The invention discloses a ground wire device and a laying method. The ground wire device is composed of a wire, a sleeve, sealing rings, a
moisture-proof packing material and a grounding terminal, wherein the number of the sealing rings is at least three, the middle of the sealing ring is provided with a threading hole, the sealing rings are uniformly distributed in the sleeve from one end of the sleeve, two sealing rings in the sleeve are provided with the
moisture-proof material therebetween, the wire penetrates through the threading hole and is fixed in the sleeve, the lower end of the wire is welded with the grounding terminal, the grounding terminal is in the shape of a cone, the vertex of the cone faces downward, and the area of the cone base is at least three times of the cross sectional area of the wire. The laying method comprises the steps of measuring a wiring environment, carrying out
preservative treatment, constructing a ground wire pit, assembling the ground wire device, installing the ground wire device, detecting wire connection, and the like. Compared with a traditional ground wire device, the ground wire device disclosed by the invention has the characteristics that that the structure is simple, the layer is standard, the conductive performance between the grounding device and the ground is good, and the
corrosion resistance is strong, thereby greatly improving the grounding reliability of
electrical equipment, and laying a good foundation for safe
electricity utilization.