Patent ID: 8669489

Claim:
A welding cable system, comprising: a welding power cable, comprising: a first segment comprising a first conduit having a first outer diameter and being disposed circumferentially around a first conductive core; a second segment comprising a second conduit having a smaller outer diameter than the first outer diameter of the first conduit and being disposed circumferentially around a second conductive core having a smaller diameter than the first conductive core, wherein the first and second conduits are coaxial with each other and the first and second conductive cores, electrical power flows between the first and second conductive cores, and cooling fluid flows between the first and second conduits to cool the first and second conductive cores; and a coupler configured to couple the first segment and the second segment, wherein the coupler comprises a first end having a first inner diameter larger than the diameter of the first conductive core and a second end having a second inner diameter smaller than the first inner diameter and larger than the diameter of the second conductive core.