What is the national standard power cord? What are the standards for power cords?

GB power cord refers to the power cord that conforms to the standards of the People's Republic of China (referred to as GB). National standard power cord is a conductive wire used to transmit electricity from the power source to electrical equipment, which is widely used in various places, such as home, office, factory, etc. It is the connecting link between the power system and electrical equipment. It is the connecting link between the electrical equipment and the power system, and plays the role of power transmission and safety protection. The national standard power cord usually consists of two parts: the wire and the plug. Wire is the main body of power transmission, it is composed of multiple insulated wires bundled together, generally two or three wires. Plug is the connection between the wire and the interface of electrical equipment, it is usually composed of plastic shell and metal pins. The standards for power cords are mainly set by the International Electrotechnical Commission (IEC) and national standardization bodies. The following are some common power cord standards: IEC 60320 standard series: This is a series of international standards that specify the dimensions, current and other parameters of plugs and sockets for various electrical equipment. Among them, C13 and C14 are the most widely used power cord models, commonly used in computers, printers, televisions and other equipment.NEMA standard series: this is the American Electrical Manufacturers Association (National Electrical Manufacturers) Electrical Manufacturers Association (NEMA) developed a series of standards, mainly used in the United States and North America. NEMA standards include a variety of models of power cords, such as NEMA 5-15 (common three-pronged plug), NEMA 5-20 (five-pronged plug), etc. GB standard series: This is the abbreviation of Chinese standards, which are formulated by the Standardization Administration of China (SAC).The GB standard specifies the technical requirements, dimensions, and rated current of various power cords. For example, GB 2099.1 specifies the standards for two-pronged and three-pronged plugs that are common in China.BS Standard Series: This is the abbreviation for British Standard, which is formulated by the British Standards Institution (BSI).The BS standard includes a variety of models of power cords, such as BS 1363 (British standard for three-pronged plugs) and BS 546 (old British standard for five-pronged plugs). 546 (the old British standard for five-pronged plugs). In addition, there are many other and regionally-developed standards, such as the JIS standard in Japan and the EN standard in Europe, for regulating power cords in their respective regions.

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