On 1/4/16 8:58 AM, Douglas Ruz (CO8DM) wrote:
Hi,
I am almost ready to build a Buried section base for a 25G tower.
The hole is 2 x 2 ft and almost 3 ft deep...is it ok for a guyed tower?...it is
almost half cubic yard...and about 2000 pounds of concrete...no steel bars
inside.
Any tips are welcome.
I need some ideas about the lightning protection...How can i do a good
connection to the tower legs to the ground rod ?...
You're burying 3 feet of section in the concrete. That makes a fairly
good connection. A typical Ufer ground has 20 feet of conductor (which
doesn't even have to be continuous). You've got 9 feet with just the
vertical part of the legs, and probably another 10 feet with the cross
braces.
While you're at it, though, I'd get 22-23 feet of AWG 4 bare copper and
put that into the concrete (leaving a couple feet sticking up in the
air) with the base. It's a lot easier to connect to a piece of copper
wire than trying to clamp onto the tower leg, and sooner or later,
you're going to want to hook something up to "ground".
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