I'm gathering materials to install a subpanel in my garage. Have 200 amp
service, don't electric heat, or any really large loads. Nothing bigger
than a electric clothes dryer or electric oven. Planning on 100 amp
breaker in main panel, via 70 feet of 100 amp alum service entrance
cable to a 100 amp main lug sub panel in the garage.
Won't need too many circuits in garage, but need a 50 amp outlet for my
MIG, some lighting, some outlets, a heater, and a large air compressor.
Currently only have a single 30 amp circuit...
Anyway, my question is about grounding - how do I need to ground the sub
panel? Do I install a grounding rod for the sub panel, or run copper
ground back to the main panel? possibly both?
--
Marc
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