Power cords can be two-core or three-core depending on their number of phases. A two-core cord is the most common and is commonly found on information technology equipment and consumer electronics. The first two wires in a power cord are called the live and neutral wires, and the third is the earth or grounding wire. Each of these wires is marked and regulated according to international standards and regulations. Here are some common types of power cords.
Generally, a power cord set consists of a flexible cord with electrical connectors on both ends. The female connector connects to an electrical outlet while the male connector connects to a piece of equipment. Cord sets are available in various lengths, and the length of a cord set is determined by how many outlets and sockets it needs to connect to. Most cord sets have three or four outlets. Cords are typically UL listed for safety.
Different countries have different plug standards. In North America, plug patterns are determined by the National Electrical Manufacturers Association (NEMA). Certification agencies such as UL and CSA have standardized the plug patterns of most power cords. Similarly, North American and Japanese cords may look similar, but they are different. A North American cord does not contain the Japanese approval temporary lighting symbol while a Japanese cord does. A power cord is only a good choice if the cord is approved by these standards.
In addition to the types of plugs, power cords are also available with three or two-conductor versions. They are designed to fit into a small space and prevent damage to the cord. There are also right angle cords, which plug into sockets with two or three prongs. These cords are available in two or three-conductor versions, and are the most commonly used cord for laptop computers. These power cords are UL-listed and come in a variety of colors and lengths.
For North American power cords, NEMA 5-15P plug and receptacle configurations are commonly used. NEMA 5-15P plugs, which are three-wire circuits, are commonly used in sockets. They have a 15-amp capacity. A NEMA 5-15P to NEMA 5-15R power cord is the most common. NEMA also produces C13 and C15 power cords. In Europe, CEE 7/7 sets the standards for plugs and receptacles.
IEC 60320 is a standard for power cords for appliances. Though countries use different standards for power cords, most countries recognize this international standard. C13 power cords use a type of coupler connector and are generally used for computers. These cords have different voltages, currents, and temperatures. This means that they may not work for every country. You can also find an IEC 60320 power cord in your country, if you’re worried about compatibility.
Another type of cord is the detachable type. Detachable power cords make connecting to different appliances easy. In the case of an AC power cord, the receptacle will have an extra prong for grounding. These plugs are designed with a plastic molded body that separates the two prongs and affixes a power supply cord to the body. Electricity flows through the cords’ blades to the blade-cord connection.