Lightning arrester

Abstract

The invention discloses a lightning arrester, which comprises a body, a separator, a grounding wire terminal, a high-voltage connecting terminal, an insulating layer, an insulated bracket, a mounting hole, a bolt and nut assembly and second valve plates; the high-voltage connecting terminal is connected to one end of the body; the separator is connected to the other end of the body; the other end of the separator is connected with the grounding wire terminal; the body, the separator, the grounding wire terminal and the high-voltage connecting terminal are wrapped by the insulating layer, and first valve plates are formed at intervals on the insulating layer on the body; one end of the insulated bracket is arranged on the body, and the other end of the insulated bracket is provided with the mounting hole; the bolt and nut assembly is arranged in the mounting hole; and the second valve plates are arranged on the insulated bracket at intervals. The lightning arrester has the advantages of simple structure, small volume, light weight, convenience and simplicity in installation due to the mounting bracket and low installation cost, and can effectively work for a long term under severe environments of acid, alkali, dust, salt mist, moisture and the like.

Description

technical field [0001] The invention relates to a lightning arrester, in particular to a lightning arrester which can effectively work for a long time under harsh environments such as acid, alkali, dust, salt spray and humidity, and belongs to the technical field of electrical equipment. Background technique [0002] At present, lightning arresters are commonly used in my country's electric power system, especially in urban rail transit systems; it includes a body, a disconnector, a grounding terminal, and a high-voltage terminal; the high-voltage terminal is connected to one end of the body; the disconnector is connected to the other side of the body One end; the other end of the disconnector is connected to a grounding wire end; valve plates are arranged at intervals on the body, and the valve plates are made of ceramic materials; the arrester with this structure is easy to aging, easy to electrocorrosion, and resistant to corrosion. The ultraviolet performance is poor, and ...

AI Technical Summary

Problems solved by technology

[0002] At present, lightning arresters are commonly used in my country's electric power system, especially in urban rail transit systems; it includes a body, a disconnector, a grounding terminal, and a high-voltage terminal; the high-voltage terminal is connected to one end of the body; the disconnector is connected to the other side of the body One end; the other end of the disconnector is connected to a grounding wire end; valve plates are arranged at intervals on the body, and the valve plates are made of ceramic materials; the arrester with this structure is easy to aging, easy to electrocorrosion, and resistant to corrosion. Poor UV performance, unable to adapt to long-term work in harsh environments such as acid, alkali, dust, salt spray and humidity, and poor waterproof and insulating properties

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