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Got called out on a service upgrade in Denver and the inspector was right
I was swapping a 100 amp panel for a 200 amp at a house off Colfax. Had the main shut off, everything looked good. Inspector pointed at the grounding electrode conductor and said 'That's a #6, you need a #4 for this service now.' I argued for a minute but he pulled out the code book and showed me the table. Had to re-pull the whole ground wire. Now I double-check conductor sizing BEFORE I even order material. Anyone else get tripped up by a grounding rule change?
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thea_knight4mo ago
Well, at least you can say you got a personal code book tutorial from an inspector, which is the expensive version of continuing education. I swear those tables are written by someone who gets paid by the copper mining lobby, because #4 is a lot more money than #6. Next time I'll just bring a few extra inches of ground wire and offer to re-pull it on the spot, maybe save myself the walk of shame back to the truck.
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alexj994mo ago
Forget arguing with the book... inspectors always win. Seen that exact thing happen before.
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riley_ramirez814mo ago
Yeah but that table can be tricky, I've seen guys get away with the #6 on a 200 amp.
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