Method for live-line replacement of insulator string of 500KV compact line in high altitude area

The invention discloses a method for live-line replacement of an insulator string for a 500KV compact line in a high-altitude area, and the method comprises the steps: determining a live-line work safety distance according to the model of a tower and the distribution of wires; hoisting the force bearing device, installing the force bearing device, movably connecting one end of the force bearing device to the vertical surface of the cross arm, and connecting the other end of the force bearing device with the wire; the wire is gradually lifted through the force bearing device, so that the vertical load borne by the wire is transferred to the force bearing device, and then the insulator chain is dismounted and replaced. According to the method, when the insulator of the 500kV compact power transmission line is replaced in a live mode in the high-altitude area, the operation method and safety distance items for carrying out live replacement of the insulator of the 500kV compact power transmission line in the high