High-temperature-resistant radiation-resistant radio frequency coaxial cable

The utility model discloses a high-temperature-resistant radiation-resistant radio frequency coaxial cable, which belongs to the technical field of coaxial cables and comprises a lead I. The outer side of the lead I is sequentially sleeved with an insulating layer II, a lead II, a metal shielding layer and an outer sheath. The outer sheath comprises a flame-retardant fiber layer which sleeves the metal shielding layer and an outer sheath which sleeves the flame-retardant fiber layer and is made of a soft rubber material, soft rubber strips which are arranged along the length direction of the cable are arranged between the flame-retardant fiber layer and the outer sheath at equal intervals, and each soft rubber strip is filled with a powdery flame-retardant material. When an external fire occurs and the outer protective layer and the soft rubber strip are ignited, the powdery flame-retardant material filled in the inner side of the soft rubber strip is exposed, the influence of the fire behavior on the inner s