Corrugated copper sheath mineral insulated cable

The utility model discloses a corrugated copper sheath mineral insulated cable. Comprising a cable conductor, an insulating layer, a metal sheath layer and a low-smoke halogen-free flame-retardant polyolefin sheath layer, wherein the cable conductor is formed by twisting a first-class solid core copper conductor and a second-class solid core copper conductor; the insulating layer is formed by a phlogopite tape wrapping the cable conductor; the metal sheath layer is sleeved on the outer side of the insulating layer and the low-smoke halogen-free flame-retardant polyolefin sheath layer is extruded on the outer side of the metal sheath layer; a flame-retardant layer is arranged between the metal sheath layer and the low-smoke halogen-free flame-retardant polyolefin sheath layer, the flame-retardant layer is a low-smoke halogen-free high-flame-retardant belt wrapping the outer side of the metal sheath layer, and the winding overlapping rate of the low-smoke halogen-free high-flame-retardant belt is 20%-40%. Accor