▎ 摘　　要

NOVELTY - The utility model relates to the technical field of circuit protection, specifically to a special grounding downlead for circuit anti-ground potential counterattack. the downlead comprises a waterproof insulating shell; the inner wall of the shell is fixedly connected with with a rectifying diode; the right side part of the shell is provided with a downlead section extending to the shell; the rectifying diode and the downlead section are connected by a connecting wire; the outside of the connecting wire is fixedly connected with three drain electrodes; the drain electrode comprises a carbon fibre net layer; the outer ring of the carbon fibre net layer is uniformly distributed with anti-corrosion copper wire; the inner ring is wrapped with a graphene fibre bundle; the left side of the drain electrode is connected with a tower rod grounding net; the right side of the down-lead section is connected with a tower rod down-lead; the left side wall of the shell; the upper side wall and the lower side wall are provided with three diffusion pole holes; the outer part of the drainage pole is movably connected with the inner side of the diffusion pole hole; the connection lead is connected with the downlead section in series by welding; the connection lead and the drainage pole are connected in parallel by the bolt. The downlead solves the problem of tripping caused by ground potential counterattack.