An anti-bird droppings and anti-bird pecking rigid composite insulator

Abstract

An anti-bird droppings and anti-bird pecking rigid composite insulator comprises an anti-bird droppings grading ring, a hard sheath, a hard shed, a silicone rubber shed, a mandrel and fittings. A hard sheath is wrapped outside the mandrel, a hard shed is installed outside the hard sheath at both ends of the mandrel, and a silicone rubber shed is installed outside the hard sheath between the hard sheds. Fittings are installed at both ends of the mandrel, and an anti-bird droppings equalizing ring is installed on the low-voltage side of the composite insulator, that is, at the connection between the upper side of the mandrel and the upper side fittings. The diameter of the umbrella skirt is wider than that of the pressure equalizing ring body, and the hard umbrella group is divided into hard and small umbrella groups. The invention adopts the dual protection of the anti-bird droppings pressure equalizing ring and the hard large umbrella skirt to prevent the falling of the bird droppings and realize the function of preventing the bird droppings. At the same time, it is equipped with a hard sheath and a silicone rubber shed to meet the requirements of composite insulators for hydrophobicity, pollution flashover resistance, high strength, and bird peck resistance; and it has four shed structures to meet the use requirements of different environments.

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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