this post was submitted on 26 Dec 2025
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xkcd #3186: Truly Universal Outlet

Title text:

Building Inspectors HATE This One Weird Trick

Transcript:

Transcript will show once it’s been added to explainxkcd.com

Source: https://xkcd.com/3186/

explainxkcd for #3186

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[–] pelya@lemmy.world 106 points 1 day ago (2 children)

The only truly universal solution

[–] kamen@lemmy.world 8 points 1 day ago

It might be a final solution too if you're not careful...

[–] InFerNo@lemmy.ml 38 points 1 day ago

From schuko to shocko

[–] ksigley@lemmy.world 5 points 1 day ago

There really is an xkcd for everything.

[–] Skullgrid@lemmy.world 103 points 1 day ago (2 children)

I think Randal would enjoy my plug adapter

[–] ook@discuss.tchncs.de 117 points 1 day ago (1 children)

Ugh, what a shameless plug

[–] WhyIHateTheInternet@lemmy.world 35 points 1 day ago (1 children)

You try spending your whole life getting penetrated by various foreign objects and not feeling shame

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[–] otter@lemmy.ca 17 points 1 day ago (2 children)

This also makes me wonder why the xkcd one was laid out like that. Is the xkcd one better/safer, or was it done that way to look more insane.

On yours, the Canada/US and UK layouts overlap, while in the xkcd one they're opposite to each other.

[–] RandomStickman@fedia.io 39 points 1 day ago

or was it done that way to look more insane.

Yeah I think that's it lol

[–] Skullgrid@lemmy.world 14 points 1 day ago

I think it's because mine doesn't have Schuko (type f) support ... probably because it's real? And maybe because his adaptation uses "Euro"/A combination, wheras mine uses vertical axes for the "euro" plug.

[–] AwesomeLowlander@sh.itjust.works 55 points 1 day ago* (last edited 1 day ago) (5 children)

I'm not sure I fully get the joke, considering the literal existence of outlets like this. Did Randall not know they exist?

[–] atthecoast@feddit.nl 11 points 1 day ago (1 children)

Typical wall outlet in china. Any plug will hang loosely in there and work. Dangerously

[–] Alcoholicorn@mander.xyz 4 points 23 hours ago

Only if the socket is worn out and you are using a plug without inherent safety mechanisms.

[–] mech@feddit.org 9 points 1 day ago

I'm guessing seeing one of these was the starting point for this cartoon.
Also wouldn't surprise me if he threw in 1-2 types that don't exist.

[–] _stranger_@lemmy.world 19 points 1 day ago

Randall isn't suggesting a universal wall plug, he's suggesting you cut holes in your existing plates to make them "compatible". (At least that's how it reads to me)

[–] quinkin@lemmy.world 8 points 1 day ago (1 children)

Plenty don't fit that. Type i for instance.

Can't speak for all of them, but type I does fit

[–] Caspase8@aussie.zone 5 points 1 day ago (1 children)

These were all over Vietnam when I travelled there. Didn't even need an adapter.

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[–] gabelstapler@feddit.org 37 points 1 day ago (2 children)

As an engineer, thinking of designing the metal connectors needed for this, this gives me nightmares.

[–] hperrin@lemmy.ca 65 points 1 day ago* (last edited 1 day ago) (1 children)

Simple, just use a metal mesh in each hole. Make sure it’s a really thin mesh too, like practically steel wool. Pushing 1500 watts through steel wool has never caused anyone any problems ever.

[–] felbane@lemmy.world 8 points 1 day ago

thisisfine.gif

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[–] sukhmel@programming.dev 15 points 1 day ago (2 children)

Seems to be incompatible with some plugs, after all:

Danish computer equipment outlet with asymmetrically tilted prongs and half-circular ground (mainly used in professional environment). Nicknamed "dumb face sockets" in Denmark

For some reason the image doesn't seem to work for me, so here's the link to it, too

[–] Fiery@lemmy.dbzer0.com 1 points 19 hours ago (1 children)

There's no preview, not even a hint of the image being there... But clicking on the text show the image in Boost

[–] sukhmel@programming.dev 1 points 19 hours ago

On thunder there was no picture in post preview, but there is a picture in the post. Maybe it's because of png format, or maybe Wikimedia does something weird when you embed links to it, dunno

[–] ayyy@sh.itjust.works 4 points 1 day ago (1 children)

The embed looks fine for me using Voyager through sh.itjust.works with a ‘muricuh IP.

[–] cabillaud@lemmy.world 1 points 18 hours ago* (last edited 18 hours ago)

Thunder user here, works fine

[–] jordanlund@lemmy.world 7 points 1 day ago (1 children)

What about the voltages and the hz?

[–] Knock_Knock_Lemmy_In@lemmy.world 5 points 1 day ago (1 children)
[–] Alcoholicorn@mander.xyz 4 points 23 hours ago (1 children)

Put the plug in upside down to get 220V.

[–] Knock_Knock_Lemmy_In@lemmy.world 3 points 21 hours ago

You can switch from 60hz to 50hz by rotating the plug fast enough

[–] mlg@lemmy.world 10 points 1 day ago (1 children)

I actually have a really annoying problem in that I cannot find any universal adapter that has a real ground pin.

All of them only have prongs for the hot and neutral wires, and sometimes a dummy plastic ground to grip the socket better.

I understand that 99% of the time, modern electronics don't need a ground cable and its only there for safety, but it would still be a lot more comforting knowing the ground is actually connected.

I even considered modifying an adapter with a ground cable I can manually insert into the socket.

[–] balsoft@lemmy.ml 4 points 1 day ago

Ground is always there just for safety. It is supposed to be connected to any metal bits on the outside of any device, so that if a live wire touches the outside it just shorts and some fuse blows or circuit breaker trips, rather than providing an unpleasant surprise to anyone who touches it.

Most modern electronics is "double-insulated", meaning there are at least two layers of reinforced insulating material between any mains-carrying conductors and the user. This is deemed to be safe enough so that those devices don't need to be grounded, and if the case is plastic then they will almost never be. So if you're only connecting plastic-cased electronics to the socket, a ground would be superfluous in almost all cases. There might be some exceptions, like power supplies connecting one of the low-voltage pins to ground, but it is quite rare to see.

[–] yermaw@sh.itjust.works 22 points 1 day ago (5 children)

Im not an electrician in any way shape or form, so I dont know if my slightly panicky sweaty-behind-the-knees reaction to this is appropriate, but it scares me

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[–] wolfrasin@lemmy.today 13 points 1 day ago (1 children)
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[–] dadarobot@lemmy.ml 12 points 1 day ago

biblicaly accurate outlet

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