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Special built-in insulating part for fixed gap overvoltage protector

A technology of fixing gap and overvoltage, applied in insulators, electrical components, circuits, etc., can solve the problems of insufficient insulator strength, insufficient connection, affecting bottom insulation, etc.

Inactive Publication Date: 2014-12-10
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the assembly, installation and use of the above two methods, due to the insufficient strength of the built-in insulator, it is easy to break and the connection is not in place, and the water leakage after the sealing test will affect the bottom insulation.

Method used

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  • Special built-in insulating part for fixed gap overvoltage protector
  • Special built-in insulating part for fixed gap overvoltage protector
  • Special built-in insulating part for fixed gap overvoltage protector

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Such as Figure 1-3 As shown, a special built-in insulator for a fixed-gap overvoltage protector has an insulator 1 and a built-in

[0013] The insert 2 on the top of the insulator 1, the insert 2 is wide at the top and narrow at the bottom. The upper part of the insert is cylindrical, and the lower part is multi-faceted columnar. An annular groove is provided in the middle section of the multi-faceted columnar. Opening from the upper end of the insert There is a counterbore 4, and the inner wall of the counterbore 4 is provided with an internal thread 3. When working, the insulator with the built-in hexagonal insert is tightly connected to the bracket of the overvoltage protector through the screw thread.

[0014] The multi-sided columnar shape is four-sided columnar shape, five-sided columnar shape, six-sided columnar shape, eight-sided columnar shape or cylindrical shape.

[0015] In order to achieve good sealing performance, a circular sinking groove 6 is provided...

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Abstract

The invention discloses a special built-in insulating part for a fixed gap overvoltage protector. The special built-in insulating part comprises an insulator and an insert with a wide top and a narrow bottom, the insulator is arranged in the top of the insulator, the upper portion of the insert is cylindrical, the lower portion of the insert is a multi-faceted column, an annular groove is formed in the middle section of the multi-faceted column, a counter bore is formed in the upper end of the insert, and an internal thread is arranged on the inner wall of the counter bore. The special built-in insulating part has the advantages that the insulating part is closely connected on a support of the overvoltage protector in a threaded manner through a screw and avoids the conditions that bottom insulation is damaged and the like as a past built-in insulator with insufficient strength easily fractures, is not connected in place and leaks water after seal test.

Description

technical field [0001] The invention relates to a special built-in insulator for an overvoltage protector, in particular to a special built-in insulator for a fixed-gap overvoltage protector. Background technique [0002] At present, many overvoltage protectors use externally connected insulators for protection, and some overvoltage protectors use insulators with built-in inserts. During the assembly, installation and use of the above two methods, due to the insufficient strength of the built-in insulator, it is easy to break and the connection is not in place, and the water leakage after the sealing test will affect the bottom insulation. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a special built-in insulator for a fixed-gap overvoltage protector, which has high strength and is not easy to tear. [0004] The present invention is achieved through the following technical sol...

Claims

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Application Information

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IPC IPC(8): H01B17/00H01B17/40
Inventor 杨洋周同梅薛霜姚金城杨文豪吴强刘波李长根杨爱华
Owner STATE GRID CORP OF CHINA
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