等(deng)電(dian)位(wei),即(ji)等(deng)電(dian)勢(shi)。在(zai)一(yi)個(ge)帶(dai)電(dian)線(xian)路(lu)中(zhong)如(ru)果(guo)選(xuan)定(ding)兩(liang)個(ge)測(ce)試(shi)點(dian),測(ce)得(de)它(ta)們(men)之(zhi)間(jian)沒(mei)有(you)電(dian)壓(ya)即(ji)沒(mei)有(you)電(dian)勢(shi)差(cha),則(ze)我(wo)們(men)就(jiu)認(ren)定(ding)這(zhe)兩(liang)個(ge)測(ce)試(shi)點(dian)是(shi)等(deng)電(dian)勢(shi)的(de),它(ta)們(men)之(zhi)間(jian)也(ye)是(shi)沒(mei)有(you)阻(zu)值(zhi)的(de)。電(dian)力(li)係(xi)統(tong)中(zhong)用(yong)向(xiang)下(xia)的(de)空(kong)心(xin)三(san)角(jiao)形(xing)符(fu)號(hao)表(biao)示(shi)等(deng)電(dian)位(wei),實(shi)際(ji)上(shang)是(shi)...