Patent attributes
A cable and method of forming the cable are presented. The cable contains twisted wire pairs disposed in a cavity defined by a jacket. Each wire has a conductor and an insulator surrounding the conductor. The cable may also contain a spline that separates the twisted wire pairs. At least one of the insulators or the jacket is helically corrugated such that ridges extend radially inward or outward. The ridges of the insulators may be the same or different. The cable is extruded from an extruder. The jacket may contain corrugations after being extruded by the extruder. The cable may be passed through dies to form a helically corrugated jacket. The jacket heated by a heater prior to being passed through the dies, or may pass through the dies while still hot from the extruder.