Insulated power cable

The utility model relates to the technical field of cables, in particular to an insulated power cable, which comprises a plurality of leads and a protection assembly, and the protection assembly comprises a polyethylene oxygen barrier layer, a tensile layer, a heat insulation layer, a flame retardant layer, a lining layer, an armor layer and a protection sleeve. The polyethylene oxygen isolation layer is used for isolating oxygen and avoiding oxidation reaction of the wire, the tensile layer is used for improving tensile performance, the flame retardant layer is used for preventing combustion, the lining layer is used for installing the armor layer in a matched mode, the armor layer is used for providing metal protection, and the protective sleeve is soft in texture and can provide certain buffering capacity and improve impact resistance. The heat insulation layer isolates heat generated by high load of the internal wire, the phenomenon that the structure on the outer side of the heat insulation layer is burn