▎ 摘　　要

NOVELTY - The utility model claims an isolation type steel-cored aluminium stranded wire cable, the purpose of the utility model is realized like this, comprising a steel core and a regular polygonal bracket; the outer surface of the steel core is provided with a pearl cotton layer; the space between the pearl cotton layer and the regular polygonal bracket is provided with a plurality of wire cores; the wire core from inside to outside in turn comprises an aluminium stranded wire a shielding layer and an inner insulating layer; the outer side of the regular polygonal bracket is provided with an outer insulating layer; the space between the outer insulating layer and the regular polygonal bracket is filled with waterproof yarn; the outer side of the outer insulating layer is orderly provided with a fireproof layer; the reinforcing layer, the inner sheath, the buffer decompressing layer, an anti-corrosion layer and a low-smoke halogen-free polyolefin outer sheath; the buffer pressure-reducing layer is uniformly distributed with multiple elastic rubber tubes along the circumference; the outer surface of the low-smoke halogen-free polyolefin outer sheath is coated with a graphene coating. The utility model has good protection performance, durable, safe and environment-friendly, has obvious economic value and social value.