A system for supplying shore-to-ship electrical power to ships docked in ports comprising a cable - for supplying shore-to-ship electrical power to ships through several conductors comprising: - at least two first electrical phase conductors (1A1, 1A2, 1A3,...), each first electrical phase conductor (1A1, 1A2, 1A3,...) being enclosed in and electrically insulated by an insulation layer; - at least two second electrical phase conductors (1B1, 1B2, 1B3,...), each second electrical phase conductor (1B1, 1B2, 1B3,...) being enclosed in and electrically insulated by an insulation layer; - at least two third electrical phase conductors (1C1, 1C2, 1C3,...), each third electrical phase conductor (1C1, 1C2, 1C3,...) being enclosed in and electrically insulated by an insulation layer; - at least one grounding conductor (1GA1, 1G2, 1G3,...), each grounding conductor (1G1, 1G2, 1G3,...) being enclosed in and electrically insulated by an insulation layer; - an inner sheath, formed around and filling the space and gaps between the insulation layers; - an outer sheath enclosing said inner sheath; wherein the first electrical phase conductors (1A1, 1A2, 1A3,...), the second electrical phase conductors (1B1, 1B2, 1B3,...) and the third electrical phase conductors (1C1, 1C2, 1C3,...) have nearly identical cross-sections and characterized in that an antifriction tape, preferably formed from Teflon, is wrapped around each of the insulation layers of the conductors (1, 1A1, 1A2, 1A3..., 1B1, 1B2, 1B3..., 1C1, 1C2, 1C3..., 1G1, 1G2, 1G3); and that the system further comprises at least one support structure over which the cable is guided from the shore to the ship, said support structure being designed as an erected pole with a beam, over which the cable is guided to the ship, said beam being attached at least approximately to the upper end of the erected pole, such that loading and unloading the ship is not obstructed. - at least two first electrical phase conductors (1A1, 1A2, 1A3,...), each first electrical phase conductor (1A1, 1A2, 1A3,...) being enclosed in and electrically insulated by an insulation layer; - at least two second electrical phase conductors (1B1, 1B2, 1B3,...), each second electrical phase conductor (1B1, 1B2, 1B3,...) being enclosed in and electrically insulated by an insulation layer; - at least two third electrical phase conductors (1C1, 1C2, 1C3,...), each third electrical phase conductor (1C1, 1C2, 1C3,...) being enclosed in and electrically insulated by an insulation layer; - at least one grounding conductor (1GA1, 1G2, 1G3,...), each grounding conductor (1G1, 1G2, 1G3,...) being enclosed in and electrically insulated by an insulation layer; - an inner sheath, formed around and filling the space and gaps between the insulation layers; - an outer sheath enclosing said inner sheath; wherein the first electrical phase conductors (1A1, 1A2, 1A3,...), the second electrical phase conductors (1B1, 1B2, 1B3,...) and the third electrical phase conductors (1C1, 1C2, 1C3,...) have nearly identical cross-sections and characterized in that an antifriction tape, preferably formed from Teflon, is wrapped around each of the insulation layers of the conductors (1, 1A1, 1A2, 1A3..., 1B1, 1B2, 1B3..., 1C1, 1C2, 1C3..., 1G1, 1G2, 1G3); and that the system further comprises at least one support structure over which the cable is guided from the shore to the ship, said support structure being designed as an erected pole with a beam, over which the cable is guided to the ship, said beam being attached at least approximately to the upper end of the erected pole, such that loading and unloading the ship is not obstructed.