Can anyone tell me the maximum distance one can set the service panel
from the transformer for a residential hook-up? I would like to use a
200 amp panel for the house and run a sub-panel to the garage that
would have a 200 amp panel as well.
It all depends on the total demand load, the equipment being used (A/C size
and large motors), the wire size, and the allowable percentage voltage drop
and flicker. Ask your utility company, they'll tell you how far they can
Fwiw, besides distance, around here 200A is typically one service, 400A
would be equivalent to two services or, heavier gauge wiring (twice
the typical) may be required to install a 400A service ... if the
transforner is rated to handle it... around here. There's no way around
it ... you'll just have to call your local provider.
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