Power cords come in two varieties: 2-core or three-core. The type of power cord you choose depends on the number of phases your power supply has. For a domestic distribution system, 2-core cable is typically used. These cords contain two wires: the live wire and the neutral one. They may have an additional, smaller wire called a grounding or earth wire. This wire is green. The power cord should be able to supply the appropriate voltage to your electrical devices.
Regardless of the type of power cord you need, you should always choose a UL-listed cord with a high-quality rating. While power cords are commonly used in home electrical systems, they can also be used in industrial settings. In the workplace, they can be used in assembly lines, bar code readers, and material-handling equipment. And they are widely used in computers and other electronics. So, whether you use a computer, laptop, or phone at home, make sure you have the right power cord to meet your needs.
Consumer electronics and information technology equipment use power cords, which are rated according to the AWG (American wire gauge) and mm2 (millimeters) size. In addition, most cords are made from polyvinyl chloride (PVC). However, rising environmental regulations have significantly altered generator extension cord the use of PVC and its exportability. Therefore, when purchasing a power cord, make sure you ask for a RoHS or REACH declaration so you can rest assured that it is compliant with the applicable standards.
NEMA power cords are rated for 125-600 volts and 15-60 amps. Plugs and receptacles are numbered according to their voltage capacities and shapes. In North America, NEMA type A and B are common. Type A cords come with two conducting blades, while Type B cords have an additional ground rod. Then, there are UL and CE-certified power cords for use in Europe.
The voltage and kilovolt rating of power cords is determined by their gauge rating. Wire gauge is a basic measurement for determining the current carrying capacity of a cord. The higher the AWG number, the thicker the wire. Longer power cords also have a higher risk of voltage drop, whereas shorter cords maintain the same power level from outlet to plug. It’s essential to buy cords in accordance with the standards set by manufacturers.
In addition to IEC 60320, there are various national standards for power cords. For example, in Canada, power cords manufactured under the Canadian standard IEC 60320 are generally recognized as being compatible with appliances in the same country. In IEC 60320, the standard specifies different types of connectors that can withstand varying voltages, currents, and temperatures. Moreover, a C13 cord may also be used for high-temperature devices.
If you use power cords frequently, it is important to purchase those with locking features. A-lock power cords have locking mechanisms at both ends and are useful in cases of heavy machines. V-lock cords have a yellow release mechanism and cannot be undone by human error. Another type of locking power cord is an IEC lock. These are most useful for devices that use the IEC type of plug. Many medical devices and broadcasting equipment rely on IEC locks.