The connectors and pins for electrical appliances in general electronic products are called plugs. Household AC power plugs and sockets, with male connectors protruding in the shape of rods or copper plates, physically inserted into female connectors with slots or recesses. Size is an important technical requirement that affects the safe use of plugs, sockets, and converters, as well as whether they meet universal interchangeability requirements to avoid accidental insertion. Unqualified dimensions can affect users' use or create hidden dangers such as poor contact and incorrect insertion. It can cause equipment damage, and in severe cases, it can lead to fire and electric shock accidents. According to the safety certification classification, UL/UL, VDE, CCC, T-MARK, SAA, BSI, PSB, SABS, PSE, SNI, UC and other North American standard plugs are manufactured according to NEMA 1-15, 5-15, 5-20, 6-15, and 6-20P plug standards. The plug with cylindrical grounding in the middle of the American standard two flat parallel plugs is subject to NEMA (American Electrical Manufacturers Association) management and UL certification. The standard for plugs and sockets in Canada is CSA C22.2 No. 42. Plugs that comply with the NEMA 5-15P output style are also used in countries such as Mexico, Japan, South Korea, Central America, Colombia, Venezuela, Ecuador, and the West Coast of South America. In developing countries, power systems are usually ungrounded. UL certified and CSA certified plugs. It can be paired with various sizes and types of cables, mainly used for data transmission, such as power servers, computer data storage systems, network equipment, and industrial equipment. Standard 15A/125VAC plugs are widely used, while high current 20A/250VAC plugs are rarely used. The American standard injection molding power cord and plug are easy to use and easy to install in medical institutions, with a dedicated medical grade plug system. On one side of the wire is an IEC-60320 connector with a rated current of 10A. 15A/125VAC maximum output rating
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