Dave,
One thing you have to be aware of, is the power dissipation at such a low resistance in the circuit.
With 120V flowing through your 1 ohm resistor, you are dissipating 14.4kW of heat.
(P=V2/R)
Question is, are breakers required to be tested to this degree?.
[Linked Image]
{Message edited to fix up formula}



[This message has been edited by Trumpy (edited 01-17-2005).]