electrode conductor

[soncarbes]

if i have a 400 Amp service using 500 MCM what size grounding electrode conductor is required

 

[roger]

Have you looked at 250.66? Read the whole article not just the Table

Roger

 

[raider1]

What electrodes are you using?

As Roger pointed out have you read 250.66?

Chris

 

[roger]

These appear to be study questions and we will not just give you the answers, we will help you find the answers but you will have to do the work yourself.

Roger

 

[infinity]

Although you mention 500 kcmil and a 400 amp service keep in mind that the service size is irrelevant when using table 250.66.