Lightning protection explosion-proof composite post type insulator with disengaging apparatus
A technology of separating devices and composite columns, applied in insulators, electrical components, circuits, etc., can solve the hidden dangers of safe operation of distribution network lines, difficult to find lightning protection insulators, damage to lightning protection insulators, etc., to improve operation and maintenance and reliable power supply. The effect of ensuring normal power supply and preventing the expansion of faults
Inactive Publication Date: 2014-10-08
宜兴华源电工设备有限公司
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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
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[0009] A lightning-proof and explosion-proof composite post insulator with a detachment device, comprising a shed sheath 2, a terminal fitting 1 installed at the upper end of the shed sheath 2, a grounding terminal fitting 3 installed at the lower end of the shed sheath 2, and The mounting bracket 4 that is fixedly connected to the grounding terminal hardware 3 by bolts, the grounding terminal hardware 3 is connected with a disconnector 5, the disconnector lead wire 6 is connected to the lead wire grounding clamp 7, the lead wire grounding clamp 7 is connected to the mounting bracket 4, and the grounding terminal hardware 3 There is an insulating layer between the mounting bracket 4, and the insulating layer is an insulating sheath 8 sleeved on the grounding fitting 3 and an epoxy insulating washer 9 lined on the bolt, so that the grounding fitting 3 and the mounting bracket 4 and The ground part is insulated.
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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...
Claims
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Inventor 刘勇刘嘉铭李荣伟周建民
Owner 宜兴华源电工设备有限公司
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