Awg wire dimensions. American wire gauge awg is a standardized wire gauge system for the diameters of round solid nonferrous electrically conducting wire. This is a handy rule to remember when making rough wire size estimations. American wire gauge awg also known as the brown sharpe wire gauge is a logarithmic stepped standardized wire gauge system used since 1857 predominantly in north america for the diameters of round solid nonferrous electrically conducting wire. The american wire gauge awg measurement system was designed with a purpose.
Awg wire sizes the american wire gauge awg also known as the brown sharpe wire gauge is a standardized system for defining the diameter of conductive wires. The smallest awg size is 40 and the largest is 0000 40. The system of notation for measuring the size of conductors or wires. For the 00 000 0000 etc.
The n gauge wire diameter d n in inches in is equal to 0005in times 92 raised to the power of 36 minus gauge number n divided by 39. Wire gauge calculations wire diameter calculations. Dimensions of the wires are given in astm standard b 258. Gauges you use 1 2 3 which makes more sense mathematically than double nought this means that in american wire gage every 6 gauge decrease gives a doubling of the wire diameter and every 3 gauge decrease doubles the.
D n in 0005 in 92 36 n39. For very large wire sizes fatter than 40 the wire gauge system is typically abandoned for cross sectional area measurement in thousands. Wire stranding charts solid and stranded conductor awg chart awg size total strands strand size type construction nominal diameter inches mm mils mm2 approimate weight lbs 1000 kg km nom. Awg general rules of thumb for every 6 gauge decrease the wire diameter doubles and for every 3 gauge decrease the cross sectional area doubles.
In der im rahmen der globalisierung einhergehenden internationalisierung der fertigung technischer produkte ist die kodierung in zahlreichen weiteren industriestaaten ein thema. Also with conductor sizes 250 kcmil and larger we are no longer in the american wire gage system. 3 awg copper or no. American wire gauge abgekuerzt awg im englischsprachigen raum auch unter der bezeichnung brown sharpe wire gauge bekannt ist eine kodierung fuer drahtdurchmesser und wird ueberwiegend in nordamerika verwendet.
In north america the most wire is produced in the standard american wire gauge awg sizes listed in table 2. 2 aluminum conductor provided voltage drop is not a factor. For every three steps in the gauge scale wire area and weight per unit length approximately doubles. The larger the gauge number the smaller the wire size.
Break strength lbs kg maximum dc resistance ohms 1000 ohms km circular area 56 1 s solid 000049 00124 024 000012 000070 0001 00066 000. Therefore the two awg size rule can no longer apply. American wire gauge system. The table below is a guide only and there are many factors such as alloy composition ambient temperature and airflow which come into play.
American wire gauge size calculator and chart.