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Posted on 1/27/20 at 5:02 pm to td1
Sub panel with separate breakers as mentioned. LED drivers get finicky. Chances are they would start strobing once you start pulling power to your welding machine.
Posted on 1/27/20 at 6:11 pm to Bedhog
Posted on 1/27/20 at 9:10 pm to td1
quote:
There was some discussion on us being able to do it slightly different if it was 6 circuits are less, but less circuits were not going to work for what we needed.
If its more than 6 circuits you would need a main breaker in the subpanel. If it's 6 or less you can have a main lug only panel with 6 breakers.
Posted on 1/27/20 at 9:45 pm to Bedhog
quote:
If it was me I would put a sub panel in the shed and wire for the possible future capacity for a 50 amp breaker for the welder and two additional 20 amp circuits.
This is what you need to do. I agree that technically you don’t have to put one but for safety reason you should. You can pick up a 60 Amp breaker panel from one of the big box stores
Posted on 1/28/20 at 9:47 am to Bedhog
After you sort out the sub-panel issue, that welder only needs 8/2 90C wiring.
Posted on 1/28/20 at 10:36 am to Clames
quote:
After you sort out the sub-panel issue, that welder only needs 8/2 90C wiring.
Not if he wants extra 120V circuits. Needs 3 conductor plus ground. If he just wants some LED lights and maybe some receptacles, I would still do 6/3 even if the welder draws under 30A. Also, I don't think most circuit breakers will work with 90°C conductors. I don't have much residential experience but the Square D QOB breakers are only good up to 75°C.
Posted on 1/28/20 at 11:28 am to td1
depends on the plug for the welder. My miller only required 2 legs and a ground. i have mine wired to a 50 am beaker.
Posted on 1/29/20 at 6:23 am to Bedhog
There are 4 wires in a 6/3, the ground wire is a given. I has a white, red ,black, and Green/Bald wire for the ground.
Posted on 1/29/20 at 8:20 am to Bedhog
Bedhog
You have been given some good and bad advice in this thread.
If you want to run a circuit out to your shed to power your welder and additional recepticles, then you need to add a subpanel to properly protect each of those circuits.
Remember that the breaker in the main panel protects the wiring that is feeding the subpanel and should be sized accordingly. If you run #6 then protect it with 60 or 70 amp breaker.
No matter which size subpanel you use, the ground bus bar and the neutral bus bar must be isolated in the subpanel. The ground and neutral should only be tied/bonded in the main panel.
A 6/3 cable has 3 conductors in it and should not be assumed to have a dedicated ground conductor. If it has a ground conductor it will state that on the outer sheath of the cable or be labeled as 4/C if all are the same size.
On a side note, I got to cook for Ben Coleman 3 times and was glad to do it each time. Really wish I could have got to meet him under different circumstances.
You have been given some good and bad advice in this thread.
If you want to run a circuit out to your shed to power your welder and additional recepticles, then you need to add a subpanel to properly protect each of those circuits.
Remember that the breaker in the main panel protects the wiring that is feeding the subpanel and should be sized accordingly. If you run #6 then protect it with 60 or 70 amp breaker.
No matter which size subpanel you use, the ground bus bar and the neutral bus bar must be isolated in the subpanel. The ground and neutral should only be tied/bonded in the main panel.
A 6/3 cable has 3 conductors in it and should not be assumed to have a dedicated ground conductor. If it has a ground conductor it will state that on the outer sheath of the cable or be labeled as 4/C if all are the same size.
On a side note, I got to cook for Ben Coleman 3 times and was glad to do it each time. Really wish I could have got to meet him under different circumstances.
Posted on 1/29/20 at 9:09 am to Bedhog
Not to hijack the thread but would the 220v wiring need to be in conduit by itself? Or, can it be run along with other standard (110v) wiring?
Posted on 1/29/20 at 9:46 am to seeinspots
Spots
They can be run next to each other in open air with no problem.
They can be run next to each other in open air with no problem.
Posted on 1/29/20 at 12:05 pm to THRILLHO
quote:
Not if he wants extra 120V circuits.
He'd have to sort that out when doing the sub-panel. Welders and plasma cutters are split-phase 220V, there is no neutral for them, I've never seen an inverter unit that didn't have a 6- or 10-30 plug on it for that matter. Putting in a receptacle suitable for a dryer or oven would have him buying an adapter for no purpose.
quote:
I would still do 6/3 even if the welder draws under 30A.
That would just be a waste of money and much more difficult to run properly.
quote:
Also, I don't think most circuit breakers will work with 90°C conductors. I don't have much residential experience but the Square D QOB breakers are only good up to 75°C.
They work just fine, you simply size in the 75C column.
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