The invention relates to a multi-core combined
electric power cable, which comprises
oxygen-free
copper conductors, and is characterized in that each
oxygen-free
copper conductor is externally provided with an inner shielding layer, the inner shielding layer is externally provided with an inner insulating layer, the inner insulating layer is externally provided with an outer shielding layer, the outer shielding layer is externally provided with an outer insulating layer, the
oxygen-free
copper conductor, the inner shielding layer, the inner insulating layer, the outer shielding layer and the outer insulating layer form a conductive unit, the conductive units are externally provided with a filled layer, the filled layer is externally provided with a non-
woven fabric wrapping layer, the non-
woven fabric wrapping layer is externally provided with an aluminum-plastic composite belt, the aluminum-plastic composite belt is externally provided with a
polyester belt wrapping layer, the
polyester belt wrapping layer is externally provided with a steel-tape armoring layer, the steel-tape armoring layer is externally provided with an outer sheath layer, and the
diameter of each conductive element occupies 1 / 4 of the
diameter of the cable body. The multi-core combined
electric power cable is good in conductive performance, high in overall strength, capable of working continuously for a long time, safe, reliable, and long in service life.