Solar Array Grounding

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nosparks1

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2008 NEC Article 690.47 (D), Is the article stating that "Additional" electrodes are required or stating the requirements "IF" they are installed.
 
nosparks1 said:
2008 NEC Article 690.47 (D), Is the article stating that "Additional" electrodes are required or stating the requirements "IF" they are installed.
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It's a "SHALL", so you have to do it.

The confusion is that a pole or ground mount array may already have enough metal that is in contact with dirt to count as a grounding electrode, in which case the second paragraph applies.
 
Exception 1. is interesting. I'm not sure I know what this would apply to.

Exception No. 1: Array grounding electrode(s) shall not be required where the load served by the array is integral with the array.
 
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