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Tool Talk Discussion Forum

Extension cord for welder

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rc_ct

08-01-2005 10:27:02




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For the last couple of years I've been using a portable generator as the souce of my 220AC when welding out of range of AC service. Want to make an extension cord up that I can plug into a 40amp Outlet. Hoping to get close to 100' if not longer. Wondering what lengths others have made up and with what gauge wire? I currently us a miller thunderbolt for stick welding and a Linde mig welder both give full range of settings on a 40 amp breaker.

Thanks

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chvet73

08-07-2005 19:45:38




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
Use a 6ga 35' for my Hobart 175 mig. Works fine.



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dr.sportster

08-03-2005 12:30:32




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
Romex does not last long in these uses and is a code violation also.If you do what Old said and get longer welding cable you will always have them to use.



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huntingreen

08-02-2005 10:04:13




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
Using Romex (trade name) for extensdion cords. That is about as cheap a cord you can get. Use proper OSHA approved cords for outside use it the is where you are using them. Look at the stastics on electrocutions and see how most of them occur.



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Big Jim

08-01-2005 23:34:36




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
I"ve got one I made up for both the motorhome and the welder. It is about 50 feet of 3 #6, 1 #8 good rubber cord (code lets you use a smaller ground so it is standard cable) with 4 pin, 50A connectors. Runs the A/C on the motorhome or the welder at 250 amps with no trouble.



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fred kobs

08-01-2005 22:16:00




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
I used 80' of 4 conductor 6 guage...used other wire for a 110 oulet for the grinder never seemed a problem on a 250 Miller MIG. fred



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snappie

08-01-2005 20:17:30




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
I did the same thing because I wanted to weld under the shop overhang out back on a long term project. I went about it a different way, I left the welder where it was and made extentions to the + and - welding leads. I just turn up the welder a little to make up for amperage loss



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S.Jewell

08-01-2005 18:38:51




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
I made a 35 footer out of 6 gauge strand cord(or silo unloader cord). Probably a bit overkill, but it was a misfit that someone cut off a roll at Farm & Fleet. Bought it real cheap!!!! Easier to roll up than Romex. With the ends I think it was around sixty or seventy bucks. Their is probably a web site that you can calculate line drop at a given length. You might want to check with an electrician or and electrical supply company. Keep in mind if you want a hundred or more foot of #6 or larger wire you better have a fork lift with you...Doesn"t seem real "portable" to me. Good Luck.

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JMS/MN

08-01-2005 17:38:21




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
Check with a dary equipment dealer for the line cord for a silo unloader. 7 1/2 hp motor draws 37 amps, works well on a welder.



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Redmud

08-01-2005 17:16:02




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
I make my extension cords outta the same stuff the house is wired with. Romex! I have several that are different lengths. nothing will smoke a good air compressor motor, or welder quicker than a cheap extension cord.



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old

08-01-2005 11:42:00




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 Re: Extension cord for welder in reply to rc_ct, 08-01-2005 10:27:02  
For 100 foot I would use nothing smaller then 6 guage wire for 50 foot you might get by with #8. But me I do it the easy way I use 100 foot leads on the welder instead of moving the weld to the job. If I need to move a welder I use my lincoln portable welder.



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504

08-01-2005 19:50:14




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 Re: Extension cord for welder in reply to old, 08-01-2005 11:42:00  
I use Romex too,but it will not take the abuse of day in and day out use(solid wire will break) kjm



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