Incazelo ye-THW THHN kanye ne-THWN Wire

I-THHN, i-THWN kanye ne-THW zonke izinhlobo zezintambo zikagesi ezisebenzisa ugesi ezisetshenziswa emakhaya nasezindlini ukuletha ugesi. Ngaphambilini, i-THWN THWN yayiyizintambo ezahlukene ezinezimvume nezinhlelo zokusebenza ezahlukene. Kodwa manje, nansi intambo ejwayelekile ye-THHN-2 ehlanganisa zonke izimvume zazo zonke izinhlobo ze-THHN, THWN kanye ne-THW.

1. Iyini i-THW Wire?
Intambo ye-Thw imele intambo ye-thermoplastic, engangenisi ukushisa namanzi. Yenziwe ngomshini wethusi kanye nokufakwa kwe-PVC. Isetshenziselwa izifunda zamandla nokukhanyisa ezindaweni zezimboni, zezentengiselwano kanye nezindawo zokuhlala. Lolu hlobo lwentambo lungasetshenziswa ezindaweni ezomile nezimanzi, izinga lokushisa eliphezulu lokusebenza kwalo lingu-75 ºC kanye ne-voltage yayo yesevisi kuzo zonke izinhlelo zokusebenza ingu-600 V.

Futhi, isifinyezo se-THW asinawo u-“N” we-nylon-coated. I-nylon coating ibukeka njengengcezu encane yepulasitiki futhi ivikela izintambo ngezindlela ezifanayo. Ngaphandle kwe-nylon coating, intengo ye-THW wire ishibhile kodwa inikeza isivikelo esincane ezinkingeni ezahlukahlukene zemvelo.

I-THW Wire Strandard
• I-ASTM B-3: Izintambo Ezihlanganisiwe Zethusi noma Ezithambile.
• I-ASTM B-8: Ama-Conductor Ane-Copper Stranded Anezingqimba Eziyi-Concentric, Aqinile, Aqinile Kancane Noma Athambile.
• UL – 83: Izintambo Nezintambo Ezifakwe Ukushisa Ngezinto Ezisetshenziswa Nge-Thermoplastic.
• I-NEMA WC-5: Izintambo Nezintambo Ezifakwe I-insulation Nge-Thermoplastic Material (ICEA S-61-402) Yokudlulisa Nokusatshalaliswa Kwamandla Kagesi.

2. Iyini i-THWN THHN Wire?
I-THWN kanye ne-THHN zonke zingeza u-“N” ngesifinyezo, lokho kusho ukuthi zonke ziyintambo embozwe nge-nylon. Intambo ye-THWN ifana ne-THHN. Intambo ye-THWN ayingeni manzi, ifaka u-“W” esifinyezweni. I-THWN ingcono kune-THHN ekusebenzeni okungangeni manzi. I-THHN noma i-THWN zonke zingasetshenziswa kumasekethe kagesi nokukhanyisa ezindaweni zezimboni, zezentengiselwano kanye nezindawo zokuhlala, zifanelekela ngokukhethekile ukufakwa okukhethekile ngemigudu enzima futhi zisetshenziswe ezindaweni ezihlukumezayo noma zingcoliswe ngamafutha, amafutha, uphethiloli, njll. kanye nezinye izinto zamakhemikhali ezibolayo njengopende, izinyibilikisi, njll., Lolu hlobo lokuphazamiseka