Welding extension question 110v

[Desert Bred]

Have a 140hd Lincoln welder that if like to use only that I need it 160ft away from the nearest 20amp outlet.

Instead of using 10-2 romex with plugs on either end, AND because it's a one time job and in could use 12-2 wire...

Is it possible to run 2x 12-2 wire instead ?

 

[Soundguy]

are you asking if you can parallel 2 strands of 12-2 for higher capacity / lower loss? or are you wanting to know somehting else?

 

[k0ua]

Just make sure when you double up the wires you don't "cross polarity", otherwise you can test the "big bang" theory..

 

[Desert Bred]

Ok. Keeping polarity yes.

Higher capacity/lower loss... Not really. It's just the options are (keeping in mind it is a one off job)..
A) instead of 10-2 wire, using 2x 12-2 (so that, on one end for example, white and white / black and black/ ground and ground - attach to three respective terminals of a plug (male or female). Other end the same except opposite sex
Why? Because 500' of 12-2 can be utilized afterward for whatever application more than say 250' of 10-2 (at least around here).

B) using THHN cable 500', cut into 3x 150 feet. Positive, negative, ground.
I'm no electrician and wonder if that kind of cable can be wired into a regular 110v plug so I can plug it into a standard outlet (20amp).

Why? Well I learned that at 150', using a regular (maybe 14 gauge extension) to connect the welder, I could only get away with light tacking to keep up the gates I'm trying to weld.. And Im looking at alternatives to buying a 10gauge extension 2x @ 100' each and $100 each

 

[Inspector507]

It would really help to know the current draw of the welder. If, lets say it draws 10A, you would have a 4.23% voltage drop and you'd have 114V at the end of your "cord". If the welder draws 15A then you get a voltage drop of 6.35% and voltage reading of 112V. I figured 20A just for kicks and the voltage drop is 8.48% and voltage of 109.83V, outside of what I'd consider acceptable.

 

[Desert Bred]

Lincoln 140hd says using a 20 amp breaker is ok and I haven't popped it since using that breaker. And will be welding same type of metal and .35 wire. I'm shooting for the thhn wire 10 gauge, cut into 3 pieces for each : +,-, and ground. I can get 500' for 50$ I'm about to run the voltage drop online now



How are my settings ? Don't understand the phase so kept it at single

 

[blueriver]

How about a generator ??

 

[Desert Bred]

How about a generator ??

thought about that. Doing metal pickets 300 feet or so would be a pain starting stopping the generator but I'd do it if I could get one for less than 200

 

[Mark @ Everlast]

Keep in mind as your volts drop your amps will go up significantly.

 

[Inspector507]

How are my settings ? Don't understand the phase so kept it at single

You don't have three conductors in parallel. You have single #10's. Changes it considerably.