THHN hlau cable thiab THWN hlau cable yog ob hom hluav taws xob thaiv siv nyob rau hauv teb chaws USA. Lawv yuav luag zoo tib yam hauv cov tsos, muaj qee qhov kev ua tau zoo sib txawv ntawm ob.
THHN hlau stands rau Thermoplastic High Heat-resistant Nylon-coated. Nws yog feem ntau siv rau qhov chaw qhuav thiab tiv taus cua sov thiab roj. Lub caij no, THWN stands rau Thermoplastic Thaum tshav kub kub thiab dej-resistant Nylon-coated. Nws yog tsim los tiv thaiv ob qho tib si cua sov thiab noo noo, ua rau nws haum rau siv nyob rau hauv ob qho tib si ntub thiab qhuav qhov chaw.
Lwm qhov sib txawv ntawm ob yog lawv qhov ntsuas hluav taws xob. THHN feem ntau yog ntsuas rau qis voltages, nyob ib ncig ntawm 600 volts, thaum THWN yog ntsuas rau siab dua voltages, mus txog 1, 000 volts.
Zuag qhia tag nrho, ob qho tib si THHN thiab THWN yog cov kev xaiv zoo tshaj plaws, tab sis lawv tau tsim los rau kev siv sib txawv. Thaum xaiv ntawm ob, nws yog ib qho tseem ceeb uas yuav tsum xav txog qhov chaw nyob qhov twg cov xaim yuav raug teeb tsa thiab qhov xav tau ntawm qhov system.
THHN / THWN nylon sheathed hlau thiab cable yog ib hom American standard hlau thiab cable uas ua raws li UL txuj UL83
