Ib txoj hauv kev yooj yim los siv ib lub multimeter los ntsuas yog tias muaj qhov xau hauv Circuit Court yog raws li hauv qab no
Txoj kev yooj yim tshaj plaws los ntsuas seb lub 220V Circuit Court yog cov hluav taws xob xau nrog lub tshuab hluav taws xob yog thawj zaug txiav tawm lub hwj chim, teeb lub multimeter rau qhov kev tawm tsam (500 ohms), thiab txuas cov xov hlau nruab nrab thiab nyob rau hauv av xaim nrog ob tus cwj mem multimeter. Yog tias qhov ntsuas ntsuas yog 0, ces nws tuaj yeem txiav txim siab tias cov xaim yog grounded, qhia txog kev xau.
Txhawm rau ntsuas qhov tseeb seb puas yog 220V kab xau, yuav tsum siv 500V lossis 1000V megohmmeter. Nws tsis tsim nyog siv multimeter los ntsuas seb puas yog 220V kab xau. Yog tias tsis muaj megohmmeter ntawm tes, ib txwm siv bipolar to Circuit Court breaker tuaj yeem ntsia tau ib ntus thaum pib ntawm qhov xav tias yuav xau kab rau kev sim. Yog tias qhov hluav taws xob hluav taws xob txuas txuas thiab kaw tam sim ntawd, thiab nws lub pob rov pib dua (qhia tias yog lub pob pib dua tsis tawm, nws yog kev tiv thaiv overload thiab tiv thaiv luv luv Circuit Court disconnection), nws ua pov thawj tias muaj cov xau hauv kab. Txoj kev no yog qhov yooj yim thiab raug.
Qhov teeb meem ntawm kev ntsuas 220V to nrog lub multimeter tsis haum heev vim tias koj ntsuas qhov ntws tawm tam sim no, thiab ntsuas qhov tsis muaj zog AC tam sim no nrog multimeter yog qhov tsis muaj zog. Nws kuj yog ib qho nyuaj rau kev ntsuas kom raug. Yog tias koj hais kom ntsuas, koj yuav tsum siv lub tshuab hloov tam sim no. Nws yog qhov zoo dua los siv lub ntsuas ntsuas ntsuas los ntsuas, tab sis koj yuav tsum xaiv lub ntsuas ntsuas clamp nrog qhov tsim nyog thiab muaj txiaj ntsig zoo dua.
Suspecting Circuit Court to, ib tug tuaj yeem siv lub Circuit Court breaker nrog kev tiv thaiv to los txiav txim seb qhov ntau ntawm cov pa taws los ntawm kauj ruam thiab tshem tawm qhov txhaum.
Raws li kev siv lub resistor los ntsuas qhov hluav taws xob hluav taws xob, kuv tsis xav tias nws tsim nyog. Vim hais tias txij li thaum nws yog qhov xau, qhov kev tawm tsam ntawm cov hlau nyob thiab cov av tiv thaiv tsis yog qhov kawg, tab sis qhov voltage ntawm multimeter tsis txaus los qhia txog qhov xwm txheej ntawm rwb thaiv tsev ntawm lawv. Uas yog hais tias, lub rwb thaiv tsev kuj txawv kiag li ntawm 9V thiab 220V. Yog li kev ntsuas ntawm rwb thaiv tsev tiv thaiv yog ib txwm nqa tawm ntawm qhov hluav taws xob siab tshaj qhov siv hluav taws xob kom tau txais cov ntaub ntawv txhim khu kev qha. Yog li yuav tsum tau siv lub rooj sib tsoo.
Tau kawg, yog tias koj tsuas yog sim rau qhov luv luv lossis txoj hauv kev ntawm cov hlau nyob thiab tiv thaiv hauv av, koj tuaj yeem siv multimeter nrog kev hloov pauv. Tsuas yog ntsuas tsis tau cov ntaub ntawv rwb thaiv tsev ntawm lawv.
Yog hais tias lub rwb thaiv tsev ntawm Circuit Court puas lawm, nws tuaj yeem pom pom thiab tuaj yeem daws tau tom qab. Lwm qhov xwm txheej yog tias cov tawv dov tsis raug puas, tab sis tsuas yog tawg me ntsis, ua rau qee qhov av ntub dej, lossis qhov chaw puas tsuaj yog zais thiab tsis tuaj yeem pom ncaj qha los ntawm qhov muag liab qab. Nyob rau lub sijhawm no, koj tuaj yeem txiav tawm lub zog mus rau txoj kab thiab co ncaj qha nrog lub multimeter. Rau cov hluav taws xob qis, yuav tsum siv 500 volt shaker. Rau kev ntsuas hauv av, yog tias cov rwb thaiv tsev tsawg dua 0.5 megohms. Nws tuaj yeem suav hais tias cov rwb thaiv tsev tsis zoo heev thiab yuav tsum tau kuaj xyuas ib ntus. Ib yam uas yuav tsum nco ntsoov yog tias thaum ntsuas nrog lub rooj tuav, tsis muaj cov khoom siv hluav taws xob yuav tsum tau txuas nrog lub voj voog. Txwv tsis pub, qhov ntsuas qhov ntsuas yuav tsis raug.
Yog hais tias ib tug multimeter yog siv los xyuas cov hluav taws xob to. Tej zaum tsis yog heev. Vim hais tias qhov voltage ntawm lub meter feem ntau yog tsawg heev. Tsuas yog thaum qhov xau hnyav tuaj yeem kuaj pom.
Ib qho ntxiv uas dhau lub ntsiab lus yog tias nws yog qhov zoo tshaj plaws los siv cov khoom seem tam sim no rau cov khoom siv hauv tsev. Nyob rau hauv txoj kev no, ib zaug xau tshwm sim, lub zog tuaj yeem txiav tawm sai sai kom ntseeg tau tias tus kheej muaj kev nyab xeeb.
