1, Dampers hammer

Protective fittings, installed at both ends of each wire in each gear distance, eliminate vibration by absorbing the energy of vibration. The installation should be perpendicular to the ground, and the installation distance deviation should not be greater than ±30mm. Displacement fatigue should not occur during operation.

2,Spacer-dampers for four-bundle conductor

Protective fittings are installed on the split wire of 500kV transmission line. Ensure that the distance between the split wire harness meets the electrical performance, and inhibit the vibration of the secondary distance and the breeze vibration. The structural plane of the spacer bar of split wire should be perpendicular to the wire, and the secondary distance should be measured during installation. The installation distance deviation of the first spacer bar on both sides of the tower should not be greater than ± 1.5% of the secondary distance of the end, and the remaining distance should not be greater than ± 3% of the secondary distance. The installation position of each phase spacer rod should be consistent with each other. Displacement fatigue should not occur during operation.

3. Composite insulators

A new insulator is light in weight and small in size, which can save cleaning or detecting the insulator. The internal and external insulation is basically the same, and the zero value problem of internal breakdown generally does not occur. During installation, the surface of the umbrella skirt shall not crack, fall off or be damaged, and the core rod and end accessories of the insulator shall not be obviously skewed. During operation, the umbrella skirt and sheath should not be damaged or cracked, and the end seal should not crack and age.

4. Tempered glass insulator

Widely used in 500KV and below transmission lines, its high mechanical strength, good transparency and easy appearance inspection; All kinds of damage will occur when the explosion, reduce labor intensity. Before installation, clean the surface one by one and check the appearance one by one. Check the clearance between bowl head and spring pin during installation. The ball head shall not come out of the bowl head with the spring pin installed. Surface dirt should be removed before acceptance. There should be no self-explosion or surface crack during operation.

5, porcelain suspension insulator

Steel anchor will not break, creepage distance is large, high corrosion resistance; Reduction of radio interference; There is a zero value problem. Before installation, clean the surface one by one and check the appearance one by one. Check the clearance between bowl head and spring pin during installation. The ball head shall not come out of the bowl head with the spring pin installed. Surface dirt should be removed before acceptance. During operation, the umbrella skirt should not be damaged, the porcelain should not crack, and the glaze should not burn out.