In a message dated 7/24/01 12:43:12 AM Pacific Daylight Time,
labradley@mindspring.com writes:
> Here in Texas we have a lot of rock. The only way to insert ground rods
> vertically is to drill
> and with 16 foot separation I would have a lot of rock holes to drill!
You can also put ground rods in horizontally in the case of rocky 'soil'.
Obviously go as deep as is practical but even if they're only a foot down
they will be helpful.
>
> For my tower I use 9 radials of 1.5" copper in a two foot trench. No
ground
> rods.
> Do you think that would be adequate to run around the house for grounds?
Would what be adequate? I'm not sure what you're referring to. You mean
more radials around the house or hooking everything together or...?
Copper strap is better than wire since it gives you more surface area for
earth contact so it's the preferred material for rocky soil.
Since you're in a high lightning area I would add some horizontal ground
rods to the house part of the system.
Cheers, Steve K7LXC
Tower Tech
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