220 wiring


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Old 02-28-04, 09:04 AM
neo
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220 wiring

I'm working on a project and want to know if you can twist two wires (the red and the black) to get 220v to one terminal, with the other two terminals being neutral and ground?
 
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Old 02-28-04, 09:14 AM
J
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If you twist the red and black together, it will be very, very exciting -- the kind of excitement that you definitely don't need.

The answer to your question is "no".

I assume that you are trying to use a European appliance in North America?
 
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Old 02-28-04, 09:18 AM
neo
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Yes I am trying to wire something for use here in the states. So how do I get this wired so that I use this in my dryer outlet?
 
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Old 02-28-04, 09:24 AM
J
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I don't generally like to see North American installations of appliances designed for use in Europe. There's no problem with getting it to work--that's easy. The question is always how safe it is. The only way to get 240 volts in the U.S. is with neither wire at ground potential. The European engineer who designed the appliance knew that one side would be at ground potential. Who knows how this assumption influenced his safety design? It's also never been safety tested when installed in this manner.
 
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Old 02-28-04, 09:39 AM
neo
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so I just threw $320 on a mig welder down the drain? I guess I just figured that we have 220v mig welders here in the states so when I bought it there I could use it back home. Why can't it run off the dryer outlet? The welder is 230v 50/60 hz 13A The dryer outlet is the same and it is rated at 30A. I was just curious how is a 3 prong outlet was wired to give you 230v at one terminal? Do U.S. mig welders combine the voltages internally?
 
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Old 02-28-04, 10:01 AM
J
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In U.S. residences, you get 240 volts between the two hots (which is what an electric clothes dryer uses for the heating element), but you only get 120 volts from either hot to ground. There is no way in a U.S. residence to get 240 volts between a hot and ground as is common in Europe (without a transformer).
 
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Old 02-28-04, 10:03 AM
neo
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well thanks for preventing me from getting a shocking surprise! I suppose I'll try and sell it on ebay and get a 110 welder for use here in the states.

Thanks again
 
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Old 02-28-04, 10:10 AM
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You don't necessarily need a 110 welder. You just need a 240-volt welder designed for use in North America.
 
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Old 02-28-04, 12:40 PM
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John, on another forum we found out that this welder is rated 50/60hz and is UL listed. 220 volt/13 amp input.

We also determined he cannot use his existing dryer receptacle, obviousy to you and I.

We came to the conclusion that he would call an electrician to intall the correct 20 amp/250 volt receptacle for his welder and he would replace the plug to match the correct receptacle.

I really am puzzled at what he is trying to piece together to make this work.

If he wants to do this correctly we will help as much as possible. If he want to cob it together just to make it work I have no advice.
 
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Old 02-28-04, 03:43 PM
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My initial remarks stated the assumption that this fixture was designed for use in Europe. This assumption arose from what he stated he wanted to do in the first post. If the fixture was designed for use in North America, then what he said he wanted to do in the first post would make no sense.

Later remarks, especially that "50/60 hz" comment, suggest that this welder might be designed for use on both continents.

There are too many unknowns here to say much for sure, but I think you're on to something Speedy.
 
 

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