Electrical power cable having expanded polymeric layers

Abstract From the Canadian patent

A cable comprises at least two cores stranded together an expanded inner , jacket layer, a substantially circular metallic armor partially contacting the inner jacket to form unfilled interstices outside the inner jacket and a , polymeric outer jacket. The expanded inner jacket substantially takes the shape of the periphery of the stranded cores providing a non-circular cross , section for the expanded inner jacket. A method of producing a cable comprises providing at least two cores, expanding a polymeric material extruding the , expanded polymeric material around the cores and allowing the expanded , polymeric material to collapse onto the cores. A substantially circular metallic …