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A thinner cable I am taking to mean less conductive material. There is a limit to the current carrying capacity of any circuit, so using a smaller cable will lower this current carrying capacity. In general, thinner cable will also have higher resistivity than thicker cable.

In house wiring, this could mean sizing down your circuit breakers to the appropriate level - perhaps 10 amps instead of 15 or 20.

In CT circuits, this would mean higher voltage rise on the secondary side, possibly causing CT saturation.

For Long feeds (say, between a house and a barn, 1/4 mile away, on relatively small guage wire), this could mean a significant voltage drop before you reach your load (where you wish to use the electricity).

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15y ago

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