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Old February 15th 04, 09:05 PM
w_tom
 
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If Ufer grounds were so destructive, then why does "your"
tower talk even recommend them? You could not even cite
appropriate posts in 'tower talk'. Funny. I provided
citations from 'tower talk' that says you posted technical
inaccurate information.

First you deny that earthing is essential for protection.
Then you openly admit lightning caused "lost 2 TV sets, 1
computer, my router and wireless access point". Classic
damage when all incoming lines are not properly earthed. You
have a serious earthing problem in your own home. Instead you
cite your own improperly earthed home as proof that earthing
is not essential to lightning protection; that no protection
is possible. That TV and computer damage is classic when
incoming wires - antenna and utility - are not properly
earthed.

Yes there is more to protection that just earthing. Some
incoming utilities require more than just earthing. However
without earthing, then no protection exists. Earthing is
required at the OPs antenna mast AND on wire as it enters
building - the ground block. Earthing is THE first item - the
most essential - installed for lightning protection.
'System' installed using concepts in "The Need for
Coordinated Protection":
http://www.erico.com/public/library/...es/tncr002.pdf

No earth ground means no effective lightning (or static)
protection. Earthing also required by the National Electrical
Code - for human safety reasons. The answer to zeeeeeeee3's
original questions: earthing is required at both that antenna
mast AND at the common service entrance so that all incoming
wires first connect to the single point earth ground. Driving
the mast into earth is not a sufficient earth ground.

Lancer demonstrates what happens when a poorly earthed home
suffers a lightning strike - unnecessary damage to computer
and TV. He even denies the effectiveness or need for
earthing. That's fine. What is not fine is when Lancer
outrightly lies to others about benefits of single point earth
ground.

For the OP's original question: system demonstrated here
applies:

http://www.erico.com/public/library/...es/tncr002.pdf

Additional products that can utilize advantage of the
essential earthing system are offered at Erico, from
Polyphaser, and even in Home Depot. 'Whole house' protector
is also required on other incoming wires. But the bottom line
remains - lightning (and static) protection is only as
effective as its earth ground.

Earthing is not a total solution. However it is the answer
to OP's original question. No earthing means no protection
exists and a violation of NEC. Earthing is that essential.

In the meantime, even 'tower talk' demonstrates why single
point earth ground (service entrance earth ground) and why
Ufer grounds are so effective. A preferred earthing solution
where people first learn facts before posting denials - and
more information for the OP's original question.

Lancer wrote:
On Sun, 15 Feb 2004 12:35:23 -0500, w_tom wrote:
...
Get over yourself, Do you know what a central office is, what a remote
is? The switching computers as you call them, never directly see the
wireline. Nearly 100% of the damage that the phone companies see is
to the channel units in their remotes. They sacrifice the remote
channel units to protect the rest of the equipment. That damage
cannot be prevented, its expected and accepted.
...

Ok, why didn't my cell phone not work in the site. Hopefully you
won't use the word desense.
...

Read again, current causes heat, heat expands the moisture in the
concrete.


Damage from direct lightning strikes - especially strikes
that might damage concrete - are always directly traceable to
human failure. Protection from the direct strike is that
routine and that easy.



Rather than lecture on reading tower talk, instead read
about effective lightning protection in tower talk - and why
damage from lightning is directly traceable to human failure.
You are quoting the wrong source if you think tower talk says
lightning damage is unavoidable:
http://lists.contesting.com/_towerta...il/004413.html
The basic scenario is to install a Single Point Ground System
that is installed at the building entry. It shunts everything
to ground before it goes in the building. If you can keep it
outside, then you don't really have to do much inside.


http://lists.contesting.com/_towerta...st/032935.html
What you're proposing to do has the makings of what is referred
to as a Ufer ground. Named for its inventor, the principle of
the Ufer ground is simple. ... according to Polyphaser's
"Grounds for Lightning Protection" publication.


http://lists.contesting.com/_towerta...er/026083.html
An Ufer ground ... this may be the ENTIRE ground system. Since
the concrete is conductive and there is lots of concrete area
in contact with the soil, it does a pretty reasonable job.


No, your trying to tell every one that if I earth everything that all
damage is avoidable. Its not that simple, proper earthing is very
important. Disconnecting antennas, and unplugging Power connections
helps complete the protection.

No one is telling you that earthing is not important, but it is not
the total solution.
...