Over the years, electrical wiring has become an important component of daily life. From running power to our everyday appliances, to controlling motion and communication systems, electrical wiring is integral for nearly every aspect of modern life.
However, one challenge that comes with electrical wiring is determining the optimal size for a wire. This determination is largely determined by the cross sectional area of the wire, which is measured in millimeters squared (mm2) or American Wire Gauge (AWG).
The AWG system was developed in the late 19th century, and was designed to give an accurate measure of a wire's diameter, which is essential for determining the overall strength of the wire and knowing what type of application it can be used for. For example, wire in the 14 AWG range is generally used for residential applications, while wire in the 6 AWG range is typically used for commercial projects.
Knowing the wire size in mm2 is key when converting it to the corresponding AWG size. Generally speaking, the higher the mm2, the lower the AWG size. This means that a wire with a cross sectional area of 1.0 mm2 would correspond to 16 AWG, while a wire with a cross sectional area of 70.0 mm2 would correspond to 2 AWG. The table below gives a more complete overview of the possible conversions between mm2 and AWG sizes:
Size In mm2 Size In AWG
1.0 16
4.0 14
10.0 12
16.0 10
25.0 8
35.0 6
50.0 4
70.0 2
When selecting a wire size for any electrical project, it is important to consider the current needs of the application and always go for the highest quality wire available. With the different wire sizes available in mm2 and AWG, you can easily find the correct size for your project and ensure that your electrical wiring job is done correctly.
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