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08-21-2015, 11:27 AM #1
An issue installing grounding rods-HITTING BEDROCK
Hello Ladies and Gentlemen,
I'm new to the site and have a problem that I was hoping I could get an answer on. I was trying to drive in the ground two 8 foot grounding rods when I hit bedrock. I was only able to get about 3 foot in before this happened and I have moved ALL around the area and get the same results. Some years ago it's seems like I read somewhere that if you can go "horizontal" with your grounding rods so is there anyone out there that can me some insight on this ?
I appreciate any and all advice.
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08-21-2015, 11:47 AM #2
Hello steve griffin,
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08-21-2015, 04:02 PM #3
Re: An issue installing grounding rods-HITTING BEDROCK
If you hit rock, you are permitted to drive the ground rods in at an angle not exceeding 45 degrees from vertical.
However, if the ground rod hits rock at 45 degrees, then the ground rods are permitted to be buried in a trench which is at least 30" deep.
You still need to keep the ground rods at least 6 feet apart (MINIMUM) at the closest point between the two rods - I would recommend digging a long trench, about 25 feet long, lay one 8 foot rod in near one end, leave 8 feet between the rods (6 feet is minimum), then lay in the other rod near the other end.
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08-24-2015, 12:11 PM #4
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