Waya Womangira wa ASTM Standard
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Chingwe cha ASTM UL Thermoplastic Waya Mtundu wa TW/THW THW-2
Waya wa TW/THW ndi wofewa, wolimba kapena wosasunthika, wopangidwa ndi mkuwa wotetezedwa ndi Polyvinylchloride (PVC).
Waya wa TW umayimira waya wopangidwa ndi thermoplastic, wosalowa madzi.
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Waya wa ASTM UL Thermoplastic Wosatentha Kwambiri Wosagwira Nayiloni Wokutidwa ndi THHN THWN THWN-2
Mawaya a THHN THWN-2 ndi oyenera kugwiritsidwa ntchito ngati zida zamakina, mawaya owongolera, kapena mawaya a zida. Mawaya onse a THNN ndi THWN ali ndi zotetezera kutentha za PVC zokhala ndi majekete a nayiloni. Zotetezera kutentha za PVC zomwe zimapangidwa ndi thermoplastic zimapangitsa kuti waya wa THHN ndi THWN ukhale ndi mphamvu zoletsa moto, pomwe majekete a nayiloni amathandizanso kukana mankhwala monga mafuta ndi mafuta.
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Waya Wamkuwa wa ASTM UL XLPE XHHW XHHW-2 Wopanda Kutentha Kwambiri Wopanda Madzi
Waya wa XHHW umayimira “XLPE (cross-linked polyethylene) Wosagwira Kutentha Kwambiri Wosagwira Madzi.” Chingwe cha XHHW ndi dzina la chinthu china chotetezera kutentha, kutentha, ndi momwe chingagwiritsidwe ntchito (choyenera malo onyowa) pa waya wamagetsi ndi chingwe.