220v From 110v - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 03-18-2006, 03:26 PM   #1
Newbie
 
Join Date: Mar 2006
Posts: 6
Rewards Points: 10
Default

220v from 110v


I have a portable 220v 50a welder. Generally, I disconnect the electric dryer and run the welder through the window of the laundry room.

It recently occurred to me that I might be able to join two incoming 110v 30a outlets for the power. If I take in the input from 2 different areas of the garage, I will have the amps available.

I would make a 12g extension cord with two 110v males to the 220v female for the welder.

Does this make any sense?

TIA,

Advertisement

leboyd is offline   Reply With Quote
Old 03-18-2006, 03:41 PM   #2
Oldguy
 
Rehabber's Avatar
 
Join Date: Dec 2005
Location: Calif (the left coast)
Posts: 498
Rewards Points: 250
Default

220v from 110v


ABSOLUTELY NONE This would be a violation of code and inherebtly unsafe -- It would probably be a relatively simple job for a licensed electrician to a wire an outlet and add a subpanel if necesary

Advertisement

__________________
If you think you can, or if you think you can't, you're probably right.

ASE certified master auto tech, Retired.
Rehabber is offline   Reply With Quote
Old 03-18-2006, 03:44 PM   #3
Newbie
 
Join Date: Mar 2006
Posts: 6
Rewards Points: 10
Default

220v from 110v


Yep, it's not a big problem to add the 220v plug in the garage, and I figured that would be the only way, but just wnated to check before I didn.

Thanks
leboyd is offline   Reply With Quote
Old 03-19-2006, 07:58 AM   #4
Licensed Electrical Cont.
 
Speedy Petey's Avatar
 
Join Date: Feb 2004
Location: NY State
Posts: 6,899
Rewards Points: 2,152
Default

220v from 110v


I just wonder why you though a 30 amp circuit would be OK for a 50 amp device, and also why #12 would be good for EITHER?

Run a new 50 amp 2-wire, with ground, circuit to where the welder will be used. It's the ONLY safe and correct thing to do.
__________________
Sometimes I feel like if I answer any more questions it is like someone trying to climb over a fence to jump off a bridge and me giving them a boost.
Answers based on the 2008 & 2011 NEC.
Speedy Petey is offline   Reply With Quote
Old 03-19-2006, 01:57 PM   #5
Newbie
 
Join Date: Mar 2006
Posts: 6
Rewards Points: 10
Default

220v from 110v


I obviously wasn't clear enough in my thought process. Picture two extension cords ending at one 220v plug. Each cord would be plugged into a 30a outlet on a *different* circuit.
leboyd is offline   Reply With Quote
Old 03-19-2006, 01:57 PM   #6
Newbie
 
Join Date: Mar 2006
Posts: 6
Rewards Points: 10
Default

220v from 110v


And ur right, the 12g wouldn't work. It would take 8g.
leboyd is offline   Reply With Quote
Old 03-19-2006, 09:51 PM   #7
Member
 
jproffer's Avatar
 
Join Date: Mar 2005
Location: Chester, IL
Posts: 1,321
Rewards Points: 548
Default

220v from 110v


Quote:
Picture two extension cords ending at one 220v plug.
That would only work (unsafe as it may...or WOULD..be) if the two cords came from opposite phases in the panel.

AND....if one breaker tripped and the other didn't, you're running a 220 welder off of 110 power. Few minutes of that and you now you have a $1500 (or however much it was) door stop...and a bunch of welds that aren't really welded...just... ...hot.

Advertisement

jproffer is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
European 220v Tools use with US 220v Outlet dominator Electrical 20 08-03-2012 12:21 AM
Black and white romex for 220v circuit? NateHanson Electrical 2 05-02-2007 05:43 PM
110v 50hz dev Electrical 4 04-01-2007 10:56 PM
Three electricans said it was impossible! Tom Electrical 35 04-29-2006 06:06 PM
220v to 120v blwjrma71 Electrical 4 11-21-2005 07:43 AM




Top of Page | View New Posts