Hello Wrenches,
Where is the requirement that states that modules need to be grounded
by means of Weeb clips, or grounded by wires connected to the
modules? Reviewing the code, I can't find the requirement in Section in 690.
If the issue is that the anodized aluminum frame can build up a
coating, therefore must have additional grounding that penetrates
that coating, it seems that star washers should be effective. In a
typical setup, a lug might be bolted to a module, with a star washer
between the frame and the lug. How is this going to be more
effective than having two modules bolted together with a star washer between?
Is this a UL requirement?
Thanks,
Drake
Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
740-448-7328
740-856-9648
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