描述
電流檢測(cè)法：檢測(cè)步驟斷開點(diǎn)火開關(guān)，拆下蓄電池負(fù)極接線，把數(shù)字萬用表調(diào)到電流表(1A檔)，再取用兩根導(dǎo)線，將兩導(dǎo)線一端分別接萬用表正、負(fù)表筆，另一端分別接負(fù)極接線柱和負(fù)極接線，觀察電流表數(shù)值。將測(cè)得的電流值與維修資料對(duì)照是否在正常范圍內(nèi)。若測(cè)得的電流值過大，則說明車輛有漏電故障。故障排除方法將熔斷絲逐個(gè)拔下，觀察指針變化。當(dāng)拔下某個(gè)熔斷絲時(shí)指針不再轉(zhuǎn)動(dòng)，則故障點(diǎn)是通過此熔斷絲的電路或用電器。同電流檢測(cè)法一樣，通過查閱電路圖或查看線路走向，順線路查找出損壞部位進(jìn)行修理。
經(jīng)驗(yàn)檢測(cè)法：檢測(cè)步驟斷開點(diǎn)火開關(guān)，拆下蓄電池負(fù)極接線，然后將接線與蓄電池負(fù)極柱碰觸，觀察火花強(qiáng)度?；鸹ㄔ綇?qiáng)，漏電現(xiàn)象越嚴(yán)重。故障排除方法若火花較弱，則說明有小電流存在，應(yīng)重點(diǎn)檢查室內(nèi)小燈、行李廂燈等是否存在虛接常亮現(xiàn)象;若火花較強(qiáng)，則說明有大電流存在，應(yīng)著重查看是否有用電器在一直工作或線路是否有破損搭鐵現(xiàn)象。
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