Grounding Electrode Conductor Size

[dvcraven052256]

If I have a ground rod that is my sole purpose for grounding an electrical service is the GEC sized per 250.66. I know the code says if connecting to an rod or pipe the minimum size can be #6 copper.

 

[LarryFine]

The GEC to a rod or other made electrode need not be larger than #6 cu.

 

[infinity]

The GEC to a rod or other made electrode need not be larger than #6 cu.

Isn't a ground ring a made electrode? #2 minimum GEC?

 

[Dennis Alwon]

This is the enhanced view from the 2023 nec

 

[LarryFine]

Isn't a ground ring a made electrode? #2 minimum GEC?

Interestingly, yes, yet the GEC to it can be #4, per Dennis's pic.

I think of rods, plates, etc., when saying made electrodes.

 

[infinity]

Interestingly, yes, yet the GEC to it can be #4, per Dennis's pic.

That's correct based on T250.66 for the GEC. The GEC to the ground ring is not required to be larger than the conductor that makes the electrode but can be smaller.