Grounding device for high-tension cable branch box

A grounding device for a high-tension cable branch box comprises an electric conductor 1 and an insulated operating rod 5, wherein a hexagonal nut 2, a grounding wire terminal 3 and a spacing copper sleeve 4 are arranged on the electric conductor 1; an M12 internal thread 6 is arranged at one end of the electric conductor 1 while an external thread 7 is arranged at the other end thereof; the insulated operating rod 5 serves as a mounting instrument; and a hexagonal sleeve 8 with a built-in round gasket 9 and a spring 10 is embedded at one end of the insulated operating rod while an insulated handle 11 is arranged at the other end thereof. The utility model provides a man-made short-circuiting device suitable for being hung on both sides of the line of the high-tension cable branch box at the working point, and is proved by on-site experiments to have the advantages of economy, safety and reliability as compared with the prior technical products such as grounding cable heads of European or American cable branc