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Larry Caldwell Larry Caldwell is offline
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Default Connecting Extension Cords

In article ,
(Doug Miller) says...
In article , Charlie Morgan wrote:

Unless the device you need to power draws very little power and doesn't care
about voltage, you really should get a proper 10/3 100 foot extension cord.
Just
the 50 foot 14/3 is going to have significant losses from end to end.


Ummmmm.... 14ga copper wire has a resistance of 2.58 milliohms per foot, or
129 milliohms in fifty feet. Just how much of a loss do you suppose that's
going to cause?


Power=I^2*R. R=129*2, or 0.258 ohm. At 15 amps, the power loss over 50
feet is 58 watts.

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