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Old 06-08-2010
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I agree with Bill. I would only use 16 ga for a LED only run, 14 ga for normal lighting and 12 ga or larger for higher draw items like pumps. 14 ga is normally protected with a 15 amp breaker which is less than the ampacity of 14 ga and not less than the lights, etc on the circuit.
Except for sensitive electronics, you should always be fusing for the wire. The purpose of the fuse is to be sacrificial before the wire burns. Some electronics require small fuses in line.
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