[TowerTalk] grounding quesitons: Ufer, strap, exothermic welds

[Jim Lux]

On Apr 17, 2011, at 8:19, Robert Harmon <k6uj at pacbell.net> wrote:

> Mat,
> 
> Sounds like a very good ground system.  I have a question on one thing.
> As part of your grounding system you mention connecting to the rebar.  I assume this is the rebar cage that 
> will be cast in the concrete base.  I think this is a no,no.  A lightning strike can 
> conduct thru the rebar and crack the concrete.  
> 
> 

The reported cases of spalling and cracking are with degraded or bad rebar/bolt installation, usually with some corrosion to allow water to penetrate the gap