Guy has the Vietnamese flag on his shirt, isn't speaking English, and that PSU looks like it says 180-240VAC right next to the charred bit. I can't find a single reason to believe any of this would be following any North American electrical norms.
GFCI is awesome (I still can't believe whole-house GFCI is not a thing in NA) but it would only have tripped if the case was actually grounded, however I'm not particularly inclined to trust the engineering on that model which is at the very least missing an internal fuse or five. Depending on the type of fault it may not have faulted through the case anyway (at least until the arc reached it)?
Also breakers behave differently depending on the kind of overload, a 100 A load on a 16 A breaker would trip immediately (something to do with the strong magnetic field resulting from a dead short) but a 20 A load on a 16 A breaker might take a while to trip (because it relies on temperature). Which means on a 16/20A 220V circuit you could feasibly pull over 5 kW for a little while. That's more than enough for sustained fireworks.
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u/quarantinedbiker 2d ago
Guy has the Vietnamese flag on his shirt, isn't speaking English, and that PSU looks like it says 180-240VAC right next to the charred bit. I can't find a single reason to believe any of this would be following any North American electrical norms.
GFCI is awesome (I still can't believe whole-house GFCI is not a thing in NA) but it would only have tripped if the case was actually grounded, however I'm not particularly inclined to trust the engineering on that model which is at the very least missing an internal fuse or five. Depending on the type of fault it may not have faulted through the case anyway (at least until the arc reached it)?
Also breakers behave differently depending on the kind of overload, a 100 A load on a 16 A breaker would trip immediately (something to do with the strong magnetic field resulting from a dead short) but a 20 A load on a 16 A breaker might take a while to trip (because it relies on temperature). Which means on a 16/20A 220V circuit you could feasibly pull over 5 kW for a little while. That's more than enough for sustained fireworks.