Secondary wiring protection device for three-phase electric energy meter

The invention relates to the technical field of three-phase electric energy meters, in particular to a three-phase electric energy meter secondary wiring protection device which comprises a plurality of insulation boxes, the insulation boxes are sequentially arranged, a socket is formed in the outer wall of one end of each insulation box, an adjusting groove is formed in the middle of the middle of each insulation box, and a buckle is arranged in each adjusting groove. A conical sleeve is installed at the position, close to the socket, in the insulation box, the buckle comprises a movable plate, a reset spring is installed on one side of the lower portion of the movable plate, and a pressing piece is arranged on one side of the lower portion of the movable plate. According to the secondary wiring protection device for the three-phase electric energy meter, the problem of potential safety hazards caused by non-tight wrapping of an insulating tape can be avoided; the potential safety hazard problem that the ins