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Implement Alley Discussion Forum

220 extension cord?

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Paulinkansas

07-05-2006 08:19:03




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I need a 25 foot extension cord for my 220 arc welder. The outlet is 50 amps and in my garage. There are some things I need to weld that I can only get to my driveway and not close to the outlet. What type and gauge of wire should I use to make the extension cord?




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Dave Sherburne NY

07-05-2006 11:02:44




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 Re: 220 extension cord? in reply to Paulinkansas, 07-05-2006 08:19:03  
I use the silo unloader cord idea. Worked with
a fella who did a lot of welding for a living, up on grain elevators etc. Had at least 100 ft.
leads on his mobile welder. He had to change them once in a while because he said that while being used and some was coiled up, the electromagnetic fields generated in the coils would destroy them.



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old

07-05-2006 09:10:04




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 Re: 220 extension cord? in reply to Paulinkansas, 07-05-2006 08:19:03  
I usto go the extension cord way but any more I go with what seems to work better. I have one lead on my weld that is 100 foot and the other lead 50 foot, and have another 50 foot I can hook up if needed. Them old welder are to heavy to move much and the leads move easy and the cost wasn't much differant but boy being able to use it like I do made it worth it by far



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JMS/MN

07-05-2006 08:43:25




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 Re: 220 extension cord? in reply to Paulinkansas, 07-05-2006 08:19:03  
I use old silo unloader power cords for that- some are up to 70 feet long, ran 7.5 hp motors on 50 amp breakers. I think they have two #6 and one #8 wire in them.



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Shovelman

07-05-2006 08:41:02




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 Re: 220 extension cord? in reply to Paulinkansas, 07-05-2006 08:19:03  
Paul,

We were always taught to use #8 AWG (copper) for a 50A circuit, providing the run was not too long.

I would use type SO cord for this application.

Good luck,
Scott

Here's a handy voltage drop calculator:



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Errin OH

07-05-2006 09:40:20




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 Re: 220 extension cord? in reply to Shovelman, 07-05-2006 08:41:02  
Hummm...

Here is a link I use quite frequently. Actually shows the drop %. I always try to keep it around 3%. It says #10 would be good up to about 55'. #12 at 25' at 50 amps. I would go #10 SO cable. Not to much over kill ($$), very flexible, and rugged. Besides If I needed 25�, I make a 50' cord. Much easier to deal with the 9 times it's to long than the one time it's to short.

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steveormary

07-05-2006 09:31:13




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 Re: 220 extension cord? in reply to Shovelman, 07-05-2006 08:41:02  
Paul;

Would it be possible to move the welder outlet and welder to a location by the garage door.

steveormary



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