this post was submitted on 15 Jun 2024
304 points (93.7% liked)

Cool Guides

4743 readers
3 users here now

Rules for Posting Guides on Our Community

1. Defining a Guide Guides are comprehensive reference materials, how-tos, or comparison tables. A guide must be well-organized both in content and layout. Information should be easily accessible without unnecessary navigation. Guides can include flowcharts, step-by-step instructions, or visual references that compare different elements side by side.

2. Infographic Guidelines Infographics are permitted if they are educational and informative. They should aim to convey complex information visually and clearly. However, infographics that primarily serve as visual essays without structured guidance will be subject to removal.

3. Grey Area Moderators may use discretion when deciding to remove posts. If in doubt, message us or use downvotes for content you find inappropriate.

4. Source Attribution If you know the original source of a guide, share it in the comments to credit the creators.

5. Diverse Content To keep our community engaging, avoid saturating the feed with similar topics. Excessive posts on a single topic may be moderated to maintain diversity.

6. Verify in Comments Always check the comments for additional insights or corrections. Moderators rely on community expertise for accuracy.

Community Guidelines

By following these rules, we can maintain a diverse and informative community. If you have any questions or concerns, feel free to reach out to the moderators. Thank you for contributing responsibly!

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] Death_Equity 3 points 6 months ago (2 children)

Voltage is 220/240/250v, unless it is American or some parts of Central and South American where we use 110/120/130v.

The big pin is the earth(usually middle), left is usually neutral, and right is hot.

[–] [email protected] 2 points 6 months ago (1 children)
[–] [email protected] 1 points 6 months ago* (last edited 6 months ago) (1 children)

Pretty sure they're on 115/120v. Which is also not entirely true because part of the country is apparently wired for 230v or something.

I dunno, there's a long history there.

[–] [email protected] 1 points 6 months ago* (last edited 6 months ago) (1 children)

Japan is just 100V, not 110/115/120, there are some appliances that will use 200V. Similar to how the US has 240V. The weird bit with Japan uses both 50 and 60hz.

[–] [email protected] 1 points 6 months ago

Right. That was the thing. They're 50/60hz based on location. I know something was different but I misremembered.

For the US, they use 240v split phase. The secondary on the transformers have a middle tap, called neutral, so if you go from line to line, you get 240v, if you go from either line to neutral, you get 115/120v approximately. The benefit to it is that you can use two 120v devices in series, one connected to line 1, the other on line 2 and the neutral connections simply connected together. Total load voltage is 240v.

But appliances that use a lot of current like clothes dryers, air conditioners/heat pumps, water heaters, and ovens, can be connected to 240v directly.

It creates some interesting opportunities and challenges.

[–] [email protected] 1 points 6 months ago* (last edited 6 months ago) (1 children)

People get this wrong all the time. North America is 120V for the usual outlets, but what comes into your house is 240V split phase. You get 240V in places you want 240V, like electric stoves or clothes dryers.

Exception is apartments, especially those with elevators, which use three phase. Then you combine two legs to get 208V and your electric stove is kinda shitty.

[–] Death_Equity 1 points 6 months ago

That is a true fact, but all of the American outlets shown are 120v.