[TowerTalk] Grounding question

[jimlux]

Jim Brown wrote:
> On Tue, 11 May 2010 16:06:36 -0700 (PDT), AI4WM Bill wrote:
> 
>> Most residential grounding is for safety and not lightning protection. 
> 
> WRONG!  One of the objectives of the grounding requirements of electrical 
> building codes is LIGHTING SAFETY. The other objectives are fire safety and 
> protection of personnel from electrical shock. 
> 
> 

But differing from lightning protection, which is NFPA 780, and different.

Basically, the NEC doesn't deal with air terminals, lightning grounds, 
etc.  But it does deal with protecting the rest of the system from 
lightning induced transients, and from "design screwups" like putting 
your power wiring too close to the lightning discharge wiring.