How do lightning arresters work


Lightning is caused by the movement of a large current from a region of high voltage to a region of low voltage. Lightning finds the path of least resistance to reach the ground. Telecommunications towers and electrical grids provide a path for lightning to travel, but the high voltage of the lightning can damage the components of the system. Adding a lightning arrester to the system redirects the charges in the lightning to the ground. One terminal of the arrester is connected to the device and the other terminal is connected to a rod or wire of low resistance that is buried in the ground. Between the two terminals is a gap of either air or a material of high resistance. This material prevents the normal signals from the telecommunication device from being redirected to the ground. Since lightning strikes have a high voltage, only the electrons from the lightning can cross the region of high resistance, thus diverting the strike away from sensitive devices such as televisions, radios and other telecommunications technology.

Related Articles
  • How do airbag sensors work
    Credit:Patti McConvillePhotographer's ChoiceGetty ImagesAirbag sensors can be used to detect how many people are in the vehicle and measure wheel spee ...
  • Greenshades is a company that offers a line of products that are meant to help companies process payroll, help them comply by all of the necessary tax ...
  • How do hydraulic cranes work
    Credit:U.S. Army Corps of Engineers Savannah DistrictCC-BY-2.0The basic principle of a hydraulic system is that a force applied at one point is transm ...
  • How does Western Union work
    Credit:Ben HiderGetty Images EntertainmentGetty ImagesThe official website further mentions how the process works when it comes to sending money from ...
  • Time is measured with an outflow water clock by filling a vessel with water and slowly draining it away at as even a rate possible. Markings inside th ...
You Might Also Like