Original link: http://loonlog.com/2023/7/14/world-voltage-and-power-cord-plug-standards/
1. Overview of voltage specifications in various countries
At present, there are generally two types of voltages used in indoor electricity in various countries in the world, namely 100V-130V and 220-240V.
100V, 110-130V are classified as low-voltage, such as the voltage on board in the United States, Japan, etc. The reason for using low-voltage is mainly for safety; 220-240V is called high-voltage, including 220 volts in China and 230 volts in the United Kingdom Like many European countries, the emphasis is on efficiency.
In countries that use 220-230V voltage, there are also cases where 110-130V voltage is used, such as Sweden and Russia.
The voltage classification of each country is as follows:
①100V: Japan.
②110～130V: Taiwan, the United States, Canada, Mexico, Panama, Cuba, Lebanon and other 30 countries.
③220～230V: China, Hong Kong (200V), South Korea, Britain, Germany, France, Italy, Australia, India, Singapore, Thailand, Netherlands, Spain, Greece, Austria, Philippines, Norway about 120 countries.
2. Introduction of various plug models
3. Comparison of voltage and plugs in various countries in the world
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