Re:Ufer Ground question

[Julius Fazekas n2wn]

Hi Dave,

Just out of curiousity, did you consider the tower
base safe after that experience, from a mechanical
standpoint?

What you describe for your system seems like a lot
more than a 10' length of wire set in concrete. We
have this type of construction in our facility and as
you say it is expensive and requires proper
installation (sadly, that can be an iffy proposition).
We haven't had any lightning strike issues for a large
installation on the highest point of the county.

73,
Julius
n2wn
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[David F. Reed]

Julius,

good question...

J F wrote:

>Hi Dave,
>
>Just out of curiousity, did you consider the tower
>base safe after that experience, from a mechanical
>standpoint?
>  
>
At first no. not until it was surveyed my a licensed mechanical and
electrical engineer team; they used some sort of fancy equipment to see
what was up; it was only damaged at the site that I described, and had
no structural issues according to them.

I admit, I was plenty worried about what I couldn't see, but they had
something like sonar or radar (I don't recall if it was RF or sonic, but
it saw reflections from surface interfaces, and was quite clear.

>What you describe for your system seems like a lot
>more than a 10' length of wire set in concrete.
>
It is indeed far far more than 10' of wire set in concrete, which I
would hardly call a Ufer ground.

> We have this type of construction in our facility and as
>you say it is expensive and requires proper
>installation (sadly, that can be an iffy proposition).
>We haven't had any lightning strike issues for a large
>installation on the highest point of the county.
>  
>
Some people are luckier than others, and some areas get more lightning
storms than others; we are not far from some famous tornado alleys, so
we have plenty of them.

>73,
>Julius
>n2wn
>  
>
73 de Dave, W5SV

--
David F. Reed  - W5SV -     cell: 512 585-1057

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[Julius Fazekas n2wn]

Thanks for the feedback Dave!

It's an interesting topic, and as you say some are
luckier than others, with lightning and ground
conductivity.

Hope you find a nice 10 acre lot, on the edge of a
nice salt flat (or with an ocean view). I'm laying out
80M radials this summer. The K2 and I have a title to
defend now.

Cheers,
Julius
n2wn
k2/100 #3311

--- "David F. Reed" <[hidden email]> wrote:

> Julius,
>
> good question...
>
> J F wrote:
>
> >Hi Dave,
> >
> >Just out of curiousity, did you consider the tower
> >base safe after that experience, from a mechanical
> >standpoint?
> >  
> >
> At first no. not until it was surveyed my a licensed
> mechanical and
> electrical engineer team; they used some sort of
> fancy equipment to see
> what was up; it was only damaged at the site that I
> described, and had
> no structural issues according to them.
>
> I admit, I was plenty worried about what I couldn't
> see, but they had
> something like sonar or radar (I don't recall if it
> was RF or sonic, but
> it saw reflections from surface interfaces, and was
> quite clear.
>
> >What you describe for your system seems like a lot
> >more than a 10' length of wire set in concrete.
> >
> It is indeed far far more than 10' of wire set in
> concrete, which I
> would hardly call a Ufer ground.
>
> > We have this type of construction in our facility
> and as
> >you say it is expensive and requires proper
> >installation (sadly, that can be an iffy
> proposition).
> >We haven't had any lightning strike issues for a
> large
> >installation on the highest point of the county.
> >  
> >
> Some people are luckier than others, and some areas
> get more lightning
> storms than others; we are not far from some famous
> tornado alleys, so
> we have plenty of them.
>
> >73,
> >Julius
> >n2wn
> >  
> >
> 73 de Dave, W5SV
>
> --
> David F. Reed  - W5SV -     cell: 512 585-1057
>
>

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