Why Japan and the United States voltage 110

You're right, high voltage is to reduce transmission losses. However, it will be unsafe for residents to use electricity if the voltage is too high, and experts believe that within 260V is more suitable for the usual insulation requirements. At present, most countries use the voltage level of 220V and 240V, and the subdivision difference is according to the needs of national conditions.

Compared with the 110V 120V power supply level, the 220V 240V power supply capacity is doubled under the same wire cross-section, which is a considerable economic benefit, as for the problem of doubling the voltage, as long as the wire is not directly touched, the difference can hardly be seen, if you don't have to be electrocuted, 110V can still kill people.

It should be noted that before the Cultural Revolution, China has always used 110V as the standard for civil power supply, and I remember that Dalian City seems to have changed to 220V power supply in 1967. I don't know when the whole country is going to be in general, so it should be done at the same time.

It's a matter of standards. It should be considered that electricity safety, compared with 220, the harm to people is much smaller.

No matter how low the voltage is, it is even less economical. Let's balance the economy and safety of electricity.

As for transmission, it is all converted to high voltage, which has little to do with low voltage.

Safe? 110 can be said goodbye today, but it is safer than 220.

It is said that because of historical reasons, the United States, Japan, etc. began to use 110, and the change also involved huge costs, subsidies, compensation, etc., like the United Kingdom and Australia.

It is also said that these 110 countries are richer because the transmission cables, electrical power cords, etc. are thicker than those of 220 countries.

The safe voltage is 36V 110V, and the electricity is still hanging to people!

That's right. However, compared with 220V, it is still safer.

Is it to reduce energy loss when transmitting electricity?

Wrong. The higher the voltage, the smaller the loss of delivered energy.

The determination of civil voltage in various countries is the result of the synthesis of various factors such as economy, technology, and concept.

Why does China use 220 volts, while the United States and Japan only use 110 volts?

In Japan, there are two types of civil voltages, 100V and 200V, and both voltages exist at the same time. For example, in a school, the electric lights have two voltages, 100V and 200V, and the electric lights in the classroom use 200V power, and the electric lights in the corridor may be 100V.

The construction must be clearly distinguished, otherwise the 200V power supply is connected to the 100V special lamp, and it will be scrapped in an instant.

Why is China's household voltage 220V, but Japan's 110V? Finally got it today!

The reason why Japan stipulated that the mains power was AC 110V in that year:

The first is for the sake of safety, because the insulation material at that time could not ensure its insulation performance under high-voltage work, and its island country, the climate is humid, and the houses where residents live are mostly wooden structures, once the wire leakage will cause huge losses;

Second, at that time, ships in the world used 110V as the standard voltage to supply power to ship equipment, and Japan's fishing and navigation industries were very developed, so it was very necessary to keep the voltage consistent in order for ships to fully use shore-based electrical energy when entering the port;

Third, in the event of a leakage incident, the harm to the human body is relatively small due to the lower voltage.

However, because the mains voltage is relatively low, the diameter of the conductor used in the transmission circuit will inevitably be thickened under the condition of maintaining the same power supply load, so that the cost of erecting the line will increase exponentially. Because China's national conditions are different from Japan, coupled with the progress of science and technology, the treatment of insulation is not a problem, it is obvious that the use of 220V voltage as residential electricity (mains) is still safe, at the same time, the main line consumption is less, and the equipment used at the same time consumes less materials and reduces manufacturing costs.

Yes. The voltage in Japan is 110V and in China it is 220V. Today's laptops come with a 100-240V 50 60Hz 90W or 60W universal power adapter.

You can see for yourself whether the notebook has the words 100-240V, 110V, 220V are in this range, you can use both sides freely, but you need an adapter plug, Japanese pen plugs are not the same as China, so you need a conversion plug.

As for the warranty issue, the general warranty of the notebook is one year, and there are few problems within one year.

In the early days of liberation, everyone should know that our country was in ruins, there was no technology, and everyone knew the relationship with the Soviet Union at that time, so we had to learn from them a lot of technology, the power system and power supply standards were all used in the Soviet Union, and the Soviet power supply standard was 380V 220V power supply mode;

We should know that the formula for calculating power is p ui, from this formula, we can see that the higher the voltage, the lower the current, and the lower the voltage, the higher the current, so the current when using 220V voltage is half of the current of 110V;

The greater the transmission current, the higher the wire requirements, that is, the lower the resistance of the wire, and at that time, the metallurgical technology of our country was really not good, and the cost of manufacturing copper was too high, so there was an aluminum wire to replace the copper wire, which was also suitable for the power supply mode of 380V 220V;

Therefore, through the analysis and comparison of many reasons, our country decided to finally use the power supply mode of 380V 220V; Now our country has been using this 380V 220V power supply mode, until now, this power supply mode and power supply standard after decades of development, now it is fully mature.

I believe that many friends will think that the 110V power supply in the United States and Japan is good, because they feel that the voltage is low and safe; In fact, this kind of thinking is completely wrong, first of all, whether it is a voltage of 220V or a voltage of 110V is not a safe voltage, the results caused by electric shock accidents are exactly the same, there is no difference at all, only the voltage below 36V is considered a safe voltage, so many friends think that the idea is wrong, don't think that these developed countries are good; In fact, they also want to change to 380V and 220V power supply, but the cost is too high to change;

In addition, when the current is transmitted, the smaller the current, the smaller the loss in the line, the current of the same 220V voltage is half of the current of the 110V voltage, then the transmission loss is half of the 110V voltage;

Finally, due to the high-voltage and low-current transmission method, a lot of non-ferrous metals such as copper can be saved, which is a large amount for our country.

It's mostly about history.

The United States, Britain and Germany are the first three countries in the world to have electricity. The voltage standards in the world are roughly inherited from these three countries, and the difference is generally about 10V (in fact, the voltage in China is also about 220V 10V due to the power supply distance, which does not affect the use).

The voltage in the United States is 120V (** and some other overseas territories are 110V), which is much lower than that of Britain and France, because the United States was the first to popularize electricity, and the engine at that time could not produce that much voltage. This standard later affected Japan (110v), and then through Japan to North Korea, South Korea, and Taiwan (and possibly because of the United States), but after the war, North and South Korea gradually began to popularize 220v under the influence of the Soviet Union and Western Europe, respectively; Some surrounding countries and regions that are deeply influenced by the United States, such as Canada, Mexico, Cuba, Colombia, and even the Cayman Islands, which is an overseas territory of the United Kingdom, also adopt the standard of about 110V-120V.

Why is the voltage in Japan 110 volts while China uses 220 volts? Tell you the answer today!

In the history of human development, the industrial revolution is a very important link, without the industrial revolution, our current society may not be so advanced, then in addition to the industrial revolution, there is also a link that makes our world develop rapidly, that is, the generation of electricity.

For electricity, we all know that the standard voltage in China is 220 volts, but in other countries, such as the United States or Japan, their standard voltage is only 110 volts, so why is that? The first reason is that in order to save resources, China needs to use a lot of metal resources in terms of electricity, and the voltage of 220 volts is lower than that of 110 volts in terms of transmission, so it can reduce the requirements for copper on the transmission power lines, and even add some other metals or alloys to the wires.

The second reason is that 220 volts can reduce a lot of costs, and the last reason is because our country has a particularly large population and many electrical appliances, if the voltage of 110 volts is likely to not meet the needs of electrical appliances.

It is determined according to the national conditions of each country.

The voltage in Japan should be 100V, and theoretically it is also a 110V voltage system, and residents can use it normally without any problems. Moreover, 110V voltage is very friendly to precision machinery, precision equipment, expensive electrical appliances and the like.

The larger the transmission current, the higher the wire requirements, that is, the lower the resistance of the wire, and in the early years, the metallurgical technology of the United States and Japan was more advanced, and the copper wire could be manufactured, so the 110V voltage power supply method was chosen.

Each country follows different principles, and initially Japan used 110V as the standard for safety reasons, but 110V is also unsafe.

Because Japan is developing so fast, the voltage used to be 110V. Later, 220V appeared, but the voltage in Japan was already laid. I can't change it.

Low-voltage transmission is relatively safe, but it consumes a lot of energy and is inefficient for long-distance transmission. However, Japan has a small land area and advanced power transmission equipment, which can meet the national electricity demand while ensuring safety.

The voltage in Japan, which is 100 V in East Japan and 110V in West Japan, is indeed less in the world at present. Many years ago, when Japan imported generators, East Japan and West Japan imported from different countries. At that time, the light bulbs produced in Japan did not change because of the reduced life of the bulb at 220V.

Actually, the United States also uses 120v.

It should be considered from the safety aspect, Japan has many natural disasters, and it will be safer if the voltage is low. This is the result of past experience and has been carried over all the time.

It must be the difference between each country! But in fact, the nature should be similar, just a numerical expression, just like our Chinese yuan and the United States dollar, so this mechanism has little to do with it, but the voltage should be the same.

Mainly according to the geographical location, Japan is an island country, the land area is small, the distance is close, so do not long-distance transmission of electricity, so the design voltage is 110 volts, and the country is vast, long-distance transmission of electric energy will lose a lot, so the voltage is designed to be very high, the main reason.

This is due to the fact that many years ago Japan imported instruments, because 220V, the life of the bulb under the voltage is shorter, so for the sake of the people, so the voltage is 110V

In the vast majority of foreign countries, the voltage is 110 volts. This is related to the design, not all countries use 220 volts.

Hello! Why is the voltage in Japan 110v? First of all, the Japanese voltage of 110V is determined according to Japan's national conditions.

Secondly, the 110V voltage is more secure. In addition, Japan is influenced by the big brother of the United States, so the voltage is set at 110V. In short, no matter how much the voltage is, electricity has always changed the life and production of human beings, and made human beings have light.

For historical reasons, the previous electrical appliances were suitable for 110V. Now, if you change it to 220V, the previous appliances will not be usable.

Mainly influenced by the United States. After World War II, many electrical equipment became American. Uses a voltage of 110v. Over time, this became the standard.

This is decided by others, it was set at the beginning, and we in China originally adopted the Russian standard, so we in China are 220 volts.