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Lightning arrester grounding rod

A grounding rod and lightning arrester technology, which is applied in the field of lightning arrester grounding rods, can solve the problems of surface oxidation of grounding rods, the failure of lightning arresters to protect electrical equipment, and high maintenance costs, and achieve the effect of low ground resistance

Active Publication Date: 2016-05-11
吉林市能兴电力设备有限公司
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Due to the harsh underground environment, it is easy to oxidize the surface of the grounding rod and increase the grounding resistance. If this problem is not dealt with in time, the arrester will not be able to protect the electrical equipment normally when a lightning strike occurs.
The current grounding rod is basically just a fixed homogeneous metal rod. After oxidation, it must be pulled out for repairing, or directly replaced with a new grounding rod, and the maintenance cost is relatively high.

Method used

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0013] exist figure 1 In the first embodiment shown, the lightning arrester grounding rod includes a mandrel 1 made of metal with a high melting point; the upper end of the mandrel 1 has a terminal 10, and the lower end is tapered; the side wall of the mandrel 1 is wrapped with a The metal wall 2 is made of a metal with a low melting point.

[0014] For the grounding rod of the above lightning arrester, the metal with a high melting point is made of copper, iron or stainless steel with a melting point above 1500°C; the metal with a low melting point is made of aluminum with a melting point of about 660°C; the low melting point metal can also be made of a fuse However, when the fuse material is used, every time the lightning current flows, it will melt and solidify once, so that the metal wall will be consumed faster and the service life is not as good as aluminum...

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Abstract

The invention provides a lightning arrester grounding rod comprising a core rod formed by high-melting-point metal. The upper end of the core rod is provided with a wiring terminal, and the lower end is conical. The side wall of the core rod is wrapped by a metal wall formed by low-melting-point metal. According to the lightning arrester grounding rod, a surface oxide layer can be automatically eliminated, and maintenance is not required in a long period of time so that maintenance cost can be greatly reduced.

Description

technical field [0001] The invention relates to the field of electric facilities, in particular, it is a lightning arrester grounding rod. Background technique [0002] For the current lightning arrester grounding rod, a fixed metal rod is generally used, generally made of copper rod, iron rod or alloy rod, which is directly inserted into the ground, and its upper end is connected to the lightning arrester. Due to the harsh underground environment, it is easy to oxidize the surface of the grounding rod and increase the grounding resistance. If this problem is not dealt with in time, the arrester will not be able to protect the electrical equipment normally when a lightning strike occurs. However, the current grounding rod is basically just a fixed homogeneous metal rod. After oxidation, it must be pulled out for repair, or directly replaced with a new grounding rod, and the maintenance cost is relatively high. Contents of the invention [0003] In view of the above pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/66
Inventor 仲杏英
Owner 吉林市能兴电力设备有限公司
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