▎ 摘　　要

NOVELTY - The utility model graphene a composite high semi-conductive inner and outer shielding anti-impact medium voltage power cable, comprising a conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a semi-conductive buffer layer, a metal shielding layer, a wrapping heat insulating layer and an anti-impact outer protective layer; wherein the semi-conductive buffer layer comprises a semi-conductive nylon belt and a knitted cotton, the semi-conductive nylon belt and the knitted cotton are compounded to form a semi-conductive buffer layer; the material of the anti-impact outer protective layer is foaming polyolefin, because the knitted cotton structure is fluffy, so the semi-conductive buffer layer can effectively reduce the impact of the metal shielding structure or sheath in the semi-conductive buffer layer, Compared with the common polyolefin sheath, the foaming polyolefin has better toughness and anti-cracking performance compared with the common polyolefin sheath; the anti-collision performance is better than the metal armouring structure, so it can improve the impact resistance of the cable, the utility model model is used in the field of power cable.