Cophasal Currents and Losses in Multiple-Conductor Cables

The rigorous method of calculations of characteristics of two-wire lines (twisted pairs) inside the metal armor is generalized in case of multiple-conductor cables with losses. On the basis of offered method it is shown that the asymmetry of excitation and loads results in appearance of cophasal currents (common wave) in lines. The effect of loads connected between wires and armor is considered.