footer grounding

[steven baker]

if you have a 400 amp service and the olny grounding method is a footer ground what size ground do you need.

 

[chris kennedy]

if you have a 400 amp service and the olny grounding method is a footer ground what size ground do you need.

250.66(B).

I see your an Inspector. Is this a trick question?:smile:

Welcome to the forum.

 

[stickboy1375]

I agree with Chris, no larger than what is stated...

 

[iwire]

if you have a 400 amp service and the olny grounding method is a footer ground what size ground do you need.

400 amp or 4000 amp service, the largest conductor size required to a concrete encased electrode will be a 4 AWG CU even if that is the only electrode available.

 

[Dennis Alwon]

if you have a 400 amp service and the olny grounding method is a footer ground what size ground do you need.

It would depend on your how your ervice is installed. Generally it is as simple as T250.66 (#2 copper) but Note #2 can come into play

Edit: Sorry I was thinking water pipes.

Ground rods #6 Ufer #4

 

[mistermudd]

Footer ground. That is a new one for me. I see a lot of different terms from around the country on this forum. We are talking about an ufer or concrete encased electrode, right?

 

[infinity]

Footer ground. That is a new one for me. I see a lot of different terms from around the country on this forum. We are talking about an ufer or concrete encased electrode, right?

Yes, a footer or footing ground is a CEE.