Bare, soft, stranded copper cable per ASTM specifications with paper wall insulation of various thicknesses.
Utility Distribution Transformers
Utility Power Transformers
The insulation is thermally upgraded, 2 way stretch crepe paper or DuPont® Nomex® 411 crepe insulation.
Cable is also available with open cotton braid over the insulation.
Construction is multiple layers, helically wrapped, with the last tape glued in place. The outer layer has the the size and wall build printed on the cable.