Ucingo lokwakha oluqhelekileyo lwe-ASTM
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Intambo ye-ASTM UL Thermoplastic Wire Type TW/THW THW-2
Ucingo lwe-TW/THW luyi-conductor yobhedu eqinileyo okanye exineneyo, ethambileyo egqunywe ngePolyvinylchloride (PVC).
I-TW wire imele i-thermoplastic, i-waya engangeni manzi.
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I-ASTM UL Thermoplastic High Resistant Heat Nylon Coated THHN THWN THWN-2 Wire
Iingcingo ze-THHN THWN THWN-2 zifanelekile ukusetyenziswa njengesixhobo somatshini, isekethe yokulawula, okanye iingcingo zezixhobo. Zombini i-THNN kunye ne-THWN zine-PVC insulation enejakethi ze-nylon. I-thermoplastic PVC insulation yenza i-THHN kunye ne-THWN wire zibe neempawu zokuthintela umlilo, ngelixa i-nylon jacketing ikwanceda ukuxhathisa iikhemikhali ezifana nepetroli kunye neoyile.
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I-ASTM UL XLPE XHHW XHHW-2 Intambo yobhedu Engangeni manzi
Intambo ye-XHHW imele igama elithi “XLPE (i-polyethylene edityanisiweyo) Elimelana nobushushu obuphezulu Elimelana namanzi.” Intambo ye-XHHW luphawu lwezinto ezithile zokukhusela ubushushu, umlinganiselo wobushushu, kunye nemeko yokusetyenziswa (efanelekileyo kwiindawo ezimanzi) kwintambo yombane kunye nentambo.