Abstract: The invention relates to a method of fabricating an electricity transport conductor, in particular for overhead power lines, that are to operate at an operating temperature greater than or equal to 200° C., and comprising at least one composite central core 1 made of continuous fibers impregnated with an epoxy resin matrix, the core being covered in at least one layer of insulating material 2, and conductor wires 3 of aluminum or aluminum alloy being wound around the core. According to the invention, said insulating material is compatible with said operating temperature and is put into place on said core 1 without subsequent heating.