[kwlug-disc] Grounding for antenna
    John Johnson 
    jvj at golden.net
       
    Fri Jun 13 10:54:58 EDT 2014
    
    
  
On 2014-06-13 09:46, Paul Gallaway wrote:
> If there were a lightning induced energy travelling down a wire I would prefer it not come inside my house.
Think of the Nuclear EMP. Lightning does the same. It can create a 
rapidly changing electromagnetic pulse from the current transfer.
And this electromagnetic pulse can create surge voltages in nearby 
conductors.
This is some of the what the various surge protectors guard against.
And as said earlier, lightning rods and such may be enough to bleed off 
charge preventing a build up.
As for a direct lightning strike: there are lots of joules at play.
JohnJ
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