[TowerTalk] Connecting Tower to Ground Rod

Pete Smith N4ZR n4zr at contesting.com
Thu Oct 10 08:09:40 EDT 2013


Does this standard apply even if, as in my case, the tower is 190 feet 
from the house entrance?  Does it need to be a direct, dedicated 
connection, or could a hardline shield, for example, be used for the 
tower to house electrical service ground connection.  In cross section, 
even LDF4-50A is a lot beefier than #6.

73, Pete N4ZR
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On 10/9/2013 11:11 PM, GARY HUBER wrote:
> National Electrical Code 250.94 will apply to the Rohn Tower and 
> grounding. A minimum of #6 copper is required for bonding the tower 
> and ground to the electrical service ground. With the galvanized tower 
> you don't want a direct copper and galvanizing connection as when wet 
> there will be electrolytic corrosion. Stainless Steel, and Aluminum 
> are the most commonly used metals which can be used to isolate the 
> copper wire from the galvanizing.
>
> NOTE: this BONDING of GROUNDS is the minimum REQUIRED for electrical 
> safety. It is NOT adequate for the dissipation of a direct lightning 
> strike.
>
>
> 73 ES DX,
> Gary -- AB9M
>
> -----Original Message----- From: Michael Warren
> Sent: Wednesday, October 09, 2013 5:50 AM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Connecting Tower to Ground Rod
>
> What standardized method can I use to connect the base of a Rohn 25 to a
> ground rod driven into the ground very near the base?
>
>
>
> Michael Warren
>
> Ka5rej
>
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