Qhov kawg ntawm kev qhia hluav taws xob kev nyab xeeb rau 2025

Kab lis kev cai ntawm kev tiv thaiv

Muaj hluav taws xob kev nyab xeeb mus dhau txoj cai yooj yim. Nws yog hais txog kev tsim cov kab lis kev cai ntawm kev tiv thaiv. Hluav taws xob yog qhov tsis pom tab sis muaj kev phom sij txaus ntshai uas yuav tsum muaj txoj hauv kev zoo, tsis yog cia siab rau qhov zoo tshaj plaws. Hauv ib qho chaw muaj kev teeb tsa, cov ntaub ntawv kev nyab xeeb lub hauv paus ntawm ob tus neeg ua haujlwm zoo- kev ua haujlwm thiab ua haujlwm du.

Cov lus qhia no nyob ntawm ib lub tswv yim yooj yim: kev nyab xeeb tiag tiag los ntawm kev nkag siab txog cov kev pheej hmoo siab thiab paub yuav tswj hwm lawv li cas.

Peb yuav tshawb xyuas lub tsev tseem ceeb ntawm kev muaj zog muaj hluav taws xob kev nyab xeeb kev pab cuam. Koj yuav kawm txog qhov kev phom sij uas koj ntsib txhua hnub. Peb yuav ua raws li cov txheej txheem tswj nruj, tsom mus rau hauv lub neej - txuag cov xauv / tag nrho cov txheej txheem tas nrho.

Koj tseem yuav pom tias yuav siv cov cuab yeej yog thiab cov khoom tiv thaiv tus kheej (PPE). Thaum kawg, peb yuav qhia li cas cov cuab yeej saib xyuas tsis tu ncua tsis yog hais txog kev ua kom khiav txhua yam kev nyab xeeb. Nov yog koj txoj kev tsheb ntawm kev tshawb xav rau tiag- kev xyaum.

Qhov 1: Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob

Seem no lays rau hauv av. Yuav kom ntaus tus yeeb ncuab, koj yuav tsum xub paub nws. Peb yuav piav qhia txog cov hluav taws xob tseem ceeb tuaj yeem ua rau koj mob hauv ib puag ncig kev lag luam. Peb yuav txav mus rau cov lus ceeb toom yav dhau los kom muab koj cov duab ntshiab ntawm kev phom sij tshwj xeeb.

Hluav Taws Xob: Qhov Kev Nyab Xeeb Silent

Hluav taws xob hluav taws xob tshwm sim thaum hluav taws xob hluav taws xob ntws los ntawm koj lub cev. Nws yog ntsiag to thiab ntaus tam sim ntawd.

Qhov no tshwm sim los ntawm kev sib chwv nrog cov xov hlau nyob, kov cov khoom siv tsis zoo, lossis los ntawm qhov chaw tsis tau zoo. Txoj kev tam sim no yuav siv sij hawm los ntawm koj lub cev txiav txim siab tias kev raug mob hnyav npaum li cas.

Lub Koom Haum Kev Nyab Xeeb Hauv Tebchaws Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb thiab kev noj qab haus huv (Niosh) qhia tias saum 10 txhiab txhiab (ma) ua rau muaj kev poob siab thiab ploj ntawm cov leeg kev tswj hwm. Koj tso tsis tau mus. Raug los ntawm 100 txog 200 ma tuaj yeem ua rau ventricular fibrillation - rhu} Kev tsis muaj qab hau, tsis muaj lub plawv tsis tau siv yog tias tsis kho tam sim ntawd.

Tam sim no ntws los ntawm koj lub cev los ntawm kev hu rau hauv av.

Qhov hnyav loj yog nyob ntawm lub zog tam sim no, txoj kev, thiab sijhawm ntev.

Txawm tias muaj hluav taws xob tsawg tuaj yeem tua tau raws li txoj cai.

Arc Flash & Arc Mick

ARC Flash Flas yog kev ua nruj ua tsiv, tso tawm hluav taws xob tawg tau los ntawm hluav taws xob tsis ua haujlwm. Xav tias nws yog lub luv luv voj voog ntawm huab cua.

Cov xwm txheej no feem ntau pib nrog kev sib cuag ntawm kev sib cuag, xws li poob ib qho cuab yeej, lossis los ntawm cov khoom tsis ua haujlwm, av tsim av, lossis xeb. Qhov tshwm sim yog kev lag luam tawg ntawm lub zog loj heev.

Cov phom sij los ntawm ntau qhov chaw. Ib qho Arc Flash tsim kev mob siab kub - txog li 35,000 txog ntawm 55,000 tus neeg kub ntev dua li lub hnub saum npoo av) {}} ua rau kub ntxhov heev. Nws kuj tseem tsim lub siab yoj (lub arc tawg) uas tuaj yeem pov koj hla ib chav thiab tso cov hlau tawg ntawm kev kub ceev. Lub teeb dig muag tuaj yeem ua rau koj lub qhov muag puas mus tas li.

Hluav Taws Xob Hluav Taws Xob: Ntau Dua Cov tawv nqaij tob

Hluav taws xob hluav taws xob yog cov nyom thiab feem ntau tsis zoo dua li lawv saib. Koj yuav tsum paub qhov sib txawv ntawm ob hom.

Thermal Burnts tuaj ntawm cov cua sov ntawm lub arc flash, hlawv cov tawv nqaij thiab khaub ncaws. Kev kub hluav taws xob muaj tseeb thaum tam sim no ntws ncaj qha los ntawm lub cev nqaij.

Raws li ntws tawm, nws ua noj nqaij cov nqaij los ntawm sab hauv. Qhov kev puas tsuaj sab hauv no raws txoj kev tam sim no feem ntau tsis pom ntawm daim tawv nqaij tab sis tuaj yeem rhuav tshem cov leeg, thiab thiab cov kabmob sab hauv. Kev nkag mus thiab tawm qhov txhab yuav zoo me me thaum nkaum kev raug mob sab hauv.

Ntu 2: Cov Hierarchy Ntawm Kev Tswj Xyuas

Ib txoj kev ntse mus rau kev lag luam hluav taws xob siv ib lub moj khaum lees paub dav: cov hierarchy ntawm kev tswj hwm. Qhov txheej txheem no tau ua rau kev ntsuas kev nyab xeeb ntawm feem ntau tsawg kawg.

Nws muab koj tus kws tshaj lij, txoj hauv kev los xav txog kev txo qis kev phom sij. Lub hom phiaj yog txav los ntawm kev ntsuas reactive, zoo li kev vam khom ntawm Ppe, kom ua kom muaj kev cuam tshuam, engineered daws teeb meem uas tshem tawm cov kev daws teeb meem ntawm nws qhov chaw.

Daim duab no hierarchy li upside - down pyramid. Cov kev tswj tau zoo tshaj plaws nyob ntawm qhov dav sab saum toj. Qhov tsawg kawg yog nyob ntawm nqaim hauv qab.

Kev tshem

Hloov chaw

Engineering Pawg

Cov tswj hwm tswj

Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE)

Cia peb tawg cia txhua qib nrog kev muaj cov piv txwv hluav taws xob piv txwv.

Kev tshem tawm: Qhov no yog kev tswj tau zoo tshaj plaws. Nws txhais tau tias lub cev tshem tawm cov phom sij kiag li. Tus qauv kub rau hluav taws xob ua haujlwm yog de-} energizing cov khoom siv. Ua haujlwm ntawm kev tuag Circuit Court tshem tawm kev pheej hmoo thiab arc flash txaus ntshai.

Hloov chaw: Qhov no cuam tshuam nrog hloov cov kev phom sij nrog me dua. Piv txwv li, thaum cov txheej txheem xav tau kev tso cai, tsim cov txheej txheem los siv qis dua- voltage cov khoom tuaj yeem txo qhov mob hnyav ntawm cov xwm txheej hluav taws xob.

Kev Tswj Xyuas Chaw Tsim Tshuaj: Cov tswj no cais cov neeg los ntawm cov phom sij uas tsis xav tau tshwj xeeb kev ua los ntawm lawv. Cov piv txwv suav nrog kev teeb tsa insulated insulated thoob plaws thaj chaw, siv interlocks uas cia li kaw lub zog thaum qhib av {{1}-

Cov tswj hwm tswj xyuas: Cov no yog cov txheej txheem thiab cov cai uas hloov pauv cov neeg ua haujlwm li cas. Qib no suav nrog kev tsim cov kev xyaum ua haujlwm kom nyab xeeb, muab cov ntawv ceeb toom kev ceeb toom, thiab feem ntau yuav tsum siv cov ntawv ceeb toom muaj zog / tag nrho.

Cov khoom siv tiv thaiv tus kheej (PPE): Nov yog koj txoj kab kawg ntawm kev tiv thaiv. PPE, zoo li voltage - rated hnab looj tes thiab arc- rated khaub ncaws, tsis tiv thaiv kev sib tw ntawm kev tshwm sim. Nws lub hom phiaj tsuas yog txo qis kev kawm hnyav yog tias txhua yam kev tswj tsis tau. Nws yog qhov tseem ceeb tab sis yuav tsum tsis txhob ua koj tus thawj txoj kev tiv thaiv.

Ntu 3: Lockout / Tagout (Loto)

Lockout / Tagout yog koj qhov kev tswj hwm tseem ceeb tshaj plaws. Mastering cov txheej txheem no yog qhov yuav tsum -} muaj kev txawj rau ib tus neeg ua haujlwm lossis ze cov cuab yeej siv.

Loto lub hom phiaj yog qhov yooj yim tab sis tseem ceeb: tiv thaiv kev npaj txhij txog kev npaj ua lossis lub zog tso tawm thaum cov khoom siv tau ua haujlwm lossis tswj hwm. Nws ua kom lub tshuab tsis tuaj yeem rov qab yuav -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} pa ntawm nws ua tiav lawv txoj haujlwm thiab tshem lawv tus kheej ntsuas phoo.

Hauv peb txoj kev paub dhau los, cov kev phom sij tshaj plaws tab tom xav tias Circuit Court yog tuag tsuas yog vim tias tus hloov pauv tawm lossis ib qho breaker tau hla. Loto muab ib tus txheej txheem raug cai, cov txheej txheem txheeb xyuas kom ntseeg tau tias xoom zog. Hom, muaj peev xwm ua neeg tuag tsis muaj kev tuag rau voltage tom qab thov tag nrho cov khoom siv hluav taws xob, suav nrog kev siv hluav taws xob rov qab lossis muaj zog.

Cov txheej txheem no yuav tsum tau los ntawm cov cai zoo li OSHA Txuj Ci 1910.147, "tswj ntawm lub zog muaj kev phom sij."

6 cov kauj ruam tshaj loto

Ib cov txheej txheem Loto kom zoo ua raws li qhov tseeb, kauj ruam -- kauj ruam txheej txheem. Txhua kauj ruam yuav tsum ua kom tiav nyob rau hauv kev txiav txim.

Kev npaj: ua ntej kov ib qho khoom siv, koj yuav tsum npaj. Qhov no txhais tau kev nkag siab txhua lub peev txheej lub zog sib txuas nrog lub tshuab. Txheeb xyuas cov cim hluav taws xob, txheeb xyuas cov kev tsis sib xws, thiab txiav txim siab lwm yam hluav taws xob zoo li hydraulic, pneumatic, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanatatic, lossis mechanical, lossis mechanatatic, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanical, lossis mechanatatic, lossis mechanical, lossis mechanical, lossis mechanatatic, lossis mechanical, lossis mechanical, lossis tshuab (lub zog nqus, springs).

Kaw: Siv cov kev tswj hwm kev ua haujlwm kom kaw cov khoom. Qhov no ua raws cov txheej txheem txheem no thiab tiv thaiv kev xav tsis tau Jolts rau tshuab.

Kev rho tawm: Qhov no yog qhov kev txiav txim ntawm lub cev sib cais khoom siv los ntawm nws cov zog. Mus rau ntawm cov cuab yeej cais tawm lub zog sib cais, xws li tus kab ke hluav taws xob lossis txav mus rau "tawm" lossis "qhib".

Lockout thiab cimOUT: Thov koj lub thawv rau koj tus kheej mus rau cov cuab yeej cais tawm hauv txoj kev uas tuav nws hauv "txoj haujlwm. Tom qab ntawd xa daim pib rau koj lub xauv. Daim pib yuav tsum tau qhia meej meej tus neeg ua haujlwm (koj lub npe), hnub tim, thiab ib nyuag vim li cas rau lub xauv (piv txwv li, "lub zog hloov").

Chaw nyob cov khoom siv khaws cia (cov khoom ua kom muaj zog tuaj yeem khaws lub zog txawm tias ua neeg txiav txim. Koj yuav tsum tso lossis txwv lub zog no. Qhov no tuaj yeem txhais tau tias los ntshav capacitors, thaiv lossis zawm caj pas uas tuaj yeem txav vim lub ntiajteb txawj nqus, lossis cov kab pneumatic pneumatic.

Kev txheeb cais ntawm kev cais: Nov yog cov kauj ruam tseem ceeb tshaj plaws. Koj yuav tsum tam sim no ua pov thawj lub kaw lus nyob ntawm lub zog xoom. Siv qhov ntsuas ntsuas kom zoo thiab kuaj kom haum, sim cov Circuitalcuit Court kom paub tseeb tias tsis muaj voltage. Qhov kev ntsuas no yuav tsum yog ua ntu - {4 4}}}} {{{6- av. Tsuas yog tom qab koj tau txheeb xyuas lub Volts Volts yog nws muaj kev nyab xeeb pib ua haujlwm.

Feem 4: PPE & Cov Khoom Kuaj

Seem no npog koj kab kawg ntawm kev tiv thaiv thiab cov cuab yeej koj siv los txheeb xyuas kev nyab xeeb. Cov khoom siv tiv thaiv tus kheej (PPE) thiab ntsuas cov ntsuas yog qhov tseem ceeb ntawm cov kev pab cuam hluav taws xob kev nyab xeeb.

Nco ntsoov tias PPE tsis tiv thaiv kom tsis txhob muaj kev huam yuaj. Nws tau tsim los txo qhov mob hnyav thaum lwm txoj kev tswj tau ua tsis tiav. PPE xaiv yuav tsum ncaj qha txuas rau qhov ntsuas kev phom sij. Xav cov khoom kuaj, kev tsom xam yog cov tshev kev nyab xeeb ua ntej txhua qhov siv.

PPE tsis yog xaiv

Thaum ua haujlwm rau lossis ze rau kev ua kom muaj kev sib tw uas kov yeej tsis tau, qhov tseeb PPE yog qhov yuav tsum ua.

Voltage -} Cov hnab looj tes looj hnab looj tes yog thawj tiv thaiv los ntawm hluav taws xob. Lawv yuav tsum tau soj ntsuam rau kev txiav lossis pinholes ua ntej txhua qhov kev siv los ntawm kev ua yeeb yam huab cua (dov lub cuff kom txav cua thiab tshawb xyuas cov dej xau). Lawv kuj xav tau kev sim hluav taws xob uas muaj xwm txheej hluav taws xob.

Arc -} Nyob (AR) lossis nplaim - retardant (fr) khaub ncaws tseem ceeb. Fr Cov Khaub Ncaws Ncauj thiab tus kheej - kev tua hluav taws, tab sis ntawm A nyias tsho tshwj xeeb muaj kev tiv thaiv Arc Flash thermal zog Qhov yuav tsum tau ntsuas yog txiav txim los ntawm ARC Flash kev tshuaj ntsuam xyuas.

Lub taub hau, ntsej muag, thiab kev tiv thaiv qhov muag tau tas li. Thaum tsawg kawg, qhov no suav nrog lub kaus mom tawv thiab kev nyab xeeb tsom iav. Thaum muaj Arc Flash Dress tshwm sim, ib qho arc - rated lub ntsej muag ntaub thaiv lossis tag nrho arc nyem Hood yog qhov yuav tsum tau ua.

Lub NFPA 70E tus qauv qhia PPE Pawg raws li cov cuab yeej ntsuas hluav taws xob.

Koj lifesaving multimeter

Koj txoj kev sib xyaw ua ke tsis yog ib qho cuab yeej kuaj mob - nws yog ib qho khoom siv kev nyab xeeb siv los soj ntsuam voltage tsis muaj. Nws txoj kev ntseeg tau yog qhov tseem ceeb.

Ua ntej kev sim txhua yam, koj yuav tsum xub kuaj koj lub ntsuas. Visually soj ntsuam lub cev meter, kev sim ua, thiab kev sim ua rau kev puas tsuaj xws li cov hluav taws xob tawg. Kuaj xyuas tias lub roj teeb tau zoo.

Qhov tseem ceeb tshaj plaws, ua ib tug nyob -} tuag- nyob pov thawj ntsuas. Ua ntej, sim ib qho paub nyob (xws li 120V qhov hluav taws xob) kom paub meej tias lub ntsuas kub nyeem kom raug (nyob). Thib ob, sim cov Circuit Court koj npaj ua haujlwm rau kom paub meej tias xoom voltage (tuag). Thaum kawg, rov -}} Test cov paub nyob kom ntseeg tau tias koj lub ntsuas ntsuas tsis swb thaum lub sijhawm ntsuas (nyob).

Thaum noj cov kev ntsuas, siv cov kev nyab xeeb. Thaum twg ua tau, siv "ib qho - Cov cai tuav tes" los kuaj, kom koj sab tes ntawm kev ua haujlwm. Qhov no txo ​​qis txoj hmoo ntawm kev hla dhau ntawm koj lub hauv siab thiab lub siab. Nco ntsoov tias koj lub ntsuas ntsuas muaj cov qhab nia raug (piv txwv li, miv III lossis miv III lossis Cwj IV rau kev lag luam feem ntau) rau koj qhov chaw ua haujlwm feem ntau.

Ntu 5: Kev Tu Siab Ua Haujlwm

Zoo {- tswj cov cuab yeej siv tau muaj nyob rau hauv cov khoom siv ceevfaj. Ntu no tau txav mus rau hauv lub cev nqaij daim tawv ntawm lub hwj chim xa tawm hauv qab nws tus kheej.

Cov txij nkawm ua haujlwm txuas ncaj qha rau kev lag luam hluav taws xob los ntawm kev tiv thaiv cov cuab yeej ua tsis tiav uas tuaj yeem ua rau kev puas tsuaj xws li arc flash. Peb yuav tshuaj xyuas lub ntsiab ntawm cov tshuab hluav taws xob thiab muab cov lus qhia ua kom paub txog cov teeb meem muaj peev xwm.

Ntu no yog sau los ntawm cov kws tshaj lij kev paub txog cov kev xav. Lub hom phiaj yog los muab cov kev pom tau zoo koj tuaj yeem siv hauv daim teb kom cov chaw teeb meem ua ntej nws pib.

Qhov tseem ceeb Cheebtsam & ua tsis tiav

Txhua qhov ntawm cov khoom siv hluav taws xob muaj cov ntsiab lus tsis ua tiav tias kev saib xyuas tau.

Switchgear thiab Circuit Courricter yog lub kaw lus lub siab. Qhov teeb meem tshwm sim feem ntau peb pom yog overheating ntawm cov ntsiab lus sib txuas, feem ntau los ntawm xoob kev txiav tawm. Sij hawm dhau los, Breaker Travate mechanism kuj tseem tuaj yeem ua tsis tau qeeb lossis ua tsis tiav, uas yog vim li cas thiaj li sim ua ntu zus yog qhov tseem ceeb heev.

Transformers feem ntau muaj zog ua kom khov, tab sis lawv muaj kev kub ntxhov rau kev kub ntxhov. Qhov no tuaj yeem tshwm sim los ntawm overloading, tab sis kuj yog los ntawm kev ua kom zoo nkauj distortion los ntawm niaj hnub hluav taws xob ntim. Saib rau cov roj xau ntawm cov kua -}}}}}}}} kev puas tsuaj rau qhuav- hom transformers.

VAJ HUAM SIB LUAMLWMs thiab Lub Cev Muaj Zog Tswj Offers (McCs) yog qhov chaw uas ntau qhov kev ua tsis tiav. Cov ntaub xaim xaim xaim yog qhov tseem ceeb ntawm kev kub ntxhov thiab kev ua tsis tiav. Peb tseem nquag pom cov kev voj voog overloaded thiab tsis raug rau cov cawv tawg, uas swb lub hom phiaj ntawm overcurrent tiv thaiv.

Los ntawm teb: kev daws teeb meem

Ntawm no yog cov lus qhia ua tau raws li cov tsos mob uas peb tau ntsib. Txhua zaus yuav tsum tau hais txog - energize thiab loto ua ntej ua kev soj ntsuam lossis ua haujlwm kom raug.

Qhov 6: Kev Kawm Kev Kawm: 480V MCC kaw

Qhov kev kawm no coj txhua yam peb tau tham txog -, Loto, thiab sim}- ntiaj teb kev sib tw. Nws muab kev sib tw ua kom muaj kev ntseeg siab thiab txhawb kev kawm.

Cov xwm txheej: Pab pawg txij nkawm yuav tsum hloov tus kws ua txhaum cai hauv 480V lub cev muaj zog tswj plawv (MCC) cov khoom siv hluav taws xob uas muab siv conveyor. Peb yuav ua raws li ib tus kws tshaj lij, 'raws li tus neeg kawm qib siab qhia nws.

Txoj haujlwm luv luv: Pab pawg ua ke sib ntsib ntawm MCC. Lawv tshuaj xyuas cov haujlwm tau txais thiab siv hluav taws xob ib - kab kos duab los txheeb xyuas lub thoob tseeb, 'MCC-07-C'. Lawv sib tham txog cov phom sij: 480v poob siab thiab lub siab Arc flash muaj peev xwm. Lawv txheeb xyuas lub zog ib zaug: tus breaker tuav ntawm lub thoob pem hauv ntej.

Ua tsis tau PPE: Raws li Arc Flash daim ntawv lo rau ntawm MCC, yuav tsum tau PPE yog qeb, lub kaus mom tawv, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb, thiab tsom iav kev nyab xeeb. Ua ntej nce cov iav ua kom haum, lawv kuj tso rau ntawm ARC Flash lub ntsej muag cov ntaub thaiv thiab voltage {}} tso cov hnab looj tes roj hmab nrog cov tiv thaiv tawv.

Lub kaw & kev sib cais: Cov saib xyuas kev saib xyuas neeg laus raws li alex sawv ntsug rau ib sab ntawm MCC thoob, tsis ncaj qha pem hauv ntej. Siv nws sab tes laug los txo lub cev raug, alex khov kho tus breaker tuav rau "tawm." Lawv hnov ​​ib qho khoom "sib tsoo" raws li lub breaker qhib.

Lub Lockout: Alex qhib cov ntaub thaiv me ntawm cov breaker kov thiab siv nws tus kheej lub xauv. Nws txuas nrog nws cov cim npe nrog nws lub npe thiab hnub tim. Cov thev naus laus zis tshaj lij, uas tseem yuav ua haujlwm rau nws, tom qab ntawd siv nws lub xauv thiab tag tom ntej to ecex's. Qhov no yog pab pawg nyo yaus.

Cov lus qhia tseem ceeb: Qhov no yog lub sijhawm ntawm qhov tseeb. Kev saib xyuas los ntawm cov thev naus laus zis tshaj lij, alex npaj nws tshawb xyuas multometer. Nws ua cov nyob - tuag - nyob xeem.

Ua ntej, nws pom nyob ze 120v txij nkawm kev lag luam thiab kev sim nws. Lub 'meter nyeem ntawv ~ 120v. Nws ua haujlwm. (Nyob).

Tom ntej no, lawv ua tib zoo rack tawm ntawm MCC thoob ob peb nti kom nkag mus rau oob khab txoj kab {{}} sab terminals. ALEX kev ntsuam xyuas rau voltage: Theem A rau B, Theem B rau C, thiab theem A rau C. Tag nrho peb nyeem 0V. Tom qab ntawd nws sim ua theem A rau hauv av, Theem B rau hauv av, thiab theem C rau hauv av. Txhua Nyeem 0V. Lub Circuit Court tau lees paub siv hluav taws xob hluav taws xob. (Tuag).

Thaum kawg, Alex Rov qab mus rau 120V txais kev siv thiab kuaj nws dua. Lub 'meter nyeem ntawv ~ 120v. Qhov no tshaj tawm lub ntsuas lub ntsuas lub caij ua tsis tiav thaum xoom {{}}} voltage ntsuas. (Nyob).

Ua haujlwm ua haujlwm: Tsuas yog tam sim no, nrog xoom Zog lub xeev tshawb xyuas, ua lawv tshem tawm voltage - rated hnab looj tes thiab ntsej muag. Tam sim no lawv tuaj yeem nyab xeeb thaum lub tshuab ua haujlwm ntawm kev tsis muaj kev ywj pheej thiab hloov tus kws ua txhaum cai.

Rov qab mus rau kev pabcuam: Thaum tus dawb tsuas yog tsim kho thiab Wired, cov txheej txheem rov qab. Txhua yam cuab yeej raug tshem tawm, daim npog tau hloov, thiab cov thoob khib rov qab rau hauv. Alex thiab cov thev naus laus zis tshem tawm lawv tus kheej lub xauv thiab tag. Tom qab kuaj xyuas thiab kev sib txuas lus kawg nrog kev ua haujlwm, tus breaker yog tig rov qab, rov kho zog rau lub cev muaj zog.

Xaus: Tus nqi tshaj lij

Muaj hluav taws xob kev nyab xeeb yog kev qhuab qhia ua rau ntau tus ncej. Los ntawm kev nkag siab tseem ceeb ntawm kev phom sij, koj paub tus yeeb ncuab. Los ntawm mastering cov hierarchy ntawm kev tswj hwm, koj kawm paub lub tswv yim kom yeej nws.

Lub tswv yim no tau muab tso rau hauv kev coj ua los ntawm kev ceevfaj, tsis yog - Cov txheej txheem sib ceg ntawm cov txheej txheem xauv / tag nrho. Nws tau txais kev txhawb nqa los ntawm kev siv PPE raug thiab mob siab rau cov cuab yeej ntsuas kom raug. Thaum kawg, nws tau txhawb nqa los ntawm kev tu ua ke ntawm cov khoom faib fais fab, uas tiv thaiv tsis tiav ua ntej lawv tshwm sim.

Thaum kawg, kev nyab xeeb yog ntau dua daim ntawv txheeb lossis kev cai tswjfwm.

Nkag siab txog kev phom sij: poob siab, arc flash, hlawv.

Siv cov hierarchy ntawm kev tswj: tshem tawm cov kev phom sij ua ntej.

Master Loto: koj lub neej tseem ceeb tshaj plaws -}} txuag cov txheej txheem.

Txheeb xyuas lub zog xoom: kev ntseeg siab tab sis txheeb xyuas nrog koj lub ntsuas.

Muaj cov cuab yeej siv: Qhov kev nyab xeeb yog qhov zoo - tswj hwm ib qho.

Kev quaj ntsuag cov ntsiab cai no qhia txog kev cog lus rau koj tus kheej, koj cov npoj yaig, thiab koj txoj haujlwm. Kab lis kev cai ntawm kev nyab xeeb yog lub cim ntawm tus kws tshaj lij.

Kuj

Hluav Taws Xob Kev Nyab Xeeb Cov Khoom Siv Hluav Taws Xob Cov Tsheb Them Tsheb

Yuav ua li cas kom koj lub tsev ntse muaj kev nyab xeeb los ntawm cov hluav taws xob muaj xwm txheej

Yuav ua li cas lub zog tshiab tsav tsheb kom tsawg - voltage hluav taws xob sib xyaw

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