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Author Topic: Wire size & run length  (Read 905 times)
jerryg328
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Posts: 3
« on: September 04, 2010, 02:06:28 PM »
The chart at   http://www.wireityourself.com/wire_sizes.html   has a note that seems to indicate the listed wire sizes are good for runs up to 300 feet.  Is that correct?  Some sites have suggested increasing wire size when runs go over 50 feet, and again over 100feet.  Thoughts please.  I'm referring to standard residential 110/220 wiring.
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JP
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Posts: 238
« Reply #1 on: September 04, 2010, 02:11:28 PM »
What exactly what you are running the wire for?
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jerryg328
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Posts: 3
« Reply #2 on: September 04, 2010, 07:08:19 PM »
I'm wiring a new house.....so everything.  Some of my home runs are just over 100 feet, plus another 30-40 feet for the branch circuits.  60-70 feet to electric range/oven, will 6/3 NM do lit? 80 feet to dryer and water heater.
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JP
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« Reply #3 on: September 04, 2010, 07:11:59 PM »
There is no need to increase the wire size at all, voltage drop will not be an issue as long as you stay under 300 feet.
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jerryg328
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Posts: 3
« Reply #4 on: September 05, 2010, 03:57:13 PM »
Great.  Thanks.  This will save some $.
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