ALAN cable comprising: a sheath; an electrical wire accommodated in the sheath and comprising a conductor and an insulating body covering the conductor; and an intermediate layer having a mass reduction rate at 500 °C of less than or equal to 10% by mass and a mass reduction rate at 600 °C of less than or equal to 50% by mass, and located between the sheath and the electrical wire, wherein the insulating body comprises polyethylene having a dielectric constant of smaller than or equal to 2.5, wherein the sheath comprises a polyolefin-based polymer and a flame retardant, and wherein a content of the flame retardant in the sheath is greater than or equal to 150 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer, wherein the mass reduction rates are values that are obtained by the formula mass reduction rate % = 100 × Y − X /Y, wherein X is a mass value of the intermediate layer measured when the temperature is raised to 500 °C and 600 °C for the mass reduction rates, respectively, using a temperature rising rate of 10 °C/minute in a dry air atmosphere using a differential scanning calorimeter, and wherein Y is a mass value of the intermediate layer measured before the temperature is raised, wherein an extent of foaming of the polyethylene contained in the insulating body is greater than or equal to 15%, wherein the intermediate layer comprises polyimide, and wherein the electrical wire is arranged at a center of the LAN cable and is coated with an aluminum laminate PET tape, a copper braid, the intermediate layer, and the sheath in this order radially outward. a sheath; an electrical wire accommodated in the sheath and comprising a conductor and an insulating body covering the conductor; and an intermediate layer having a mass reduction rate at 500 °C of less than or equal to 10% by mass and a mass reduction rate at 600 °C of less than or equal to 50% by mass, and located between the sheath and the electrical wire, wherein the insulating body comprises polyethylene having a dielectric constant of smaller than or equal to 2.5, wherein the sheath comprises a polyolefin-based polymer and a flame retardant, and wherein a content of the flame retardant in the sheath is greater than or equal to 150 parts by mass with respect to 100 parts by mass of the polyolefin-based polymer, wherein the mass reduction rates are values that are obtained by the formula mass reduction rate % = 100 × Y − X /Y, wherein X is a mass value of the intermediate layer measured when the temperature is raised to 500 °C and 600 °C for the mass reduction rates, respectively, using a temperature rising rate of 10 °C/minute in a dry air atmosphere using a differential scanning calorimeter, and wherein Y is a mass value of the intermediate layer measured before the temperature is raised, wherein an extent of foaming of the polyethylene contained in the insulating body is greater than or equal to 15%, wherein the intermediate layer comprises polyimide, and wherein the electrical wire is arranged at a center of the LAN cable and is coated with an aluminum laminate PET tape, a copper braid, the intermediate layer, and the sheath in this order radially outward.