao)歐(ou)(ou)(ou)表(biao)(biao)的別稱有:數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、指針兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、絕(jue)緣(yuan)(yuan)(yuan)表(biao)(biao)、高(gao)(gao)(gao)壓(ya)(ya)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)量(liang)儀(yi)(yi)(yi)、絕(jue)緣(yuan)(yuan)(yuan)特(te)性測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)搖(yao)(yao)表(biao)(biao)、電(dian)(dian)(dian)(dian)(dian)(dian)子式(shi)(shi)(shi)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、大(da)功率高(gao)(gao)(gao)壓(ya)(ya)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)顯(xian)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、高(gao)(gao)(gao)壓(ya)(ya)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)量(liang)儀(yi)(yi)(yi)、絕(jue)緣(yuan)(yuan)(yuan)特(te)性測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)搖(yao)(yao)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)搖(yao)(yao)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)顯(xian)搖(yao)(yao)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)兆(zhao)歐(ou)(ou)(ou)計、高(gao)(gao)(gao)壓(ya)(ya)數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)高(gao)(gao)(gao)壓(ya)(ya)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)高(gao)(gao)(gao)壓(ya)(ya)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)高(gao)(gao)(gao)壓(ya)(ya)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、高(gao)(gao)(gao)壓(ya)(ya)數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)絕(jue)緣(yuan)(yuan)(yuan)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)顯(xian)絕(jue)緣(yuan)(yuan)(yuan)表(biao)(biao)、電(dian)(dian)(dian)(dian)(dian)(dian)子式(shi)(shi)(shi)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)顯(xian)式(shi)(shi)(shi)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)顯(xian)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)測(ce)(ce)試(shi)(shi)(shi)(shi)儀(yi)(yi)(yi)、絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)儀(yi)(yi)(yi)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、數(shu)(shu)(shu)(shu)(shu)(shu)(shu)字(zi)式(shi)(shi)(shi)高(gao)(gao)(gao)壓(ya)(ya)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)、大(da)功率高(gao)(gao)(gao)壓(ya)(ya)兆(zhao)歐(ou)(ou)(ou)表(biao)(biao)。