THHN Thermoplastic High Heat-resistant Nylon-coated waya iwaya imwe conductor ine PVC insulation uye bhachi naironi.THWN thermoplastic heat- uye mvura-inodzivirira waya yakangofanana neTHHN uye maviri acho anowanzo shandiswa zvakasiyana.THWN zvakare iwaya imwe chete conductor ine PVC insulation uye jekete renaironi.THWN-2 waya inongova THWN waya ine yakawedzera kudzivirira kupisa uye inogona kushandiswa mukupisa kwakanyanya (kusvika 90 ° C kana 194 ° F).