THW THHN ndi THWN Waya Kufotokozera

THHN, THWN ndi THW ndi mitundu yonse ya waya wamagetsi wa conductor umodzi womwe umagwiritsidwa ntchito m'nyumba ndi nyumba kuti apereke mphamvu. M'mbuyomu, THW THHN THWN inali mawaya osiyanasiyana okhala ndi zivomerezo ndi ntchito zosiyanasiyana. Koma Tsopano, apa pali waya wamba wa THHN-2 womwe umakhudza kuvomereza kwamitundu yonse ya THHN, THWN ndi THW.

1. Kodi THW Wire ndi chiyani?
Thw wire imayimira thermoplastic, waya wosamva kutentha ndi madzi. Amapangidwa ndi kondakitala yamkuwa ndi kutsekemera kwa PVC. Amagwiritsidwa ntchito popangira magetsi ndi magetsi m'mafakitale, malonda ndi malo okhala. Waya wamtundu uwu ukhoza kugwiritsidwa ntchito m'malo owuma komanso onyowa, kutentha kwake kwakukulu ndi 75 ºC ndipo voteji yake yogwiritsira ntchito ndi 600 V.

Komanso, mawu oti THW akusowa "N" wokutidwa ndi nayiloni. Chophimba cha nayiloni chimawoneka ngati kapulasitiki kakang'ono ndipo chimateteza mawaya mofananamo. Popanda zokutira za nayiloni, mtengo wa waya wa THW ndiwotsika mtengo koma umapereka chitetezo chochepa ku zovuta zosiyanasiyana zachilengedwe.

THW Wire Strandard
• ASTM B-3: Copper Annealed kapena Soft Waya.
• ASTM B-8: Copper Stranded Conductors mu Concentric Layers, Hard, Semi-hard kapena Soft.
• UL - 83: Mawaya ndi Zingwe Zotsekedwa ndi Thermoplastic Material.
• NEMA WC-5: Mawaya ndi Ma Cable Insulated ndi Thermoplastic Material (ICEA S-61-402) kwa Kutumiza ndi Kugawira Mphamvu Zamagetsi.

2. Kodi THWN THHN Waya ndi chiyani?
THWN ndi THHN onse akuwonjezera "N" mu acronymare, kutanthauza kuti onse ndi waya wokutidwa nayiloni. Waya wa THWN ndi wofanana ndi THHN. Waya wa THWN ndi wosamva madzi, ndikuwonjezera "W" mu acronym. THWN ndiyabwino kuposa THHN pakuchita zosagwira madzi. THHN kapena THWN zonse zitha kugwiritsidwa ntchito ngati magetsi ndi kuyatsa mabwalo m'mafakitale, malonda ndi nyumba zogona, ndizoyenera kuyikapo mwapadera kudzera munjira zovuta komanso kugwiritsidwa ntchito m'malo otsekemera kapena kuipitsidwa ndi mafuta, mafuta, mafuta, etc. ndi zina zowononga mankhwala monga utoto, zosungunulira, etc.