Kufotokozera kwa THW THHN ndi THWN Waya

THHN, THWN ndi THW ndi mitundu yonse ya waya wamagetsi woyendetsa umodzi womwe umagwiritsidwa ntchito m'nyumba ndi nyumba kuti upereke mphamvu. Kale, THWN THWN inali mawaya osiyanasiyana okhala ndi zilolezo ndi ntchito zosiyanasiyana. Koma tsopano, apa pali waya wamba wa THHN-2 womwe umaphimba zilolezo zonse za mitundu yonse ya THHN, THWN ndi THW.

1. Kodi THW Waya ndi chiyani?
Waya wa Thw umayimira waya wa thermoplastic, wosatentha komanso wosalowa madzi. Wapangidwa ndi conductor wamkuwa ndi PVC insulation. Umagwiritsidwa ntchito pamagetsi ndi magetsi m'mafakitale, mabizinesi ndi nyumba zogona. Mtundu uwu wa waya ungagwiritsidwe ntchito m'malo ouma komanso onyowa, kutentha kwake kwakukulu komwe ungagwiritsidwe ntchito ndi 75 ºC ndipo mphamvu yake yogwiritsira ntchito pa ntchito zonse ndi 600 V.

Komanso, chidule cha THW sichili ndi "N" cha nayiloni. Chophimba cha nayiloni chimawoneka ngati chidutswa cha pulasitiki ndipo chimateteza mawaya m'njira zofanana. Popanda chophimba cha nayiloni, mtengo wa waya wa THW ndi wotsika mtengo koma umapereka chitetezo chochepa ku mavuto osiyanasiyana azachilengedwe.

THW Wire Strandard
• ASTM B-3: Mawaya Ofewa Opangidwa ndi Mkuwa.
• ASTM B-8: Ma Conductor Olumikizidwa ndi Mkuwa mu Zigawo Zozungulira, Zolimba, Zolimba pang'ono kapena Zofewa.
• UL – 83: Mawaya ndi Zingwe Zotetezedwa ndi Zinthu Zotentha.
• NEMA WC-5: Mawaya ndi Zingwe Zotetezedwa ndi Zinthu Zotentha (ICEA S-61-402) Zotumizira ndi Kugawa Mphamvu Yamagetsi.

2. Kodi waya wa THWN THHN ndi chiyani?
THWN ndi THHN zonse zikuwonjezera "N" mu chidule, zomwe zikutanthauza kuti zonse ndi waya wokutidwa ndi nayiloni. Waya wa THWN ndi wofanana ndi THHN. Waya wa THWN sugwira madzi, ndikuwonjezera "W" mu chidule. THWN ndi yabwino kuposa THHN pakugwira ntchito kosagwira madzi. THHN kapena THWN zonse zitha kugwiritsidwa ntchito pamagetsi ndi magetsi m'mafakitale, mabizinesi ndi nyumba, ndizoyenera kwambiri kukhazikitsa zapadera kudzera m'mapayipi ovuta komanso kugwiritsidwa ntchito m'malo ouma kapena oipitsidwa ndi mafuta, mafuta, mafuta, ndi zina zotero ndi mankhwala ena owononga monga utoto, zosungunulira, ndi zina zotero. Mtundu uwu wa con