They’re like that in this apartment we’re renting and I keep seeing them elsewhere. I don’t get it.
To turn them on and off.
To turn things on and off.
I remember when I was young and bending down all the time was a thing you could do painlessly. Ah, youth.
the UK power grid is weird. mostly due to echoes of the war. used to be that, to save copper, the entire house and sometimes multiple houses on a street would be wired as one big loop of wire, no fuse box or anything. that’s where the individually fused plugs and switched sockets come from. then, since it turned out to be quite a good idea for safety, they kept doing it.
This isn’t strictly true. Most houses built between WWII and the '90s were built with sockets that didn’t have switches on them. It was only later safety regulations / suggestions that made the switches preferable.
Where I live was built in the late '80s right before switched sockets became more common. All the original sockets have no switch. Some in the kitchen have switches, but it’s clear these were added at a later date.
I’m not sure of the exact rulings and where and when a socket must have a switch, but you can still find switchless sockets for sale at the sorts of retailers who sell those sorts of things, so there are definitely places where those sockets are still allowed.
The old Ring Circuit
eastern block solution to copper shortages was to wire houses with aluminum instead of copper. this avoided all that bizarre bullshit that brits do, and in principle it’s a good idea since aluminum is used for big time power distribution as well. this worked pretty well until it was noticed that under some conditions hot spots can form on connections over time, requiring replacement of connectors. it’s still legal to use aluminum wires in some places, but copper is more common now
Why are people saying this?
I’ve lived in multiple UK houses and never once seen a socket with a fuse. Are you saying this was change way way back in the day?
All houses have fuse boxes (which then got upgraded to circuit breakers). Not one fuses in sockets. Would be a fucking nightmare to take the socket off and change a fuse.
The fuse is actually in the UK plug (the big brick-like thing with the wire on it), not the socket. But yes, it’s a thing, and most of the rest of the world considers it overkill. Also a lot of cheap junky equipment (ironically the stuff where you’d most want the fuse) omits the fuse in the plug, go figure.
Yea I know, I’ve wired a plug.
Never seen a fuse in a socket though. That comment is completely wrong and yet it’s the most up voted reply.
Never seen a house without a fuse box either.
No - there’s fuses in the plugs themselves, the switch is largely for convenience and safety - if you want to unplug something broken and potentially live, it’s much safer to switch it off at the wall than risk a shock given the current limit is on the breaker is so high
Are folks able to replace the fuses without exposing live parts? I totally get the safety angle.
Sorry but I’m going to need a source on that because there is no evidence of that being the reason UK plug sockets have switches
Other countries have switches on their sockets, Australia being one because I live here
Switches on sockets do make a ton on sense though for safety reasons for example if you need to quickly isolate electricity from the switch and the breaker hasn’t done anything
Switches also prevent arcing when you pull out a plug if an appliance doesn’t have an off switch and you can switch something off that you use commonly say a kettle but don’t unplug because you use it commonly so theirs less chance of an electrical fault happening while no one is there and its also the same reason I’ll demand an isolation switch be installed on electric stoves just incase the dail on the stove fails and the stove turns on
Allows you to remove power from the plugged in device without unplugging it. This provides convenience to easily and quickly turn things on and off and prevents arcing when unplugging. 240V 13A can arc a bit, particularly if unplugged under load, or on older sockets where the contacts have worn. While a little arcing doesn’t do much damage immediately, over time it will cause pitting and make a high resistance joint that will generate heat.
The switch only disconnects the live terminal, but the neutral terminal should be similar potential to earth (depending on how the building is wired).
Truly the king of plugs and sockets. The plugs are individually fused according to the device needs, ergonomic to use and exciting to stand on.
Allows you to remove power from the plugged in device without unplugging it. This provides convenience to easily and quickly turn things on and off and prevents arcing when unplugging.
That’s exactly what I do, because it’s more convenient than unplugging everything.
I live in South Africa, where we had rolling blackouts (called loadshedding) for a few years. It’s easier to switch everything back on when the power comes back than to plug it back into a socket without a switch, especially with my fucked up spine.
The electricity in the place I live was done poorly, so having something plugged in “live” risks a surge or something and then the appliance gets fucked and then everything smells like burnt plastic.
And that’s the best case scenario. Others have had housefires.
Also, the South African plugs aren’t pleasant accidentally to step on. It won’t pierce your foot, but it can still hurt like a motherfucker for a few seconds if you step on it in the wrong way.
Those UK plugs do look a lot more nasty to step on. I shudder at the thought.
I like the EU and US two prong cables ( 🔌?) where the prongs are parallel to the cable, but not the cables with the orthogonal prongs.
I like the EU and US two prong cables ( 🔌?) where the prongs are parallel to the cable, but not the cables with the orthogonal prongs.
Non-grounded plugs aren’t that great, though, and once you add the third prong the plug gets much less flat. Compare:
Maybe Italy and Chile have the best idea in terms of slim grounded plugs, although the lack of polarity might be a problem?
Also, IMO right-angle plugs are often better than straight ones because you can put furniture closer up against them and do so without stressing the cable.
right-angle plugs are often better than straight ones because you can put furniture closer up against them and do so without stressing the cable.
Yeah that is definitely a huge bonus. I’ve taken it for granted.
We’re slowly adopting three pronged Italian/Chilean-type plugs that will be “backwards-compatible” with the EU plugs. I have no clue about polarity or anything like that.
New sockets include em. The original three pronged socket is kind of a hazard. Kids can stick their fingers in there. Not sure how that got approved.
why would the lack of polarity be a problem? the outlets only deliver AC, and everything plugged into them are made for AC.
Makes sense, American lie voltage (outlets) are 120V. 240V is considered high voltage and isn’t typically fed into residential units. Plugging anything rated for 120V into a 240V outlet is gonna be a bad time, and is why the outlets for high voltage are shaped differently.
I was gonna guess that the switches were too negate so-called vampire power, which is when a truck’s of electricity flows into appliances that are normally off. IMO that trickle is so negligible in a residence that is 6 effectively irrelevant, but that’s just here in the US. I don’t know anything about foreign electrical systems.
240 is used all the time for furnaces, driers, and increasingly EV outlet connections.
It’s just all our “normal” stuff is 120.
I wish our electric kettle outlets were 240. I’m unreasonably jealous that other places in the world can boil water faster!
So we can turn the power on and off.
Why else would you have a switch next to a power socket?
Most of the places in the world I have been to do without them, or at least did when I was there, so it confused me. But some people have given good explanations now.
Open one up. There’s also a fuse connected to the live wire. The amperage is dependent on the normal draw of the appliance. Just added safety features. Also the live and neutral holes only open up if you put the earth in first (that’s why it’s longer). British plugs are arguably the safest… Unless you leave them prongs up and step on it accidentally. That makes stepping on Lego feel like a shag carpet.
It seems a bit overengineered for little gain compared to good old schuko imo
The real question is why did the UK decide that on the outlet itself is the best place for that switch, as opposed to e.g. in the US where outlets are sometimes wired to a switch located next to the door to the room?
Switches located next to the door are for lighting, as opposed to switches on the socket which mean you can fully turn off your rice cooker without unplugging it. We do sometimes have sockets in the UK with the switch at the door, but they are usually a different shape socket that is designed for a lower current and is only intended to be used for floor lamps.
- Okay, that makes sense.
- Wait, your lamps use a different plug? That seems needlessly limiting/inconvenient.
Do you have individual switches for each plug socket / outlet wired next to the door? That seems like it would take a lot of wiring, and need a lot of switches.
The room I’m currently in has six double sockets spread out around the room. They each have one switch per socket like in the post’s image. If they were wired back to the door, they would need a lot more wiring, and one of the two entrance doors would have to be chosen. You’d then have to walk to that door every time you wanted to turn something off.
It seems like a lot more work for no real benefit.
Do you have individual switches for each plug socket / outlet wired next to the door?
No, the rooms I’ve seen wired with lamp circuits would typically have one switch next to the entrance with several outlets wired together to it in the same circuit, along with another circuit of several unswitched outlets. Flipping that one switch would turn all the lamps on at once.
(More rarely, there might be two lamp circuits in a room, with two switches controlling two groups of outlets. I think my parents’ formal living room might be like that, but we barely used it and I haven’t lived there for 20 years, so I can’t quite remember.)
and one of the two entrance doors would have to be chosen. You’d then have to walk to that door every time you wanted to turn something off.
Nah, that’s what three-way switches are for: you can have a switch at each entrance that controls the same group of outlets.
Having a switch next to the door would be useful if you’re using that socket for a lamp but not if you’re using them for anything else. In my kitchen the sockets for my under counter oven and fridge are under the counter and the switches are above it so I can easily access them.
Why can’t you just unplug it? If you have to go to the socket anyway… maybe I don’t understand because I’ve never lived with the convenience?
Depends on the device.
Something like a vacuum, sure. You’re probably going to move it around anyway.
But I used to have a Spectrum computer, and it had no power switch. If you plugged it in then it was just on. Much simpler to power off at the switch than unplug it and risk the plug falling down the back of the table into a rats nest of cables.
Plus I guess it’s one more step a toddler needs to do to electrocute themselves…
But I used to have a Spectrum computer, and it had no power switch. If you plugged it in then it was just on
Something I’ve learned talking to my bri’ish friends online over the years: this happens to you guys because you have those switches. I cannot think of anything I’ve bought in the US that didn’t have its own power control for when it’s plugged into the wall (unless it’s something silly that I made or, for whatever fucking reason, Christmas lights and ONLY Christmas lights as every other decorative string light I own has a switch)
Maybe this was meant to be a joke, but that’s not how it works. If it were the switch would also not do anything, because what the switch does is exactly the same as unplugging the thing, i.e. cut a piece of the wire out.
Edit: unless you meant for safety reasons, in which case the shutter inside is a lot safer than the button.
