Special tool used for live replacement of 110kV-2200kV tension insulator string

The utility model provides a special tool used for the live replacement of a 110kV-2200kV tension insulator string. The special tool comprises two parallel insulating support bottle racks. Two insulating support bottle racks are connected through fixation rings. Aluminum alloy fixtures are arranged on the insulating support bottle racks. Two aluminum alloy fixtures are arranged. One aluminum alloy fixture is connected with the top ends of the insulating support bottle racks through connecting rods. The other aluminum alloy fixture is arranged on the insulating support bottle racks. Two aluminum alloy fixtures are connected with screw rods through insulating pull plates. One end of each screw rod is connected with one insulating support bottle rack, and the other end is connected with an insulating pull plate. Each insulating pull plate is connected with the other insulating support bottle rack. A rearview is arranged on the other insulating support bottle rack. According to the utility model, the special insulating tension fixtures are used to timely replace a detected failed insulator string under a charged condition; the special tool has the advantages of flexible operation, and fast and convenient use; and potential on-site safety problems are effectively reduced.