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bburley

join:2010-04-30
Cold Lake, AB
reply to John Galt

Re: Tower concrete base

said by John Galt:

said by bburley:

The manual for a DMX-68 wants 4 cubic feet of concrete.

Perhaps you mean yards...??

I also met someone who was concerned about concrete + lightning. He said that a direct hit could split the concrete and his solution was a rubber insulator around the concrete and a separate ground rod. At only 30 feet, I don't know if that is a concern.

This demonstrates a complete lack of understanding of the issues involved (not you...the other person).

The base needs a spot-welded rebar cage with a tail for a bonding jumper to the tower/grounding system.

That should have been 4^3 feet or 64 cubic feet. I was typing without thinking

The rebar cage makes sense. Do you have a link to any page where I can read more on that?


John Galt
Forward, March
Premium
join:2004-09-30
Happy Camp
kudos:8
said by bburley:

The rebar cage makes sense. Do you have a link to any page where I can read more on that?

Check out the Rohn link I posted above...