Wiring size?
#1
10-15-03, 02:51 PM
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Wiring size?
Hello guys, I hope all are well.
I built a barn about 150 feet from my house. I now want to run electric out to the barn, 220 line .
From the Control box at the house to the barn will be approximately 300 feet.
Will 10/3 be a sufficient wire size? I plan on using a table saw, drills, lights, etc.
Also, this wire (10/3) is $80.00 per 250 ft. spool! Is that a good price for underground cable of this size?
Changeling
I built a barn about 150 feet from my house. I now want to run electric out to the barn, 220 line .
From the Control box at the house to the barn will be approximately 300 feet.
Will 10/3 be a sufficient wire size? I plan on using a table saw, drills, lights, etc.
Also, this wire (10/3) is $80.00 per 250 ft. spool! Is that a good price for underground cable of this size?
Changeling
#3
10-15-03, 05:02 PM
Member
300 feet is a long ways. It seems unlikely that 10/3 will be big enough, but we need more discussion to be sure. Please address Ron's points.
Why is the panel 300 feet from the barn but the house is only 150 feet? Perhaps you can find a shorter way to the to the other side of the house.
Why is the panel 300 feet from the barn but the house is only 150 feet? Perhaps you can find a shorter way to the to the other side of the house.
#4
10-15-03, 05:36 PM
Again another long run to a small panel. We use number 2 alum URD, quad, cheap and good ampacity. I am not sure about a 40 but a 50 QO will accept the wire and from the jobber you can get this wire in one piece.
#5
10-16-03, 12:07 PM
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John, good catch! I think my brain was in it's stuck mode again!
The actual distance from the barn to the control box at the house will be about 200 feet, not 300.
I plan on having two overhead 4 tube fluorescent lights on and only one tool at a time, such as a drill press, table saw, or whatever. This is for homeowner use not commercial.
Changeling
The actual distance from the barn to the control box at the house will be about 200 feet, not 300.
I plan on having two overhead 4 tube fluorescent lights on and only one tool at a time, such as a drill press, table saw, or whatever. This is for homeowner use not commercial.
Changeling
#6
10-16-03, 01:05 PM
ok i did make a quick caluation load what you posted:
2 - 4 lamp floursecent lumaire (apx 230 watts each) 460 watts
i slected the larget motor is table saw that useally run 12to 15 amps running load and few other things might be on at the same time .. ok here is my figured
25 amp at 120 volt loads
200 feet in length
wire size is #4 copper
this is based on 2 % volt drop so i really suggest that use the sub feed box will be wise move here. but one question is how many circuits you will have for 120 volts outlets ??? and is the table saw is set up for 120 volts or can be rewired for 230 volts ?? bear in mind with this distance some motor don't like big voltage drop. if need more question feel free to ask us we can steer you right
merci, marc
2 - 4 lamp floursecent lumaire (apx 230 watts each) 460 watts
i slected the larget motor is table saw that useally run 12to 15 amps running load and few other things might be on at the same time .. ok here is my figured
25 amp at 120 volt loads
200 feet in length
wire size is #4 copper
this is based on 2 % volt drop so i really suggest that use the sub feed box will be wise move here. but one question is how many circuits you will have for 120 volts outlets ??? and is the table saw is set up for 120 volts or can be rewired for 230 volts ?? bear in mind with this distance some motor don't like big voltage drop. if need more question feel free to ask us we can steer you right
merci, marc
#7
10-16-03, 01:41 PM
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Frenchsparky you seem to know what you are talking about. However I am not that well versed in these things.
1. I don't know what a sub feed box means!
2. When you say a # 4 wire are you saying wire of a number 4 size instead of the 10/3
3. The table saw is set up for 110 like all of the items in the barn will be.
4. I was going to put in a 100 amp service box that has about 6 outlet lets I think.
5. I do have access to 220 fluorescent light fixtures. Is there an advantage in these over 110??
Please bear with me.
Changeling
1. I don't know what a sub feed box means!
2. When you say a # 4 wire are you saying wire of a number 4 size instead of the 10/3
3. The table saw is set up for 110 like all of the items in the barn will be.
4. I was going to put in a 100 amp service box that has about 6 outlet lets I think.
5. I do have access to 220 fluorescent light fixtures. Is there an advantage in these over 110??
Please bear with me.
Changeling
#8
10-16-03, 02:34 PM
First, what5 is the actual distance the wire is going to be? 150 ft to 300 is a huge factor. The lighting isnt a significant load and can be balanced on the other side of your general use recepts. Yes, that is what French was talking, another panel, main lug 6 spaces. Rewiring the saw motor to 240 would help its start up especially at considerable distance. I think I would stick with the 120V lights.
#9
10-16-03, 08:24 PM
ok the subfeed box mean smaller breaker box simuair to your main box in your house but smaller in size wise .
the reason i say #4 copper wire you have to understand the distance and i did check with # 10 wire the voltage drop will be too serve for the loads you listed .
220volts flourescent lights??? yeah they do make it but the cost is very high. i really recomonded to stay with 120 volts verison it is more common around here
there is other item it will get your atteion that the subfeed box you will end up use 4 wires ( 3- #4 and 1-#8bare grounding wire)
the cost of subfeed box is not very expensive but depending on your choose but get one with 6 spaces verison type they useally run less than 40 bucks or less and make sure it have grounding bar there too ( some box don't have it )
[ i did not incuding the price of breakers at all ]
make sure your 110 volts repectailes have gfci there
if need more question just drop a line here
merci marc
the reason i say #4 copper wire you have to understand the distance and i did check with # 10 wire the voltage drop will be too serve for the loads you listed .
220volts flourescent lights??? yeah they do make it but the cost is very high. i really recomonded to stay with 120 volts verison it is more common around here
there is other item it will get your atteion that the subfeed box you will end up use 4 wires ( 3- #4 and 1-#8bare grounding wire)
the cost of subfeed box is not very expensive but depending on your choose but get one with 6 spaces verison type they useally run less than 40 bucks or less and make sure it have grounding bar there too ( some box don't have it )
[ i did not incuding the price of breakers at all ]
make sure your 110 volts repectailes have gfci there
if need more question just drop a line here
merci marc
#10
10-17-03, 01:05 PM
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JN: Sorry, but the rules of the web site require me to delete posts that are off topic. Problems with the website should be handled via the "Contact Us" button at the bottom of each page. In general, electrical problems should be discussed in the forum rather than via private messages (unless the contents are indeed private).
Last edited by John Nelson; 10-17-03 at 01:29 PM.
