The line will be underground in conduit supplied directly from the meter.
2006-07-14 03:08:25 · 9 answers · asked by Anonymous in Home & Garden ➔ Do It Yourself (DIY)
The first answer is 100% incorrect and using this size wire will start a fire. #14 AWG is rated for 15 amps and #12 AWG is rated for 20 amps.
You size your 120/240 volt, 3-wire, single-phase dwelling services and feeders according to NEC table 310.15(B)(6). For a 200 amp service, the correct size is 2/0 copper or 4/0 aluminum. However, you will get voltage drop at 125 feet. So, for a 250 foot run you need to upsize your wire to 4/0 copper or 300 kcMil aluminum.
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2006-07-14 03:41:30 · answer #1 · answered by gilchristelectric 3 · 4⤊ 0⤋
Depends if it is copper or aluminum on what size to use. Any supplier has charts. One thing to remember about wire: The bigger the better, especially when the distance is greater from the power supply to the load because of resistance inherent in the wire itself-(voltage drop). You may need a larger size though a smaller size is rated at 200 amps. Sorry I do not have a chart here to give you the exact answer, but 250 ft. is a long enough distance that this may be a factor. Lastly, underground conduit is usually PVC type and has no magnetic properties and should not be a concern. Underground feeds can be "direct burial" wire with or without conduit if rated for direct burial, but should be in conduit either way where the cable is above ground and where it enters the ground.
2006-07-14 03:30:10 · answer #2 · answered by Rodger G 2 · 0⤊ 0⤋
Since it will be buried in Conduit Yu still need to check with Local Code officials. the Frostline in your area is_____? How deep? Will there be any vehicle rolling over the line? Will you expect inclement weather more than 3 months per year? How many junction boxes will be required to 'pull' the line thru 250' of ___conduit? will you "pull' by hand or use a machine-tool? Yeah a 14 gauge may do for one day of service, better a 0 gauge if you need it more permanent! When you go to buy this ask the customer service rep about insulation to use in your case!
2006-07-14 03:45:09 · answer #3 · answered by K9 4 · 0⤊ 0⤋
You need very large wire..0 or 00 ...200 amps can feed a whole house with electric heat
2006-07-14 03:27:55 · answer #4 · answered by dwh12345 5 · 0⤊ 0⤋
Go with 000 copper. That is good for 200 amps. The voltage drop for that length will only be around 6 or 7 volts. So you will be fine.
2006-07-15 01:46:13 · answer #5 · answered by Tommy M 3 · 0⤊ 0⤋
NOT AN ELECTRICIAN, neither do i have charts handy, but 150 amps is a BIG LOAD and should not be run on 14, 12, or even 10guage wire. i do my own wiring but not without consulting load charts or a qualified electrician!!
2006-07-14 14:38:31 · answer #6 · answered by ? 3 · 0⤊ 0⤋
its been to long since i did any electric work,i know at that distances,you better use a good guage wire,for a current really drops over a long haul,your local electric company should have some guide lines to go by to give you a idea,
2006-07-14 03:14:23 · answer #7 · answered by ? 4 · 0⤊ 0⤋
Mostly, horrible information in these posts. Consult a master electrician and the jurisdiction having authority!
2014-02-11 12:19:05 · answer #8 · answered by Pro Fit Installation 1 · 0⤊ 0⤋
14 guage will do. But 12 guage is better.
2006-07-14 03:12:49 · answer #9 · answered by Nightrider 7 · 0⤊ 3⤋