Re: Radial Horizontal Ground Rods (RHGRs :-)

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: Radial Horizontal Ground Rods (RHGRs :-)
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 12 Dec 1997 09:31:48 -0600
• Approved: tesla-at-stic-dot-net

From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
Sent: 	Thursday, December 11, 1997 7:42 PM
To: 	Tesla List
Subject: 	Re: Radial Horizontal Ground Rods (RHGRs :-)

Adam wrote:

[snip]
> So, I have decided to try using three 8' 1/2" ground rods radiating out
> from my coil location, buried horizontally about 6" below the ground
> surface along with a decent amount of rock salt (NaCl, not the CaCl2
> kind) to help out.  All connections are now 2" wide copper flashing
> strips (previously #4 DC cable).   As soon as the weather is nice enough
> for me to move my coil outside, I will let you all know how this works.
> 
> I am still open to suggestions on what other shallow-ground techniques
> might be worth while- maybe burying long and wide copper flashing strips?

The radially placed strip arrangement is what we plan to use for the 
130kW coil.  There will be 8 radials buried about 300mm deep that 
extend outwards about 50 feet, made of 3mm x 50mm hot dip galvanized 
mild steel.  The strips will be embedded in an earth enhancing compound
that should keep the total Z to earth around 4 ohms.


-GL

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