What does 2-pole power cord refer to?
The term “2-pole” denotes that the device plug is not earthed and typically includes two electrically conducting pins.
All electrical equipment was initially equipped with 2-pole plugs power cord, which meant that all mains sockets were designed for 2-pole plugs power cord cordand that all electrical equipment was not earthed. However, the danger of experiencing an electric shock increased as the number of increasingly powerful gadgets increased. By adding an earth connection, primarily in the form of a third pin, this issue was resolved. Though technically incorrect, earthed plug systems are therefore referred to be 3-pole plugs power cord.
Furthermore, 2-pole plugs power cord are not made to consistently handle high currents. For instance, damage from smouldering or burning may happen under certain circumstances if more than 2.5 amperes (or more than 500 watts) are passed through a 2-pole connector. This is because plug pins are frequently too thin to consistently withstand the heat produced by increasing power.
2-pole connectors are still used for low powerful devices (often up to 500 watts) because they can be produced more affordably.
Earthed sockets that can accommodate both 2-pole and 3-pole plugs have mostly replaced 2-pole mains sockets around the world.
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What does 3-pole power cord refer to?
Three-pole power cords are earthed and typically have three pins, two of which are used to transport electricity and one of which is for personal safety.
As was already indicated, the danger of an electric shock increased for users in the 1930s as a result of the prevalence of more potent devices (often exceeding 500 watts). An earth connection had to be added to the 2-pole socket power cord for these gadgets in order to assure safety. This earth connection was installed as a third pin in all plug types.
The Schuko plug, which has an earth connection made of metal contact surfaces and is positioned on the plug’s side, is an exception to this rule.
It is important to highlight that cutting off the earth connection is dangerous because there would be no longer be defense against electric shock. This earth connection has been built as a leading connection in all 3-pole plug power cords that adhere to the standards, which means that it shuts the contact before the other two pins make power contact.
At the same time, 3-pole earthed sockets, which can accommodate both 2-pole and 3-pole plug power cords, have largely replaced 2-pole mains sockets around the world.
Our 3-pole power cord are available here!
Post time: Oct-22-2022