|
|
|
|
New Member
|
|
Feb 23, 2010, 08:47 AM
|
|
What size alluminum wire do I need to carry 100 amps for 300'max 220 v
220 volt max , mostly 110 a compressor , welder , tools , lights ,typical hobby garagel 350' panel to panel (from house to garage)
|
|
|
Uber Member
|
|
Feb 23, 2010, 08:52 AM
|
|
Need to know actual voltage. If you located in USA, then the voltage is 240 volts, not 220.
You title mentions 300 feet, then your post mentions 350 feet, which is it.
Need load in amps and/or watts for compressor, welder, lights.
Or you can go here:
Southwire - Delivers Power
And do you own sizing of the feeder.
|
|
|
New Member
|
|
Feb 23, 2010, 09:12 AM
|
|
350' panel to panel , I'm in Ohio, 240volt
Sorry new to this site , 350 ' in Ohio , and would like 100 amps back at the barn, need to know alluminum wire size and copper wire size so I can shop for wire
|
|
|
Uber Member
|
|
Feb 23, 2010, 09:21 AM
|
|
350' might be a bit long and you may have to go step up/step down transformer. Not sure.
Can you give a breakdown of the loads expected? Are the 120 V loads expected to be nearly balanced in the panel? Any motor loads?
|
|
|
Uber Member
|
|
Feb 23, 2010, 09:36 AM
|
|
<threads merged>
Use "Answer this question" to reply to thread. Don't start a new one.
|
|
|
New Member
|
|
Feb 23, 2010, 09:45 AM
|
|
Thank you ! 110 mostly , welder is 220/30amps , used once in a while ,110 grinder 110 furnace blower motor , 4 high output fluorescent lights , basic home garage
|
|
|
Junior Member
|
|
Feb 23, 2010, 05:39 PM
|
|
1/0 alum @ 100 amps @ 350' has a 5% voltage drop.
|
|
|
Uber Member
|
|
Feb 23, 2010, 05:42 PM
|
|
John, can you please show how you arrived at #1/0 Al ?
|
|
|
Junior Member
|
|
Feb 23, 2010, 07:11 PM
|
|
By pushing the wrong buttons . Right answer 3/0. Usually helps to push the right buttons! Sorry about that.
|
|
|
Uber Member
|
|
Feb 24, 2010, 05:37 AM
|
|
Somehow I arrive at #2/0, based on the variables you listed.
In any case, to answer this question, using readily available products, and allow for other unknowns, I woul recommend using #4/0 4 wire URD cable.
This is overkill, but I feel the best as this cable is widely used, readily available, inexpensive, and will give good performance.
Sure, smaller wire may work, due to lower loads, but I fell the best.
Special attention will be needed at both termination ends due to wire will not fit in panel and breaker lugs.
If Tony considers this cable, then we can help with how to connect at that point.
350 feet is a long way to deliver 120 and 240 volt power and be sure to allow all equipment to run properly and not be damaged by low voltage..
|
|
|
Uber Member
|
|
Feb 24, 2010, 06:54 PM
|
|
Somehow I arrived at 4/0 Aluminum not being overkill. At 350 ft and 100 A non-continuous and 240 V, I arrive at 2.9% or a 7V drop.
And, your actually good for a 50 A unbalanced load which can mean 50 A drawn from one leg and none from the other.
240 loads mean no neutral current is needed.
In the US residential distribution is 240/120. 220/110 has been long gone.
|
|
Question Tools |
Search this Question |
|
|
Add your answer here.
Check out some similar questions!
Adding stage lighting and amps to sound system. Wire size questions
[ 5 Answers ]
Hello. We are installing a new stage lighting system and some additional amplifiers to our sound system. The sound and lighting techs have asked for ten 40 amp circuits. I personally think this is too many circuits for what they are installing, but they want room for future expansion. If I am...
Cost to upgrade from 100 amps to 200 amps and ground
[ 4 Answers ]
StanFortyMan has made a lot of sense about my needs in a home with a 100 AMP Service.. I would like to upgrade to 200 amps.. with some ground sockets(or whatever this is called) and put in more sockets... The house is 1300 square feet... does anyone have a guestimate of costs??
Thanks,
Annie
10/2 wire to carry 220 v - panel attachment
[ 4 Answers ]
The HVAC guy will install the AC but I need to get 220 v to the compressor. The house was wired when it was built and I have a 10/2 wire running from the panel to a box in the furnace room. The black is loose in the panel and the white is attached to a common.
The panel has one open spot but I...
100 amp wire size
[ 3 Answers ]
I have a 150 amp service feeding a 100 amp main lug sub panel. I need to move the sub panel to another location during a remodel. My question is what size copper wire is needed to lengthin the panel feeds, including the ground. The total distance from the main is approx. 40 feet. Planning to use...
View more questions
Search
|