Thread
:
Connecting Extension Cords
View Single Post
#
20
Posted to alt.home.repair
Larry Caldwell
external usenet poster
Posts: 176
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.
--
For email, replace firstnamelastinitial
with my first name and last initial.
Reply With Quote
Larry Caldwell
View Public Profile
Find all posts by Larry Caldwell