Inquiries about voltage in Japan and China

Don't worry! Japan's civilian power supply voltage is indeed AC 110V! Your laptop's external power supply and camera battery charger can be used normally, as you said above, "My laptop's transformer says 100V-240V 50Hz-60Hz", and the voltage value marked includes 110V.

Our commonly used laptop external power supplies and camera battery chargers have advanced switching power supply circuits inside to accommodate a wide range of input voltages. However, it should be noted that the external power supply or charger used by some domestic electrical appliances is a transformer step-down rectifier circuit, and the shell indicates that the input voltage is 220V (or English IN: 220V), which cannot be used in the 110V power supply!

In Japan, the phase voltage is 110V, the line voltage is 190V, and the frequency is 60Hz. Nowadays, many electronic products apply switching power supplies, which can adapt to a wide range of voltages and can work between 110-220V; General electrical appliances need to be equipped with a 110:220 transformer.

The civil voltage in Japan is 110V (50Hz and 60Hz).

Your laptop transformer says 100v-240v, 50hz-60hz, you can use it.

It's best to have a two-to-three-end socket, which you'll need for many occasions.

100-240V can be used for 110V, and other non-standard cannot be used.

Absolutely. Otherwise, it will be difficult to have enough power.

The electricity in Japan is 110 volts.

The voltage in Japan is 110 volts, and in China it is 220 volts, so electrical appliances in China and Japan are generally not universal.

The reason why the voltage in Japan is 110 volts:

1. 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.

2. At that time, ships in the world used 110V as the standard voltage to supply power to ship equipment, and the fishery and navigation industry were very developed, so it was very necessary to keep the voltage consistent in order to fully use shore-based electrical energy when ships entered the port.

3. In the event of a leakage incident, the harm to the human body is relatively small due to the low voltage.

However, because the mains voltage is relatively low, the diameter of the wire used in the transmission circuit must be thickened under the condition of maintaining or concealing the same power supply and power load, so that the cost of erecting the line is doubled. <>

It's the same, but Japan doesn't have a triple plug.

The voltage in Japan is 110V low voltage, so if you bring electrical appliances to Japan, it is better to buy a small transformer.

It's 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 such a large 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.

In the early days of the UK, the voltage was 240V, and later it was changed to 230V in order to unify with the EU Standard Bibi Chain Standard. Most Commonwealth countries and British Overseas Territories inherit this standard, such as Australia, New Zealand, India, Nigeria, etc., 240V, Malaysia, Singapore, Pakistan, etc. 230V. However, there are exceptions, such as Canada, Jamaica and other countries, which are 110V due to the influence of the United States; Hong Kong adopts the 220V standard considering the use of power imported from Chinese mainland.

In the late 19th century and early 20th century, most of the Middle Eastern countries belonged to the British sphere of influence, so most of the voltages also adopted the British standard, around 230-240V.

The voltage in Germany is 230V, and under its influence, almost the entire European continent has a voltage around 220V-230V. Most of their former colonies in Asia, Africa and Latin America also adopted this criterion. Most of the countries of the former Soviet Union are 220V (Russia is now gradually changing to 230V), and China, Mongolia, Vietnam, etc., are also 220V because of the implementation of Soviet standards.

The voltage standards of countries around the world are roughly in accordance with the following laws:

110-120V: The United States, Japan and its neighboring countries repented of the Sunhe region.

230-240V: UK and most Commonwealth member states, most British Overseas Territories, most Middle East countries.

220-230V: Continental European countries, and most of their former colonies; Member states of the former Soviet Union, as well as countries deeply influenced by the Soviet Union.

Summary. Japanese voltage 100 volts, 50 60 Hz.

Japanese voltage 100 volts, 50 60 Hz.

In the early days, Japan followed the voltage standard of the United States**, using 110V, which later affected North Korea, South Korea, and Taiwan. After the war, the two Koreas were influenced by the power supply standards of the former Soviet Union and Western Europe, and gradually popularized 220V. Japan has also made minor voltage improvements, changing the 110V to 100V.

According to the Agency for Natural Resources and Energy of the Ministry of Economy, Trade and Industry, Nissin says, "Low voltage has little impact on the human body, and 100V is preferred for safety." ”

Historically, there was a 110V power grid, which was limited by the performance of the generator at that time, but later there was a better 220V alternating current, other countries could implement it, and all electrical appliances in their country could not be forced to scrap and buy 220V, which involved the transformation of the power grid and the replacement of all power grid substation equipment, so the 110V country was extended.

Voltage, also known as potential difference or potential difference, is a physical quantity that measures the difference in energy between a unit charge in an electrostatic field due to different potentials. Its magnitude is equal to the work done by a unit positive charge to move from point A to point B due to the action of an electric field force, and the direction of the voltage is specified as the direction from the high potential to the low potential. The SI unit system of voltage is volts (V, referred to as volts), and the commonly used units are millivolts (mV), microvolts (V), kilovolts (kv), etc.

This concept is similar to the "water pressure" caused by the high and low water level. It should be pointed out that the term "voltage" is generally only used in electrical circuits, while "potential difference" and "potential difference" are generally applied to all electrical phenomena.

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

The electricity in Japan is 100 volts.

In the early days, Japan followed the voltage standard of the United States**, using 110V, and later this voltage standard affected South Korea and Taiwan, China. After the war, South Korea was influenced by the power supply standards of the former Soviet Union and Western Europe, and gradually popularized 220V.

Japan has also made minor voltage modifications, changing 110V to 100V. The Ministry of Economy, Trade and Industry of Japan said that the impact of low voltage on the human body is small, and the safety is inclined to use the volt working voltage compared to 220 volts, which is characterized by the low voltage relatively high safety factor, and the smaller the working voltage under normal circumstances, the safer and more reliable.

Advantages of 100 volts

1. Higher efficiency: 100 volts can transmit energy more efficiently and reduce energy loss. Compared to other voltage levels, it has less current and therefore less heat, avoiding damage to equipment due to overheating.

2. Longer working life: Because the current of 100 volt voltage is smaller, the equipment generates less heat after working for a long time, so it can prolong the working life of the equipment.

3. Higher safety: 100 volts voltage is safe for the human body, and Wang Yan will not cause much harm to the human body. Compared to other high-voltage voltages, it has less impact on the human body and is therefore safer.

4. Better stability: 100 volt voltage has better stability, which can better cope with load changes and interference, and ensure the stable operation of the equipment.

5. Smaller equipment volume: Due to the small current of 100 volt voltage, the volume and weight of the equipment can be reduced, making the equipment more portable and portable.

The above content refers to Encyclopedia - Japan

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.

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

The Japanese voltage standard is 100 volts, and the types of sockets used are Type A and Type B (according to IEC 60320 standard).

Domestic voltage: (Frequency: 50 60Hz)

1. Residential nominal electric pressure: single-phase 2-wire 100V single-phase 3-wire 200V.

2. Industrial nominal voltage: 3-phase 3-wire 200V.

The east and west of Japan are different power grids, and the phase voltage is 120V 60Hz and 220V 50Hz respectively, and at the same time, it is connected to the triangular stool used by the residential electricity at the same time, so the line voltage and phase voltage are equivalent in Japan.

The Japanese voltage standard is 100 volts and the frequency is 50 Hz. This voltage is suitable for domestic and commercial electricity consumption in Japan. Japan's use of 100 volts is to ensure the stability and safety of electricity.

This voltage standard is determined by Japan's Shousoku Electric Power System**, and it also conforms to Japan's domestic electrical equipment standards. As a result, Japanese electrical equipment is generally suitable for 100 volts.

Domestic voltage: (Frequency: 50 60Hz)

1. Residential nominal electric pressure: single-phase 2-wire 100V single-phase 3-wire 200V.

2. Industrial nominal voltage: 3-phase 3-wire 200V.

The east and west of Japan are different power grids, and the phase voltage is 120V 60Hz and 220V 50Hz respectively, and at the same time, it is connected to the triangular stool used by the residential electricity at the same time, so the line voltage and phase voltage are equivalent in Japan.