▎ 摘　　要

NOVELTY - The utility model claims a cross-linked polyethylene insulating steel belt armoured polyvinyl chloride jacket fire resisting cable, relating to the cable field, aiming at the problem of low strength and fire-resistant cable fireproof problem heat dissipation effect is bad, proposes the following solution, which comprises multiple insulating cable cores; the insulating cable core comprises a copper conductor, the copper conductor is orderly wrapped with insulation layer and the shielding layer, the outer filling of insulating cable core has flame-retardant filler, external flame retardant filler is provided with an elastic rubber layer, an elastic rubber layer of the outer wall surface is provided with a semi-cylindrical elastic block plurality of convex. between the elastic rubber layer and the elastic block is provided with steel bar, the outer side of the elastic rubber layer is set with graphene heat conducting layer, external weaving of graphene heat conducting layer with a steel belt armoured layer, armour layer of steel with external packet non-halogen low tobacco band layer, a halogen-free cigarette with low layer is externally extruded with polyvinyl chloride jacket. The utility model effectively improves the fire resistance of the cable, the cable has high strength, good radiating performance and strong practicability.