A method of forming a hose (1200 or 1600) comprising: extruding a continuous web of plastics material from a first extruder of a hose making apparatus; helically winding the extruded web about a mandrel or at least one rotating rod of the hose making apparatus to form a wall (1270 or 1670) of the hose (1200 or 1600) about a central axis of the hose (1200 or 1600); feeding a first electrical wire (1290 or 1690) into a second extruder; extruding a first continuous bead (1280 or 1680) of plastics material around the first electrical wire (1290 or 1690) from the second extruder, wherein: the first electrical wire (1290 or 1690) is positioned at a first location within a cross-section of the first extruded bead (1280 or 1680); and the cross-section of the first extruded bead (1280 or 1680) defines an exterior of the first extruded bead that comprises a first bonding surface (1286 or 1686) covering a portion of the exterior; cooling the first extruded bead (1280 or 1680) sufficiently to cool the plastics material adjacent the first location within the cross-section of the first extruded bead (1280 or 1680) to prevent migration of the first electrical wire (1290 or 1690) away from the first location; re-heating the first bonding surface (1286 or 1686) of the first extruded bead (1280 or 1680) sufficiently to cause the plastics material of the first bonding surface (1286 or 1686) to become molten; and helically winding the first extruded bead (1280 or 1680) onto and about an external surface of the wall (1270 or 1670) of the hose (1200 or 1600) formed from the helical winding of the extruded web such that the first bonding surface (1286 or 1686) is put into contact with, and then becomes bonded to, the wall (1270 or 1670) of the hose (1200 or 1600) to become a first support helix (1280 or 1680) that incorporates the first electrical wire (1290 or 1690). extruding a continuous web of plastics material from a first extruder of a hose making apparatus; helically winding the extruded web about a mandrel or at least one rotating rod of the hose making apparatus to form a wall (1270 or 1670) of the hose (1200 or 1600) about a central axis of the hose (1200 or 1600); feeding a first electrical wire (1290 or 1690) into a second extruder; extruding a first continuous bead (1280 or 1680) of plastics material around the first electrical wire (1290 or 1690) from the second extruder, wherein: the first electrical wire (1290 or 1690) is positioned at a first location within a cross-section of the first extruded bead (1280 or 1680); and the cross-section of the first extruded bead (1280 or 1680) defines an exterior of the first extruded bead that comprises a first bonding surface (1286 or 1686) covering a portion of the exterior; the first electrical wire (1290 or 1690) is positioned at a first location within a cross-section of the first extruded bead (1280 or 1680); and the cross-section of the first extruded bead (1280 or 1680) defines an exterior of the first extruded bead that comprises a first bonding surface (1286 or 1686) covering a portion of the exterior; cooling the first extruded bead (1280 or 1680) sufficiently to cool the plastics material adjacent the first location within the cross-section of the first extruded bead (1280 or 1680) to prevent migration of the first electrical wire (1290 or 1690) away from the first location; re-heating the first bonding surface (1286 or 1686) of the first extruded bead (1280 or 1680) sufficiently to cause the plastics material of the first bonding surface (1286 or 1686) to become molten; and helically winding the first extruded bead (1280 or 1680) onto and about an external surface of the wall (1270 or 1670) of the hose (1200 or 1600) formed from the helical winding of the extruded web such that the first bonding surface (1286 or 1686) is put into contact with, and then becomes bonded to, the wall (1270 or 1670) of the hose (1200 or 1600) to become a first support helix (1280 or 1680) that incorporates the first electrical wire (1290 or 1690).