▎ 摘　　要

NOVELTY - The utility model claims a copper-aluminium composite core sheath flame-retardant fireproof cable, comprising a wire core, a cable core, a wrapping belt, a graphene heat conducting layer, an armoured layer, an outer shielding layer, a flame retardant layer, a waterproof layer, a heat insulating layer and an outer sheath layer, the cable core is composed of a plurality of wire cores and filler, the filler is filled between the plurality of wire cores, the wrapping belt is wound on the outer part of the plurality of wire cores, the graphene heat conducting layer is annularly arranged on the outer surface of the wrapping belt, the armoured layer is annularly arranged outside the graphene heat conducting layer. The utility model is provided with a flame retardant layer, it can use high silica fibre cloth and mica flame retardant belt for fireproof inflaming retarding work, at the same time, the inflaming retarding rubber layer is provided with a plurality of inner groove and outer groove, and the inner groove and the outer groove are filled with inflaming retarding powder, which can make the inflaming retarding and fireproof effect of the whole cable good, increasing the use safety of the cable, prolonging the service life of the cable.