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'''American wire gauge''' ('''AWG''') is a standard wire gauge system used predominantly in the United States and Canada for the diameters of a single non-ferrous, solid, round conductor.<ref>ASTM Standard B 258-02, ''Standard specification for standard nominal diameters and cross-sectional areas of AWG sizes of solid round wires used as electrical conductors'', ASTM International, 2002</ref> Increasing gauge numbers give decreasing wire diameters.
== Single core and stranded ==
The cross-sectional area of each gauge is an important factor for determining its current-carrying capacity and resistance. The AWG of a stranded wire is determined by the total cross-sectional area of the conductor. Because there are also small gaps between the strands, a stranded wire will be about 5% thicker than a solid wire with the same AWG.
== AWG/Metric wire size equivalents ==
In Europe, wire size is expressed as the number of strands and cross sectional area in mm<sup>2</sup>. For example. 7/0.2 means 7 strands of wire each 0.2mm diameter. In America the AWG numbering scheme is applied not only to individual strands but also to equivalent size bunches of smaller strands. For example. 24 AWG could be made of 1 strand of 24 AWG wire (1/24) or 7 strands of 32 AWG wire (7/32). Standard metric wire sizes do not correspond exactly to American wire sizes. The table below provides approximations of the closest equivalents for the wires most commonly found in the audio industry.<ref name="canford">[http://www.canford.co.uk/Technical/Article/MetricAWGWireSizeEquivalents Metric/AWG wire size equivalents]</ref>
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{{From Wikipedia|American_wire_gauge}}
== References ==
{{Reflist}}
== Further reading ==
* Donald G. Fink and H. Wayne Beaty, ''Standard Handbook for Electrical Engineers, Eleventh Edition'',McGraw-Hill, New York, 1978, ISBN 0-07-020974-X, page 4-18 and table 4-11.
* [http://www.wavetechnology.org/FREEBIES/AWG_resistance_gauge_dave.pdf Wire-Size Gauge (AWG) vs. Resistance…what’s REALLY with this AWG stuff?] by Dave Wissel
== External links ==
* Wikipedia:[https://en.wikipedia.org/wiki/American_wire_gauge American wire gauge]
* Wikipedia:[https://en.wikipedia.org/wiki/Standard_wire_gauge Standard wire gauge]
* [http://www.simetric.co.uk/siwire_elect.htm Electrical Wire Conversion Tables]
[[Category:Wiring]]
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