mhanson
Member
- Location
- Redwood City, CA
- Occupation
- General Journeyman Electrician
Good day all.
Our company has recently installed a 400amp 1ph resi. Service.
While on site I noticed a #3 cu GEC had been installed from the service entrance to the UFER Grounding electrode.
I was under the impression this is to be sized per
T 250.66 ( 1/0 cu )
In looking over 250.66 (B) it looks as though we are not required to be larger than #4AWG cu.
Am I reading this correctly?
Thank you
Michael Hanson
Our company has recently installed a 400amp 1ph resi. Service.
While on site I noticed a #3 cu GEC had been installed from the service entrance to the UFER Grounding electrode.
I was under the impression this is to be sized per
T 250.66 ( 1/0 cu )
In looking over 250.66 (B) it looks as though we are not required to be larger than #4AWG cu.
Am I reading this correctly?
Thank you
Michael Hanson