Txoj kev thiab ceev faj ntawm clamp meter tam sim no ntsuas
Clamp meter (clamp meter) yog ib qho cuab yeej uas sib xyaw ua ke tam sim no transformer thiab ammeter, thiab yog ib ceg tseem ceeb ntawm digital multimeter; Nws yog ib qho khoom siv portable uas tuaj yeem ntsuas ncaj qha rau AC tam sim no ntawm ib lub voj voog yam tsis muaj kev cuam tshuam lub voj voog. Lub clamp 'meter' yog qhov tseem ceeb ntawm kev hloov pauv tam sim no, lub tshuab hluav taws xob clamp thiab lub tshuab magnetic rectifying nrog cov tshuaj tiv thaiv quab yuam.
Cov lus qhia:
(1) Kev kho tshuab xoom yuav tsum tau ua ntej ntsuas
(2) Xaiv qhov tsim nyog, xaiv qhov loj ua ntej, thiab tom qab ntawd xaiv qhov me me lossis saib daim ntawv teev npe rau kev kwv yees.
(3) Thaum ntsuas qhov tsawg kawg nkaus yog siv los ntsuas thiab kev nyeem ntawv tsis pom tseeb, qhov ntsuas ntsuas tuaj yeem raug mob ob peb zaug, thiab tus lej hloov yuav tsum yog raws li tus lej ntawm lub puab tsaig, tom qab ntawd nyeem ntawv=qhia tus nqi × ntau yam / tag nrho sib txawv × hloov tus lej
(4) Tom qab kev ntsuas tiav, qhov hloov pauv yuav tsum tau muab tso rau ntawm qhov siab tshaj plaws.
(5) Thaum ntsuas, cov hlau nyob hauv kev sim yuav tsum nyob hauv nruab nrab ntawm lub puab tsaig, thiab lub puab tsaig yuav tsum raug kaw kom nruj kom txo tau qhov yuam kev.
Cov kev ceev faj:
(1) Thaum siv high-voltage clamp meter, yuav tsum tau them nyiaj mloog mus rau theem voltage ntawm lub clamp ammeter, thiab nws yog nruj me ntsis txwv tsis pub siv lub low-voltage clamp meter los ntsuas qhov tam sim no ntawm high-voltage circuit. Thaum ntsuas nrog high-voltage clamp meter, nws yuav tsum tau ua los ntawm ob tug neeg. Cov neeg ua haujlwm tsis ua haujlwm yuav tsum tau sau daim pib ua haujlwm thib ob thaum ntsuas. Lawv yuav tsum hnav cov hnab looj tes insulating thaum ntsuas, sawv ntawm cov ntaub pua tsev insulating, thiab tsis txhob kov lwm yam khoom siv los tiv thaiv luv luv lossis hauv av.
(2) Thaum soj ntsuam lub sijhawm ntawm lub moos, yuav tsum tau saib xyuas tshwj xeeb rau kev tswj kom muaj kev nyab xeeb ntawm lub taub hau thiab qhov chaw nyob. Qhov kev ncua deb ntawm ib feem ntawm tib neeg lub cev thiab lub cev nyob yuav tsum tsis txhob tsawg tshaj li qhov ntev ntawm lub clamp meter.
(3) Thaum ntsuas ntawm lub high-voltage Circuit Court, nws yog txwv tsis pub siv cov xov hlau los txuas lub clamp ammeter mus rau lwm lub 'meter' rau kev ntsuas. Thaum ntsuas qhov tam sim no ntawm txhua theem ntawm high-voltage cable, qhov kev ncua deb ntawm lub cable xaus yuav tsum ntau tshaj 300mm, thiab cov rwb thaiv tsev yuav tsum zoo, thiab kev ntsuas tsuas yog nqa tawm thaum nws pom tau tias yooj yim.
(4) Thaum ntsuas qhov tam sim no ntawm qhov hluav taws xob qis fusible fuses lossis kab rov tav txheej txheem qis-voltage busbars, lub fusible fuses lossis busbars ntawm txhua theem yuav tsum tau tiv thaiv thiab cais nrog cov ntaub ntawv insulating ua ntej ntsuas kom tsis txhob luv luv ntawm cov theem.
(5) Nws yog nruj me ntsis txwv tsis pub ntsuas thaum ib theem ntawm cable yog grounded. Tiv thaiv tus kheej kev nyab xeeb los ntawm kev raug punctured thiab tawg vim tsis muaj rwb thaiv tsev ntawm lub taub hau cable.
(6) Rub lub hloov mus rau qhov siab tshaj plaws tom qab ntsuas lub clamp ammeter kom tsis txhob muaj kev sib tsoo overcurrent thaum siv tom ntej; thiab nws yuav tsum tau muab cia rau hauv chav qhuav.
