Just purchased a new (to me home) and getting the shop together.
100 amp service in the garage. Allready wired nicely but adding an additional 50 amp 220v receptacle for my welder and tapping into the existing 20amp 220v receptacle to wire my two post lift.
One observation has me concerned for perhaps no reason. Both my welder and my lift (both 220V) utilize a white/black/green wire set as supplied from the factory to make the electrical connection.
I understand that 220 v are essentially two hots coming from the box. Input from my box to the receptacle is two red wires and a white. No bare and no green. I chased them. One coming off each pole of the breaker (the reds), and obviously the matching white coming off the ground bar. Seems legit so far.
Making the actual connection, obviously I have no matching colors. From the unit being wired, I ran the black to red, the white to red and the green to the white. From the unit, I taped both the white wire and black with red tape to indicate both were hot. I connected the green (again from the unit..to the white from the box).
All is well and works fine.
I see no other way to do this but wonder why in the dickens were these color wires allowed to be sent from the factory that way? One is an older Miller welder power cable (6g B/W/G) going to a standard 50 amp 3 prong plug. Presumably my much newer Miller 175 would also yield similar colors if I were to take its power cable apart.
The big concern is no earth wire. I fully understand how I am getting it to work but think that a 4 prong plug would be much safer. However...this wiring configuration is commonplace and has been for many years.
The fix would be to run a bare ground thru my whole friggn system and change everything out to four prong plugs on both ends.
I am considering doing this over time but where does the other (new) bare wire go on the unit? Just find something in the chassis and screw it in? Seems so.
100 amp service in the garage. Allready wired nicely but adding an additional 50 amp 220v receptacle for my welder and tapping into the existing 20amp 220v receptacle to wire my two post lift.
One observation has me concerned for perhaps no reason. Both my welder and my lift (both 220V) utilize a white/black/green wire set as supplied from the factory to make the electrical connection.
I understand that 220 v are essentially two hots coming from the box. Input from my box to the receptacle is two red wires and a white. No bare and no green. I chased them. One coming off each pole of the breaker (the reds), and obviously the matching white coming off the ground bar. Seems legit so far.
Making the actual connection, obviously I have no matching colors. From the unit being wired, I ran the black to red, the white to red and the green to the white. From the unit, I taped both the white wire and black with red tape to indicate both were hot. I connected the green (again from the unit..to the white from the box).
All is well and works fine.
I see no other way to do this but wonder why in the dickens were these color wires allowed to be sent from the factory that way? One is an older Miller welder power cable (6g B/W/G) going to a standard 50 amp 3 prong plug. Presumably my much newer Miller 175 would also yield similar colors if I were to take its power cable apart.
The big concern is no earth wire. I fully understand how I am getting it to work but think that a 4 prong plug would be much safer. However...this wiring configuration is commonplace and has been for many years.
The fix would be to run a bare ground thru my whole friggn system and change everything out to four prong plugs on both ends.
I am considering doing this over time but where does the other (new) bare wire go on the unit? Just find something in the chassis and screw it in? Seems so.