Having trouble finding clear answers to what I think are basic questions.

[NoPressure]

No Pressure:

My garage is the same setup as that, dimensions almost the same as well. Two garage bays with a shop area on the side. Mine has the shop area on the left though, and there is a wall that separates the garage bays from the shop area. My breaker box is located in the upper right corner, but that is because it's only about a 20' stretch to the utility pole from there, and I wasn't the one who built it. I like to have the breaker where I can easily access it for adding circuit and what not, somewhere I don't have to move/remove drywall etc, all the time to add stuff.

I went throughout the same conundrum as you though, with wanting a bunch of welding outlets for versatility and placement of the welder. What I ended coming to the conclusion on is to place the outlet between the two garage bays (centrally located) and be done with it. After doing research there is too much confusion with having multiple 50 amp outlets on the same circuit and by the time your all said and done an extension cord will be able to reach all points of the shop and be cheaper. By having it between the two garage bays I can use the extension cord to stick weld outside on the pavement where I don't want sparks flying in my shop, and the tig welding could be done inside just about anywhere. A 25' or 50' (50) amp RV cord can be had for less then $100. That in itself is cheaper then the big #6 wire. Add the receptacles boxes, etc...and multi outlets becomes more expensive then one good placed outlet with an extension cord.

I'll give this idea some more thought. Thanks for the input.

Since your equipment will be on the right side, that's where the panel should go.

This also means that the welder outlet would be right close to it, so you could afford to run a separate circuit for another outlet between the OH doors. Still a bit more $, but very flexible. And you could do it later.

I'll definitely be putting the panel over there now.

"good" as in "I had it to 100Amps for a bit and it didnt melt or brun"

not "good" as in "Per code you can run 100A in #8 in your walls"





NoPressure...like the dawgs in the layout!

Haha I figured someone would mention them. Just trying to get an accurate picture including all tripping hazards lol

 

[garelect]

number 8 is good for 40 amp article 310-15 b nec run # 6 wire up to junction box then down to 50 amp plug in future u can go from j box to additional plugs as necesarry

 

[sberry]

Depends on what machine you plug in to it. For a heater a 8 may be the deal at 40, a welder may be able to go 12 on a 50.

 

[wyliesdiesels]

Ok so I will probably bring the power in on that front right corner. So would it be considerably cheaper to just have one welder outlet on the right wall and a long extension cord? Versus a plug on the right wall and one on the back wall?

At the moment I have a miller 251 mig and an AHP tig. The AHP can run on 110 but it's not ideal. I also have a miller 140 mig which is a 110 unit.

welder circuits are sized differently than general use circuits.

If u want to run a circuit to be used only for the welder then u will use table 630.11(a) and the duty cycle and amp input rating on the welder nameplate.

http://ecmweb.com/qampa/code-qa-45

for the 251 u will need 50a breaker and 6-50r outlet. The max duty cycle possible is 60% with 42a input. Using the table, we use .78 multiplier giving us 33a. So u can use #10 THHN or #8 NM-b.

https://www.millerwelds.com/-/media...rted-mam-assets/spec-sheets/7/4/7/dc12-49.pdf

And its a good idea to label the outlet "for Welder use only" when using reduced size wire but is not required by code. Most will just use full size wire so the outlet can be used for other purposes.

For the TIG, without the model number i cant come up with numbers.

Actually 8 is good for 100, just depends on how long you are going to run it.

Just curious....where did you see that 8 awg wire is good for 100 amps?

For welder circuits the wiring can be a reduced size depending on welder model due to the duty cycle of the welder.

Its short circuit is 100, a 200 sync welder allows number 8 in pipe and 100A breaker. But to follow the letter here the 251 needs a 6 cable and a 50A breaker. It comes with a heavy cord. You wont use the power but the machine is capable given a different wire and gas than most garages of this nature use.
I use a 10 cord on mine on the rare occasion its away from its home port. I only run it half throttle and only 50%, never overheats the wire.

wire doesnt have to be in pipe.

"good" as in "I had it to 100Amps for a bit and it didnt melt or brun"

not "good" as in "Per code you can run 100A in #8 in your walls"





NoPressure...like the dawgs in the layout!

Actually code allows reduced size wire for welder circuits due to duty cycle. See above.

No you can't run it in the wall. That is for single circuit in pipe hard wired to the machine.

yes u can. doesnt have to be in pipe.

number 8 is good for 40 amp article 310-15 b nec run # 6 wire up to junction box then down to 50 amp plug in future u can go from j box to additional plugs as necesarry

That is for general use circuits. welder circuits are allowed to have reduced size wiring.