What is the difference between British standard, European standard and national standard plugs?

1, the European standard plug is two circles, the national standard plug is two or three flat plugs, and the British standard plug is characterized by three square heads.

2, the working voltage is also different. The standard voltage of sockets in China is 220V, while the standard voltage of sockets in Europe and Britain is 230V V. Different voltages indicate that the maximum power that the socket can carry is also different.

3. National standard sockets are mainly used in China (except Hong Kong), and British standard plugs are used in Hong Kong, Britain, India, Pakistan, Singapore, Malaysia, Vietnam, Indonesia, Maldives, Qatar and other countries and regions; Germany, France, Netherlands, Denmark, Finland, Norway, Poland, Portugal, Austria, Belgium, Hungary, Spain, Sweden and other EU countries, as well as South Korea, Russia and other countries all use European standard plugs.

Extended data

Plug can be divided into:

Headphone plug, DC plug, audio plug, usb plug, video plug, microphone plug, charger plug, mobile phone plug, etc. Internationally, household appliances are divided into three categories:

Class I: Electrical appliances refer to those with only one layer of insulation measures. This kind of electrical appliance must be equipped with leakage protector and grounding protection (that is, three-pin plug). Such as air conditioners, machine tools, motors, etc.

The second category: electrical appliances have double insulation measures, so it is necessary to add a leakage protector without grounding protection (that is, two-pin plugs can be used). Such as: TV, electric fan, desk lamp, induction cooker, ceramic electric stove, etc.

Category III: Electrical appliances are from safe voltage, generally 12-36V, such as mobile phones and notebook computers.

Reference source: Baidu Encyclopedia -Plug