Double-armed type bird repelling shield applied to high-voltage overhead line pole

Abstract

The invention discloses a double-armed type bird repelling shield applied to a high-voltage overhead line pole, and belongs to the field of line protection. According to the double-armed type bird repelling shield, a first T-shaped middle shielding cover and a second T-shaped middle shielding cover are separately arranged at joint parts of a wire and insulator strings, wherein a left spearhead cover and a right spearhead cover are arranged at two outside opening ends, in the direction of the wire, of the first T-shaped middle shielding cover and the second T-shaped middle shielding cover respectively, and a connecting hood is arranged between two opposite opening ends, along the wire, in the internal sides of the first T-shaped middle shielding cover and the second T-shaped middle shielding cover; the fixation / connections between the first T-shaped middle shielding cover and the left spearhead cover, between the second T-shaped middle shielding cover and the right spearhead cover and between the first and second T-shaped middle shielding covers and the connecting hood are in a plugging or riveting mode. The joint parts of the wire and the insulator strings are provided with the defensive shielding protection covers for insulation shielding, so that effective isolation is generated between a nest and a conductor, the distance of electrical insulation is increased, and a grounding fault of a high-voltage power supply line is avoided. The double-armed type bird repelling shield can be widely applied to the protection fields of various high-voltage overhead transmission lines.

Description

technical field [0001] The invention belongs to the field of power line protection, and in particular relates to a defensive bird-repelling shielding device used for high-voltage power transmission overhead lines and tower poles. Background technique [0002] The insulator part of the 35kv tower in our jurisdiction adopts the cross-arm type line fixing mode, which is characterized in that the head end of the high-voltage insulator string is connected with the cross arm of the line tower pole, and its end is connected with the wire of the overhead transmission line; In the fixed mode, the high-voltage insulator string (also known as the insulating arm) is in the same horizontal plane as the wire of the transmission overhead line, or the angle between the plane where the bare wire and the insulator string are located and the horizontal plane is less than 30 degrees, forming a T-shaped connection structure. [0003] This cross-arm connection structure is very conducive to the n...

AI Technical Summary

Problems solved by technology

[0011] Active bird repelling in the form of sound, light, shadow, etc., on the one hand, requires a special power supply for driving, and the reliability and effective working time of the driving power supply restrict the normal working time of the bird repelling device; on the other hand, the bird repellent The class has a certain adaptability to repeated sound, light and shadow signals, and the bird repelling effect of repeated sound, light and shadow signals will be weakened or reduced after a long time; on the other hand, due to the existence of mechanical moving parts or electronic Circuit, in the wild environment, the working reliability of moving parts or electronic circuit parts will be affected to a certain extent. In severe cases, the entire bird repelling device will not be able to send out sound, light, and shadow signals, and lose the bird repelling effect.

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