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Thread: HOW TO - make a 220V extension cord

  1. #101
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    Re: HOW TO - make a 220V extension cord

    I got my 50 ft 6/3 SOOW from welding supply for $130ish. Shipping ended up only adding $4 to my existing order. Lowes/home depot did not carry and were not interested in ordering it for me

  2. #102
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    Re: HOW TO - make a 220V extension cord

    Gent's (ladies too if any) the receptical needs to be in a box! Not just a code - but safety issue. Maybe look into changing the striaght blade plug on your welder to a twist-lock, and use an appropriate "cord cap". (A receptical intended to be on the end of a cord)

  3. #103
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    Re: HOW TO - make a 220V extension cord

    Quote Originally Posted by e57 View Post
    Gent's (ladies too if any) the receptical needs to be in a box! Not just a code - but safety issue. Maybe look into changing the striaght blade plug on your welder to a twist-lock, and use an appropriate "cord cap". (A receptical intended to be on the end of a cord)
    You can get a cord version of almost anything.

    Twist-locks are nice but most wont want to spend $35/45 per connector.
    Me!

  4. #104
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    Re: HOW TO - make a 220V extension cord

    Please note, the homemade extension cords in this thread will result in a OSHA citation if used on a site where they have juristiction & they show up, they do not like metal 4 square boxes on cords... The use of surface mount 30 & 50 ampere surface mount devices on a cord is a even poorer practice, 1st time someone drops it you have exposed parts making it a "Darwin award" in progress.


    Please do electrical work safely or hire a qualified electrical contractor.

  5. #105
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    Re: HOW TO - make a 220V extension cord

    Here's mine the longer one I use for my 80gal air compressor which uses 240/30amp. I added on to my garage so the compressor is on the other side of the building so instead of changing location of the plug that I use for my welders also I thought I'd just make an extension cord for it. The smaller is an adaptor I use with the larger cord with my Hobart Handler210 so I can get it out of the garage to where it is needed. Both use the twist locks.
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    It's not what you can buy, it's what you can build that matters

  6. #106
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    Re: HOW TO - make a 220V extension cord

    ok i bought a 10/3 extension cord i want to plug it into my 3 prong L shaped dryer outlet to run my welder and air compressor on....question is which colored wires from my extention cord (colored green white black) go to the 30 amp L male plug i will be adding which only shows red black and white? which color goes to the L post? im assuming that the white neutral wire takes the place of a ground which would be the green wire on my cord and that would go to the L shaped conector? and the white and black from the extension cord goes to the red and black female flat blades the plugo.is this correct? (green/white ground L shaped blade) ( 110v each color red/black-black/white flat blades) any help?

  7. #107
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    Re: HOW TO - make a 220V extension cord

    Quote Originally Posted by Dave Baker View Post
    ok i bought a 10/3 extension cord i want to plug it into my 3 prong L shaped dryer outlet to run my welder and air compressor on....question is which colored wires from my extention cord (colored green white black) go to the 30 amp L male plug i will be adding which only shows red black and white? which color goes to the L post? im assuming that the white neutral wire takes the place of a ground which would be the green wire on my cord and that would go to the L shaped conector? and the white and black from the extension cord goes to the red and black female flat blades the plugo.is this correct? (green/white ground L shaped blade) ( 110v each color red/black-black/white flat blades) any help?
    Connect the Ground/Green wire to L
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  8. #108
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    Re: HOW TO - make a 220V extension cord




    here is a Pic
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  9. #109
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    Re: HOW TO - make a 220V extension cord

    thank you ive been to so many sites trying to clarify this seems half are wrong and dont know what there talking about............. so it confused me!!

  10. #110
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    Re: HOW TO - make a 220V extension cord

    i have a lincoln ac 225 stick welder, would this setup work? it won't be used alot.

  11. #111
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    Re: HOW TO - make a 220V extension cord

    Quote Originally Posted by dirtdriver11 View Post
    i have a lincoln ac 225 stick welder, would this setup work? it won't be used alot.
    Two hots, and a ground. Just like 2 posts back.
    "Any day above ground is a good day"

    http://www.farmersamm.com/

  12. #112
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    Re: HOW TO - make a 220V extension cord

    Years ago, I acquired a 60' 4-wire construction cord with twist-lock connectors that I put NEMA 6-50 hardware on. Later, I picked up some very heavy cable at a recycling center (free), and last spring, got another construction cable w/ twist-locks really cheaply from Craigslist (I didn't need it but the price was too good).
    IIRC, the first is a 6-3, 8-1 and is as about heavy as my machine; I used to keep it on one of those 3' diameter wooden spools.
    Anyway, with all the cables I have, I think I could weld all the way around to the the other side of the block.

  13. #113
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    Re: HOW TO - make a 220V extension cord

    Quote Originally Posted by MAC702 View Post
    It's always nice when you post something like that to at least mention to others who might try it, that it's illegal.

    You no doubt did it because you were using material you had on hand. Romex, as you can see in the photo, is not very flexible, and is really only designed to be bent during a permanent installation.

    Real cords are stranded with much finer wire, designed to take constant flexing which can break the larger strands in Romex, especailly if the utmost care wasn't taken during stripping of the individual wires. The slightest nick on the copper will be sure to be a broken strand in a short period of time.

    I'm not telling you not to use it, and you've obviously already learned how to deal with its tripping hazards.
    I ran that stuff out to my garage through 1 1/2 abs (i know not up to code) it was a pain getting it through them elbows i tell you what had to put each piece on individualy and then cement it together.

  14. #114
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    Re: HOW TO - make a 220V extension cord

    Im probably gonna make a 20ft using 10/3. Question is, which plug would i need for it to plug into my 50amp dryer outlet? Heres a pic of it.

    http://i177.photobucket.com/albums/w...r27/outlet.jpg

    Thanks
    Shane

  15. #115
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    Re: HOW TO - make a 220V extension cord

    Quote Originally Posted by welderShane View Post
    Im probably gonna make a 20ft using 10/3. Question is, which plug would i need for it to plug into my 50amp dryer outlet? Heres a pic of it.

    http://i177.photobucket.com/albums/w...r27/outlet.jpg

    Thanks
    Shane
    The one that fits it
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  16. #116
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    Re: HOW TO - make a 220V extension cord

    That is a 10-50R ( receptacle) so you either need to make Pigtail to go from yer 6-50P that is on the Machine's cord or replace the Plug on the cord with a 10-50P(Plug)


    BUT you will have to wire it differently than how a Dryer is wired.


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  17. #117
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    Re: HOW TO - make a 220V extension cord

    Hmm.... some of us have 230v as standard but normally it does not have enough amps to back it, a small inverting welding machine needs at last 16amps not to blow the fuses.

    If you got money, i've got time

  18. #118
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    Re: HOW TO - make a 220V extension cord

    Excuse me for my ingorance but after reading all that im still confused. MicroZone this question is more so for you since I think we have the same machine(Econotig) but different power source. I want to use the same extension cord as you but i need to know if it matters that my outlet that im pluging the cord in has four points instead of three points? The outlet is on a 50amp circuit. Heres a pic of the plug that came out of the outlet and the outlet.

    Thanks, Slim
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  19. #119
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    Re: HOW TO - make a 220V extension cord

    Slim-

    That is a 14-50 Outlet

    Go to Home Depot or Lowes and buy a 14-50 4-wire range plug and a 6-50R

    You will use the Red, Black and Green wires- cut back the White and tape off.
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    Last edited by Broccoli1; 03-28-2009 at 06:51 PM. Reason: Wrong info
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  20. #120
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    Re: HOW TO - make a 220V extension cord

    Thanks Broccoli, for now on I'll just pm you when I have a question. Always a good and fast response. I headed to Home Depot now

  21. #121
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    Re: HOW TO - make a 220V extension cord

    So I should be looking for a 10/4 in 50' right?

  22. #122
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    Re: HOW TO - make a 220V extension cord

    If you want to make a 50' extension cord then you won't need the Range Cord like I posted- that is just a short Pigtail.

    and you don't need 4-wire Cord since you'll only use 3-anyway

    Just buy 50' of 3-wire cord- I bet it is about 1.98ft

    1- 14-50p
    1-6-50R
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  23. #123
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    Re: HOW TO - make a 220V extension cord

    Wire it up like this.
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  24. #124
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    Re: HOW TO - make a 220V extension cord

    Do you think I should get 8 or 6 gauge just to be safe?

  25. #125
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    Re: HOW TO - make a 220V extension cord

    Well the manual online suggests 6g
    http://www.millerwelds.com/om/o303v_mil.pdf


    Dern those Econotigs take some juice

    Gonna be a heavy duty cord
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