China, Hongkong, Germany, France, Belgium, India, Netherlands, Norway and Britain: 230 V;
Taiwan Province, China:110v;
Japan:100v;
South Korea, Philippines and Brazil:110/220v;
Canada, USA:120v; ;
Mexico:127v;
Italy and Spain:127/220v;
Australia: 240 volts
Extended data
The domestic voltage in the world is mainly divided into 1 10V and 220V, and this differentiation started from the initial stage of power consumption.
100 years ago, the use of electricity was still in its infancy, and the most widely used electrical appliance was the carbon filament incandescent lamp for lighting. Edison found that the carbon filament incandescent lamp works well under the DC voltage of 1 10V, so he decided that the DC voltage of 1 10V can support the operation of electrical appliances and is economical and safe.
With the gradual development of electric power, the AC system of Tesla, another electrical giant in the United States, rises. Because the transformation was easy, and the long-distance transmission loss of alternating current was smaller at that time, alternating current was widely used instead of direct current in the United States. Considering the safety factor, the voltage level of AC system is also set as 1 10V, forming a standard.
At that time, voltage transformation and high voltage transmission were not common, and the voltage of 1 10V was low, so the power loss of transmitting the same power was still relatively large. Europe found this problem when introducing electricity, so it doubled the voltage specification to 220V V V.
Therefore, the residential voltage in most countries in North America is around 1 10V, while in most European countries it is around 220V. Due to historical reasons, Japan adopted a voltage standard similar to that of the United States.
As for China's civil voltage, the early specifications were chaotic and there was no unified standard. After the founding of New China, the industrial development mainly referred to the Soviet model, and the power grid construction adopted European standards, which was more suitable for the national conditions at that time.
There is no obvious difference between 1 10V and 220V, and both of them can work well. As for safety, 1 10V and 220V are much higher than safe voltage's 36V.
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