Grounding wire lead

A grounding wire lead includes, from inside out, an inner metal conducting layer, a middle lead protection layer and an outer insulation layer. The middle lead protection layer is composed of an insulating spiral spring. The inner wall of the outer insulation layer is provided with an anti-flaming layer. The metal conducting layer is composed of a plurality of aluminum-clad copper metal wires. Theinvention has beneficial effects that silicone rubber has flexibility and is ozone resistant, corona resistant, flame resistance and is good in insulation performance and high and low temperature resistance, and is a safe and reliable material for wire cable production; the insulating spiral spring protects the metal conducting layer and improves the tensile performance of the cable; the clad aluminum metal wire keeps good specific resistance, electric energy conductivity and mechanical performance, moreover, since the specific gravity of the conductor is around 35% of that of pure copper conductor and the unit weigh