Flame-retardant fire-resistant electric wire and cable

The invention discloses a flame-retardant fire-resistant electric wire and cable, which comprises a cable core, a heat insulation layer, a shielding layer and a plastic sleeve which are sequentially arranged from inside to outside, wherein the cable core is composed of insulating wire cores, and each insulating wire core sequentially comprises a conductor, a fireproof layer, a foaming layer and a flame-retardant sheath from inside to outside; and the fireproof layers are made of ceramic silicone rubber. According to the flame-retardant fire-resistant electric wire and cable, the fireproof layers formed by the ceramic silicone rubber are additionally arranged in the insulating wire cores, so that the fireproof grade of exposed contact wiring parts of the conductors can be improved, cable combustion caused by high-temperature fire at a joint is avoided, and the cable meets the fire-fighting requirement. Furthermore, the flame-retardant arrangement of the heat insulation layer, the shielding layer and the plasti