>
>>
>>Dont ever put a ground rod in the concrete base. A lightining strike can
>>easily explode the concrete.
>>
>>Carl
>>KM1H
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> I've heard that for years, but I read recently (I think on the
> Polyphaser website, but I could be wrong) that that is an urban myth
> and that grounding a rebar cage is actually very desirable. Does
> anybody know someone who's actually exploded a concrete base?
>
> Jim W8ZR
>
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Connecting the rebar together and out of the top of the concrete as an
addition to the ground system is called a ufer ground. This uses the
conductivity of the damp concrete to couple to the soil. Do a google search
on ufer ground
I believe that you want to avoid having the rebar sticking out of the
concrete block into the soil underground as this is a direct path into the
soil.
Mark N1UK
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