▎ 摘　　要

NOVELTY - The utility model claims a high-length ultra-high voltage power cable with low loss and high energy efficiency, comprising a copper conductor, the stranded copper conductor is sequentially covered with a semi-conductive belt layer, a conductor shielding layer, an insulating layer, the insulating shielding layer forms a wire core, the online core is overlapped and wrapped with a semi-conductive buffer layer, the semi-conductive buffer layer is overlapped and wrapped with a reinforced buffer layer, the outer surface of the reinforced buffer layer is coated with a smooth aluminium sheath and then coated with epoxy coal asphalt anti-corrosive paint layer on the outer surface of the smooth aluminium sheath; extruding the thermoplastic polyurethane elastomer inner lining layer outside the epoxy coal asphalt anti-corrosion coating layer, overlapping and wrapping the first reinforcing winding layer outside the thermoplastic polyurethane elastomer inner lining layer, weaving the carbon fibre weaving reinforcing layer outside the first reinforcing winding layer, overlapping and wrapping the second reinforcing winding layer outside the carbon fibre knitting reinforcing layer, and extruding a polyethylene outer sheath outside the second reinforcing lapping layer. The cable has simple structure, easy processing, low loss, high energy efficiency, can increase the single delivery length, stable structure, long service life.