Electricity is technology.
What is the difference between 120V and 240V voltage standard?
120 * 2 = 240
The difference is 120V
>>51684201
the electrical potential
>>51684201
You get a bigger shock with 220V
>>51684201
One is the acceptable world standard, the other is a retarded hipster standard.
>>51684201
USA developed an electric grid first and at the time it wasn't possible to carry voltages higher than 120V
>>51684216
That guy gets it
>>51684201
Does the frequency make any difference ?
240V is more efficient.
>>51684246
same thing happened with tv standards
kind of hard to adopt the reasonable standard when you've already got something in place
220V/60Hz is overall a better choice, it's more efficient both at transmission and usually in conversion inside power supplies. It's also capable at delivering more power with standard 16/32A breakers obviously. The only advantage of 110V is that it's less damaging if you shock yourself I guess.
>>51684300
Yeah it's like the Hz on your monitor the higher the number the more bigger the electricity goes do
>>51684317
kek
>>51684317
Kek
>120V
Needs bigger and more expensive breakers
>220V
Doesn't, you save a few bucks.
Blue = Good guys
Red = Bad guys
Orange is closer to red so it is objectively bad.
did the US force their shitty standard on Saudi Arabia?
>>51684337
Thanks, we needed a retard to weigh in over the rational answers in this thread
>Japan
What's the fuck happened there? Why does North and South have different frequency?
>>51684201
Wait, does Japan actually have two different standards?
What the fuck?
>>51684346
I think SA just wanted to be more like America.
To show they can be wasteful too.
>>51684317
Go to fucking sleep, Batou.
>>51684201
Holy shit Brazil what the fuck are you doing
All your standards are gay. We should use dc
Viva La Peru
>>51684360
>Wait, does Japan actually have two different standards?
It doesn't make much difference since practically every appliance is 50/60hz compatible.
>>51684462
Oh, OK.
But in that case, why haven't they just switched the entire country to one or the other? Surely it would make it easier in the long run.
>>51684360
Gets even better they are the only country using 100V
>>51684300
only if you plan to use capacitors/coils as resistors
>japan has 2 different ones
baka as fuck
>>51684471
a) a shitstorm over which standard to adopt and who has to switch
b) enormous cost of modifying the grid/home cabling/whatever
easier to just make appliances compatible with both freqs.
>>51684512
>b) enormous cost of modifying the grid/home cabling/whatever
But why not gradually switch over as hardware is being replaced?
>>51684471
where do you put the old transformers and other grid equipment? It's pretty much inconsequential why waste money and time on it
>>51684471
In the long run, yes. In short term, it would be a clusterfuck and no-one cares enough to try and force change. Kind of like why US still uses the imperial system.
>>51684471
>But in that case, why haven't they just switched the entire country to one or the other?
Have you given any thought of what you just said? It would mean changing the electric supply on every goddamn house and power plant for half the country.
120 Volts is safer for electricians to work with since the shock is less likely to kill them than 240 Volts. However 120 Volts needs a fuckton of amperage to deliver the required wattage. You need a 20 AMP circuit breaker just to deliver 2.4 kW of electricity which can easily be overloaded by a fridge, microwave, and a toaster working at the same time. The solution is to add MOAR connections to the main electrical panel. It's a better solution since there are more points of failure on the main electrical panel (ie just one fuse is kill but only a few sockets won't work).
240 Volts is dangerous for electricians to work with since the shock can be enough to cause a ventricular fibrillation resulting in death. However 240 Volts needs less amperage to deliver the same amount of wattage. A 20 AMP circuit breaker can deliver almost 5kW of electricity which is very difficult to overload. It means less connections to the main electrical panel are required. The problem is if just one circuit breaker is kill an entire section of a house will be powerless. 240 Volt electrical connections are also more likely to cause house fires than 120 Volt ones.
In the end 120 Volts is the best solution to electrical wiring since it offers a safer installation and provides the home owner with less disabled socket connections if a fuse is kill and less chance of a house fire.
However sometimes 240 Volts cannot be avoided due to the fact that some AC/heating systems are imported or are designed to only work with 240 Volts. 120 Volt Electrical main panels solve this problem by providing the unit with [2] 120 Volt connections.
>>51684577
Alright, fine, it's too big of a pain in the ass, but how the fuck did it get this way in the first place? What moron sat down and though "yeah, we'll have two different standards for each half of the country, that'll be great"?
>>51684600
so, do you mean US electricians a bunch of little girls who are afraid with electricity?
>>51684553
In case of the US that's just being hipster and its countrymen being retarded, every scientific or official and legal paper in the US uses metric instead of imperial already.
>>51684612
Two competing grids with different standards created at a time when no-one realized that it would be a big deal later, basically.
>>51684315
>it's less damaging if you shock yourself I guess
Which is kind of a big deal. I've lived in the US almost all my life. I was never that scared of shocks. Plug a cable in wrong and touch the prongs and it is unpleasant, but it's not even really painful.
But then I moved to the UK. I made that mistake there and I screamed like a little girl. 240v fucking HURTS.
No wonder Europeans have such beefy plugs. They need them. If they used shitty American two-prong plugs with no safeguards, they'd all be dead.
>>51684553
The Imperial system isn't that bad. Metric is better, but Imperial is easier to use with fractions. 12 inches in a foot divides better than 100 cm in a meter. Also, people frequently talk about fractional units (e.g. 3/16 of an inch) while they only use decimals in metric.
>>51684653
>Plug a cable in wrong and touch the prongs and it is unpleasant
That's an American for you.
>>51684633
>I'll just ingnore the pros and con and call them names
Nice, anon
>>51684612
To expand on what >>51684640 wrote,
in Japan a lot of the infrastructure is in private hands (for example, the whole Tokio Metro is privately-owned). As you may imagine, this setting encourages competetiveness, improving the services, blah, blah, blah, but it also introduces the risk of fuck-ups like this one.
>>51684686
so, you're saying that japan is a cyberpunk haven?
>>51684653
>Plug a cable in wrong and touch the prongs and it is unpleasant
A M E R I C A
M
E
R
I
C
A M E R I C A
>>51684668
If you had to deal with shitty American plugs, you would regularly make the same mistake. Most of them aren't even grounded. It's appalling.
If we had 240v, we'd all die of electrocution or house fires from plugging in lamps wrong.
>>51684600
I've been shocked by 240v mains 2 or 3 times, I wouldn't recommend it but is unlikely to kill you if you don't already have a problem
>>51684653
Of course you touch the prongs when your hand is 97% fat and the fat slithers through any openings like fucking oil.
You Americans should just get a maid to do stuff for you.
>>51684653
>The Imperial system isn't that bad. Metric is better, but Imperial is easier to use with fractions. 12 inches in a foot divides better than 100 cm in a meter. Also, people frequently talk about fractional units (e.g. 3/16 of an inch) while they only use decimals in metric.
Did you consider that you can literally use 1/100th fractions with metric? What you're saying is fucking retarded.
>>51684756
>Did you consider that you can literally use 1/100th fractions with metric?
Not sure what you mean? That's just decimal.
People talk about 0.3 meters, sure, but they rarely talk about a third of a meter.
>>51684704
American plugs are cheap and nasty
BS 1363 is how to plug
>>51684633
you sound like a fag. Are you a fag irl?
>yeah, you're a fag.
>>51684653
>No wonder Europeans have such beefy plugs. They need them.
no, actually because of less voltage and therefore higher amps american plugs would have to be beefier.
>>51684653
>The Imperial system isn't that bad.
Having to convert from one to other is what's the real problem, not one being superior to the other. It creates a real potential for additional fuck-ups that wouldn't even be possible if everyone used the same system.
>>51684797
You're a real dumbfuck you know that?
We do use third of a meter or tenth of a meter.
>>51684653
>I was never that scared of shocks. Plug a cable in wrong and touch the prongs and it is unpleasant, but it's not even really painful.
Funny, I live in a 240v country and I'm not scared of shocks either.
Maybe it's because I'm not retarded.
>>51684304
Same thing with the imperial measuring system too.
It'd be too expensive to change all the education materials and infrastructure to metric due to America's size. Not sure what Liberia or Burma's excuses are though.
>le epic bash american meme
fucking /b/
>>51684633
They still have to deal with 240v just less than britbongistan has to. Also like tripfag said a 240v socket is more likely to cause a housefire.
>>51684824
>no, actually because of less voltage and therefore higher amps american plugs would have to be beefier.
potential for higher amperage
not higher amperage
lower voltage means less amps though the resistance(ie you)
>>51684600
240 volts will not shock you any worse than 120 volts since it requires less amperage, and the shock you get depends on both.
>>51684899
Lower voltage means that to supply the same amount of power, you need higher amperage.
220*A=required Wattage
120*2A=required Wattage
if you have 120 Volts you need to have 2 times the current to make things work, so you have more risk of overheating cables and heart attacks of you stick the cables up your ass.
>>51684899
What? You need double the amps with lower voltage. amps are current, that's what kills you.
>>51684612
>What moron sat down and though "yeah, we'll have two different standards for each half of the country, that'll be great"?
I imagine they just started developing it and didn't realize the problem. They couldn't just send the other workers a tweet that they are using 50hz, any communication took quite a long time during when electricity was installed.
Which is also why some places in the US use 100V or 200V or 400V... they installed the places like that, and left it like that since it worked.
>>51684633
Actually, most powerlines in USA are 240V. They just downscale it to the housing.
>>51684960
>>51684940
amps = voltage / resistance
resistance (you) stays the same.
Just because there is more current available through the breakers doesn't mean it's going to get delivered. In fact 120V will only give half the current for the same load/resistance(you)
>>51684863
Liberia was an American colony created to send black slaves back to their land.
>>51684863
But they literally change the education material every few years with whatever retarded trends come from dc like no child left behind or common core
>>51684841
>We do use third of a meter or tenth of a meter.
I think what he means is that you can divide 12 by three without any remainder, while a third of a metre would be 33.33333333(...) cm.
But that's practically the only advantage, and it only helps on certain measurements... and is offset by the fact that all conversion units are completely fucking random, while in Metric it is all base ten.
>>51684504
I've heard talk they're going to switch to 240 as well.
>>51684983
How does that work? The main lines should be in the kV range.
To downscale from 240V -> 120V you'd need two transformer stations from the main line to housing.
Or am I reading into this wrong?
>>51685029
To be fair, base 12 WOULD be pretty nice to use. Nicer than base 10, at least.
Reminder that skin has a lower impedence at 60hz than 50
Amerigans use both 120v and 240v tho :^)
>>51685029
Let's see them divide by 10
oh wait
>>51685045
>To be fair, base 12 WOULD be pretty nice to use. Nicer than base 10, at least.
As I recall ancient Romans used base 12 in their finances exactly because it allowed to divide things properly by halves, thirds, fourths, and sixths.
>>51684934
The problem is 240 Volts has an easier time of penetrating skin than 120V. You only need 0.1 - 0.2 AMPs of current to stop the heart. Even a 5 AMP 240 Volts connection can kill you.
It all depends on how grounded you are and whether the electrical connection has some kind of automatic safety shut off feature (ie GFCI).
Touching a live 240v line with your bare hands while barefoot will kill you. This is why electricians at minimum wear rubber gloves and rubber boots when working with 240 Volts.
>>51684994
Hence the name and violence
>>51685073
base64 desu senpai
>>51685038
Sorry, I worded myself wrong. The powerlines designed for housing are made with 240V in mind, to accomodate common appliances such as refrigerators and whathaveyounot. Then it downscales the 240V into 120V for regular power outlets.
>>51684841
>We do use third of a meter or tenth of a meter.
A tenth of a meter is just decimal.
And yes, you CAN use a third of a meter. But most of the time it's decimal. A set of metric tools is labeled in decimal while a set of Imperial tools is labeled with fractions. You can use fractions and decimals with both, but the Imperial system customarily uses fractions while metric customarily uses decimals.
>>51685076
>working with live wires anywhere but outside the house where youre working with voltages above 240v anyway
Except in the extreme cases where some faggot tries to wire his own house and messes it up completely so that nothing it going through a circuit breaker.
doesn't 120v mean basically double power loses than 240v?
>>51685091
64 is definitely not abundant and therefore a bad base choice. OTOH 60, which is abundant, was the base used by the Babylonian numerical system and is still used today to measure angles.
The only acceptable integer bases are either primes (unique representation of all rationals), or abundant numbers (as many easy divisions as divisors).
>>51684426
Ideally, but replacing the entire grid is a real bitch, plus many (mostly older) things require the mains frequency.
>>51685172
so it's true that americans are a bunch of ignorants
>>51685167
1/12 is the same fucking same as 0.08333333333...
just like 1/10 is the same as 0.1
The difference is simply semantics.
>>51685172
What's wrong with that? I wired my son's shed myself and the breakers kept going off so I removed them. Since then we've had no problems whatsoever.
>>51685224
More current = resistance in the wire becomes more significant relative to the actual load so it heats up the wires in the walls more even when equal current is going through.
>>51685309
Jesus Christ.
>>51685309
9/10
should have mentioned it's your wifes son
>>51685347
I know... realized the mistake too late, sadly. Sorry anon.
>>51684985
Jesus Christ thank you. How do these people confuse wattage with Ohm's law?
>>51685309
This is how you get house fires. Hope the shed isn't too close to a house.
>>51684201
Is US hipster in everything?
>>51684797
0.3 m = 30 cm = 3dm... why would you say a third of a meter? do you even decimal point you dumbfucker fuck?
>>51685513
MODS
>>51685631
>0.3
>a third
Europeans can't even into math it seems
why don't we all have three-phase 120V 120Hz???
most efficient
>>51684201
The voltage
>dickhead rips the cover off the socket because it closed on his finger
u fuckin wot m8
>>51685619
nope.
Just a broke ass country
>>51684360
Brazil uses both 120 and 240V systems.
>>51684360
So does Brazil.
>>51686281
>>51686282
Brazilians pls go
>>51684653
>The Imperial system isn't that bad.
was waiting for this. how come you measure CPU temps in °C?
also, this: >>51684668 >>51684704
>>51684304
Yea it turns out when you commercialize something way before everyone else you tend to end up with a shittier standard in the long run. Even though the difference between 120v and 240v is negligible. 120v just needs higher current which could be seen as more dangerous but 240v 1 amp is still going to kill you.
>>51684315
Less damaging? I was under the assumption 120v meant higher current which makes it more dangerous.
>>51686323
Kelvin was the acceptable standard desu senpai.
>>51686321
W-why you're so mean, senpai?
>>51684970
If your talking about japan it's because when they started using electricity the northern cities bought generators that were one standard, and the south bought generators from another country that was the other standard.
>>51686389
yes, and a difference of 1°C is the same as diff of 1°K
>>51686323
How the fuck do you measure temps in °F?
>>51686323
>how come you measure CPU temps in °C?
Because smarter people were the first to use computers and they decided to use sensible units.
>>51686463
ask the retarded murricans, they sure know
:^)
How many things you use on a daily basis other than major appliances require more than 12V? How many wall warts do you own? Maybe USB-C could become the universal standard for low voltage, while the few things that use high voltage continue on with the incumbent standards.
>>51686570
>incumbent stnadards
Just tell them to use the world-accepted standard -- 220-240V 50Hz
>>51686463
All you need to know is that 32F is 0C and there's about 2 degrees Fahrenheit every 1 degree Celsius.
You won't get accurate numbers, but you'll have an idea of how hot/cold it's outside. Besides, nobody uses the imperial system for accurate measurements.
>>51686321
I'm a Finn
>>51686688
Post you're Finn feet against Finnish flag backdrop with timestamp.
>>51686688
perkeleen vittupää
will my thinkpad work in the usa (can i charge it with my european power supply)?
>>51686724
cyka blyat xaxaxa
>>51686688
helvetti
>>51686341
The amount of current going through a circuit is equal to the voltage divided by the resistance.
>>51686746
Wrong.
>>51686733
No
Get an American power supply, it should work with your ThinkPad
>>51686776
Assuming constant temperature, right.
>>51686639
>there's about 2 degrees Fahrenheit every 1 degree Celsius.
9/5 = 1.8
>>51686733
The power brick should work. Check the voltage in rating is. If it says 100-240VAC 50/60Hz, then it will work everywhere in the world. You'll need an adapter for American plugs though.
>>51684707
Clearly you don't know how to handle a fucking electrical outlet. Lived in Amirfatland all my life and used these. Only time I ever shocked myself was as a child screwing around. Do you the the motor skills of a child?
>>51686829
Not gonna multiply by 1.8 when I can just double/halve the number with only 20% error.
>>51686859
murrican education
>>51686859
>only 20% error
That hurts to read.
>>51686570
USB-C would be awful because it transmits data as well, and niggers would just put pendrives in the wall all the time.
Plus, 12V may not be enough for all appliances. I think we'd need a bit more if we wanted to wire up houses to DC voltage.
>>51684653
>12 divides better than 100
Only if you're an idiot and don't know basic math. It also becomes more complex with higher numbers since we use base 10 math and not base 12, which means metric system is more natural and easier to understand.
>>51684201
120V
>>51686859
Imperial system is obviously the reason ameritards are bad at math
>>51684201
Electricity is not technology as it something that exists naturally. The different types of generation can be considered technology however.
Americans, dumb and impulsive as they are, only get 120V because they are more likely to stick various metal objects into their sockets and get zapped, whereas Europeans naturally have more common sense and can be entrusted with 240V sockets in their homes.
>>51684354
Why is there no noselaughing meme yet? Wtf? I'd expecr /b/ or /reddit/ to have some shit like that, I need a noselaughig meme pic to react to this wonderful reply.
>>51684600
You never cease to amaze vomit_chan
>>51687173
vomit_chan is stupid.
>>51687306
You are stupid tbqh fami, vomit_chan is weird, and might be dumb, but he literally goes out of his way to get some internet points, which amuses me a lot.
>>51687173
>>51687306
>>51687593
better than any of the tripfriends in the desktop thread tbqh senpaitachi
>>51687722
Desktop threads make me vomit, they should take their shit to /w/ seriously.
>>51684246
You are an idiot that doesn't know how electrical grids work
>>51684300
Only in how harmful it is for you
50 kills a lot easier than 60
>>51684302
Efficiency doesn't matter in this argument
All us homes are supplied with 240 but it's stepped down at the breaker box to 120 (we supply 240 to our appliances)
>>51687306
Kill yourself. Vomitchan is based. Literally one of the few tripfags I don't filter.
>>51688238
Yet 50 is more widely used.
>>51688275
Which is stupid
>>51687748
I see what you did there you you little shit.
What is 60/50Hz in that picture referring to? There's no way that's the frequency of our electrical outlets.
>>51687593
vomitchan may be one of the least dumb tripfags out there though.
>>51684201
Japan has autism
>>51684201
120 Sounds like a standard that was made into law by some ignorant politicians back in the day who wanted to make a mark on the law by MAKING HOMES SAFER by CUTTING THE ELECTRICITY IN HALF BEFORE IT ENTERS THE EVERYDAY AMERICAN'S HOME.
Does this pattern sound familiar to anyone in the modern age where ignorant, non-experts make laws regarding technology such as the Internet, or Payment Card Information (PCI compliance, anyone?)
>>51688319
Of course it is you idiot? Do you not AC?
>>51684201
>japan uses two different standards
What the fuck is wrong with those people?
>>51688350
our only hope is for every young person to vote this year
>>51688357
Different companies
Similar to how some very old homes in New York are still powered 100% with DC
>>51688306
No you little shit.
>>51688357
>Brazil uses 2 different voltages
Now that's something wrong.
>>51688406
One for the cities, one for the slums?
>>51684653
>me ooga
>plug booga
oog ooaagg
I was in China recently, and they used American-style plugs with 220V on them. I can only presume the goal of this system is to troll Americans into frying their shit and getting them to buy Chinese replacements.
>>51688441
No, one building, different voltage. So, one socket in floor 2 would be 220V, but another socket in a different floor would be 120V
>>51688469
Unfortunately, that sounds extremely plausible.
Vomit Chan is wrong
No domestic electrician works live.
120 will still fucking kill you.
Also fibrillation is from the frequency not voltage.
It's because of higher voltage, higher current and less losses due to skin effect, and smaller cable costs less.
Normies shouldn't use electricity, leave it to sparkies.
>>51688469
China uses various various types of plug, they even used the Australian type I as well as Schuko plug.
>>51688379
How do transformers work without AC?
>>51688943
They don't
https://en.m.wikipedia.org/wiki/War_of_Currents
Edison just bought giant fucking wires to send low voltage across long distances
>>51684201
The larger the power number the less the electricity gremlins can nick from the power lines. It's like with heards of sheep, there's power in numbers and more volts can protect the herd by watching for electricity gremlins.
Hope this helps.
>>51684633
>not being afraid of electricity.
ok guy. dont be afraid of the magical force that kills you makes the metal boxes talk. personally, Ill continue my worship from afar.
>>51684300
Higher frequency needs faster generators but it also can use smaller cheaper transformers.
>>51684355
Eastern Japan got rekt during WWII by America. After the war eastern Japan got rebuilt by America
>>51689699
Sorry I meant western. I can't into directions.
