[TowerTalk] Grounding mast?

hdmc38 at bellsouth.net hdmc38 at bellsouth.net
Wed Jul 30 14:59:31 EDT 2008


 NEC Chapter 8 requires a separate ground from the mast, down the tower to the ground rod. Since the mast is above the rotor that's where it is connected. I'm not saying it works better or worse.Sure can't hurt. I've had my SPG set up this way for 5 years never a problem.YET! Hope this helps.

73 Joe K4XZ

-------------- Original message from jim Jarvis <jimjarvis at optonline.net>: -------------- 

> Been following the SteppIR v. Stepper.IT thread while travelling. 
> Had a few minutes to browse both websites, this morning, 
> and came across a short commentary about lightning and ESD protection 
> for the steppIR. 
> It raises the question of static charge buildup due to wind motion, 
> in (one assumes) 
> drier climates. Points out lack of conductivity across rotors, and 
> asserts 300-500V per meter 
> above ground as the possible potential buildup. Routed into the 
> shack, if the charge isn't 
> bled off. 
> The discussion recommends a positive ground between the mast, and the 
> tower, as well 
> as a good dissipative ground for the tower itself, as lightning 
> protection would dictate. 
> The physics of this are real. What amazes me is that this is the 
> first time I'm seeing the 
> discussion, in these terms. Does anyone actively ground their mast, 
> across the rotor? 
> Firsthand experience? 
> n2ea 
> _______________________________________________ 
> _______________________________________________ 
> TowerTalk mailing list 
> TowerTalk at contesting.com 
> http://lists.contesting.com/mailman/listinfo/towertalk 

More information about the TowerTalk mailing list