Punctured and embedded insulator for preventing broken wire of aerial insulated conductor caused by lightning strike

Abstract

The insulator includes arc proof insulator, punctured anchor clamp, insulated conductor, and insulated flexible conductor. The arc proof insulator is utilized to position path of lightning flash over and fix cauterization point of power frequency electric arc. The punctured anchor clamp penetrating insulation layer of insulated conductor is contacts to conductor inside tightly. The insulated flexible conductor connects arc proof insulator with punctured anchor clamp electrically. Thus, when thunder and lightning takes place, discharging happens through arc proof insulator. The invention features no wire to be peeled off, preventing broken wire caused by lightning strike, high safety, easy to implement.

Description

technical field [0001] The invention relates to an overhead power distribution line of a power system, in particular to a puncture clamp insulator for preventing overhead insulated wires from being broken by lightning, which is suitable for overhead insulated wires of various installation types. Background technique [0002] In order to reduce the failure of overhead distribution lines caused by external factors such as trees, birds, and snow, and improve the reliability of power supply, developed countries have gradually adopted overhead insulated wires since the late 1960s. Since the 1980s, my country has implemented a pilot project of insulation transformation for urban overhead distribution networks. In the 1990s, the promotion and application began. [0003] Insulated wires do solve the corridor and safety problems that bare wires cannot solve. Compared with cables, they have obvious advantages of less investment and faster construction. However, the problem of lightn...

AI Technical Summary

Problems solved by technology

[0007] 1. For the current arc-proof fittings, the insulated wire needs to be stripped for a long length, and the exposed part is relatively large, which will have a certain impact on the sealing and insulation of the wire.

[0008] 2. The use of lightning arresters, although the protection effect is good, but the construction and installation are complicated and the investment is large

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