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zhen
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i am not quite understand how a lighting rod work, and its relationship between the electric field around it. will the long rod have a better performance then the shorter one's? or maybe a spherical rod...
zhen said:i am not quite understand how a lighting rod work, and its relationship between the electric field around it. will the long rod have a better performance then the shorter one's? or maybe a spherical rod...
belliott4488 said:Well, I'm not surprised your electrician had a different point of view - it seems there's a lot of disagreement over this issue, due at least in part to the difficulty of testing different theories (hey, YOU try it!).
Here are a couple of references for this question:
http://en.wikipedia.org/wiki/Lightning_rod
http://science.howstuffworks.com/lightning7.htm
As for your rod-in-a-trench, I guess if that's how it was designed to work, it should be okay. I wouldn't worry about people getting fried, since the rod should be grounded by the lowest-resistance path to ground available, so the current should follow that path and ignore your friend washing his hands in the sink. Of course, being in the vicinity of a lightning strike is always dangerous, but unless your friend is literally grounding the lightning rod, I don't think current should flow through him.
- Bruce
A lightning rod is a metal rod or conductor that is mounted on top of a building or structure to protect it from lightning strikes. It works by providing a safe path for the electrical current from a lightning strike to travel through and be directed into the ground, preventing damage to the building.
The installation process for a lightning rod involves attaching the rod to the highest point of the building, usually with a mounting bracket or stand. The rod is then connected to a series of cables and grounding rods that are buried in the ground to provide a safe path for the electrical current.
No, not all buildings are required to have lightning rods. However, buildings that are tall, located in areas with frequent lightning strikes, or contain flammable materials may benefit from having a lightning rod for added protection.
Yes, a single lightning rod can protect an entire building as long as it is properly installed and connected to a sufficient grounding system. However, for larger buildings, it may be necessary to install multiple lightning rods to provide adequate protection.
Yes, it is important to follow proper safety precautions when installing or maintaining a lightning rod. This includes using proper equipment and tools, wearing protective gear, and avoiding working on the rod during a storm. It is also recommended to have a professional install or inspect a lightning rod to ensure it is in proper working condition.