ASTM Standard Building Wire
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ASTM UL Thermoplastic Wire Type TW/THW THW-2 Cable
TW/THW waya yakasimba kana yakasungwa, yakapfava yakavharidzirwa yemhangura yakavharidzirwa nePolyvinylchloride (PVC).
TW waya inomirira thermoplastic, waya isingapinde mumvura.
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ASTM UL Thermoplastic High Heat Resistant Nylon Yakavharwa THHN THWN THWN-2 Waya
THHN THWN THWN-2 Waya dzakakodzera kushandiswa sechishandiso chemuchina, dunhu rekutonga, kana tambo yemagetsi.Ose ari maviri THNN neTHWN ane PVC insulation ine bhachi naironi.Iyo thermoplastic PVC insulation inoita kuti THHN neTHWN waya dzive nemoto-inodzoreredza zvivakwa, nepo jekete renaironi rinowedzerawo kuramba kumakemikari akaita sepeturu neoiri.
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ASTM UL XLPE XHHW XHHW-2 Mhangura Waya Yakakwirira Inodzivirira Kupisa Mvura
XHHW waya inomirira kuti "XLPE (cross-linked polyethylene) Yepamusoro-inodzivirira Kupisa Mvura."XHHW tambo idhizaini yechinhu chakati chekudzivirira, chiyero chetembiricha, uye mamiriro ekushandiswa (anokodzera nzvimbo dzakanyorova) yewaya yemagetsi netambo.