Lightning protection post insulator and manufacturing method thereof

Abstract

The invention relates to the field of lightning arresters, in particular to a lightning protection post insulator which comprises a drawing rod, a lower hardware fitting positioned at the bottom end of the drawing rod and connected with a cross arm, and an upper hardware fitting positioned at the top end of the drawing rod, the drawing rod and the lower fitting are sleeved with a lightning protection winding core body. The lightning protection winding core body is connected with a discharge connecting rod, and the discharge connecting rod is provided with a discharge ball; the upper-end fitting comprises an upper-end crimping part and a wire binding part which are in threaded connection, and an arc guide cover is arranged between the upper-end crimping part and the wire binding part; and ajacket umbrella skirt is integrally injection-molded outside the lower hardware fitting, the lightning protection winding core body, the drawing rod and the upper-end crimping part. The lightning protection post insulator has dual functions of a post insulator and lightning protection, is convenient to install, does not need to change the structure of an existing tower, and is suitable for wide popularization; the maintenance cost is extremely low after the device is put into operation and is basically maintenance-free.

Description

technical field [0001] The invention relates to the field of surge arresters, in particular to a lightning protection post insulator and a manufacturing method thereof. Background technique [0002] In recent years, with the transmission lines of the high-voltage distribution network, more and more transmission lines have been erected to plateau mountainous areas with complex terrain and complex micro-topography and micro-climate. The erection distance of transmission lines is long, and there are few installations of lightning arresters. At present, transmission lines are basically only installed with post insulators, and lightning arresters are only installed in areas with many mines, which cannot meet the lightning protection requirements of areas with complex terrain. [0003] At present, most of the ordinary insulators installed on the transmission lines, and some installed gap lightning protection insulators, although they can have a certain lightning protection effect,...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a lightning protection post insulator and its manufacturing method, which solves the problem of poor lightning protection effect and inability to protect insulators and transmission lines mentioned in the background technology above.

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