Crosslinked polyethylene insulated halogen-free low-smoke flame-retardant B1-level power cable

The invention relates to a crosslinked polyethylene insulated halogen-free low-smoke flame-retardant B1-level power cable, and belongs to the technical field of cable preparation. The cable comprises a copper conductor, the outer surface of the copper conductor is coated with a fire-resistant layer, the outer surface of the fire-resistant layer is coated with an insulating layer, the copper conductor, the fire-resistant layer and the insulating layer form a cable core, three cable cores form a group, the outer layer of the group of cable cores is coated with an inner lining layer, a halogen-free low-smoke flame-retardant polypropylene rope is filled between the lining layer and the cable core, the outer surface of the lining layer is coated with an inner sheath, the outer surface of the inner sheath is provided with an armor layer, the outer surface of the armor layer is provided with an outer sheath, and the inner sheath and the outer sheath are made of a halogen-free low-smoke flame-retardant polyolefin mat