They’re like that in this apartment we’re renting and I keep seeing them elsewhere. I don’t get it.
when any electricity leaks out (for example through your body) it switches off. the eu also has the same system, but its one switch for your entire house. the us also has this but only in bathrooms.
These aren’t automatic switches, but other people explained the reasoning.
Edit: The usage and benefits are the most obvious ones that you would imagine
If they were obvious to me, I wouldn’t have asked about it in No Stupid Questions.
I apologize for being stupid if that’s what you were wanting.
at least in part it’s an end result of decades of crud and tech debt, so to speak, accumulating in british power grid and home wiring. they do it this way because otherwise it won’t be safe. continental euro home wiring usually has thicker wires, residual-current circuit breakers and no ring circuits so we get away without fuzes and switches, and with smaller plugs that don’t become caltrops. sometimes we do have ring circuits kind of thing, but not in house wiring, instead it’s in medium voltage distribution grid, and it’s sized so that it can serve most of loads after single failure.
explanation
in normal state, medium voltage line (like 15kV, 20kV) might branch out in rural terrain from substation to two or more places. in case of single failure, mildly common after storms, everything downstream would be down. instead, to increase reliability, every few km there’s a radio-controlled switch and some of the far ends have line between them that is usually disconnected. in case of single failure, damaged segment is cut off, and the far end of the loop switch gets closed. this way power is delivered the long way around the loop, allowing for repairs of the damaged sector in the meantime. this also specifically avoids some of problems of ring circuits especially in situation when some lines might be damaged.
As any cautious parent could tell you, these are helpful when the toddler starts sticking things in places where they don’t belong. Such as metal cutlery. In the power sockets.
This isn’t the reason.
The switch is more likely to attract a toddlers attention. Some have little red lights even. It would be false sense of security at best. You can get those plastic blank plugs to stop your kid putting a fork in there.
The switch is so, if you kid is being electrocuted by putting their fork in the toaster, you can turn it off at the wall without having to touch the electrified kid.
Don’t toddlers start pressing buttons even earlier? Not sure this alone could protect them
The shutters inside the socket are more effective at preventing Anthony from being stuck in.
That’s to make up for how incredibly dangerous they are. /joke
