Welder is a Kumai FR200A. Spec sheet is
FR200A Spec SheetI have checked with other electricians, and with my dad (a retired inspector), the commonly-held opinion is that the people who sell these welders are cowboys. Replacing 15A sockets and plugs that have been fried by a welder has been quite a common call for decades, and nuisance-tripping circuit-breakers are a well-known issue. Most people put up with it because it is too costly to install a 32A feed and socket outlet. The fun starts when someone re-wires a fuse with 2 x 15A wire to stop it blowing...
