Can I connect single phase to a 3 phase outlet

I have a single phase welding set and only 3 phase power points can it be connected to these power points?

Yes, only need to use two of the three live legs of the three phase circuit.

I have a single phase welding machine how do I connect to a 3 phase power point

I merged posts since they are related.

OK if you need detailed instructions, then we need detailed explanation of what you have, wiring method, type of building, something.

I gave you the short answer, matched question.

Pictures help greatly.