Dab tsi ua pulcuitateter zaub thaum lub voj voos yog qhov av lossis luv - circuited?
Ntsuas cov kab ke ntawm cov hluav taws xob siv lub 10k iav ntawm lub multimeter thiab disconnect lub nra. Rau ib tug peb -}} hlau circuit Court, tus nqi hlau luam ntawm plaub lub xov hlau pom los ntawm kev sib txuam ntawm kev sib xyaw ua ke. Rau ib qho -} txheej txheem Circuit Court, nws yuav tsum muaj tso tawm cov lus tsis txaus ntshai nyob rau hauv ib txwm muaj xwm txheej. Thaum muaj tus nqi resferance, nws tuaj yeem txiav txim siab tias muaj luv luv ntawm Circuit hauv Circuit Court. Txog kev txiav txim siab ntawm kev txiav txim siab, siv ib qho kev sim ntawm kev ntsuas kom kov ib qho kawg ntawm xaim, thiab siv lwm yam kev ntsuas ua rau ntsuas qhov av. Yog tias qhov kev tawm tsam yog qhov tsis kawg, nws yog qhov qub; Txwv tsis pub, muaj qhov tshwm sim hauv av. Ntsuas tag nrho cov xov hlau ib los ntawm ib qho kev siv cov qauv no kom pom cov teeb meem. Ib qho ntxiv, yog tias nws yog tus kab xev hlau cable, muab lwm qhov kawg ntawm kev ntsuas ua rau ntawm cov kab xev hlau rau kev ntsuas. Txhawm rau kom paub tseeb qhov tseeb ntawm kev ntsuas, nws yog qhov zoo tshaj plaws los xyuas seb puas muaj lub Circuit Court nyob rau hauv Circuitalts thawj zaug, thiab tom qab ntawd siv ntau multimeter kom paub luv luv lub voj voos thiab av ua yuam kev. Qhov tseeb, kom daws tau ob hom kev ua txhaum, cov cuab yeej xws li ib tug melohmeter kuj tseem siv tau los ua kev saib xyuas sai dua thiab muaj tseeb dua.
Nqa cov khoom siv hauv tsev ua piv txwv: cov khoom siv hluav taws xob hauv tsev feem ntau muaj ib tus hlau nyob, xaim nruab nrab, thiab ib qho av hlau. Yog tias muaj cov kauj vab luv ntawm cov xaim hlau nyob thiab cov hlau nruab nrab, cov huab cua hloov yuav mus ncig. Lub sijhawm no, tua tawm cov khoom siv hluav taws xob, tshem tawm ob qho xov hluav taws xob xaus ntawm cov hlau hloov (cov hlau nyob nruab nrab ntawm ob lub xov tooj) Cov tsis kam yuav tsum yog qhov tseem ceeb. Yog tias qhov tsis kam yog xoom los yog tsuas yog ob peb ohms, nws qhia tias muaj cov xaim luv ntawm cov xaim hlau nyob ntawm cov xaim hluav taws xob thiab cov hlau nruab nrab.
Tig rau saum huab cua hloov, tsis txhob nruab ob xaus ntawm cov zis tawm ntawm cov khoom siv hluav taws xob, thiab siv 250V AC ntawm cov huab cua hloov thiab ib qho kev sim ua rau tus neeg siv xaim xaim. Yog tias muaj qhov hluav taws xob ntawm ib ncig 220 volts, nws ua pov thawj tias lub Circuit Court yog qhov av.
Nyob rau hauv Suav teb qis - hluav taws xob zog, nws tau sau tias lub nruab nrab ntawm cov hlau, thiab cov xaim nruab nrab tsis tuaj yeem siv ua av xaim. Cov hlau muaj siab tiv thaiv hauv av yuav tsum tau muab cais cais. Tom qab nkag mus rau tus neeg siv hluav taws xob lub thawv hluav taws xob, cov hlau nyob thiab cov hlau nruab nrab yuav tsum yog hauv av los ua haujlwm kom zoo. Thaum cov tsis kam ntawm cov hlau nyob lossis cov hlau nruab nrab thiab cov av hauv av tsawg dua 0.5 Moohms, kev tiv thaiv xau, mus rau kev txiav lub zog.
Tom qab taug kev tshwm sim, muaj ntau txoj kev siv tau los tshawb pom seb puas muaj Circuit Court lossis hauv Circuit Court thiab thauj khoom qab ntawm Circuit Court breaker. Cov qauv yog raws li hauv qab no:
Disconnect lub zog tseem ceeb hloov thiab txuas cov hlau sib txuas ntawm cov hlau nruab nrab thiab lub zog. (Rau qee qhov kev sib txuas sib ceg, lub xov nruab nrab tsis raug kaw hauv qhov chaw qhib, thiab cov hlau nruab nrab yuav tsum tau muab tshem tawm). Tom qab ntawd, siv cov iav ntau tshaj plaws ntawm motionsalis (qhov ntau tshaj li ntawm 1 Moohm) los ntsuas cov xaim hluav taws xob tsis kam ntawm cov hlau nyob rau hauv av xaim feem. Yog tias qhov tsis kam yog qis dua 0.5 Moohms, nws yog txiav txim siab tsis tsim nyog.
Yog tias qhov tsis kam ntawm cov xaim hlau nyob thiab lub nruab nrab hlau mus rau hauv av xaim yog tsim nyog, nws qhia tau tias tsis muaj qhov ua txhaum. Tom qab ntawd, siv cov puv kev ntsuas cov kev tiv thaiv ntawm cov hlau nyob nruab nrab (txhua yam ntsaws yuav tsum tau rub tawm thiab cov khoom siv hluav taws xob yuav tsum tau muab tua). Ib yam li ntawd, cov kev tawm tsam yuav tsum muaj ntau dua 0.5 Meohms. Yog tias tsis muaj teeb meem nrog Circuit Court, nws yuav muaj teeb meem ntau dua, thiab teeb meem nyob hauv cov khoom siv hluav taws xob. Xyuas lawv ib los ntawm ib!
