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The Special Lightning Rod

05/26/2013 11:06 AM

Hi All
Is there a lightning rod that doesn't absorb lightning?!
I mean ,I need a Rod that it doesn't let lightning strike to the protected area.

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Guru

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#1

Re: The special lightning rod

05/26/2013 11:19 AM

No. It wouldn't be a lightning rod then, would it?

Lightning rod - Wikipedia, the free encyclopedia


Look up the definition I have linked.

Move to a valley with high mountains surrounding your site.

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#2

Re: The special lightning rod

05/26/2013 11:21 AM

The Lightning Anti-Rod

Okay, no such thing.

Lightning strikes because that is the easiest path from ground to cloud. Lightning actually strikes from the ground upward, not the reverse.

You might do what what some in the military do - "Private! Run out there and draw fire!"

You could always put a lightning rod outside the protected area to draw the bolt to a sweeter source. That will not be a 100% guarantee, but it should improve the odds.

I recommend contracting a licensed professional to design and install a lightning protection system.

Actually, the pro should be able to show you why a conventional lightning rod system is best.

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#3

Re: The Special Lightning Rod

05/26/2013 1:15 PM

You need the Harry Potter wand, together with the Lightningawayus! spell.

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#6
In reply to #3

Re: The Special Lightning Rod

05/26/2013 3:21 PM

"Area chargeis negativis"

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#4

Re: The Special Lightning Rod

05/26/2013 2:20 PM

This may not be the solution you seek but here goes. Install a well grounded tower near the item you want "protected". Lightning will strike the tower/pole. This has been practiced on sailboats for quite awhile.

The tower provides a "zone of protection". Google "lightning zone of protection for parameters"

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#5

Re: The Special Lightning Rod

05/26/2013 3:18 PM

Extending the lightning protection zone around the protected area to create a Faraday cage would do it. Lightning strikes would still be conducted to ground but could be isolated enough to prevent damage to sensitive equipment in the protected area.

Faraday Cage

You will need to talk to a professional lightning installation company, this is not the sort of system you can put together yourself without a lot of experience and access to the right standards. Also, you may need to look into isolated earth protection systems and techniques to prevent ground potential rise damaging sensitive electrical equipment in the protected area.

Jack - Former lightning protection designer.

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#7

Re: The Special Lightning Rod

05/27/2013 12:39 AM
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#8

Re: The Special Lightning Rod

05/30/2013 12:58 PM

Reference the NFPA 780-2011 Lightning Protection Code. This will describe the "zone of protection" which you seek.

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