Went to a call out. I was told that the induction hob sparked while in use which tripped the RCD. It's a hob and oven on a circuit together. Apparently the same thing happened before (last year I think) so the hob and oven were replaced (student property). Any ideas what may have caused this? The only thing I thought of was loose connections (causing an arc which creates a surge in the hob?). The cooker plate connections were loose so I tightened them. Any other ideas? Maybe:
Loose connections or cable damage (limiting the current flow to the appliance or creating arcs?)
Faulty appliance
Incorrect polarity?
Incorrect voltage?
Thanks.
