What’s the difference between 220V and 110V?
The civilian voltage in China is 220V, and the voltage in some countries is 110V.
Jiangxi Yikai Electric will discuss with you the difference between the voltage 220V and 110V.
We all know that our country’s civilian voltage is 220V.
Some friends who have been to Japan and the United States may also know that their civilian voltage in the United States and Japan is 110V,.
In general, the voltage in the world can be divided into 220V area and 110V area.
Currently, more than 120 countries use 220V voltage, and more than 30 countries use 110V voltage.
In some countries, two voltages exist at the same time.
In fact, China did not have a unified standard when it began to use AC power in the late Qing Dynasty.
It was not until 1930 that the government announced that the standard of China ’s voltage was 220V.
In the United States, the earliest DC power supplied by Edison ’s General Electric Company was 110V, Japan 110V is also used.
Comparing the two voltages, from a safety point of view, 110 is stronger than 220V, but both are fatal to humans.
In actual operation, the disadvantage of 110V voltage is more obvious than 220V voltage.
First of all, under the condition of delivering the same power, 220V has less loss than 110V,
and considering the actual route interference and loss, 220V high-voltage electricity is transmitted farther.
The voltage is doubled, which can save half of the cross-sectional area of the wire Power line.
Finally, the frequency of 220V50 Hz is lower than that of 110V60 Hz.
The motor power volume is smaller, and the materials for manufacturing the motor are more saved.
In fact, some countries have considered changing 110V voltage to 220V, but people are accustomed to using 110V voltage, and home appliances are 110V.
tt is relatively difficult to adjust, so the progress of replacing voltage is slow.
However, some countries have not given up their efforts.
They have developed a two-way power supply method.
The citizens choose the voltage according to the power of the electrical appliances.