Hauv kev ua haujlwm ntawm lub zog thiab kev tsim kho, kev xaiv ntawm cov cables yog qhov tseem ceeb rau kev ua haujlwm zoo, kev nyab xeeb thiab kev ruaj ntseg ntev ntawm kev xa hluav taws xob. THWN cables thiab THHN cables yog ob hom kab siv dav siv uas ua lub luag haujlwm tseem ceeb hauv ntau lub tshuab hluav taws xob, tshwj xeeb tshaj yog hauv kev tsim kho thiab kev lag luam. Txawm hais tias ob lub cables zoo sib xws hauv cov tsos thiab kev tsim kho, lawv muaj qee qhov sib txawv tseem ceeb, uas feem ntau cuam tshuam rau lawv cov khoom siv, qhov chaw siv tau, thiab daim ntawv thov. Kab lus no yuav tshawb txog qhov sib txawv ntawm THWN cables thiab THHN cables kom ntxaws los pab cov neeg siv nkag siab txog lawv cov yam ntxwv thiab yuav xaiv txoj cai cable li cas.
1. Kev txhais ntawm THWN cable thiab THHN cable
THWN cable (Thermoplastic Thaum tshav kub kub thiab dej-resistant Nylon-coated cable) yog ib tug cable nrog kub thiab dej tsis kam. Nws txheej txheej feem ntau yog coated nrog nylon txheej, uas muab cov dej ntxiv thiab tshuaj tiv thaiv thiab tsim nyog siv rau hauv qhov chaw ntub dej lossis ntub dej.
THHN cable (Thermoplastic High Heat-resistant Nylon-coated wire) yog lwm txoj kab uas siv los ntawm cov ntaub ntawv thermoplastic, muab cov cua sov zoo, thiab yog coated nrog nylon txheej. Qhov no cable yog tsim rau siv nyob rau hauv qhuav ib puag ncig, tshwj xeeb tshaj yog nyob rau hauv uas nws yuav tsum tau tiv taus kub dua.
Txawm hais tias ob qho tib si THWN thiab THHN cables siv cov nylon txheej zoo sib xws thiab tuaj yeem siv sib hloov hauv qee yam, muaj qhov sib txawv tseem ceeb hauv lawv cov dej tsis kam thiab siv tau rau ib puag ncig.
2. Qhov sib txawv tseem ceeb ntawm THWN thiab THHN cables
Dej tsis kam
THWN cable:Ib qho ntawm cov yam ntxwv loj tshaj ntawm THWN cable yog nws cov dej tsis kam. Cov cable no tuaj yeem siv rau hauv qhov chaw ntub dej thiab tuaj yeem tiv thaiv kev nkag ntawm cov dej tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm cable. Nws cov dej tsis kam ua rau nws tsim nyog siv hauv av, hauv qhov chaw ntub dej, lossis lwm qhov chaw nrog dej sib cuag.
THHN Cable:Tsis zoo li THWN cable, THHN cable tsis yog tsim tshwj xeeb rau kev siv nyob rau hauv cov dej-resistant ib puag ncig. Nws muaj cov dej tsis zoo, yog li nws tsis haum rau siv hauv qhov chaw ntub dej lossis ntub dej. Nws tuaj yeem muab kev ua haujlwm zoo hauv qhov chaw qhuav, tab sis tej zaum yuav muaj kev pheej hmoo ntawm luv luv Circuit Court lossis kev puas tsuaj hauv cov dej ib puag ncig.
Thaum tshav kub kub kuj
THWN cable:THWN cable feem ntau muaj kev tiv thaiv kub siab dua thiab tuaj yeem ua haujlwm ntawm qhov kub siab dua. Qhov siab tshaj plaws ua haujlwm kub nws tuaj yeem tiv taus yog feem ntau 90 degree (194 degree F). Txawm hais tias nws muaj peev xwm ua kom sov tau zoo dua, nws lub hom phiaj yog txhawm rau hloov mus rau qhov chaw ntub dej, yog li qhov kub thiab txias yuav tsum xoob.
THHN kab:THHN cable muaj qhov ua haujlwm kub zoo dua thiab tuaj yeem ua haujlwm ntawm qhov kub siab dua, mus txog 90 degree (194 degree F) lossis siab dua, nyob ntawm qhov tshwj xeeb ntawm cov cable. Vim tias THHN cable feem ntau yog siv nyob rau hauv qhov chaw qhuav, nws cov cua kub tsis kam yog feem ntau siab dua THWN.
Siv tau ib puag ncig
THWN Cable:Vim nws cov dej tsis zoo, THWN cable feem ntau siv nyob rau hauv qhov chaw ntub dej lossis hauv av cable tso. Nws ua haujlwm zoo hauv kev ua dej tsis zoo, tshuaj tiv thaiv corrosion, thiab yoog raws cov dej ntub dej, yog li nws tau siv dav hauv cov tsev, cov khoom siv hluav taws xob sab nraum zoov, thiab cov khoom siv dej.
THHN Cable:THHN cable yog haum rau qhov chaw qhuav los yog qhov chaw uas yuav tsum tau muaj qhov kub thiab txias, xws li cov hluav taws xob hauv tsev, cov tsev ua haujlwm, cov chaw ua lag luam, thiab lwm yam. Nws cov cua sov ua rau nws ua tau zoo nyob rau hauv qhov kub thiab txias, tab sis nws tsis haum rau cov av noo. ib puag ncig.
Kev tiv thaiv sab nraud
THWN Cable:THWN cable muaj zog tiv thaiv sab nrauv thiab feem ntau yog nruab nrog cov nylon txheej ntxiv los muab kev tiv thaiv dej ntxiv thiab tshuaj tiv thaiv rau lub cable. Qhov no tso cai rau THWN cable los muab lub neej ua haujlwm ntev dua thaum ntsib tshuaj lom neeg lossis dej corrosion.
THHN Cable:THHN cable kuj muaj nylon txheej, tab sis nws yog tsuas yog los muab kev tiv thaiv cua sov ntxiv, tshwj xeeb tshaj yog thaum ua haujlwm hauv qhov chaw qhuav. Nws cov txheej txheem tuaj yeem tiv thaiv cov kab hluav taws xob los ntawm qhov kub thiab txias, tab sis nws txoj kev tiv thaiv tsis muaj zog.
3. Kev siv ntau yam ntawm THWN thiab THHN Cables
14 Gauge THWN Hlau:
14 Gauge THWN hlau yog ib qho me me gauge hlau uas feem ntau yog siv rau kev siv hluav taws xob tsawg lossis lub teeb hluav taws xob xa hluav taws xob, xws li cov teeb pom kev zoo, lub qhov hluav taws xob, thiab qee cov khoom siv hluav taws xob me me. Thaum siv nyob rau hauv qhov chaw ntub dej, 14 gauge THWN hlau ua tau zoo thiab tshwj xeeb tshaj yog haum rau cov tsev, cov tsev lag luam, lossis cov tshuab hluav taws xob sab nraum zoov.
THWN 14 Wire:
THWN 14 hlau kuj yog ib qho me me gauge hlau haum rau qhov chaw ntub dej. Nws feem ntau yog siv rau hauv qhov chaw xws li kev tsim hluav taws xob, kab hauv av, lossis chaw kho dej. Vim hais tias 14 gauge hlau yog nyias, nws feem ntau yog siv nyob rau hauv daim ntawv thov nrog me me tam sim no, xws li nyob rau hauv tsev thaiv thiab kev sib txuas ntawm cov khoom siv hluav taws xob lub teeb.
4. Kev txiav txim siab xaiv THWN lossis THHN cables
Thaum xaiv ntawm THWN cable thiab THHN cable, cov neeg siv yuav tsum xav txog ntau yam tseem ceeb:
Environmental tej yam kev mob:
Yog tias lub cable xav tau khiav hauv qhov ntub dej, ntub dej, lossis qhov chaw hauv av, THWN cable yog qhov kev xaiv tsim nyog dua. Kev ua haujlwm tsis zoo ntawm THWN cable tuaj yeem tiv thaiv lub zog hluav taws xob los ntawm kev ya raws.
Yog hais tias lub cable yog siv nyob rau hauv ib puag ncig qhuav thiab yuav tsum tau ntau dua kub kuj, THHN cable yog zoo tagnrho.
Qhov ntsuas kub xav tau:
Rau cov khoom siv hluav taws xob lossis cov tshuab xa tawm uas yuav tsum tau tiv taus qhov kub thiab txias, THHN cable yog qhov tsim nyog dua vim tias nws tuaj yeem tiv taus qhov kub thiab txias.
Thaum THWN cable ua haujlwm feem ntau ntawm qhov kub thiab txias, nws cov dej tsis muaj dej ua rau nws tsim nyog nyob rau hauv ib puag ncig tshwj xeeb (xws li underground cable nteg).
Tus nqi qis:
Thaum xaiv ib lub cable, tus nqi kuj yog qhov tseem ceeb. Vim tias THWN cable muab kev tiv thaiv dej tsis zoo, nws tus nqi kuj yuav siab heev. Nyob rau hauv sib piv, THHN cable tsis tshua kim nyob rau hauv qhuav ib puag ncig thiab yog haum rau cov nqi-sensitive tej yaam num.
