Breakdown-prevention metal protection piece for insulator

The utility model discloses a breakdown-prevention metal protection piece for an insulator, and the metal piece consists of a cover-type housing and a wire fixing groove on the housing. The housing is made of two halves which are completely symmetrical. The upper part is connected through the bottom plate of the wire fixing groove, and is formed by the stamping of a metal plate. The application method is that the insulator is installed at first during the construction of a circuit; a flexible lining protection material is put in the cover-type housing, thereby enabling the cover-type housing to flexibly contact with the top of the insulator; the housing directly sleeves the top of the insulator; and then a wire is fixed. The metal piece provided by the utility model is simple in structure, is easy to make, is convenient to install, and is low in cost. During the installation of a power line, the top of the insulator just needs to be clamped on the metal piece, thereby greatly improving the capability of break