▎ 摘　　要

NOVELTY - Flame-retardant photoelectric composite cable comprises a sheath layer, winding layer and optical fiber and conductor embedded in the winding layer from outside to inside. The sheath layer is made of flame-retardant polypropylene material. The flame retardant polypropylene material includes 65-105 pt. wt. polypropylene, 15-35 pt. wt. modified graphene, 12-26 pt. wt. calcium carbonate, 0.5-2 pt. wt. coupling agent, 6-18 pt. wt. secondary flame retardant, and 3-10 pt. wt. lubricant The secondary flame retardant is phosphorus flame retardant MCA. USE - The flame-retardant photoelectric composite cable is useful for broadband access network system as transmission line, and as a new access mode, which integrates optical fiber, transmission copper wire, and can solve the problem of broadband access, device power utilization and signal transmission. ADVANTAGE - The sheath layer uses flame-retardant polypropylene material as the raw material of the sheath tube, utilizes the excellent elasticity and bending resistance of polypropylene, reduces the deformation of the photoelectric composite cable, and improves the stability of the optical signal. The sheath tube has the properties of high temperature resistance, heat dissipation and flame retardancy. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation method of flame-retardant photoelectric composite cable.