Lightning protection explosion-proof composite post type insulator with disengaging apparatus

Abstract

Disclosed is a lightning protection explosion-proof composite post type insulator with a disengaging apparatus. The lightning protection explosion-proof composite post type insulator comprises an umbrella shirt jacket, a wiring end metal fitting installed at the upper end of the umbrella shirt jacket, a grounding end metal fitting installed at the lower end of the umbrella shirt jacket, and an installation support fixedly connected with the grounding end metal fitting through a bolt. The grounding end metal fitting is connected with a disconnector, the disconnector is connected with a lead wire grounding wire clamp through a lead wire, the lead wire grounding wire clamp is connected with the installation support, and an insulation layer is arranged between the grounding end metal fitting and the installation support to enable the grounding end metal fitting to be insulated from the installation support and a grounding portion. When the lightning protection insulator fails, the disengaging apparatus is disengaged, and the lightning protection insulator quits running, such that faults are prevented from being expanded, obvious fault indication is formed, accordingly, large-area power failure loss and electricity sell loss or major personal damage accidents which are caused by line breaking, insulator flashover or breakdown can be avoided, normal power supply is ensured, economic benefits are increased, and the operation maintenance and power supply reliability is improved.

Description

technical field [0001] The invention is an improvement to the composite post-type zinc oxide lightning protection insulator, and in particular relates to the detachment and fault indication structure of the lightning protection insulator when it fails. Background technique [0002] The known composite post-type zinc oxide lightning protection insulator is composed of an inner gap group connected in series with a zinc oxide resistance sheet and an inner electrode, the outside is covered with a silicone rubber jacket, the upper end fittings are electrodes, and the lower end mounting bolts are grounded through metal brackets or lead wires. However, when the lightning protection insulator with this structure is struck by multiple or direct lightning strikes, the gas inside the insulator will expand rapidly, and it is easy to break the fittings or damage the epoxy tube, resulting in damage to the lightning protection insulator. It is found that the damaged lightning protection in...

AI Technical Summary

Problems solved by technology

However, when the lightning protection insulator with this structure is struck by multiple or direct lightning strikes, the gas inside the insulator will expand rapidly, and it is easy to break the fittings or damage the epoxy tube, resulting in damage to the lightning protection insulator. It was found that the damaged lightning protection insulators brought hidden dangers to the safe operation of distribution network lines and needed to be improved

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