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What you need to know about installing Lightning Rods 

Benjamin Franklin invented the first lightning rod system in the 18th century thanks to a study he carried out with a kite and the electrical nature of lightning and lightning. Indeed, it is thanks to this study that he was able to implement a building protection system. This, by redirecting electricity discharged during storms directly into the ground.


How does a lightning rod work? 

The principle of operation of a lightning rod is to encourage lightning to come and fall on it rather than on the building or elsewhere. For this, a lightning rod is mainly composed of a rod placed on a high point. This rod is then connected to the earth by down conductors (metal cables), in order to directly direct the electricity discharged into the ground. Furthermore, for the correct operation of the lightning capture device, the lightning rod also consists of earth connections connected to each other by metal masses.


The different types of lightning rods 

On the market, there are several types of lightning rod that differ from each other, depending on their usefulness and level of complexity.

  1. The “single rod or PTS” lightning rod The PTS is composed of a metal point that can be up to 8 meters high, in order to be able to encompass the entire structure to be protected. It is connected to two copper down conductors which are then connected to earth connections. It can provide protection over a radius of about 30 meters. However, it is strictly reserved for the protection of small structures.
  2. The “enamel cage” The “enamelled cage” type lightning conductor is made up of a mesh encompassing the entire structure to be protected. For this, many points are then positioned on the roof, with meshes ranging from 5 to 20 meters long depending on the level of protection desired. This type of lightning rod requires a fairly high installation cost and is rather reserved for complex buildings.
  3. The “early streamer or ESE” lightning rod The PDA makes it possible to create a privileged point of impact on its tip using an ionization device. It is able to capture lightning strikes faster than a PTS. Besides, it can also offer a larger protection area (about 120 m). This allows it to protect large structures. The installation of this type of lightning rod is inexpensive, despite the fact that it can protect both the building and its surroundings.


 Is the installation of a lightning rod mandatory?

Generally, the usefulness of installing a lightning rod or not will mainly be determined by the geographical location of your home. Of course, thunderstorms are more present in mountainous regions than elsewhere. Despite this, if you have the means, nothing prevents you from having this protection device installed, even if you are located in a region relatively unaffected by lightning strikes. Procedure for installing a lightning rod This lightning protection device can easily be found commercially.


However, the installation of a lightning rod always requires the intervention of a professional. Indeed, the lightning rod, placed at the top of your home, must respect strict characteristics, including: The position of the tip should be above the highest point The resistance of the earth connection must be at the lowest level The cable connecting the lightning conductor to the ground must be short and direct. It must be separate from any other type of pipe (gas, water, etc.)

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