Lightning arrester and its manufacturing process

Abstract

The invention discloses a lightning arrester. The lightning arrester comprises a lightning arresting rod and an installation base (10), wherein the top end of the lightning arresting rod is a pointed end (1), and the installation base (10) is connected with a roof of a building. The lightning arresting rod is perpendicularly connected to the installation base (10). The lightning arrester further comprises a pre-discharging device and a lightning protection device, wherein the pre-discharging device and the lightning protection device are arranged in the middle of the lightning arresting rod, and the lightning protection device is located below the pre-discharging device. The surface of the lightning arresting rod is plated with a zinc coating through hot-dip galvanizing, and a galvanizing solution comprises rare earth in the galvanizing process, wherein the content of the rare earth accounts for 0.1%-0.2% of the galvanizing solution. In this way, on one hand, a large number of ions are clustered on the surface of the lightning arrester, and on the other hand, the oxidation and corrosion resistant properties are good, so that the discharging effect is improved.

Description

Technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a lightning protection lightning receptor used on the top of a building and its manufacturing process. Background technique [0002] Air-termination devices, also called lightning arresters, are devices used to protect buildings and other devices from lightning strikes. Install a metal rod on the top of the tall building, connect it with a metal plate buried in the ground with a metal wire, and use the tip of the metal to discharge to gradually neutralize the electricity carried by the clouds and the electricity on the ground, so as not to cause accidents . Air-termination device is the lightning-receiving device installed at the top of the building. It, together with the down conductor and grounding device, form the external lightning protection device of the building. The air-termination device of the prior art includes an air-termination rod and a mounting base from ...

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Problems solved by technology

[0003] 1) Since the lightning rod itself is a pointed metal needle, its surface area is very limited, so the amount of ions it gathers on the surface is small, so its discharge effect is also very limited;

[0004] 2) In addition, most air-termination rods are usually made of metal materials such as iron. Therefore, the surface of the air-termination device is easy to form metal oxides or be corroded by the external environment, which affects the flow of charges and ultimately affects the contact surface. The discharge effect of the flasher

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