Power electrical grounding resistance testing device

The utility model discloses a power electrical grounding resistance testing device comprising a pedestal, a testing device body and a protection mechanism, the testing device body comprises a box body, the box body is fixedly connected with the pedestal, one end in the pedestal is provided with a pull rod, one end in the pull rod is provided with a steel ball, and the other end in the pull rod isprovided with a steel ball. The pull rod is fixedly connected with the base through steel balls, a spring B is fixedly connected to one side of each steel ball, the springs B are fixedly connected with the pull rod, Xuan blocks are rotatably connected to the two ends of the lower surface of the base, rolling wheels are fixedly connected to the lower surfaces of the Xuan blocks, a fixing rod is arranged on the inner side of each Xuan block, and a spring A is fixedly connected to one end of each fixing rod. The spring A is fixedly connected with the base; by designing the base installed on one side of the box body, the