I am no expert... In fact I have yet to get a tower.
>From what I have heard SEVERAL 10foot ground rods is the best.
Not just a few around the base. But rather add extra rods further out
and chain them together. do not make 90 degree bends but slight turns.
that is what I have heard.
--
73 DE N9SRW (wanting a tower)
Leif Ericksen
On Mon, 2008-04-14 at 15:14 -0300, Beat Meier wrote:
> Wauw
>
> Thanks a lot for the asnwers ;-)
>
> Comeon nobody has any information to help me?
> I realy want to put the grounding system in and erect my tower :-(
>
> Please anyone
>
> Thanks Beat
>
> Beat Meier wrote:
>
> >Hello
> >
> >After several posts and reading a lot of the forum about tower grounding
> >the opinions seems to differ a lot.
> >I'm now almost ready to install my grounding system but I'm in doubt.
> >First of all I will have a lot of electronic at the tower (embedded
> >system,wifi stuff at 2.4GHz and 5.8GHz).
> >And where I live horizontal grounding is much more better than vertical
> >grounding...
> >Analyzing the earth has given me that the best value is in 1m deep
> >What I have:
> >
> >0. Tower triangle 30cmx30cmx30cm (tower height 66m) and 6 concrete bases
> >every 1m³ of concrete with rebar cage
> >3x in a distance of 20m of the base (G1.1, G1.2, G1.3)
> >3x in a distance of 35m of the base (G2.1, G2.2, G2.3
> >Something like this
> >
> >
> > G2.1 G2.2
> >
> >
> > G1.1 G1.2
> >
> >
> > B
> >
> >
> > G1.3
> >
> >
> > G2.3
> >
> >
> >
> > Garage (20m from base)
> >
> > House (55m
> >from base)
> >
> >
> >The only connection are the power lines from the garage to the base no
> >other connection.
> >I will connect the base with the garage with a wire and and a lightning
> >protector but this is an other "article" ...
> >
> >1. The tower base has too a 1m³ concrete with 4 connections of stainless
> >soldered to the rebar cage below earth.
> > the tower base of steel has 3 connections of stainless soldered
> >above earth.
> >
> >2. I have now opened from Base (B) to G1.1 and from Base to G1.2 a
> >trench of 80cm deep.
> >The idea is to connect a copper wire from Base to G1.1 and from Bae to
> >G1.2 to use so 3m³ concrete ...
> >
> >Now my questions.
> >
> >What should this wire be? Most articles here in the list says you should
> >use a #4 (which is AWG4 I guess).
> >What I've read in several books is you must use #0 to put in earth.
> >My problem is now ok the greather the better but #0 is very very
> >expensive here.
> >Now the question is: Can I use AWG2, AWG3 or even AWG4? I cannot buy
> >solid wires only stranded (7x3mm for example for AWG0)
> >I think the usage of AWG0 is because it should alive very long in earth
> >(apart that is disapates better the current)
> >
> >So in the fact that I have 2x20m horizontal wires what should I use?
> >Do I have to put ground roads between B and G.1.1 and B and G1.2 for
> >lightning protection grounding system?
> >What is better:
> > 2 radials more at the base
> >or
> > use the other 2m³ concrete and go from G1.1 to G2.1 and from G1.2 to G2.2
> >and if it's better to go from G1.1 to G2.1 can I use a wire which is
> >smaller than that comes from the base?
> >What do you think? What is better for a lightning protection of the
> >equipment?
> >
> >It would be nice to here much answers. I'm since a lot of time
> >investigation and time goes on and my tower is still
> >not elected :-(
> >Now I really want to go on but I don't want to burn my equipments ...
> >
> >Thanks a lot for your time and ideas!
> >
> >Beat
> >
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> >
> >
> >
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> >
> >
> >
>
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