On: How the Chorleywood Bread Process transformed British bread

[tetromino_]

You'd have a dedicated outlet on a dedicated circuit for the TIG welder. In North America, that dedicated outlet would have a different physical plug shape than your lamp, so as to avoid confusion. Of course, if in the UK you use exactly the same plug shape for both lamp and welder, I can see how that could be unsafe...

[ErroneousBosh → tetromino_]

Yes, but in America you have a lot of electrical fires, and in the UK, we don't.