1) Current ratings for up to 1000 V , PVC-insulated single and multicore wiring cables, ambient temperature up to 30 oC
Download and print AWG chart
Values for resistance are based on electrical resistivity for copper 1.724 x 10 -8 Ω m (0.0174 μΩ m) and electrical resistivity for aluminum 2.65 x 10 -8 Ω m (0.0265 μΩ m).
The higher the gauge number, the smaller the diameter, and the thinner the wire.
Because of less electrical resistance a thicker wire carries more current with less voltage drop than a thinner wire. For longer distances it may be necessary to increase wire diameter - reducing the gauge - to limit voltage drop.
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