Ground rods in sidewalk

[Njonescontracting]

Just replaced a panel today and without even thinking I picked up 2 ground rods yesterday. All 4 sides of the house are about a 2ft sidewalk. Currently just bonded at copper water entrance. Question is can I put my ground rods in the sidewalk? I couldn't find anything in the code saying no. But just figured I would double check with you guys. Thanks

 

[Hv&Lv]

Just replaced a panel today and without even thinking I picked up 2 ground rods yesterday. All 4 sides of the house are about a 2ft sidewalk. Currently just bonded at copper water entrance. Question is can I put my ground rods in the sidewalk? I couldn't find anything in the code saying no. But just figured I would double check with you guys. Thanks

??
Existing sidewalks??

 

[Njonescontracting]

??
Existing sidewalks??

Yes

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[Njonescontracting]

Yes

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100 year old sidewalks to be exact

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[Little Bill]

Just replaced a panel today and without even thinking I picked up 2 ground rods yesterday. All 4 sides of the house are about a 2ft sidewalk. Currently just bonded at copper water entrance. Question is can I put my ground rods in the sidewalk? I couldn't find anything in the code saying no. But just figured I would double check with you guys. Thanks

Why are you adding ground rods for just a panel change?

 

[Hv&Lv]

Why are you adding ground rods for just a panel change?

I’m guessing there is probably not enough or non existent grounding now...

 

[Hv&Lv]

Yes

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Would you really want to drill into a sidewalk to drive ground rods and add a tripping hazard?

 

[infinity]

The rods need to be 8' into the earth so your hole in the sidewalk need to be large enough so that they can be pounded even with or below the surface of the earth. Then you'll need to install the GEC and acorn clamp.

 

[LarryFine]

Yes, you may. Make the first inch or two large enough to bury the acorn clamp after inspection, and if you can't get close to the wall, cut a slit for the GEC.

 

[Njonescontracting]

Would you really want to drill into a sidewalk to drive ground rods and add a tripping hazard?

Absolutely not. But all I have right now is to water line.

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[Njonescontracting]

I’m guessing there is probably not enough or non existent grounding now...

Only to water service currently.

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[infinity]

I would rather do what Larry said, slot the sidewalk enough to concrete in the GEC then put the rods in the dirt.

 

[Njonescontracting]

Now that I look back on it. I should only need 1 ground rod. But still does not change the fact that it would be in the sidewalk.

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[infinity]

Now that I look back on it. I should only need 1 ground rod. But still does not change the fact that it would be in the sidewalk.

NEC requires two rods unless you can prove that the single rod has a resistance of 25Ω or less.

 

[roger]

Why not answer Little Bills question?

Roger

 

[James L]

Sometimes you have no choice, and you have to put it (them) in a sidewalk, parking lot, etc.

I try to keep them within a foot of the building so nobody will trip. I just drill a 1" hole, and drive them to where the acorn sits on top. Never, ever had any problems from an inspector

 

[hillbilly1]

The rods need to be 8' into the earth so your hole in the sidewalk need to be large enough so that they can be pounded even with or below the surface of the earth. Then you'll need to install the GEC and acorn clamp.

Or use a 10’ rod! LOL!

 

[Njonescontracting]

Why not answer Little Bills question?

Roger

Currently no GEC

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[James L]

Or use a 10’ rod! LOL!

I thought the same thing, if it's a big sticking point

 

[Njonescontracting]

I thought the same thing, if it's a big sticking point

Was planning on 10' rods anyway.

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