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Old 04-01-2017, 07:41 PM   #81
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I'm curious as to what would require 80 Manchester? ~CS~
Was a prison Job I was running. 50 new perimeter light poles. I was not allowed to just put them in the bases. I had to drive them next to the bases in undisturbed soil.
Then I had 3 Generators, 4 new guard towers (with panels in each one). A new building for the Guards. 3 new Medium Voltage Transformers, a new kitchen building.
It was a great project,all done in phases. In Total it lasted 3 years.
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Old 04-01-2017, 10:44 PM   #82
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WHY? And if not tested at time of install then regularly tested the rods could be corroded and not as effective as they feel a 1" 10' rod should be.
Sorry,I should have said for the main water line. Our water lines are almost all copper here.
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Old 04-02-2017, 12:57 AM   #83
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Was a prison Job I was running. 50 new perimeter light poles. I was not allowed to just put them in the bases. I had to drive them next to the bases in undisturbed soil.
Then I had 3 Generators, 4 new guard towers (with panels in each one). A new building for the Guards. 3 new Medium Voltage Transformers, a new kitchen building.
It was a great project,all done in phases. In Total it lasted 3 years.
Where?

Hagerstown?
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Old 04-02-2017, 07:41 AM   #84
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Sorry,I should have said for the main water line. Our water lines are almost all copper here.
I was thinking that but glad you cleared it up.
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Old 04-02-2017, 08:40 AM   #85
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I have a Milwaukee impact wrench with a 1/2" drive for a socket. Are there any ground rod driver sockets to fit that?
Just put a 3/4" deep socket on it.
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Old 04-02-2017, 08:45 AM   #86
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An impact wrench/gun won't drive a ground rod.
I'll admit it was somewhat of a beach environment with compacted sand when we did it.
Also, I have no problem driving ground rods at a very steep angle if it would go any faster.
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Old 04-02-2017, 11:03 AM   #87
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We got a variance on one site for the rod length and is the only time we were "allowed" to modify the length.. There was a layer of slate that about 9' below grade and you couldn't get through it with a rod... All of the piles they were installing had to be predrilled to 90% diameter. We went in til we hit it and cut them off.. Also deleted the 100 or so along the piperacks nd used the piles for those rods.. But all the building ones were still a battle..

There have been a few places I've been to that want 60-80' rods too and those can be fun, depending on where they are going..
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Old 04-02-2017, 12:10 PM   #88
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I recently purchased TheGroundPounder. It's a American made tool that works great. I only drive rods every other week on new services. I purchased this on website Greenwood Tool Company, but I did see J. Harlen Co. Is selling them as well. Great tool. There's a video on YouTube.

https://goo.gl/images/EHrthI
The video looks like he was driving it into quicksand
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Old 04-02-2017, 12:24 PM   #89
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The video looks like he was driving it into quicksand
I think if that flat end was just a bit concave it would help avoid glancing blows.
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Old 04-02-2017, 12:36 PM   #90
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The video looks like he was driving it into quicksand
yeah Id love to see him using that tool to drive a ground rod in the clay and rock we have here
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Old 04-02-2017, 02:03 PM   #91
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Where?

Hagerstown?
Out side of Jessup - but I also did work at that prison as well - redid the metal shops. The last company I was with did a good amount of prison / jail work
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Old 04-02-2017, 02:10 PM   #92
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Did you see Avon Barksdale when you were in Jessup??
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Old 04-02-2017, 03:56 PM   #93
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Due to the glaciers of 20,000 years ago... many of us have to deal with truly rotten ground.

Every hill and mountain around here used to be covered by miles of ice... which took all the topsoil away.

Our local solution to bad, so-called, soil is to power it out with a back-hoe or excavator. The size of these machines and their slow rate of progress would astound you.

Their shovels often have to be replaced by hydraulic jack-hammer heads. (!!!)

After the original material has been powered out, it, the hole, is backfilled with decent fill. ( typ. screened to 2" minus )

This is then re-compacted... and made tight.

Next an auger punches a hole for a light base...

Or a ground rod or two is driven.

BTW, hereabouts, Ufers are required. Ground rods are limited to dinky temp Services.

Plan B is a Ground Ring. ( 3/0 is the norm )

Last edited by telsa; 04-02-2017 at 03:58 PM.
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