Protective earthing device

The utility model discloses a protective earthing device, including a pipe body, body upper portion sets up the end of cross sectional shape for T shape, the end upper end sets up the screw thread post, threaded connection nut on the screw thread post, the nut is used for being in the effective connection of earth conductor on the screw thread post, body inside sets up leading electrical pillar, the body with it has carbon dust polymer layer to fill between the leading electrical pillar. The utility model discloses ground resistance can be reduced moreover to not only can be firm contact with the earth soil to effectively play the effect of ground protection. 本实用新型公开了种保护接地装置，包括管体，所述管体上部设置截面形状为T形的端头，所述端头上端设置螺纹柱，所述螺纹柱上螺纹连接螺帽，所述螺帽用于将接地导线有效连接在所述螺纹柱上；所述管体内部设置主导电柱，所述管体与所述主导电柱之间填充有碳粉聚合物层。本实用新型不仅能够牢固的与大地土壤相接触，而且能够降低接地电阻，从而有效起到接地保护的效果。