An assessment of material selection for high voltage DC extruded polymer cables

This contribution provides an assessment of the present major electrical insulation candidates, under development or ready for commercialization, for high-voltage DC (HVDC) extruded polymer cables in Europe, Japan and China. It is a contribution on behalf of the Dielectrics and Electrical Insulation Society (DEIS) Working Group on HVDC Cable Systems. It is noted that interest in extruded polymer HVDC cables by IEEE Electrical Insulation Magazine dates back to the Nov/Dec 1997 issue of volume 13, when crosslinked polyethylene (XLPE) was well established and competing with ethylene propylene rubber for this technology.