A work machine, such as a hauler at a mining site, includes a conductive linkage connected to a conductor rod for receiving multiple poles of electrical power from a current collector sliding on a surface of a power rail. The conductive linkage includes trailing arms substantially parallel to each other and attached by lower joints to the current collector and by upper joints to the conductor rod. The lower joints and the upper joints have multiple axes of rotation and enable the trailing arms to move laterally and vertically with respect to the surface of the at least one power rail in response to movement of the work machine, while conducting the electrical power from the current collector to the conductor rod.