High-voltage transmission line maintenance device and line fault response system

The utility model provides a high-voltage transmission line maintenance device and a line fault response system, and belongs to the technical field of power transmission and transformation maintenance. The high-voltage transmission line maintenance device comprises an equipment box, a free arm and a wheel clamping piece, high-voltage line detection equipment is arranged in the equipment box, the free arm and the wheel clamping piece are arranged on the two sides of the equipment box respectively, the wheel clamping piece rolls on a telegraph pole in a clamped mode, a driving piece is arranged on the wheel clamping piece, and the driving piece drives the free arm to rotate. And a clamping piece is movably arranged on the free arm. In the application, the wheel clamping piece can clamp a telegraph pole, and the whole device is driven by the driving piece to climb upwards, so that manual installation can be carried out on the ground, the danger and trouble of high-altitude operation are avoided, the clamping pie