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Should I install a lightning rod?

This is a question we are asked frequently. It’s a security issue. Just as you have to install fire systems if necessary, a lightning protection system seems dispensable until it is too late.

If you are a private individual, the reasons are simple. It is a matter of avoiding damages at your home, your personal objects or your family. Computers, television, appliances or heaters are the objects most susceptible to end up “fried” in the event of a lightning strike. Compared to the damage that can be caused by lightning, a lightning rod is cheap.

On the other hand, if you have a company, the question is even simpler. Lightning can destroy machinery, stock, raw materials or simply interrupt production for a considerable time. The losses it can cause are much greater than the cost of the protection system. To give an example, two years ago livestock farm in Chile lost 64 cows because of lightning. More sounded was a case of ten years ago, in Aragon, where a lightning bolt fell on a flour mill, causing a fire that left 5 dead and several seriously injured. The company did not recover from what happened and closed the doors.

All these events are avoidable with the installation of measures against lightning, external -like lightning rods- and internal -like surge protectors-.

But what is the real risk of lightning striking a building?

This is a very simple fact to obtain since we put at your disposal a calculation of the risk of lightning impact. In addition to the probability, it provides a recommendation according to UNE 21186 on the need for the protection system.

Quickly check your actual risk: Risk Calculation

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