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Posted by hallerb@aol.com on May 7, 2007, 12:33 pm
On May 7, 12:29=EF=BF=BDpm, Big Giant Head
> On branch circuits the size of the wire and type of circuit determines the
> breaker size but what determines the size of the main or combination of
> mains? =A0Can it be as large as the panel is rated for or must it match t=
he
> size of the utility's drop?
>
> We have an old panel with two mains, one is a double 50A feeding the rest
> of the panel. =A0The other is a double 30A feeding the dryer outlet direc=
tly. =A0
> The town now mandates 100A and I think homes get inspected when sold. =A0
> Rather than replace the whole panel I could replace main #1 with a double
> 70A (if available) OR maybe better would be to replace main #2 with a
> double 50A (or higher) and have it feed a small subpanel in which I would
> put a double 30A for the dryer and maybe throw in a few others as well. =
=A0
> That's within the rating of the main panel but not sure about the utility
> drop.
Main breaker must match main service drop and meter can and panel.
With such low ratings how is the physical condition of your drop?
I have a friend epoxying his drop to keep the outer jacket together
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