鉗形表是什么?顧名思義它的形狀像鉗子,功能跟萬用表類似,是電(dian)(dian)工常(chang)用(yong)的工具(ju)之一(yi)。鉗(qian)形表是鉗(qian)形電(dian)(dian)流(liu)(liu)表的簡稱(cheng),是一(yi)種不(bu)需(xu)要(yao)斷開電(dian)(dian)路(lu)就(jiu)能(neng)直(zhi)接(jie)測(ce)量電(dian)(dian)路(lu)的交(jiao)(jiao)流(liu)(liu)電(dian)(dian)流(liu)(liu)的便攜(xie)式測(ce)量儀表,因其外形上有一(yi)個鉗(qian)形的活動開口所(suo)以稱(cheng)為鉗(qian)形電(dian)(dian)流(liu)(liu)表。一(yi)般的鉗(qian)形表均(jun)不(bu)具(ju)備(bei)測(ce)量1kV或以上的交(jiao)(jiao)直(zhi)流(liu)(liu)電(dian)(dian)壓(ya),建議不(bu)要(yao)測(ce)量高于此(ci)電(dian)(dian)壓(ya)的參數,以免造成人身(shen)觸電(dian)(dian)事故。
對于鉗形(xing)表(biao)(biao)的使用(yong)方法(fa)首先(xian)要求(qiu)是(shi)(shi)(shi)要求(qiu)兩(liang)根電(dian)源線(xian)(xian)能分開,并股線(xian)(xian)無法(fa)測(ce)(ce)試;同(tong)時我們可(ke)以看到鉗型萬用(yong)表(biao)(biao)上(shang)一(yi)般都有(you)三個插孔(kong), 1. VΩ是(shi)(shi)(shi)測(ce)(ce)量(liang)電(dian)壓(ya)電(dian)阻的插孔(kong),一(yi)般插入(ru)紅(hong)表(biao)(biao)筆;2. COM是(shi)(shi)(shi)各(ge)個檔(dang)位公共測(ce)(ce)試孔(kong),一(yi)般插入(ru)黑表(biao)(biao)筆;3. 部(bu)分鉗形(xing)表(biao)(biao)還帶有(you)一(yi)個閃(shan)電(dian)符號的孔(kong),那(nei)是(shi)(shi)(shi)測(ce)(ce)探火(huo)線(xian)(xian)的孔(kong),即把(ba)紅(hong)表(biao)(biao)筆插入(ru)該孔(kong),黑表(biao)(biao)筆不(bu)予萬用(yong)表(biao)(biao)相接,撥動轉盤道閃(shan)電(dian)符號檔(dang)位,用(yong)紅(hong)表(biao)(biao)筆就可(ke)以測(ce)(ce)量(liang)帶電(dian)體了。
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