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post #1 of (permalink) Old 05-28-2004, 11:29 AM Thread Starter
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220 Volt question

I have made a fantastic discover !
The place that I rent is a duplex (sp?) And out lease is up on June 1. Some friends of mine are moving in next door.
My Jeep lab is a large open room that has doors that enter into ether apartment. We pay for elect, heat, and the upkeep of the Lab, it is part of my lease.
My firends a Jeepers, and they will use the lab. That is cool with me.
The people who lived next door before (last year) had a washer dryer in the room next to my lab!
My friends.... No washer dryer.
Chaaaa CHING !!
I finally have 220Volts in the Jeep Lab. My firends have aggreed to Me using the electricity. As a traid off for them being able to use the lab.

So now that I am finished expressing my excitment, my question is

How many amps is the standard 220 Volt breaker for a dryer? And how many amps are recamended for a 220 volt Mig?
(the welder probably won't be purchised right away, so I have not given any thought to what I am going to get (brand))

Thanks
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post #2 of (permalink) Old 05-28-2004, 01:25 PM
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Re: 220 Volt question

Most dryer outlets are set up for 30A. I've seen a few at 20A.

My welder is set up on a 50A breaker. Before I put in the new panel, I did use my dryer outlet...but never took the stick up past the 100 amperes setting. No fires, no melted wire, no tripping of the breaker.
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post #3 of (permalink) Old 05-28-2004, 01:39 PM
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Re: 220 Volt question

I dunno, but I do know I run my Miller 175 on my dryer outlet wide open and I have never had any problems other than having to listen to the wife complain when I forget to plug the dryer back in.
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post #4 of (permalink) Old 05-28-2004, 01:40 PM Thread Starter
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Re: 220 Volt question

Thanks for the reply.
How involved is it to change to a 40 or 50 amp breaker. Is it a simple matter of changing a part in the pannel.

(Note: there is no way I would undertake anthing like this by myself, any work to be done will be performed by a hired professional)

Or is it involved enough that you need to run new wire through the wall to the actual outlet? (assuming of course that there is enough "room for expansion" in the panel itself.?
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post #5 of (permalink) Old 05-28-2004, 02:36 PM
 
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Re: 220 Volt question

To work safely, it would require upgrading the wiring to handle the larger current draw. Who knows, the wiring may already be heavy enough. But to begin, try running the welder you get with what is already there. If you trip the breaker, upgrading the breaker would work but you have to be careful the wiring is not getting too hot. Basically, the heat will melt the insulation causing a possible short or a fire in alot of cases. The breaker is there to stop that from happening.
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post #6 of (permalink) Old 05-28-2004, 03:11 PM Thread Starter
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Re: 220 Volt question

Thank you all for the great info. I have my plan of attack.
1 get welder
2 start to practice
3 see what happens with the power supply, if nothing run with it. If somthing... Cross that bridge when I get there.

(safety factor)
I think by the time I am into welding anything really big that will require a huge draw, I will probably be living somewhere else (A house I build/buy)
thanks again everyone.
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post #7 of (permalink) Old 05-28-2004, 08:05 PM
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Re: 220 Volt question

Don't quote me on this...but my memory is that for 30 amps you want 8 guage solid core wire... for 50 amps you want 4 gauge stranded...don't remember real well and don't have the code book near by. There are some wood butchers (electricians) on the board they should know. Your plan of trying it out first sounds reasonable to me...blow that breaker twice and you know you are over powering it.
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post #8 of (permalink) Old 05-28-2004, 08:35 PM
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Re: 220 Volt question

</font><blockquote><font class="small">In reply to:</font><hr />
There are some wood butchers (electricians) on the board

[/ QUOTE ]
Err, I think "wood butcher" is carpenter. Electrician is "sparky".
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post #9 of (permalink) Old 05-29-2004, 07:32 AM
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Re: 220 Volt question

Nope. When you are a carpenter and you frame up a house, you then have the joy of watching the electricians, plumbers and HVAC folks come through with big drills and sawzalls and hack up all your pretty work....wood butchers.
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post #10 of (permalink) Old 05-29-2004, 10:24 AM
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Re: 220 Volt question

Don't change the breaker ....don't change the wire. If you trip the breaker ..turn down the welder. The breaker will protect everything down stream of it if there are no "dirty contacts". Save your money.

Simple.
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