Load switch device with PT (potential transformer) and installation and construction method

The invention belongs to the field of hot-line work, particularly relates to a load switch device with a PT (potential transformer) and an installation and construction method, and aims to solve the problems that an insulated cable falls off due to the gravity of the insulated cable and the installation and construction risk is increased due to the fact that the insulated cable is inconvenient to fix and position in the using process of the existing load switch device with the PT. According to the technical scheme, the device comprises a base, a first sliding groove is formed in the top of the base, a sliding base is slidably installed in the first sliding groove, an installation box is fixedly installed at the top of the sliding base through welding, a containing opening is formed in the top of the installation box, and two symmetrical containing grooves are formed in the inner wall of the bottom of the installation box; according to the invention, in the use process, an insulated cable can be conveniently f