THW THHN kunye neTHWN ingcaciso yocingo

I-THHN, i-THWN kunye ne-THW zizo zonke iintlobo zentambo yombane ye-conductor enye esetyenziswa kumakhaya nakwizakhiwo ukuhambisa amandla. Ngaphambili, i-THW THHN THWN yayiyiingcingo ezahlukeneyo ezinemvume ezahlukeneyo kunye nezicelo. Kodwa ngoku, nantsi intambo eqhelekileyo ye-THHN-2 egquma zonke iimvumelwano zazo zonke iintlobo ze-THHN, THWN kunye neTHW.

1. Yintoni ucingo lweTHW?
I-Thw wire imele i-thermoplastic, i-thermoplastic, kunye nocingo olukwazi ukumelana nobushushu. Yenziwe nge-copper conductor kunye ne-PVC insulation. Isetyenziselwa umbane kunye neesekethe zokukhanyisa kwiindawo zoshishino, zorhwebo kunye neendawo zokuhlala. Olu hlobo locingo lunokusetyenziswa kwiindawo ezomileyo nezimanzi, ubushushu balo obuphezulu bokusebenza yi-75 ºC kunye ne-voltage yayo yenkonzo kuzo zonke izicelo yi-600 V.

Kwakhona, i-akhronimi THW iphosa u-“N” wenayiloni eqatywe inayiloni. Ukwaleka kwenayiloni kukhangeleka ngathi yintwana yeplastiki kwaye ikhusela iingcingo ngendlela efanayo. Ngaphandle kokwalekwa kwenayiloni, ixabiso locingo lwe-THW linexabiso eliphantsi kodwa libonelela ngokhuseleko oluncinci kwiingxaki ezahlukeneyo zokusingqongileyo.

THW Wire Strandard
• I-ASTM B-3: IiNcingo zoKhopolo eziAneliweyo okanye eziSoft.
• I-ASTM B-8: Ii-Copper Stranded Conductors kwi-Concentric Layers, Hard, Semi-hard okanye Soft.
• UL – 83: Iingcingo kunye neeCables ezifakwe kwi-Thermoplastic Material.
• I-NEMA WC-5: Iingcingo kunye neeCables ezifakwe kwi-Thermoplastic Material (ICEA S-61-402) zoThutho kunye noSasazo lwaMandla oMbane.

2. Yintoni ucingo lweTHWN THHN?
I-THWN kunye ne-THHN zonke zongeza u-“N” kwi-acronymare, oko kuthetha ukuba zonke zilucingo oluqatywe inayiloni. Ucingo lweTHWN luyafana neTHHN. Ucingo lwe-THWN alunamanzi, yongeza i-"W" kwisishunqulelo. I-THWN ingcono kune-THHN ekusebenzeni kwamanzi. I-THHN okanye i-THWN zonke zingasetyenziselwa umbane kunye neesekethe zokukhanyisa kwimizi-mveliso, izibonelelo zorhwebo kunye neendawo zokuhlala, zilungele ngokukodwa ukufakelwa okukhethekileyo ngokusebenzisa imibhobho enzima kwaye isetyenziswe kwiindawo ezinobungozi okanye ingcolise ioli, igrisi, i-petroli, njl.