The outdoor overhead line generally adopts the form of bare conductor, but in some occasions and use environment, it is necessary to carry out insulation protection for the overhead bare conductor, so as to realize power safety and prevent short circuit accidents between parallel bare conductors. The existing buckle insulating sleeve is provided with a cavity which can accommodate bare conductor, which can be very convenient for the suit protection of various overhead bare conductors, However, due to the fact that the existing snap on insulating sleeve is sheathed on the bare conductor, the distance between the bare conductor and the opening of the sleeve body is short, and due to the impact of the environment, the opening of the sleeve body is easy to accumulate some dust or other pollutants, which leads to the creepage phenomenon of the bare conductor or the accident caused by insulation breakdown.

     The cable insulation protection sleeve adopts insulating and high temperature resistant isolation belt on the inner arc surface of the first arc section on one side of the casing body. The isolation belt separates the high voltage bare wire from the connection block of the first arc section and the second arc section, and the first arc section and the isolation belt encircle the bare wire, thus achieving the effect of lengthening the creepage distance. In addition, the insulation belt can be used to separate the high-voltage bare wire from the connection block of the first arc section and the second arc section. In addition, the insulation belt can be used to, Because of the high temperature resistant strap fixed with bare wire on the isolation belt, it can keep the condition of separating the high-pressure bare wire and connecting block under the circumstance that both the bare wire and the casing are shaking due to the strong wind.

       The cable insulation protective sleeve has wear-resistant layer on the inner wall surface of the casing body, which makes the cable insulation protection sleeve enhance the effect of resistance to friction of bare wire.

      The cable insulation protection sleeve has multiple clamps on the casing body, which makes the casing body not expand, deform or collapse under the joint baking of the high-pressure bare wire inside the pipe and the high temperature outside the pipe.