Grounding electrode conductor question.

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Dave G

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When using a #2 ring with 6 ground rods attached for a main grounding electrode does the main grounding electrode conductor need to be larger than #2 ? This is for an 800 amp service fed with parallel 500 kcmils.
 
Re: Grounding electrode conductor question.

The GEC is not required to be larger than the grounding ring. Look at 250.66(C).
 
Re: Grounding electrode conductor question.

No, but I have seen engineers design ground rings with the GEC larger than #2.
 
Re: Grounding electrode conductor question.

Originally posted by paul:
No, but I have seen engineers design ground rings with the GEC larger than #2.
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You're right. They can design anything they want as long as it meets the code minimum which the NEC is.
 
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