▎ 摘　　要

NOVELTY - The utility model relates to the technical field of optical cable, and claims a flame-retardant high temperature resistant 5 g optical cable, comprising an optical cable main body, the optical cable main body comprises a optical cable core layer, a protective layer, a filling layer and a performance layer, the filling layer is set between the protective layer and the performance layer, the outer wall of the optical cable core layer and the inner wall of the performance layer are set, the protective layer comprises a flame retardant layer, an anti-stretch layer and a high temperature resistant layer, by setting the insulating shielding layer, a heat insulating layer and a reinforcing layer, the insulating shielding layer is made of a graphene and polyolefin composite material, it has good insulating shielding performance, so as to reduce the volume resistivity, improving the homogenizing electric field, avoiding electric shock caused by electric leakage; the heat insulation layer is made of a polystyrene material, with heat insulation effect, to increase the performance of high temperature resistance, the reinforcing layer is made of a glass material fiber which has the strength of the reinforcing optical cable, the optical cable has insulating shielding, heat insulation, and the effect of strength performance is enhanced.