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Old February 25th 08, 03:16 AM posted to rec.radio.amateur.antenna
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Default Grounding in Sand

On 25 Feb 2008 02:40:48 GMT, "Ed_G"
wrote:

( Richard, you anticipated my ground intentions incorrectly as I
would never use a coax connection for grounding.... ) But I do
understand ground currents.... so perhaps I'd be better off just letting
the equipment ground itself through the Outlet's little bitty #12 wire
all the way back to the meter box ground.)


Hi Ed,

I may have incorrectly anticipated, but you haven't really described
any ground out at that remote point that was tied into the safety
ground at the service entrance - unless it is in this reference to
"little bitty #12 wire."

Do you have remote power through 100' of #12? It isn't clear. If you
don't and the far end is floating perhaps you are driving a dipole,
that too isn't clear - so then, no remote ground is called for.

However, as you are 100 feet up, looking over the dunes along the
coast (I imagine) out over the sea, this is a natural site for a
vertical for DX. Ground would be called for and we return to
potential differences.

So, to reduce any future "anticipation," is the remote site bonded to
the service ground of your home?

73's
Richard Clark, KB7QHC
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Old February 25th 08, 04:11 AM posted to rec.radio.amateur.antenna
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Default Grounding in Sand


So, to reduce any future "anticipation," is the remote site bonded to
the service ground of your home?



Let me rephrase my situation.

New house near completion. My shack will be at the far corner from
the power service entrance.

I was thinking of just putting a couple ground rods ( bonded together
) just outside my ham shack and letting them be my equipment chassis
ground, probably through a #6 wire from shack to ground rods. My intent
was primarily for DC safety, plus a little 'static' dissipation.

As pointed out by one of you guys, I should meet NEC code, which
would mandate my bonding this separate ground I would install with the
house service entrance ground. My problem with that is that it would
require a run of cable from the ground rods at least 100 feet to get
down and around the house to the service entrance. This is not really
practical nor desirable on my part.

While I understand the potential for ground loops, I deem it a
rather small likelyhood in relation to the static dissipation benefit
I'd get with the closer separate ground I could install. Others here
seem to disagree with me, so I closed my previous post with the comment
that perhaps I'd be better off forgetting my shack ground and just let
the equipment be grounded through the individual power cords to the
outlet ground.

Now that I may have cleared my situation up, what do you guys
think?


Ed K7AAT

PS: Richard, just missing a view of the Pacific... about a half of a
mile away ... and I may reconsider a vertical antenna instead of the
dipole I was going to use.


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Old February 25th 08, 08:22 AM posted to rec.radio.amateur.antenna
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Default Grounding in Sand

Ed_G wrote:

Let me rephrase my situation.

New house near completion. My shack will be at the far corner from
the power service entrance.

I was thinking of just putting a couple ground rods ( bonded together
) just outside my ham shack and letting them be my equipment chassis
ground, probably through a #6 wire from shack to ground rods. My intent
was primarily for DC safety, plus a little 'static' dissipation.

As pointed out by one of you guys, I should meet NEC code, which
would mandate my bonding this separate ground I would install with the
house service entrance ground. My problem with that is that it would
require a run of cable from the ground rods at least 100 feet to get
down and around the house to the service entrance. This is not really
practical nor desirable on my part.

While I understand the potential for ground loops, I deem it a
rather small likelyhood in relation to the static dissipation benefit
I'd get with the closer separate ground I could install. Others here
seem to disagree with me, so I closed my previous post with the comment
that perhaps I'd be better off forgetting my shack ground and just let
the equipment be grounded through the individual power cords to the
outlet ground.

Now that I may have cleared my situation up, what do you guys
think?


Ed K7AAT

PS: Richard, just missing a view of the Pacific... about a half of a
mile away ... and I may reconsider a vertical antenna instead of the
dipole I was going to use.


I still recommend just using the outlet ground.

I don't think you'd accomplish anything by adding the ground rods you
mention, and it might even cause a hazard as some others have said. It
certainly won't be any better than your household wiring system ground
for safety or static discharge. What I would do is make sure all your
equipment is grounded through the household wiring safety (outlet)
ground. Its purpose is electrical safety, and that's what it's designed,
installed, and inspected for. Ungrounded equipment can be connected to
grounded equipment or to the mains safety ground -- if it has a power
cord, replace the cord with a 3-wire cord and connect the safety ground
to the chassis and cabinet.

Roy Lewallen, W7EL
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Old February 25th 08, 04:56 PM posted to rec.radio.amateur.antenna
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Posts: 199
Default Grounding in Sand

On 25 Feb 2008 04:11:58 GMT, "Ed_G"
wrote:


So, to reduce any future "anticipation," is the remote site bonded to
the service ground of your home?



Let me rephrase my situation.

New house near completion. My shack will be at the far corner from
the power service entrance.

I was thinking of just putting a couple ground rods ( bonded together
) just outside my ham shack and letting them be my equipment chassis
ground, probably through a #6 wire from shack to ground rods. My intent
was primarily for DC safety, plus a little 'static' dissipation.

As pointed out by one of you guys, I should meet NEC code, which
would mandate my bonding this separate ground I would install with the
house service entrance ground. My problem with that is that it would
require a run of cable from the ground rods at least 100 feet to get
down and around the house to the service entrance. This is not really
practical nor desirable on my part.



After you take your first couple of lightning strikes you will feel
that a 100' of #6 ground wire to the power ground for the antenna
system ground is a simple requirementl.

I will probably never build another house but if I do, the first
consideration will be proper grounding for both NEC and lightning
protection.

Experience has led me to believe that if you cannot tie a new ground
rod back to the panel ground you should not have the ground rod.

John Ferrell W8CCW
"Life is easier if you learn to
plow around the stumps"
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