crazyal
Super Member
So wstf2 did we answer your question? I think things got a little muddy with all the answers but electricity is something you want to get right the first time.
220A welding circuit question
- Thread starter wstf2
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CharlieS
Gold Member
My error, i was thinking of one while referencing another. to correct myself, "grounded" conductors are to be white or gray, while "grounding" conductors shall be bare, green or green with a yellow stripe.
NEC code references for phasing colors can be found in the chapter wireing methods and materials while grounding requirements will be in the grounding section. (I don't have my code book in front of me to reference specific chapter, section and verse)
Note too, for high voltage, phasing array would be brown, orange, yellow which is standard color coding for 277/480
Inspector507
Super Member
Color coding may be "industry standards" or "industry practice" but it is not a code requirement. Unless there are two different voltages present in the same building. Then you need to identify the conductors by separate color coding, marking tape, tagging or other approved means.
Tomorrow morning, I'm ripping out the #6 four wire feed (it's only about two feet long) and replacing with #6 three wire, happens to be black, white and bare copper. I just want to be done with the four wire/clipped white neutral. If and when we sell the place, I want it to be right for the new owner.
Mace Canute
Elite Member
If you are that concerned about the neutral to the plug being in the panel, just clip it off as short as you can.
dstig1
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It's done all the time. As long as you clip both ends and cover them, no big deal. No need to replace with the same size wire unless there are other problems in the setup...
FredH
Platinum Member
WSTF2 : That is How my welder / plasma cutter plug is wired . It is about a 18" run from breaker box to plug . Since most welder type extension cords and plugs , like the one's I listed previously , Are 3 prong , 3 wire's are all you need .
Course , if you did sell your place , the next person may be color blind and not know WTF anyway . :thumbsup:
( Seriously , my Father-in-law was color blind and after we purchased the place , some of the wiring I had to figure out was a serious WTF situation .)
Fred H.
Course , if you did sell your place , the next person may be color blind and not know WTF anyway . :thumbsup:
( Seriously , my Father-in-law was color blind and after we purchased the place , some of the wiring I had to figure out was a serious WTF situation .)
Fred H.
grsthegreat
Super Star Member
I am an electrical contractor. Heres how it works. In the MAIN panel (the first panel just after the meter) the neutral and the ground can be landed on the same bus bar within the panel. Heres where it gets tricky. If there is another panel fed from this main panel, then the neutral bus MUST be insulated from the ground on the second panel(IE: The neutral bus will be mounted on a plastic spacer - all neutral wires go to this bus only. the grounds go to the ground bus.
Now, certain appliances are required to have 4 wire receptacles, such as ranges, dryers.2 hots , a neutral and a ground.
Welders only require 3 wires (2 hot and a ground). The typical welder plug will be rated 50 amps, 240 volts and have 3 prongs only.
The reason the neutral wire was added to dryers and ranges was due to the fact that these appliances have computers, light bulbs, clocks etc that required 120 volts and the older units were getting a fake 120 volts by using the ground as a fake neutral.
All you need to do is run a 6/2 copper romex to a 50 amp breaker in the panel. 2 hots and one ground.
then again, if your unsure....hire an electrician. beets getting fried.
Now, certain appliances are required to have 4 wire receptacles, such as ranges, dryers.2 hots , a neutral and a ground.
Welders only require 3 wires (2 hot and a ground). The typical welder plug will be rated 50 amps, 240 volts and have 3 prongs only.
The reason the neutral wire was added to dryers and ranges was due to the fact that these appliances have computers, light bulbs, clocks etc that required 120 volts and the older units were getting a fake 120 volts by using the ground as a fake neutral.
All you need to do is run a 6/2 copper romex to a 50 amp breaker in the panel. 2 hots and one ground.
then again, if your unsure....hire an electrician. beets getting fried.
grsthegreat
Super Star Member
after the 2008 NEC code revision, ALL other buildings fed from one panel to another building HAVE to have a ground wire run to it along with the power and neutral legs...period.
You are also to install a ground rod at the other building in addition to the ground wire. However, if your buildings were wired prior to 2008, no worries. your not required to change anything. just make sure the other buildings have a good ground rod or rods (i always set at least 2). The reason for the bonding wires are due to the earths high resistance. The overloaded circuit cant find its path back to the source to open the circuit in a fault situation. The ground (bond) wire allows for a lower resistance path back to the breaker to open the circuit.
A fancy way of saying...more work for me.
Some of you seem to be confusing "grounded conductor" with ground.
GROUNDED = neutral
GROUNDING = ground
They are not interchangeable! What the OP needs is two hots (black and red) and a ground (green or bare) connected to his welding receptacle. The neutral (white) should not go to his welding receptacle. He should not use 120v romex (with a white).
That's it, period.
GROUNDED = neutral
GROUNDING = ground
They are not interchangeable! What the OP needs is two hots (black and red) and a ground (green or bare) connected to his welding receptacle. The neutral (white) should not go to his welding receptacle. He should not use 120v romex (with a white).
That's it, period.
