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<font size=3>Dick:<br><br>
Regardless, the code requires that all portions of the circuit
accommodate the sum of the over current devices supplying the
circuit. The citation is below.<br><br>
I am not defending the code, I am telling you what I believe it
says. You don't need to sell your view point to me, you need to
sell it your local building officials. My goal is to interpret the
code such that my designs are unassailable by building officials. I
don't want unpleasant surprises after I have signed a contract and begun
work for a fixed price.<br><br>
<i>690.64(B)(2) The sum of the ampere ratings of overcurrent devices in
circuits supplying power to a busbar or conductor shall not exceed the
rating of the busbar or conductor. (2002). <br><br>
</i>William Miller<br><br>
<br>
At 01:15 PM 8/2/2009, you wrote:<br>
<blockquote type=cite class=cite cite>Wlliam,<br><br>
If there were to be a short circuit in the feeder or the main service
panel (<br>
the one with no extra breaker spaces ), the solar's maximum 50 amp
contribution<br>
would be about the last thing to be concerned about. A short is going to
result<br>
in perhaps 1000s of amps coming from the grid into the short. The service
100<br>
amp breaker will trip immediately and clear the fault. The inverter will
lose<br>
the grid and drop offline. End of story.<br><br>
Dick<br><br>
--- You wrote:</font></blockquote></body>
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