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Lightning-protection grounding resistance stabilizer

A lightning protection grounding and stable technology, applied in the direction of connecting contact materials, can solve problems such as withdrawing, loosening, and affecting the stability of the metal round bar grounding wire, and achieve the effect of reducing ground resistance and increasing the contact area

Inactive Publication Date: 2016-08-03
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 4) The upper end of the crimping piece is a circular arc, which can be in close contact with the metal round bar, but the lower end is a straight line structure, which will inevitably leave a space, which will affect the stability of the metal round bar grounding wire, and even cause loosening and withdrawal

Method used

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  • Lightning-protection grounding resistance stabilizer
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  • Lightning-protection grounding resistance stabilizer

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Embodiment Construction

[0026] Figure 5-1 , Figure 5-2 , Figure 5-3 It shows a lightning protection grounding resistance stabilizer, which is used as a stabilizer 5 embedded in the gap between the inverted U-shaped crimping piece 4 and the metal round bar 3 to play a fixing role. The cross-sectional shape of the stabilizer consists of two right-angled sides and an inner The stabilizer is formed by enclosing concave arc-shaped sides, and the stabilizer is formed by uniformly shrinking the larger front end face to the smaller rear end face. In the above-mentioned front end face, the lengths of the two right-angled sides are equal to the radius of the metal round bar 3. The inner concave arc The length of the shape side is 1 / 4 of the 3 circumferences of the metal round bar. The length of the stabilizer is equal to the width of the crimping piece 4, and the length of the concave arc line in the rear end surface of the stabilizer is equal to 1 / 8 of the perimeter of the metal round bar 4. When the ra...

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Abstract

A lightning-protection grounding resistance stabilizer is used in an assembled-type net-shaped grounding wire device and is an arc wedge which is inserted into a gap between a metal round bar and an inverse U-shaped compression-joint sheet and plays a role in fixation. The cross section shape of the stabilizer which is inlaid into the gap between the inverse U-shaped compression-joint sheet and the metal round bar and plays a role in the fixation is composed through enclosure of two right-angle edges and an internal concave arc edge; the larger front end face of the stabilizer uniformly retracts to the smaller rear end face; in the front end face, the length of the two right-angle edges is equal to the radius of the metal round bar; and lengths of the front end and the rear end of the internally concave arc edge are 1 / 4 and 1 / 8 of the perimeter of the metal round bar respectively. The stabilizer is characterized by high compression-joint stability, a large contact area and effective reduction of grounding-wire resistance to the ground.

Description

technical field [0001] The invention relates to a wedge used for wedging two objects to play a fixing role, especially an arc-shaped wedge used for fixing a metal round bar and an inverted U-shaped crimping piece in an assembled mesh ground wire device. Background technique [0002] In the patent application for "multi-metal overvoltage and overcurrent releaser for lightning strikes", in order to reduce the grounding resistance without affecting the stability of tower foundations that have been put into operation, we designed such figure 1 , figure 2 new grounding device. [0003] figure 1 It is the case of adding multiple connecting wires to the cement pole, among which 1 is the original single grounding wire, 2 is (connecting) the round hoop, and 3 is (adding multiple bent) metal round bars (as the grounding wire). [0004] For towers that have been installed and operated for a long time, in regular or irregular tests, it is found that the grounding resistance value ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66
CPCH01R4/66
Inventor 曾宏崔涛徐林
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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