▎ 摘　　要

NOVELTY - The method involves providing a photovoltaic cable with a cable core, an insulating layer and an outer sheath layer. The outer sheath layer is coated with raw materials according to parts by weight. Ethylene propylene diene rubber, low density polyethylene resin, modified graphene oxide, accelerant according to mass ratio, reinforcing agent and dicumyl peroxide weighing process is performed. Rotating speed of a screw is about 60r/min. Outer sheath layer forming, cooling and rolling processes are performed to obtain the photovoltaic cable. USE - Method for manufacturing a halogen-free low-smoke flame-retardant photovoltaic cable use in a solar system. ADVANTAGE - The method provides a halogen-free low-smoke flame-retardant photovoltaic cable, which can improve the applicability of the photo-voltaic cable and use safety performance. The method introduces the low density polyethylene (LDPE) and nano white carbon black particles into the continuous phase electrodeposition polymer matrix (EPDM) by melt blending method, which reduces the interfacial tension of the two phases, improves the interface bonding force to promote the mutual dispersion under the action of shearing force, and the amorphous portion of the LDPE and the interface of the EPDM have a continuous phase through with each other. It can repair the crystal defect caused by the mutual interference between the matrix and the filler when crystallizing. The breakdown strength of the sheath material.