判斷是否短路，用萬用表電阻檔，×100或者×10檔dang
，測ce量liang直zhi流liu電dian源yuan供gong電dian段duan和he公gong共gong地di點dian之zhi間jian的de正zheng反fan向xiang電dian阻zu的de阻zu值zhi
，一yi般ban正zheng反fan向xiang電dian阻zu的de阻zu值zhi是shi不bu一yi樣yang的de，並bing且qie有you一yi定ding阻zu值zhi
，如ru果guo阻zu值zhi過guo小xiao並bing且qie正zheng反fan向xiang大da小xiao電dian阻zu都dou是shi一yi樣yang的de，證zheng明ming電dian路lu有you短duan路lu故gu障zhang。當dang然ran這zhe裏li還hai有you一yi個ge問wen題ti要yao注zhu意yi
，如ru果guo有you變bian壓ya器qi在zai電dian路lu裏li，可ke能neng就jiu無wu法fa用yong測ce量liang正zheng反fan向xiang電dian阻zu的de方fang法fa判pan斷duan短duan路lu故gu障zhang。

 

zhazhaoguzhangyibandoushicongjiandaofandeshunxurushou
，xianpaichuzuijiandanzuirongyipaichudebufen


，zhujianpaichufa
，ranhouzaipaichujiaonandebufen，zuihoupaichuzuinanpaichudebufen，zuirongyisunhuaideyuanqijian，yibanyoulvbodianrong，gonglvsanjiguan，wenyaerjiguan，hejichengdianlu。guzhanggaodebufenyibanzaidianyuanbufen
，suoyizhaguzhangyibandoushixiancongdianyuanbufenzhaqi
，baozhengdianyuanwuguzhang。qicishihaodiangonglvjiaodadebufen。

 

 

當(dang)然(ran)查(zha)找(zhao)故(gu)障(zhang)，每(mei)一(yi)個(ge)人(ren)都(dou)有(you)自(zi)己(ji)的(de)經(jing)驗(yan)

，也(ye)許(xu)方(fang)法(fa)略(lve)有(you)不(bu)同(tong)，但(dan)是(shi)基(ji)本(ben)大(da)同(tong)小(xiao)異(yi)。以(yi)上(shang)隻(zhi)是(shi)我(wo)的(de)一(yi)點(dian)經(jing)驗(yan)
，希(xi)望(wang)新(xin)手(shou)能(neng)從(cong)中(zhong)學(xue)習(xi)到(dao)一(yi)點(dian)經(jing)驗(yan)。