ASTM Standard Building Wire
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ASTM UL Thermoplastic Hlau Hom TW / THW THW-2 Cable
TW / THW hlau yog ib qho khoom lossis tso tseg, mos annealed tooj liab insulated nrog Polyvinylchloride (PVC).
TW hlau sawv cev rau cov thermoplastic, dej-resistant hlau.
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ASTM UL Thermoplastic High Heat Resistant Nylon Coated THHN THWN THWN-2 Hlau
THHN THWN THWN-2 Hlau yog tsim rau siv los ua cov cuab yeej siv tshuab, tswj Circuit Court, lossis cov khoom siv hluav taws xob.Ob leeg THNN thiab THWN muaj PVC rwb thaiv tsev nrog nylon tsho.Cov thermoplastic PVC rwb thaiv tsev ua rau THHN thiab THWN xaim muaj cov nplaim hluav taws, thaum lub tsho nylon kuj ntxiv cov tshuaj tiv thaiv xws li roj av thiab roj.
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ASTM UL XLPE XHHW XHHW-2 Copper Wire High Kub-Resistant Water-Resistant
XHHW hlau stands rau "XLPE (cross-linked polyethylene) High Heat-resistant Water-resistant."XHHW cable yog ib qho kev xaiv rau cov khoom siv rwb thaiv tsev tshwj xeeb, ntsuas qhov kub thiab txias, thiab qhov kev siv (tsim rau qhov chaw ntub dej) rau cov khoom siv hluav taws xob thiab cable.