Multi-core-layer inorganic mineral insulation flexible fireproof cable and preparation method thereof

The invention discloses a multi-core-layer inorganic mineral insulation flexible fireproof cable and a preparation method thereof, belonging to the technical field of power cables. The multi-core-layer inorganic mineral insulation flexible fireproof cable comprises cable cores, inorganic mineral insulation layers, filling layers, inorganic mineral wrapping tapes, a metal tube composite layer, an oxygen barrier layer and a flame-retardant outer sheath, wherein each cable core is formed by twisting a plurality of groups of conductive cores, the outer side of each cable core is coated with the inorganic mineral wrapping tape, and the filling layers are arranged between the cable cores coated with the inorganic mineral insulating layers and the inorganic mineral wrapping tapes. The cable has good flexibility and flame retardance, and is excellent in mechanical shock resistance and waterproof performance under the condition of fire. 本发明公开了一种多芯层无机矿物绝缘柔性防火电缆及其制备方法，涉及电力电缆技术领域，包括电缆包括缆芯、无机矿物绝缘层、填充层、无机矿物包带、金属管复合层、隔氧层和阻燃