Abstract: An electric cable (1) for transporting very high current at low voltage, in particular a welding cable for use in robot welders, comprises at least one multi-strand conductor (2) and an outer sheath (4), cooling water circulates inside the cable, and the water gains access to the conductor strands to be cooled by virtue of the conductor being covered by a perforated envelope (3).

Abstract: An electric cable (1) for transporting very high current at low voltage, in particular a welding cable for use in robot welders, comprises at least one multi-strand conductor (2) and an outer sheath (4), cooling water circulates inside the cable, and the water grains access to the conductor strands to be cooled by virtue of the conductor being covered by a perforated envelope (3).

Abstract: A liquid-cooled electric cable for transporting very high currents at low voltages, the cable comprising a non-sealed tube (1) or other preformed duct surrounding an axial liquid flow cavity, a conductive core (3) surrounding the tube, a separation envelope (4) made of a non-conductive material, an outer conductive layer (8) which is coaxial with the conductive core, and an outer sealed sheath (13). The separation envelope is in contact with the conductive core and the outer conductive layer, and wherein it has openings suitable for allowing cooling liquid to flow between the core and the outer conductive layer.