Yuav ua li cas ntsuas qhov to nrog multimeter? Distribution box leakage check method
Ua ntej siv lub tshuab hluav taws xob txhawm rau txhawm rau txhawm rau txhawm rau hauv lub txee xa khoom lossis lub thawv xa khoom, peb yuav tsum xub saib lub thawv xa khoom kom pom qhov tshwm sim txhaum cai, dab tsi yog cov yam ntxwv pom tseeb; Thib ob, los ntawm qhov chaw los saib seb puas muaj qhov tsis txaus ntseeg ntawm qhov tsis ua haujlwm, thiab tom qab ntawd mus rau kauj ruam tom ntej hauv kev tshuaj xyuas.
1. ua ntej disconnect lub ntsiab disconnect hloov ntawm peb lub hwj chim inlet, tua hluav taws xob load ntawm tag nrho cov loads, xws li unplugging lub tub yees, disconnecting dej twj tso kua mis hloov, thiab lwm yam.
2. Muab lub tshuab hluav taws xob digital tso rau ntawm 200M ohms iav, tus cwj mem ntawm qhov chaw thauj khoom ntawm ib qho ntawm ob lub xov hlau tawm, lwm tus cwj mem kov phab ntsa, nyiam dua kov cov xaim hauv av lossis ib ntus grounding hlau. Tos rau lub multimeter ntawm cov zaub ntawm tus naj npawb ntawm qhov ruaj khov, nyeem tawm cov nqi hluav taws xob tsis zoo ntawm cov kab tseem ceeb, yog tias tus nqi hluav taws xob tsis zoo yog tsawg dua 0.5 megohm, ces nws yog cov kab tseem ceeb tawm ntawm qhov teeb meem, yog tias cov rwb thaiv tsev tsis kam. nyob rau hauv 0.5 megohm ntau tshaj qhov uas yuav txiav txim tau yog lub ntsiab kab tawm ntawm qhov teeb meem. Ntsuas lwm cov hlau nyob rau hauv tib txoj kev, kuj xyuas cov nqi kom pom tias cov kab tseem ceeb yog teeb meem.
3. Tshawb xyuas cov nqi hluav taws xob tiv thaiv hluav taws xob ntawm lub sub-circuit thiab txhua lub tshuab hluav taws xob, kuj siv tib txoj kev los ntsuas ib qho los ntawm ib qho, kom txog rau thaum koj pom qhov txhaum.
Kev ceev faj rau kev ua haujlwm
1. thaum siv 200M thaiv ntawm multimeter ohmmeter, xyuam xim rau cov hlau ntawm tus cwj mem tsis tuaj yeem kov los ntawm tes thaum ntsuas, uas yuav ua rau kev nyeem ntawv tsis raug. 2. Thaum ntsuas qhov rwb thaiv tsev tsis kam ntawm txhua yam khoom siv hluav taws xob, tib txoj kev yog siv los ntsuas qhov rwb thaiv tsev ntawm txhua lub tshuab hluav taws xob kom txog thaum pom qhov txhaum.
2. Thaum ntsuas txhua yam khoom siv hluav taws xob, ua tib zoo saib xyuas qhov tso tawm ua ntej, txhawm rau tiv thaiv cov capacitive tam sim no hauv cov khoom siv hluav taws xob los ntawm kev ua phem rau tib neeg.
Txoj kev no yog ib txoj hauv kev zoo dua los nrhiav kev ua txhaum thaum tsis muaj hluav taws xob. Txoj kev no kuj tseem siv tau rau cov neeg siv hluav taws xob thiab cov nroj tsuag xau ntawm kev tshawb fawb, tab sis hauv kev tshawb nrhiav, tsis yog tsuas yog txiav tawm lub zog hluav taws xob rau hauv kab, tab sis kuj yuav tsum tau txiav tawm ntawm xoom kab, kom tsis txhob muaj kev sib tsoo hluav taws xob.
