230 single phase
02-19-2007, 12:36 AM
#32
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Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 230 single phase
Originally Posted by bigmike92363
the only problem with that is that they do not make a twin 30 amp breaker and there called mini's
You ever hear the trick to tell whether a Square-D breaker is good or burned out? Set the breaker to the "On" position, and then smack it against the palm of your hand. A good Square-D will trip on impact, a burned out one won't. Trick works on both the standard Square-D and the Homeline version.
Don't bother trying it on other brands though...I've tried Cutler/Hammer, Federal Pacifics, GE's, Westinghouse's, most every major brand out there and it doesn't work...Square-D only :P
02-19-2007, 05:16 PM
#35
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Join Date: Jan 2003
Posts: 4,438
Re: 230 single phase
Originally Posted by slo_crx1
WHOOOAAAAA DUDDDDE...please do not give electrical info out anymore...you're going to end up with someone burning their house down 
220v is usually considered single phase for residential use, meaning 2 hot legs rated at 110v and one ground. In the US power is distributed to your house via 220v this way from your utility pole. Once it hits your meter base, it creates a neutral either through the panel, or via a disconnect if your house panel is a certain distance from the point of entry according to the NEC rules. Your panel is split into 2 sides, or legs, with each leg rated at 110v. When combined with a 2 pole breaker, you now have a single phase, 220v circuit. Single phase refers to the way the ac wave performs...a single line that oscillates at 60hz, positive voltage and then negative voltage of the same value (although technicly all electricity is considered negative in its flow, positive is more widely used as a base value). Now having given you a background in electricty, let's move on to your application.
According to NEC codebook for 2007, the amperage load placed on any breaker cannot exceed 75% of the breaker's rating. Therefore, if the the welder requires roughly 22 amps to perform it's task, then you would need a breaker rated at 30amps. To achieve 220v status, it means you would need a 2 pole breaker, 30 amp rating. Minimum wire size for 30 amp breakers is a #10 wire for copper, #8 for aluminum. So that being said, a #10/3 wire is minimum requirement for your application...2 hot legs @ 110v (black and red wires), 1 neutral leg (white wire), and 1 ground (bare copper wire). The plug you need will more than likely be for a dryer application setup for both a neutral and ground.
Sometimes it pays to have over 10 years in the electrical and electronics industry, although after this week I hang my electrician's belt up for good to work as an electronics technician for the government full time. Ask me any questions you might have if I confused you 
220v is usually considered single phase for residential use, meaning 2 hot legs rated at 110v and one ground. In the US power is distributed to your house via 220v this way from your utility pole. Once it hits your meter base, it creates a neutral either through the panel, or via a disconnect if your house panel is a certain distance from the point of entry according to the NEC rules. Your panel is split into 2 sides, or legs, with each leg rated at 110v. When combined with a 2 pole breaker, you now have a single phase, 220v circuit. Single phase refers to the way the ac wave performs...a single line that oscillates at 60hz, positive voltage and then negative voltage of the same value (although technicly all electricity is considered negative in its flow, positive is more widely used as a base value). Now having given you a background in electricty, let's move on to your application.
According to NEC codebook for 2007, the amperage load placed on any breaker cannot exceed 75% of the breaker's rating. Therefore, if the the welder requires roughly 22 amps to perform it's task, then you would need a breaker rated at 30amps. To achieve 220v status, it means you would need a 2 pole breaker, 30 amp rating. Minimum wire size for 30 amp breakers is a #10 wire for copper, #8 for aluminum. So that being said, a #10/3 wire is minimum requirement for your application...2 hot legs @ 110v (black and red wires), 1 neutral leg (white wire), and 1 ground (bare copper wire). The plug you need will more than likely be for a dryer application setup for both a neutral and ground.
Sometimes it pays to have over 10 years in the electrical and electronics industry, although after this week I hang my electrician's belt up for good to work as an electronics technician for the government full time.
Ask me any questions you might have if I confused you
02-19-2007, 05:24 PM
#36
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Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 230 single phase
Originally Posted by accordepicenter
nice, i couldnt ever find a halfway decent job as an electronic tech ever. Nobody around here even offers the courses for it anyway.
02-19-2007, 09:11 PM
#37
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Join Date: Mar 2003
Posts: 21,479
Re: 230 single phase
Originally Posted by bigmike92363
your gonna need a pice if 10/3 a twin 30 amp breaker
Originally Posted by bigmike92363
they do not make a twin 30 amp breaker and there called mini's
Originally Posted by bigmike92363
twin and two pole are the same thing
:P
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02-19-2007, 10:37 PM
#38
0.5 BAR
Join Date: Sep 2006
Posts: 120
Re: 230 single phase
Originally Posted by slo_crx1
WHOOOAAAAA DUDDDDE...please do not give electrical info out anymore...you're going to end up with someone burning their house down
220v is usually considered single phase for residential use, meaning 2 hot legs rated at 110v and one ground. In the US power is distributed to your house via 220v this way from your utility pole. Once it hits your meter base, it creates a neutral either through the panel, or via a disconnect if your house panel is a certain distance from the point of entry according to the NEC rules. Your panel is split into 2 sides, or legs, with each leg rated at 110v. When combined with a 2 pole breaker, you now have a single phase, 220v circuit. Single phase refers to the way the ac wave performs...a single line that oscillates at 60hz, positive voltage and then negative voltage of the same value (although technicly all electricity is considered negative in its flow, positive is more widely used as a base value). Now having given you a background in electricty, let's move on to your application.
According to NEC codebook for 2007, the amperage load placed on any breaker cannot exceed 75% of the breaker's rating. Therefore, if the the welder requires roughly 22 amps to perform it's task, then you would need a breaker rated at 30amps. To achieve 220v status, it means you would need a 2 pole breaker, 30 amp rating. Minimum wire size for 30 amp breakers is a #10 wire for copper, #8 for aluminum. So that being said, a #10/3 wire is minimum requirement for your application...2 hot legs @ 110v (black and red wires), 1 neutral leg (white wire), and 1 ground (bare copper wire). The plug you need will more than likely be for a dryer application setup for both a neutral and ground.
Sometimes it pays to have over 10 years in the electrical and electronics industry, although after this week I hang my electrician's belt up for good to work as an electronics technician for the government full time. Ask me any questions you might have if I confused you
220v is usually considered single phase for residential use, meaning 2 hot legs rated at 110v and one ground. In the US power is distributed to your house via 220v this way from your utility pole. Once it hits your meter base, it creates a neutral either through the panel, or via a disconnect if your house panel is a certain distance from the point of entry according to the NEC rules. Your panel is split into 2 sides, or legs, with each leg rated at 110v. When combined with a 2 pole breaker, you now have a single phase, 220v circuit. Single phase refers to the way the ac wave performs...a single line that oscillates at 60hz, positive voltage and then negative voltage of the same value (although technicly all electricity is considered negative in its flow, positive is more widely used as a base value). Now having given you a background in electricty, let's move on to your application.
According to NEC codebook for 2007, the amperage load placed on any breaker cannot exceed 75% of the breaker's rating. Therefore, if the the welder requires roughly 22 amps to perform it's task, then you would need a breaker rated at 30amps. To achieve 220v status, it means you would need a 2 pole breaker, 30 amp rating. Minimum wire size for 30 amp breakers is a #10 wire for copper, #8 for aluminum. So that being said, a #10/3 wire is minimum requirement for your application...2 hot legs @ 110v (black and red wires), 1 neutral leg (white wire), and 1 ground (bare copper wire). The plug you need will more than likely be for a dryer application setup for both a neutral and ground.
Sometimes it pays to have over 10 years in the electrical and electronics industry, although after this week I hang my electrician's belt up for good to work as an electronics technician for the government full time.
Ask me any questions you might have if I confused you
02-21-2007, 04:39 PM
#39
0.5 BAR
Join Date: Nov 2006
Location: Fairborn Oh
Posts: 144
Re: 230 single phase
Originally Posted by sharkytm
----. My electrician is wrong. Thats how my house is wired, and he said its up to code. My machine pulls 18A, I'm running it on a 20A breaker, and 14-3 wire. My sincere apologies, now I'm gonna have to find another person to check my setup. Consider me schooled. :1
AWG AMPS
14 15
12 20
10 30
8 40
02-23-2007, 10:36 PM
#40
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: 230 single phase
Originally Posted by clwtwizted
Just because it works does not mean its correct. Im a union electrian I work at honda in troy ohio. ---- ton of welders all you will need is a 10-2 romex or Mc depending on the shops specs. A welder does not need a nuetral. inside the welder it goes straigt to a transformer(only one voltage is needed on the high side/ no need for a nuetral) which has several taps to get the different amperages/heat ranges. You will need a 2pole 30 amp breaker and a 30 amp 240 3 wire plug should look like -.-
AWG AMPS
14 15
12 20
10 30
8 40
AWG AMPS
14 15
12 20
10 30
8 40
