Feem ntau lub chav ua noj siv hluav taws xob ntau dua li lwm chav hauv tsev, thiab NEC (National Electrical Code) qhia tias chav ua noj yuav tsum tau txais kev pabcuam los ntawm ntau lub voj voog.Rau chav ua noj uas siv cov khoom siv hluav taws xob ua noj, qhov no txhais tau tias nws xav tau ntau li xya lossis ntau dua.Sib piv qhov no rau qhov yuav tsum tau ua rau chav pw lossis lwm qhov chaw nyob, qhov twg ib lub hom phiaj teeb pom kev zoo tuaj yeem ua haujlwm rau tag nrho cov teeb pom kev zoo thiab qhov hluav taws xob plug-in.
Cov khoom siv hauv chav ua noj feem ntau tau ntsaws rau hauv cov khoom siv hluav taws xob zoo tib yam ua ntej, tab sis raws li cov khoom siv hauv chav ua noj tau dhau los ua qhov loj thiab loj dua xyoo dhau los, tam sim no yog tus qauv-thiab xav tau los ntawm lub tsev cai-rau txhua yam ntawm cov khoom siv no kom muaj lub zog siv hluav taws xob uas tsis muaj dab tsi ntxiv. .Tsis tas li ntawd, chav ua noj xav tau cov khoom siv me me thiab tsawg kawg ib lub teeb pom kev zoo.
Thov nco ntsoov tias tsis yog txhua tus lej tsev hauv zos muaj cov cai tib yam.Thaum NEC (National Electrical Code) ua lub hauv paus rau feem ntau cov lej hauv zos, cov neeg zej zog tuaj yeem ua tau, thiab feem ntau ua, teeb tsa lawv tus kheej.Nco ntsoov xyuas nrog koj cov cai tswj hwm hauv zos txog cov cai rau koj lub zej zog.
01. Lub tub yees Circuit Court
Feem ntau, lub tub yees niaj hnub yuav tsum muaj 20-amp Circuit Court.Tej zaum koj yuav muaj lub tub yees me me txuas rau hauv lub teeb pom kev dav dav rau tam sim no, tab sis thaum lub sijhawm hloov kho loj, nruab ib lub voj voog (120/125-volts) rau lub tub yees.Rau qhov kev mob siab rau 20-amp Circuit Court, 12/2 non-metallic (NM) sheathed xaim nrog rau hauv av yuav xav tau rau kev xaim.
Qhov Circuit Court no feem ntau tsis xav tau GFCI kev tiv thaiv tshwj tsis yog lub qhov hluav taws xob nyob hauv 6 ko taw ntawm lub dab dej lossis nyob hauv chav nres tsheb lossis hauv qab daus, tab sis feem ntau nws yuav tsum muaj kev tiv thaiv AFCI.
02. Ntau yam Circuit Court
Ib qho hluav taws xob feem ntau xav tau 240/250-volt, 50-amp Circuit Court.Qhov ntawd txhais tau hais tias koj yuav tsum tau nruab ib lub 6/3 NM cable (los yog # 6 THHN hlau nyob rau hauv ib tug conduit) los pub ntau yam.Txawm li cas los xij, nws tsuas yog xav tau 120/125-volt receptacle rau lub hwj chim ntawm ntau yam tswj thiab lub qhov cua hood yog tias nws yog roj ntau.
Thaum lub sij hawm hloov kho loj, txawm li cas los xij, nws yog ib qho kev xav zoo rau nruab qhov hluav taws xob ntau qhov hluav taws xob, txawm tias koj yuav tsis siv nws tam sim no.Nyob rau hauv lub neej yav tom ntej, tej zaum koj yuav xav hloov mus rau ib qho hluav taws xob ntau, thiab muaj cov khoom siv hluav taws xob no yuav yog qhov muag yog tias koj puas tau muag koj lub tsev.Thov nco ntsoov tias qhov hluav taws xob ntau yuav tsum thawb rov qab mus rau phab ntsa, yog li tso lub qhov hluav taws xob kom haum.
Thaum 50-amp circuits yog qhov zoo rau ntau qhov, qee chav yuav xav tau circuits txog 60 amps, thaum cov chav me me yuav xav tau cov circuits me - 40-amps lossis txawm 30-amps.Txawm li cas los xij, kev tsim vaj tsev tshiab feem ntau suav nrog 50-amp ntau lub voj voog, vim tias cov no txaus rau feem ntau ntawm cov tsev ua noj ua haus.
Thaum lub cooktop thiab phab ntsa qhov cub yog cais chav nyob hauv chav ua noj, National Electrical Code feem ntau tso cai rau ob chav nyob los ntawm tib lub voj voog, yog tias cov khoom siv hluav taws xob sib xyaw ua ke tsis pub dhau lub peev xwm ntawm qhov kev nyab xeeb.Txawm li cas los xij, feem ntau yog siv 2-, 30-, lossis 40- amp circuits yog khiav los ntawm lub ntsiab vaj huam sib luag rau lub zog sib cais.
03. Lub tshuab ntxuav tais diav
Thaum txhim kho lub tshuab ntxuav tais diav, lub voj voog yuav tsum yog 120/125-volt, 15-amp circuit.Qhov no 15-amp Circuit Court yog pub nrog 14/2 NM xaim nrog hauv av.Koj tuaj yeem xaiv pub lub tshuab ntxuav tais diav nrog 20-amp Circuit Court siv 12/2 NM xaim nrog hauv av.Thov nco ntsoov tso cai kom txaus slack ntawm NM cable kom lub tshuab ntxuav tais diav tuaj yeem rub tawm thiab ua haujlwm yam tsis muaj kev cuam tshuam - koj tus kws kho khoom siv yuav ua tsaug rau koj.
Lus Cim: Cov tshuab ntxuav tais diav yuav xav tau ib txoj hauv kev ntawm kev sib txuas hauv zos lossis vaj huam sib luag kaw.Qhov kev xav tau no yog pom tau los ntawm cov hlua khi thiab ntsaws teeb tsa lossis lub tshuab kaw me me uas tau nruab rau ntawm lub tshuab hluav taws xob ntawm lub vaj huam sib luag kom tsis txhob poob siab.
Qee tus kws tsim hluav taws xob yuav xaim hauv chav ua noj kom lub tshuab ntxuav tais diav thiab cov khib nyiab pov tseg yog siv los ntawm tib lub voj voog, tab sis yog tias qhov no ua tiav, nws yuav tsum yog 20-amp Circuit Court thiab kev saib xyuas yuav tsum tau ua kom paub tseeb tias tag nrho cov amperage ntawm ob qho khoom siv tsis pub tshaj. 80 feem pua ntawm Circuit Court amperage ntsuas.Koj yuav tsum tau tshawb xyuas nrog cov cai tswj hwm hauv zos kom pom tias qhov no tau tso cai.
GFCI thiab AFCI cov kev cai sib txawv los ntawm kev txiav txim mus rau kev txiav txim.Feem ntau, lub voj voog yuav tsum muaj kev tiv thaiv GFCI, tab sis yog tias yuav tsum muaj kev tiv thaiv AFCI lossis tsis yog nyob ntawm qhov kev txhais lus hauv zos ntawm cov cai.
04. Cov khib nyiab pov tseg Circuit Court
Cov khib nyiab pov tseg ua txoj haujlwm ntawm kev ntxuav cov messes tom qab noj mov.Thaum thauj cov khib nyiab, lawv siv me ntsis amperage zoo thaum lawv zom cov tsis kam.Kev pov tseg cov khib nyiab yuav tsum muaj 15-amp Circuit Court, pub los ntawm 14/2 NM cable nrog rau hauv av.Koj tuaj yeem xaiv pub cov khoom pov tseg nrog 20-amp Circuit Court, siv 12/2 NM xaim nrog hauv av.Qhov no feem ntau ua tiav thaum cov cai hauv zos tso cai rau kev pov tseg kom sib koom ua ke nrog lub tshuab ntxuav tais diav.Koj yuav tsum nco ntsoov xyuas nrog koj tus kws tshuaj xyuas lub tsev saib xyuas seb qhov no puas raug tso cai hauv koj thaj chaw.
Cov kev txiav txim sib txawv tuaj yeem muaj cov kev cai sib txawv uas xav tau GFCI thiab AFCI kev tiv thaiv rau kev pov tseg pov tseg, yog li thov xyuas nrog koj cov tub ceev xwm hauv zos rau qhov no.Xws li ob qho tib si AFCI thiab GFCI kev tiv thaiv yog txoj hauv kev nyab xeeb tshaj plaws, tab sis vim tias GFCIs tuaj yeem ua rau "phantom tripping" vim lub cev muaj zog pib nce, tus kws tshaj lij hluav taws xob feem ntau tso GFCIs ntawm cov kab hluav taws xob hauv zos uas tso cai rau nws.Kev tiv thaiv AFCI yuav xav tau vim tias cov kab hluav taws xob no ua haujlwm los ntawm kev hloov phab ntsa thiab cov khoom pov tseg yuav raug xaim los ntsaws rau hauv lub qhov hluav taws xob phab ntsa.
05. Microwave Cub Circuit Court
Lub qhov cub microwave xav tau 20-amp, 120/125-volt Circuit Court los pub nws.Qhov no yuav xav tau 12/2 NM xaim nrog hauv av.Microwave ncu tuaj nyob rau hauv ntau yam thiab ntau thiab tsawg, uas txhais tau hais tias ib co yog countertop qauv thaum lwm lub microwaves mount saum lub qhov cub.
Txawm hais tias nws yog ib qho uas pom lub qhov cub microwave ntsaws rau hauv cov khoom siv hluav taws xob, qhov cub microwave loj dua tuaj yeem kos ntau npaum li 1500 watts yog li xav tau lawv tus kheej cov khoom siv hluav taws xob.
Qhov Circuit Court no tsis xav tau GFCI kev tiv thaiv nyob rau hauv ntau qhov chaw, tab sis qee zaum nws yuav tsum tau qhov twg cov khoom siv ntsaws rau hauv lub qhov hluav taws xob siv tau.Kev tiv thaiv AFCI feem ntau xav tau rau lub voj voog no vim tias cov khoom siv txuas rau hauv qhov hluav taws xob.Txawm li cas los xij, microwaves pab txhawb rau phantom loads, yog li koj yuav xav txog kev tshem tawm thaum tsis siv.
06. Teeb pom kev zoo Circuit Court
Muaj tseeb tiag, chav ua noj yuav tsis ua tiav yam tsis muaj lub teeb pom kev zoo kom ci qhov chaw ua noj.Ib qho 15-amp, 120/125-volt nplooj siab Circuit Court yog xav tau yam tsawg kawg nkaus rau lub hwj chim chav ua noj teeb pom kev zoo, xws li lub qab nthab fixtures, canister teeb, under- txee teeb, thiab sawb teeb.
Txhua teeb teeb yuav tsum muaj nws tus kheej hloov kom tso cai rau koj tswj lub teeb pom kev zoo.Tej zaum koj yuav xav ntxiv lub qab nthab kiv cua los yog tej zaum lub txhab nyiaj ntawm cov teeb pom kev yav tom ntej.Vim li no, nws yog ib lub tswv yim zoo rau nruab 20-amp Circuit Court rau kev siv teeb pom kev zoo, txawm tias code tsuas yog xav tau 15-amp circuit.
Hauv feem ntau cov cheeb tsam, ib lub voj voog uas muab cov khoom siv teeb pom kev zoo nkaus xwb tsis tas yuav muaj kev tiv thaiv GFCI, tab sis nws yuav xav tau yog tias qhov hloov pauv ntawm phab ntsa nyob ze ntawm lub dab dej.Kev tiv thaiv AFCI feem ntau xav tau rau txhua lub teeb pom kev zoo.
07. Cov khoom siv hluav taws xob me me
Koj yuav xav tau ob lub zog 20-amp, 120/125-volt circuits rau saum koj lub txee rau saum koj cov khoom siv me me, nrog rau cov khoom siv xws li toasters, hluav taws xob griddles, kas fes pots, blenders, thiab lwm yam. ;koj tuaj yeem nruab ntau dua yog tias koj xav tau lawv.
Thov sim xav txog qhov twg koj yuav tso cov khoom siv rau ntawm koj lub countertop thaum npaj cov circuits thiab qhov chaw ntawm qhov hluav taws xob.Yog tias tsis ntseeg, ntxiv cov circuits ntxiv rau yav tom ntej.
Circuits powering plug-in receptacles pab cov khoom siv countertop yuav tsumib txwmmuaj GFCI thiab AFCI kev tiv thaiv rau kev saib xyuas kev nyab xeeb.
Post lub sij hawm: Mar-01-2023