Return to Session THE USE OF INSULATED WIRES MILLIKEN CONDUCTORS IN HIGH VOLTAGE POWER TRANSMISSION UNDERGROUND AC LINES

These last years have pointed out a significant increase of the power that needs to be transported by underground power cables. As a consequence, large cross section conductors, up to 2500mm2 are now customarily used. The CIGRE group B1-03 has completed in 2005 a work that analyses the actual AC resistance of these large cross section conductors as a function of their design. The authors discuss about the implication of this work on the design of typical high power transmission lines, from the cable production, accessories, unit length, transportation, civil works, and operation. They sketch the limits of use of each conductor design as a function of the projects key parameters. They give the AC resistance measurement results on some conductors of different designs.