Aluminium alloy compacted conductor medium-voltage flame retardation fireproof cable

The utility model discloses an aluminium alloy compacted conductor medium-voltage flame retardation fireproof cable comprising aluminium alloy compacted conductors; the conductor is wrapped by a shielding layer, an insulation layer, a shielding insulation layer and a metal shielding layer in sequence to form a wire core, and three wire cores are twisted to form a pair-twist cable core; the pair-twist cable core is wrapped by a taped covering1, a fireproof layer, a taped covering2 and a sheath layer in sequence; and a filling layer is arranged between the pair-twist cable core and the taped covering1. The fireproof layer is arranged outside the cable core, so flame cannot burn the conductors, and because of oxygen isolation and heat isolation effects of the fireproof layer, the heat cannot be conveyed to the cable core from outside to melt the aluminium alloy conductors, so the aluminium alloy conductors can be employed; compared with copper conductor, the aluminium alloy conductor is small in weight proportion, light in weight, cheap in price, and is rich in raw material resources; and because aluminium is a metal element with largest content in earth crust, so the aluminium alloy conductors can be employed to make fireproof cables so as to save vast copper and fund.