Cholumikizira cha waya ziwiri chotsekedwa bwino chomwe sichimanyowa ndi chinyezi chokhala ndi chingwe chodzaza mpweya cha 0.7-0.4 mm (21-26AWG). Chotchingira mpweya cholimba cha 1.27mm (0.050%) Choteteza kutentha kwambiri.
