ground

[enireh]

if the home is serviced with plastic pipe for the water, then the ground rod and rebar in the slab is sufficient?

 

[infinity]

If by "ground" you mean grounding electrode then all that you need is the CEE if the rebar qualifies as an electrode (it must be in the footing). The ground rods are not required.

 

[enireh]

ground

if there is no rebar in a slab is the ground rod sufficient? if the water pipe is plastic

 

[infinity]

if there is no rebar in a slab is the ground rod sufficient? if the water pipe is plastic

Yes, if there is no CEE (meaning that there is no rebar in the footing or no footing) then you would need one ground rod at 25 ohms or less or two ground rods.

 

[marmathsen]

If by "ground" you mean grounding electrode then all that you need is the CEE if the rebar qualifies as an electrode (it must be in the footing). The ground rods are not required.

Yes. We follow this method all the time.

But don't forget to setup an intersysem bond. Without having an exposed wire run outside to the ground rods the Telcos wouldn't have anywhere to tie in their grounding wire.

Rob

Sent from my Pixel XL using Tapatalk

 

[Dennis Alwon]

If there is no rebar you could run 20' of #4 in the footing and avoid the ground rods.

 

[Little Bill]

If there is no rebar you could run 20' of #4 in the footing and avoid the ground rods.

When you do this, how do you usually bring it up and how do you keep it accessible?

 

[Dennis Alwon]

No different than when you use rebar. There is no connection if you leave the wire long enough to reach the meter or service panel. I never splice the Ufer.

 

[infinity]

No different than when you use rebar. There is no connection if you leave the wire long enough to reach the meter or service panel. I never splice the Ufer.

That's how I would do it also unless the copper thieves get to it.

 

[Dennis Alwon]

That's how I would do it also unless the copper thieves get to it.

I usually dig a hole, roll up the excess and bury the copper in it. Hasn't been stolen yet.

 

[Little Bill]

No different than when you use rebar. There is no connection if you leave the wire long enough to reach the meter or service panel. I never splice the Ufer.

I was picturing you bringing it up out of the footer through the bottom plate or basement. Bringing it to the meter is way better.

 

[Frank DuVal]

Hmm, we do not bring the #4 ground to the meter base up here. Always the service entrance panel. Well, at least I have never seen it....

Burying it under the slab before the slab is poured will keep it from being stolen for sure, but difficult to connect to panel later.