Yeah i know what you meant,but i dont think others didLike I said i have done this off my own supply not on a farm. I also said I wouldn't try it off an extension lead.
^^Exactly this, I would say 140/150 should be achievable no matter what the supply, you could of course get more but that's down to (Mostly) the quality of your supply and (A little bit) choice of welder. (Inverters being more 13A "friendly" than transformers.)We seem to cover this topic in detail every month or so and the conclusion (surprisingly!) doesn't change - on paper you shouldn't be able to run more than a ~140A welder on a 13A plug but many people can and do, so there is a little luck of the draw.
It's not a great idea to do it at length, though, because the 13A plug is there to protect the wiring not the welder, and drawing more than the cable's rated capacity for any length of time ain't recommended.
I'll have a look at what I have installed and figure out a way to do it... Have access trough work to cheaper electric boards and breakers, might install a neat board in the shed if my mains cable is anything good (as it looks like its only a 1,5mm cable, the grey flat ones)If you can its always better, just be sure it also trips in the shed! At one time I had to walk to another building to re-set