Long-service life grounding net of high-voltage cable

The utility model discloses a long-service life grounding net of a high-voltage cable. A net rack is provided with a conductive outgoing line and a conductive earth electrode; the net rack is connected by a ring-shaped edge frame and a grid-shaped middle frame; the ring-shaped edge frame is surrounded and connected by a copper strip; the interrupted head of the ring-shaped edge frame is inserted into a pipe joint and is fixed in a welding way; the grid-shaped middle frame is crosswise connected by a copper strip; the interrupted head of the intersection of the copper strip is inserted into the pipe joint and is fixed in a welding way; and the grid-shaped middle frame and the ring-shaped edge frame are inserted with each other by the pipe joint and are fixed in a welding way. The cross section of the copper strip is circular or quadrate. The long-service life grounding net of the high-voltage cable is made from the copper strip, thereby leading the service life to reach 30-60 years, completely meeting the requ