1 kilovolt fire-resistant cable

The invention relates to the field of fire-resistant cables, in particular to a 1 kilovolt fire-resistant cable which sequentially comprises a conductive bundle, an armor layer and an outer protective layer from inside to outside, the conductive bundle comprises a plurality of conductor wire cores and a filling layer, and each conductor wire core is sequentially wrapped with a fire-resistant layer and an insulating layer from inside to outside. A wrapping tape layer with fire insulation and prevention performance is arranged between the conductive bundle and the armor layer, an inner isolation layer used for isolating the insulating layer from the fireproof layer is arranged between the fireproof layer and the insulating layer, and the inner isolation layer comprises a layered inner base material and a plurality of inner isolation columns which are arranged at intervals and have high heat resistance. The inner isolation columns are evenly fixed to the side, facing the insulating layer, of the inner base mater