Posted by John T on December 02, 2013 at 15:37:31 from (216.249.76.176):
In Reply to: My Wife's idea. posted by Jiles on December 02, 2013 at 11:55:29:
While I had some experience in lightning protection engineering yearssssssssssss ago, I've slept since, so I will just offer a few thoughts bearing no more expertise and credibility then Billy Bob or Bubba's opinions:
If I was going to invest in a full blown proper engineered and installed lightning protection system, sure Id take a look at those weather vanes. However, absent a proper system I don't see all that much advantage in earth grounding a single weathervane and probably wouldn't mess with it as you could do more harm then good if its not done correct and as an entire system. Absent the proper cone of protection with large enough braided copper cables and electrodes, simply sticking up a weathervane with inadequate coverage and inadequate earth grounding and cables could attract lightning which might jump to the building and burn it down.
Again, NO warranty its been too long, but if I were sticking up a weathervane on my barn Id probably not mess with grounding unless I did an entire proper system. In the event you choose to do otherwise, large braided copper cables and an entire system of GroundING Electrodes is gonna cost more then the weathervane Id guess.
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