Medium-voltage fire-resistant cable

The utility model discloses a medium-voltage fire-resistant cable which comprises a plurality of insulating wire cores, each insulating wire core comprises a conductor, and a conductor shielding layer, an insulating layer, an insulating shielding layer and a metal shielding layer which are coated outside the conductor and are sequentially arranged from inside to outside, and the plurality of insulating wire cores are mutually twisted to form a cable core; a wrapping tape layer, an oxygen barrier layer, a steel tape armoring layer and an outer sheath which are sequentially arranged from inside to outside are coated outside the cable core, and fillers are arranged in gaps among the plurality of insulating wire cores and gaps between the cable core and the wrapping tape layer; wherein a fire-resistant structure is arranged between the steel tape armoring layer and the outer sheath, and the fire-resistant structure comprises a ceramic silicone rubber layer, a glass fiber tape fireproof layer and a high-flame-reta