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Re: off topic question repowering

 

¿ªÔÆÌåÓý

Hi Gang:

The other important fact is the voltage drop for a given amperage is the same no matter what voltage you start at. So a 3 volt drop at 12 volt is a bigger problem than at 120 volts.

So 18AWG wire can pass 1100 watts at 110 volts, but 2200 watts at 220 volts.

Also remember we are talking about a motor for Unimat lathe, that has the rigidity to take maybe a 200 watt cut.

Carl.

According to the NEC information that I found, 18AWG fixture wire has an allowable ampacity of 10 amps, and the allowable ampacity of 16AWG fixture wire is 13 amps.

Doing the voltage drop calculations, using the maximum allowable voltage drop of 3%, 110 volts supply voltage, and your load of 6 amps - the maximum length of the 18AWG fixture wire is 34'.? Any longer and you exceed the 3% allowable drop.? With 16AWG and the same conditions, the maximum length is 55'.

Don?

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