How does a lightning rod work?

AI Thread Summary
A discussion on determining the height of a lightning rod based on a protection zone radius of 75 meters highlights the need for calculations in engineering applications. The conversation references a resource found online that may assist in understanding the relationship between the rod's height and its effective radius. The inquiry emphasizes the importance of proper lightning protection for flat-roofed buildings. Participants are encouraged to explore scientific literature for accurate formulas and guidelines. Overall, the thread seeks to clarify the technical aspects of lightning rod specifications.
Rosadoft
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Greetings community

An engineer came to me seeking help today. He asked me to determining the height of a lightning rod If the radius of the protection zone was given.

Assuming the roof of the building is completely flat, what would the height (h = ?) have to be for a given radius of 75 meters (r = 75m)?
 
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Thank you! very helpful!
 
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