this post was submitted on 28 Nov 2025
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[–] lime@feddit.nu 49 points 2 days ago (1 children)

the japan one will always be funny.

yeah the west island bought their first generator from the germans so it ran at 50Hz, and the east one bought theirs from the americans so it ran at 60
– and then they unified the systems, right?
...
– right?
anyway that's why switch-mode power supplies were invented

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

Hahahahaha 😭😭😭🫠

[–] teft@piefed.social 16 points 1 day ago* (last edited 1 day ago) (2 children)

The first time I ever used an electric kettle was in south korea for my ramen. I was like "man, when I get home I'm so buying one of these. 5 minute ramen is great."

Then I got home and bought a kettle and it took for-fucking-ever to boil. 120v is such bullshit. Give me POWAH!!!

[–] ooterness@lemmy.world 17 points 1 day ago

Technology Connections just published a video about this. By the end, he's got an overclocked 6 kW tea kettle boiling water in under a minute before destroying itself.

[–] LibertyLizard@slrpnk.net 6 points 1 day ago (1 children)

Was this a while ago? I've gone through several on 120v and I don't think it's ever taken more than 5 min.

[–] teft@piefed.social 9 points 1 day ago

It was early 2000s but power standards haven't changed. 5 minutes is a long time when you're used to 1:30 minute to boil. I meant 5 minutes from tearing the package to eating it not 5 minutes to boil but I can see how my phrasing was confusing.

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

That's odd - all my life I've believed the UK was at 240v, yet here and in the article it says 230. My life has been a lie.

[–] Benchamoneh@lemmy.dbzer0.com 10 points 1 day ago (1 children)

It was originally, but we changed to 230 to align with mainland countries. Some older substation equipment and warning labels still state 240 if you go looking

[–] sanguinepar@lemmy.world 3 points 1 day ago

Ah, thank you, that explains it 😁👍

[–] otter@lemmy.ca 40 points 2 days ago* (last edited 2 days ago) (2 children)

Yes, this is because of the recent Technology Connections video

https://youtube.com/watch?v=INZybkX8tLI

My car charger can boil water really fast

That title might be the best effort I can pull off.

Other stuff:

Technology Connections on Bluesky: https://bsky.app/profile/techconnectify.bsky.social

Technology Connections on Mastodon: https://mas.to/@TechConnectify

[–] litchralee@sh.itjust.works 17 points 2 days ago

Somehow it's like Technology Connections is spying on me and delivering bespoke content. I had already considered how a 240v electric kettle would work in the USA (and I probably spend way too much time thinking about our electricity supplies) but that video firmly answers the feasibility question, with a resounding yes.

One day I'll commit to having that NEMA 6-20 receptacle. It could also be useful if I get a portable iinduction wok or something like that.

[–] theskyisfalling@lemmy.dbzer0.com 11 points 2 days ago* (last edited 1 day ago)

I have watched so many videos on things I never thought I'd could care about such as heat pumps, dishwashers, freeze drying etc all because of this guy. His videos are great!

[–] drolex@sopuli.xyz 29 points 2 days ago (1 children)

My country: obvious and very clever choice

Your country: ridiculous and unpractical choice, borderline sociopathic

Guyana: now that is bold

(What is my country or your country? Irrelevant.)

[–] SubArcticTundra@lemmy.ml 6 points 1 day ago

Why does 230@60Hz exist? Using the euro voltage with US frequency must be a compatibility nightmare

[–] lvxferre@mander.xyz 18 points 2 days ago* (last edited 1 day ago) (1 children)

In Brazil both voltages and sockets (mentioned in the "details" link) are so much of a mess that it makes me irrationally angry.

EDIT - might as well go further.

Voltage-wise, in my city (yup, the mess changes by city!) most households have both 127V and 220V sockets. 220V is typically for heavy duty appliances, like the electric shower. But depending on the city you see only 220V, and I wouldn't be surprised if some were 127V only.

Now, the sockets. Two round pins? Two symmetrical flat pins? Two asymmetrical flat pins? Three round pins in an equilateral-ish triangle? Three round pins in an obtuse triangle? Yes. I've seen all of them. With varied thickness. The standard is the obtuse triangle, but since it was enforced just ~18y ago and imported appliances are common you'll see plenty aberrations. Or people who have old houses, 2 pins sockets, and rip apart the ground pin from their 3 pins plugs.

But perhaps this bloody mess prevents people from plugging 127V appliances into 220V sockets or vice versa, right? ...right? Nope! You'll see the same sockets mess for both voltages. And for bivolt appliances, too.

Fuck all this shit. Just stick to 220V@50Hz like in Argentina, at least I can have an electric kettle this way. And before someone says "but generators don't support it", look at Paraguay dammit, most of its energy is produced in Itaipu, and it's 50Hz. And speaking on that bloody sockets standard, now you have two options:

  1. Enforce the special snowflake standard harsher and encourage other governments to adopt it. And no, it isn't even compatible with the Swiss one, even if they look similar.
  2. Ditch it and use the same as some other group of governments; preferably the Schucko, plenty governments enforce it.

[Fun fact to lighten things up: people often call volts "velas" candles here. So e.g. "127V" and "220V" are often called "cem velas" (100 candles) and "duzentas velas" (200 candles) respectively. Confusingly enough some also do it with watts.]

[–] T4V0@lemmy.world 3 points 1 day ago (1 children)

[Fun fact to lighten things up: people often call volts "velas" candles here. So e.g. "127V" and "220V" are often called "cem velas" (100 candles) and "duzentas velas" (200 candles) respectively. Confusingly enough some also do it with watts.]

Never heard this before, brazilian here btw.

All regular sockets in my city are 220V 60Hz. I think only places like hotels have different voltages.

Or people who have old houses, 2 pins sockets, and rip apart the ground pin from their 3 pins plugs.

Yep, my dad can't stand the ground pin in almost every plug. I had to convince him not to destroy them all.

[–] lvxferre@mander.xyz 3 points 1 day ago

Velas: perhaps it's a regional thing, but here in Curitiba I hear it all the time, for both volts and watts. e.g. last week someone asking me if the RGB in my computer was "de doze ou cinco vela" (12V or 5V). Or someone else saying a LED lamp was equivalent to an incandescent lamp of "oitenta velas" (80W).

220V is plain better, as in the video OP linked, you aren't losing much from it. Odds are hotels in your city only have 127V for appliances guests might bring with them. (Here in Paraná it's just two cities like this. Everyone else is in the same mess as Curitiba.)

Yep, my dad can’t stand the ground pin in almost every plug. I had to convince him not to destroy them all.

My sister, too. She was in a position to know it better, but... *shrugs*

[–] myotheraccount@lemmy.world 13 points 2 days ago (3 children)

What's up with those 127V?

[–] Successful_Try543@feddit.org 25 points 2 days ago (1 children)

Much, maybe all, of Mexico supplies single phase power via 2 phases from three phase power. In the US that is known in the power industry as "network power" and is usually 120/208 volts. Now 208 volts sucks. But to get 240 volts from such a configuration, you'd have to have 138.5 volts on line to neutral, and that is a bit too much for most things that want 120 volts. In Mexico they have chosen a compromise where the L-N voltage is just a little high (127 volts) and the L-L voltage is just a little low (220 volts).

electronics-lab.com

[–] myotheraccount@lemmy.world 6 points 2 days ago
[–] criticon@lemmy.ca 13 points 2 days ago

As a Mexican I thought 127V was the norm in the West until very recently

[–] BastingChemina@slrpnk.net 3 points 1 day ago

I think it's because in a three phase system is you have 220v between two phases then you'll have 127v between one phase and the ground.

I know in France at one point before the 50s most of the country was using 110v, then some of it switched to 127v but from the 50s they decided to unify the national electrical grid to 220v. It took a while but now I don't think there is any 110v left.

[–] Kenny2999@lemmy.world 12 points 2 days ago (2 children)

I member the switch to 230v. There was a buzz and then nothing.

[–] Theoriginalthon@lemmy.world 6 points 2 days ago

Well the tolerance is +10% -6%, so that's 253-216v

[–] pHr34kY@lemmy.world 2 points 1 day ago (1 children)

I swear Australia just did it quietly. We could have done with that extra juice to charge our cars faster.

[–] AllNewTypeFace@leminal.space 2 points 1 day ago

IIRC, they loosened the tolerance and lowered the nominal voltage from generators to be around 235, to provide more leeway for electricity fed in from domestic solar panels without tripping circuit breakers.

[–] Swemg@lemmy.world 4 points 2 days ago (3 children)

So I was to move to Colombia from Europe, could I bring my tools or would it never works?

[–] teft@piefed.social 4 points 1 day ago

Depends on the tool. Some things will work fine by just flipping a switch near the power plug while others will emit the magic blue smoke or melt down. If you don't know if your devices are compatible the best bet is just to get a step down converter or use local electronics.

[–] Junkers_Klunker@feddit.dk 2 points 1 day ago

That probably wouldn’t be a problem as the voltage is the same, but as the frequency is higher your record player will likely spin too fast. Most things won’t care as they’re rated for both 50hz and 60hz

[–] lvxferre@mander.xyz 1 points 1 day ago

Buy a transformer.