Electrical power cable with frangible insulation shield

Abstract

An electrical power cable has an insulation shield with at least one path of weakness along a length of the cable to facilitate stripping. When the path of weakness is a score or groove, a thickness of the insulation shield—between a bottom of the at least one groove and the outer surface of the underlying insulation layer is about 1-15 mils. Preferably, blades arranged around the circumference cable following extrusion of the insulation shield cut the at least one groove continuously into the shield along the cable's length. The at least one groove, or other means for imparting weakness, enables an installer to easily strip the insulation shield in the field with minimal use of specialized tools.

Dependencies are inferred from the claim text.