thhn hlau, thwn xaim, thwn 2 xaim yog Asmeskas tus qauv xaim nrog ob hom kev coj ua: thhn khoom xaim thiab strained xaim thhn, ob qho tib si uas nyob hauv thaj tsam ntawm UL83 ntawv pov thawj. Lawv txhua tus yog cov nylon sheathed cov xov hlau uas muaj cua sov, uas yog ib qho tseem ceeb ntawm PVC rwb thaiv tsev thiab nylon sheath. Feem ntau yog siv rau hauv cov khoom siv hluav taws xob rau cov tsev. Lawv cov qauv yooj yim thiab lub hom phiaj zoo sib xws, tab sis "W" hauv lawv cov npe sawv cev rau cov dej tsis zoo, uas cuam tshuam ncaj qha rau lawv cov yam ntxwv ua haujlwm. Nws cov cua kub tsis kam thiab roj kuj ua rau cable thhn, thwn cable, thwn 2 xaim haum rau cov khoom siv hluav taws xob, cov cuab yeej siv tshuab, thiab cov tsev. Lawv cov ntawv cim qhia cov ntsiab lus sib txawv, suav nrog cov khoom siv, cov lus qhia tshwj xeeb, thiab qib voltage. Hauv qab no peb yuav muab cov lus piav qhia ntxaws txog lawv qhov sib txawv ncaj qha.
thhn hluav taws xob xaim tsis tuaj yeem siv rau hauv qhov chaw ntub dej ntxiv lawm, nws tsuas yog siv tau rau hauv qhov chaw qhuav, thiab kev ua haujlwm kub yog 90 degrees. Thwn hlau tuaj yeem siv rau hauv qhov chaw qhuav thiab ntub dej, nrog rau kev siv kub ntawm 90 degrees Celsius hauv qhov chaw qhuav thiab 75 degrees Celsius hauv qhov chaw ntub dej. Kev ua tau zoo ntawm Thwn 2 xaim zoo dua li ob hom dhau los. Zoo li hlau hom Thwn, Thwn 2 xaim tuaj yeem siv rau hauv qhov chaw qhuav thiab ntub, nrog qhov sib txawv tsuas yog tias qhov kub thiab txias yog 90 degrees hauv ob qho tib si ib puag ncig.
Hauv cov ntsiab lus, thwn cables yog qhov tsim nyog rau kev siv nyob rau hauv cov av ntub lossis hnyav ib puag ncig vim lawv cov cua sov siab dua thiab kev ua haujlwm tsis zoo, thaum THHN cables yog qhov tsim nyog rau siv hauv qhov chaw qhuav. Hais tias yog, thwn 2 hlau tuaj yeem hloov thwn hlau lossis thhn hlau. thwn hlau tuaj yeem hloov thhn xaim, tab sis thn xaim tsis tuaj yeem hloov thwn xaim lossis thwn 2 xaim.
Cov hauv qab no yog cov ntsiab lus uas sawv cev los ntawm cov tsiaj ntawv ntawm peb tus qauv
THHN kab
T=Thermoplastic
HH=Kub Kub Resistance
N=Nylon Coated
Kev ntsuas kub: 90 ° C hauv qhov chaw qhuav
THWN kab
T=Thermoplastic
H=Kub thiab
W=Dej tsis kam
N=Nylon Coated
Kev ntsuas kub: 90 ° C hauv qhov chaw qhuav thiab 75 ° C hauv qhov chaw ntub dej
THWN -2 xov
T=Thermoplastic
H=Kub thiab
W=Dej tsis kam
N=Nylon Coated
Kev ntsuas kub: 90 ° C nyob rau hauv ob qho tib si qhuav thiab ntub
