Inphase Currents and Losses in Multiconductor Cables

Using the rigorous method for calculating the parameters of two-wire lines (twisted pairs) surrounded by a single metal shield, it is shown that inphase currents (common wave) in the lines are caused by the asymmetry of excitation and loads. The effect produced by the loads placed between the wires and the shield is considered. The proposed method allows generalization of the obtained results to the case of lossy multiconductor cables.