I plugged in an appliance. It immediately created a loud noise and spark. Had to go to the circuit break to flip the power back on. Was it a current overflow in the cord?
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Ground fault protection. To put it simple: when you plug something to the mains as much is supposed to go in to tour device as comes out. Your circuit breaker senses this constantly, if the amount of power going in or out doesn’t match, it trips open. This is to prevent you or the device getting electrocuted. Either electricity is going somewhere where it shouldn’t, or is coming from where it shouldn’t. Which ever the case is, the safest bet is to trip the circuit open.
Now how sensitive this switch is, depends on the protection syatem and the kind of rating the socket is designed for.
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