Anti-bird dung anti-bird pecking hard composite insulator

Abstract

The invention relates to an anti-bird dung anti-bird pecking hard composite insulator, which comprises an anti-bird dung grading ring, a hard sheath, hard umbrella skirts, silicone rubber umbrella skirts, a core rod and metal fittings, wherein the core rod is externally wrapped with the hard sheath; the hard umbrella skirts are installed on the outer side of the hard sheath at the two ends of thecore rod; and the silicone rubber umbrella skirts are mounted on the outer side of the hard sheath between the hard umbrella skirts; the metal fittings are mounted at the two ends of the core rod; theanti-bird dung grading ring is mounted on a low-voltage side of the composite insulator, namely, the connection position between the upper and lower metal fittings; the anti-bird dung grading ring iscomposed of a grading ring body and a hard umbrella skirt edge; the diameter of the umbrella skirt edge is wider that the grading ring body; and the hard umbrella skirt edge comprises a large hard umbrella skirt and a small hard umbrella skirt. The anti-bird dung anti-bird pecking hard composite insulator adopts dual protection of the anti-bird dung grading ring and the large hard umbrella skirtto prevent bird dung from falling off so as to achieve the anti-bird dung function; meanwhile, the hard sheath and the silicone rubber umbrella skirt are matched to meet the requirements of the composite insulator for hydrophobicity, pollution flashover resistance, high intensity and bird pecking resistance; and four kinds of umbrella skirt structures are achieved so that the use requirements in different environments can be met.

Description

technical field [0001] The invention belongs to the technical field of electric power insulation equipment and relates to a novel composite insulator, in particular to a novel anti-bird droppings and anti-bird pecking rigid composite insulator. Background technique [0002] With the widespread use of composite insulators, composite insulators on transmission lines are often pecked by birds, and birds pecking composite insulators will cause damage to composite insulators. Birds pecking at the shed of the composite insulator will cause penetrating through holes or partial tearing of the shed, which will reduce the creepage distance of the composite insulator and affect the external insulation performance of the composite insulator. Birds peck the sheath of composite insulators, which will cause the sheath to wear and expose the core rod, which will lead to the failure of the end seal. Under high-humidity weather conditions such as rainy days and foggy days, partial arc discha...

AI Technical Summary

Problems solved by technology

[0004] Based on the fact that traditional composite insulators cannot prevent bird pecking and guano pollution, the present invention provides a new type of anti-bird pecking and anti-bird pecking rigid composite insulator, which has the characteristics of high hardness, anti-bird pecking, and anti-guano. The high and low voltage ends of the insulator are pecked by birds to prevent the shed and sheath from being damaged, and at the same time prevent bird droppings from falling onto the silicone rubber shed, reducing the possibility of bird dropping flashover

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