I-THW THHN kanye ne-THWN Incazelo Yocingo

I-THHN, i-THWN ne-THW zonke izinhlobo zezintambo zikagesi zekhondatha eyodwa ezisetshenziswa ezindlini nezakhiwo ukuletha amandla. Ngaphambilini, i-THW THHN THWN bekuyizintambo ezihlukile ezinemvume ehlukene nezinhlelo zokusebenza. Kodwa Manje, nansi intambo evamile ye-THHN-2 ehlanganisa konke ukugunyazwa kwakho konke okuhlukile kwe-THHN, THWN kanye ne-THW.

1. Yini i-THW Wire?
I-Thw wire imele i-thermoplastic, intambo evikela ukushisa namanzi. Yenziwe nge-copper conductor kanye ne-PVC insulation. Isetshenziselwa izifunda zamandla nezibani ezikhungweni zezimboni, ezentengiselwano kanye nezindawo zokuhlala. Lolu hlobo locingo lungasetshenziswa ezindaweni ezomile nezimanzi, izinga lokushisa eliphezulu lokusebenza kwalo ngu-75 ºC kanye ne-voltage yayo yesevisi yazo zonke izinhlelo zokusebenza yi-600 V.

Futhi , isifinyezo esithi THW sishoda ngo-“N” wenayiloni eboshwe. Indwangu enayiloni ibukeka njengocezu lwepulasitiki futhi ivikela izintambo ngendlela efanayo. Ngaphandle kokumbozwa kwenayiloni, intengo yocingo lwe-THW ishibhile kodwa inikeza ukuvikeleka okuncane ezinkingeni ezihlukahlukene zemvelo.

I-THW Wire Strandard
• I-ASTM B-3: Izintambo Ezine-Copper Annealed noma Ezithambile.
• I-ASTM B-8: Ama-Copper Stranded Conductor Kuzendlalelo Ezigxile, Eziqinile, Eziqinile Kancane noma Ezithambile.
• UL – 83: Izintambo namakhebuli Afakwe I-Thermoplastic Material.
• I-NEMA WC-5: Izintambo namakhebula Afakwe I-Thermoplastic Material (ICEA S-61-402) Yokudlulisa Nokusabalalisa Amandla Kagesi.

2. Iyini i-THWN THHN Wire?
I-THWN ne-THHN zonke zengeza u-“N” ku-acronymare, lokho kusho ukuthi zonke ziyizintambo ezinamekwe inayiloni. Intambo ye-THWN ifana ne-THHN. Intambo ye-THWN ayikwazi ukumelana namanzi, yengeza u-“W” kusifinyezo. I-THWN ingcono kune-THHN ekusebenzeni kokumelana namanzi. I-THHN noma i-THWN zonke zingasetshenziselwa amasekethe kagesi nezibani ezikhungweni zezimboni, ezentengiselwano nezindawo zokuhlala, zifaneleka ngokukhethekile ukufakwa okukhethekile ngamapayipi anzima futhi zisetshenziswe ezindaweni eziqhumayo noma zingcoliswe ngamafutha, amafutha, uphethiloli, njll. nezinye izinto zamakhemikhali ezigqwalisayo njengopende, izinyibilikisi, njll.,Lolu hlobo lwe-con