A method of forming a hose includes: extruding a web of plastics material from a first extruder； helically winding the extruded web about a mandrel or at least one rotating rod to form a wall of the hose； feeding an electrical wire into a second extruder； extruding a bead of plastics material around the electrical wire from the second extruder such that the extruded bead includes the electrical wire at a location within a cross-section of the extruded bead； cooling the extruded bead to cool the plastics material adjacent the location to prevent migration of the electrical wire away from the location； re-heating the extruded bead to cause outer surface portions of the plastics material of the extruded bead to become molten； and helically winding the extruded bead onto and about an external surface of the wall to provide the wall a support helix that incorporates the electrical wire.
