I have a metal pole building with interior walls finished with metal panels and I am trying to wire a plug socket for my tig welder. The wire for the socket is on a direct 50 amp to the box. My question is do I need any special grounding because of the metal building or should I treat it as a stick building?
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Wiring a outlet for a tig machine
- Thread starter cooldave
- Start date
ishiboo
Well-known member
Grounding is the same no matter the building type. The only thing that really changes with buildings is wire protection, ie NM through a steel stud must have a bushing for protection.
Xtremetalworks2
Well-known member
Not sure what TIG machine you have but alot f the older 300 amp machines draw around 90 amps so dont be surprised if 50 amp trips
JoeFin
Well-known member
As long as the subpanel serving the metal building has the appropriate grounding to the metal frame you have no issues to worry about
my old Miller draws 125 amps
Not sure what TIG machine you have but alot f the older 300 amp machines draw around 90 amps so dont be surprised if 50 amp trips
my old Miller draws 125 amps
sberry
Banned
I agree, this begs to add the question, what machine is this?
Maybe, depending on the machine, some of the high frequency machines manuals will tell you to ground the table and any metal surrounding including the structure due to high frequency interference.
But that's all depending on what you're welding, and environment, sorcery, etc.
http://www.millerwelds.com/om/o363ar_mil.pdf - Page 64 for example.
But that's all depending on what you're welding, and environment, sorcery, etc.
http://www.millerwelds.com/om/o363ar_mil.pdf - Page 64 for example.