Siv ib lub multimeter los ntsuas seb 220v kab yog to
Siv ib lub tshuab ntsuas ntsuas los ntsuas seb 220V kab puas. Txoj kev yooj yim tshaj plaws yog txiav tawm lub hwj chim ua ntej, muab lub multimeter mus rau qhov hluav taws xob thaiv (500 ohms), txuas cov hlau nruab nrab thiab cov xaim nyob rau hauv av xaim nrog ob tus cwj mem ntawm multimeter, yog tias qhov ntsuas tau yog 0, yog li ntawd. koj tuaj yeem txiav txim siab seb cov xaim twg yog grounded, thiab yuav muaj qhov xau.
Txhawm rau ntsuas seb 220V kab xau los yog tsis, nws yuav tsum raug siv 500V lossis 1000V shake meter los ntsuas seb nws puas yog. Nws tsis tsim nyog siv multimeter los ntsuas seb puas yog 220V kab xau. Kuaj nrog ob tug ncej to Circuit Court breaker nyob rau hauv ib txwm siv. Yog hais tias lub qhov hluav taws xob hluav taws xob sib txuas thiab kaw, lub qhov hluav taws xob hluav taws xob hluav taws xob qhib tam sim ntawd, thiab nws lub pob pib rov pib dua (Ceeb toom: yog tias lub pob rov pib dua tsis tawm, nws yog kev tiv thaiv overload thiab luv Circuit Court, kev tiv thaiv kev mus ncig) ua pov thawj tias muaj cov pa tawm hauv kab. Txoj kev no yog qhov yooj yim thiab raug.
Qhov teeb meem ntawm kev ntsuas 220V to nrog lub multimeter tsis haum, vim tias qhov koj xav ntsuas yog qhov xau tam sim no. Lub multimeter tsis muaj zog hauv kev ntsuas tsis muaj zog AC tam sim no, thiab nws muaj teeb meem los ntsuas qhov tsis raug. Yog tias koj hais kom ntsuas, koj yuav tsum siv lub tshuab hloov tam sim no. Siv lub ntsuas ntsuas ntsuas los ntsuas, tab sis xaiv lub ntsuas ntsuas ntsuas nrog qhov tsim nyog thiab muaj txiaj ntsig zoo dua.
Yog tias koj xav tias qhov hluav taws xob xau, koj tuaj yeem siv lub Circuit Court breaker nrog kev tiv thaiv los ntawm kev txiav txim, txiav txim qhov ntau ntawm cov xau ntu ntawm ntu, thiab daws teeb meem.
Raws li kev siv hluav taws xob los thaiv qhov xau ntawm txoj kab ntsuas, kuv tsis xav tias nws tsim nyog. Vim tias nws yog qhov xau, qhov kev tiv thaiv ntawm cov hlau nyob thiab kev tiv thaiv hauv av tsis yog qhov kawg, tab sis qhov voltage ntawm multimeter tsis txaus los piav qhia cov rwb thaiv tsev ntawm lawv, uas yog hais tias, qhov rwb thaiv tsev ntawm 9V yog txawv kiag li. los ntawm 220V. Yog li ntawd, lub rwb thaiv tsev tiv thaiv yog ntsuas ntawm ib qho mob siab tshaj qhov hluav taws xob hluav taws xob kom tau txais cov ntaub ntawv txhim khu kev qha. Yog li koj yuav tsum siv lub shaker.
Tau kawg, yog tias koj tsuas yog sim seb puas muaj qhov luv luv lossis ib txoj hauv kev ntawm cov hlau nyob thiab cov av tiv thaiv, nws tseem tuaj yeem siv multimeter los thaiv nws. Tsuas yog ntsuas tsis tau cov ntaub ntawv rwb thaiv tsev ntawm lawv.
Thawj txiav tawm lub hwj chim! Tom qab ntawd txuas cov xim dub ntawm lub multimeter mus rau hauv av xaim (daj-ntsuab ob-xim hlau). Yog tias cov kab tsis muaj cov xaim hauv av, nws tuaj yeem txuas nrog cov yeeb nkab hlau lossis av av. Cov cwj mem liab ntsuas qhov xoom kab thiab kab nyob raws. Cov multimeter digital siv 2M cov ntaub ntawv, tso saib 1 yog qhov qub, thiab tso saib lwm tus lej yog to. Rau lub pointer multimeter MF47, siv 10kΩ iav kom ua tib zoo saib lub koob txav me ntsis thiab yuav muaj cov xau. Koj tuaj yeem siv tus cwj mem xeem thiab kab los kov thiab qhib, thiab saib cov koob ntau zaus. Cov saum toj no yog rau industrial zog noj. Yog tias nws nyob hauv lub tsev nyob, nws yuav nyuaj me ntsis. Peb lub teb chaws siv peb-theem fais fab mov thiab ob-theem tiv thaiv, uas muaj kev nyab xeeb heev. Ntawd yog, cov khoom tiv thaiv xau tau nruab rau hauv lub thawv xa khoom loj yuav tawm mus thaum lub xau tam sim no yog 30 mA. Sab Hauv Tsev Lub thawv hluav taws xob tau nruab nrog cov khoom tiv thaiv hluav taws xob thib ob, thiab nws yuav tawm mus thaum qhov hluav taws xob xau yog 15 mA. Kab xau! Lub qhov (socket) tuaj yeem raug tshem tawm. Yog tias koj muaj multimeter, siv txoj kev nruab nrab. Tshem tawm cov xaim hauv nruab nrab ntawm txhua kab. Nws yuav tawm mus thaum lub zog nkag. lub qhov (socket). Thiab yog li ntawd kom txog rau thaum pom qhov xau, tsuas yog hloov kab. Yog tias tsis muaj multimeter, siv txoj kev rov qab, uas yog, tshem tawm ntawm lub qhov (socket) thib ob thaum kawg. Yog tias nws tsis tawm mus, nws txhais tau hais tias muaj qhov xau ntawm lub qhov (socket) kawg thiab lub qhov (socket) thib ob mus rau qhov kawg. Yog hais tias nws tseem mus txawv tebchaws, disconnect cov hlau los ntawm lub qhov (socket) thib peb-rau-kawg, thiab lwm yam. . Nyob rau hauv ib rooj plaub tshwj xeeb, lub grounding kuj ntawm cov xov hlau ntawm cov qhov nyob ib sab yuav disassembled, tab sis qhov to tsis pom ntawm qhov kawg ntawm lub disassembly, thiab nws tseem mus txawv tebchaws thaum ntsia, tshwj xeeb tshaj yog nyob rau hauv lub qub vaj tse, qhia tau hais tias cov kab yog aging. . , tsis tuaj yeem ntsuas sib cais, thiab cov xau yuav tawm mus thaum cov nyiaj tau ntxiv. Tib txoj kev yog hloov tag nrho cov kab. Nco ntsoov tias qhov nruab nrab hauv av kuj yog tripped!
Kev xau yuav tsum muab faib ua ob qhov xwm txheej. Muaj qhov xau ntawm cov xaim nyob thiab cov xaim nruab nrab ntawm tag nrho cov khoom siv hluav taws xob (nruab nrab ntawm cov xov hlau nyob thiab nruab nrab yam tsis muaj cov khoom siv hluav taws xob). tso tawm. Hauv qhov no, tag nrho cov khoom siv hluav taws xob hluav taws xob yuav raug txiav tag nrho, thiab tag nrho cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob yuav raug tshem tawm. Siv 10K multimeter los ntsuas qhov ntsuas tus nqi ntawm cov hlau nyob thiab cov xaim nruab nrab. Nyob rau hauv ib txwm rwb thaiv tsev tej yam kev mob, tus nqi kuj yuav tsum infinite. Yog tias muaj tus nqi tsis kam ntawm ob peb megaohms mus rau kaum ntawm megaohms lossis ntau dua, qhia tias muaj qhov xau me ntsis. Yog hais tias lub multimeter qhia tau hais tias tus nqi tsis kam ntawm kaum ntawm kiloohms mus rau pua pua kiloohms, nws txhais tau tias me ntsis to. Yog hais tias lub multimeter qhia tau hais tias tsuas yog ob peb txhiab ohms los yog tus nqi me me kuj qhia tau hais tias cov kab muaj zog to. Koj tuaj yeem tshawb nrhiav ib qho los ntawm ib qho ntawm qhov chaw ntawm kab. Koj yuav tsum tsis txhob nco txhua ceg ceg. Koj tuaj yeem pom qhov to hauv qhov kev laus thiab ntub dej ntawm cov kab hluav taws xob.
Qhov xwm txheej thib ob yog qhov xau ntawm tag nrho lub zog hluav taws xob mus rau hauv av lossis cov khoom siv hluav taws xob xau mus rau hauv av. Nyob rau hauv rooj plaub no, nws yog ib qho tsim nyog yuav tsum tau kuaj xyuas txhua yam khoom siv hluav taws xob ib qho los ntawm ib qho, tshwj xeeb tshaj yog cov hlau casings xws li cov tub yees lossis lwm lub tshuab nrog cov khoom siv hauv av. Yog tias cov khoom siv hluav taws xob tsim nyog tau nruab rau hauv lub zog hluav taws xob tseem ceeb, yog tias qhov kev ua haujlwm ntawm cov dej xau tiv thaiv tsis ua haujlwm, txhua yam khoom siv hluav taws xob uas xau hluav taws xob mus rau hauv av tuaj yeem ua rau lub qhov hluav taws xob tawm mus rau kev tiv thaiv. Lub hauv paus ntsiab lus no tuaj yeem siv los ua ib txoj hauv kev tshuaj xyuas. , Yog tias cov khoom tiv thaiv tseem ceeb tau tawg los yog tsis muaj kev ntseeg siab, hloov nws nrog cov khoom tiv thaiv hluav taws xob tshiab nyob rau hauv lub ntsiab Circuit Court, uas tuaj yeem cuam tshuam cov xaim nyob thiab cov xaim nruab nrab nyob rau tib lub sijhawm thaum cov xau tshwm sim. Tig rau qhov kev tiv thaiv ib txwm mus los ntawm cov khoom siv hluav taws xob tseem ceeb, thiab tshem tawm tag nrho cov khoom siv hluav taws xob ib los ntawm ib qho ntawm cov khoom siv hluav taws xob. Thaum qee yam khoom siv hluav taws xob raug txiav tawm, lub qhov hluav taws xob tiv thaiv yuav tsis tawm mus thiab txiav tawm lub hwj chim. Nyob rau hauv tib txoj kev, nws tuaj yeem raug kuaj xyuas tias yog tias qee txoj kab raug txiav tawm, tus tiv thaiv xau yuav tsis tawm mus thiab lub hwj chim tawm lawm, thiab qhov cuam tshuam ntawm txoj kab yuav muaj cov xau. Nyob rau hauv cov ntaub ntawv ntawm lub hwj chim tsis ua hauj lwm, ib tug multimeter yuav siv tau los ntsuas tus nqi kuj ntawm cov kab los yog cov khoom siv rau hauv av hlau. Hauv qab ob peb puas txhiab ohms, nws txhais tau hais tias cov kab los yog cov khoom siv muaj zog to. Yog tias nws siab tshaj 3__5 megohms, nws yuav tsis cuam tshuam rau kev ua haujlwm hauv Circuit Court. Kev tiv thaiv hluav taws xob tua hluav taws xob, lub Circuit Court tsis tuaj yeem muab hluav taws xob.
