Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke

Abstract

An over-voltage protector for a tension pole for preventing a lightning-caused broken wire comprises an arrester body, a linking and supporting component, an insulator and an air gap formed a top electrode and a bottom electrode. The over-voltage protector is characterized in that the arrester body is firmly electrically connected with a pole tower crossarm through the linking and supporting component; the insulator is mounted below the arrester body; the top electrode is fixed between the arrester body and the insulator, and communicated with the arrester body; the bottom electrode is connected with the bottom part of the insulator through a fastener; the air gap is formed between the top electrode and the bottom electrode; a puncture hardware component is mounted in the position of a lower jumper wire of an insulated conductor; and the puncture hardware component is tightly and electrically connected with the bottom electrode and the insulator through metal linking wires. The top electrode can be designed to the shape of a globe, and the bottom electrode can be designed to the shape of a sphere, a plate or a rod, and the like, thereby ensuring the top and the bottom electrodes to correspond to each other. The over-voltage protector has the characteristics of lightning-caused breakage prevention, simple construction, addition of an insulating cover, high safety and reliability, no need of any grounding measure, and convenient installation.

Description

technical field [0001] The invention relates to an overhead power distribution line of a power system, in particular to an out-of-band series gap metal oxide arrester for preventing overhead insulated wires from being broken by lightning, which is especially suitable for use on overhead insulated wires of tension poles and towers. Background technique [0002] The problem of lightning protection and disconnection of overhead insulated conductors is becoming more and more serious in our country. For jumper lines on the distribution line of tension towers, our company's existing puncture arresters can be used to effectively prevent lightning disconnection. However, there is currently no good protection method for the jumper line under the tension pole tower. [0003] The current lightning arrester has the following deficiencies: [0004] 1. Although the existing lightning arresters can effectively prevent the insulated wires from being disconnected by lightning, the installat...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an overvoltage protector for preventing lightning strikes and disconnection of the tension rod. On the basis of the existing metal oxide arrester with outer series gaps, the defects of the original arrester are solved by researching and solving the defects of the original arrester. The new structure is especially suitable for preventing overhead insulated wires from being struck by lightning and breaking wires, and the operation of strain-resistant tower power distribution lines. It is easy to install and maintain.

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