Fire -resistant coaxial cable

The utility model discloses a fire -resistant coaxial cable, including the inner conductor, the inner conductor is provided with the inner insulating layer outward, the the inner insulating layer outside has set gradually shielding layer and external insulation layer, the external insulation layer is including the silica fibre band of winding on the shielding layer, the overlapping rate of silicafibre band is between 50%~60%. By adopting the above technical scheme, the overlapping rate of silica fibre band is more than 50%, has guaranteed that the outer winding at least of shielding layer hasa two -layer silica fibre band, and the ignition point of silica fibre band is more than 1500 DEG C, and the temperature of flame burning usually is between 800~1200 DEG C, and the silica fibre bandcan not be ignited by the naked light, and the silica fibre band can effectually avoid the external insulation layer to take place the burning, guarantee coaxial cable can be under the naked light environment normal transmittin