If a cable is long enough to have enough impedance to cause its breaker not to clear a fault, is it also too long (for the gauge of wire used) for acceptable amounts of voltage drop when it's used normally? Say #14 loaded by a 13A load at the far end and the voltage drop seen by the load excessive? If you upsize the wire to get acceptable voltage drop, would this excessive impedance issue go away? Or are there issues involved if ferrious conduit or such us correctly used?
