Clamp for heating treatment at connecting point of high voltage device

The utility model relates to an overhauling device at a connecting point of an electrical device, in particular to a clamp for heating treatment at the connecting point of a high voltage device. The clamp is characterized in that a clamping plate which can move up and down is arranged in an upper plate and a lower plate of a clamp body with a 'C'-shaped section, and the clamping plate is parallel to the upper plate and the lower plate which are parallel; the lower part of the clamping plate can be rotatably connected with a bolt which penetrates through a bolt hole on the lower plate of the clamp body; and the lower end of the bolt is provided with a device which is used for rotating the bolt. When an aluminium bar which is connected with the high voltage device radiates seriously due to looseness, the clamp of the technical scheme can be adopted to clamp the connecting point of the aluminium bar tightly and temporarily so as to guarantee the safe running of a worker, a power grid and a device. An experiment