Quote:
Originally Posted by carambola
if i'm not mistaken, the detached building has to be grounded there, not bonded to the separate structure. and if you are going to feed off the house the wire needs to be upsized
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Which wire needs to be upsized? The one from the transformer to the house, or the proposed one from the house to the garage? I am concerned that if the wire from the transformer to the house was sized for the 200 amp house panel, adding another 100 amps of draw to the garage would overheat it.
A possibility is dropping the service to the garage to as low as 60 amps. It's a long shot that I will ever move my welder or my big air compressor to this shop, so it may never have anything bigger than a 1 hp air compressor and lights in it.