Power sockets and plugs vary in appearance, rating, size and type depending on the country and region. Each country has standards set by the government.
Power plugs, also known as power cord plugs, or power plugs in English, are used in a variety of areas and countries.
Depending on the purpose of the power plug, the power cord plug can be used in 250V, 125V, 36V voltage, and depending on the current, it can be used in 16A, 13A, 10A, 5A, 2.5A. The frequency is generally 50/60Hz.
At present, the world's electricity plug there are a variety of standards, China standard plug (national standard), the United States standard plug (American standard), the European standard plug (European standard, German standard), the British standard plug (British standard) and the South African standard plug (South African standard) and so on.
The GB plug is used in China, Australia, New Zealand, and Argentina and is characterized by three flat heads.
American Standard plugs are used in the United States, Canada, Japan, Brazil, the Philippines, Thailand and other countries and Taiwan, characterized by one round and two flat.
British Standard plugs are used in countries or regions such as the United Kingdom, India, Pakistan, Singapore, Malaysia, Vietnam, Indonesia, Maldives, Qatar and Hong Kong and are characterized by three square heads.
The European Standard (German Standard) plug is used in Germany, France, the Netherlands, Denmark, Poland, Finland, Norway, Austria, Belgium, Hungary, Spain, Sweden and other EU countries, as well as South Korea, Russia and other countries, characterized by two round heads.
The South African standard plug is mainly used in South Africa, India, and Russia and is characterized by three rounded ends.
In addition, there are also Italian standard plugs (Italian standard), Swiss standard plugs (Swiss standard) and so on.
Power plugs are generally categorized into 2-prong power plugs, 3-prong power plugs and multi-prong power plugs.
2-prong power plug: 2-prong power plug, as the name suggests, is a plug with two blades or two pins, the specific blades or pins, each national standard is not the same, for example, China's is two blades, Europe's is two round pins.
3-prong power plug: 3-prong power plug, as the name suggests, is a plug with three blades or three pins or two blades or two pins plus a grounding hole. This structure is more complex than the 2-prong power plug, the size and diameter of the pins and what the standards have great requirements, the length and the distance between the pins are factors to consider.
Multi-core power plugs: according to customer requirements, according to the reality to consider.
The wiring color of the three-prong power plug is usually brown, blue and yellow-green, of which brown is the fire wire, blue is the zero wire, and yellow-green is the ground wire.
Corresponding to the power cord, three-prong power plugs are marked with E, L, N. Generally, the left fire wire L, the right zero wire N, on the ground wire E. As long as the corresponding color with the power cord connected to the right.
L commonly used core wire color: black or teal (also known as brown, brown). These two colors are commonly used for U.S. and Japanese standards, and teal (brown, curry) for European standards.
N Common core wire colors: white, red, light blue. These three colors are commonly used for U.S. and Japanese standards, while light blue is used for European standards.
N common core wire colors: green or green-yellow (yellow-green or green-yellow or yellow-green). These two colors are commonly used for U.S., Japanese, and European standards.