Bare Stranded Copper Wire Size Chart

36 7 44 0 0020 0 006 28 00 0 09 371 00.

Bare stranded copper wire size chart.

The n gauge wire diameter d n in millimeters mm is equal to 0 127mm times 92 raised to the power of 36 minus gauge. A detailed description of each conductor. Hard drawn and medium hard drawn per astm b 1 b 2. Bare copper conductors are primarily used for grounding purposes as specified in the national electrical code.

Stranded conductors offer greater flexibility than solid 250 kcmil 1 000 kcmil. Medium hard drawn tempers are also available in solid and stranded. Break strength lbs kg maximum dc resistance ohms 1 000 ohms km circular area 56 1 s solid 0 00049 0 0124 0 24 0 00012 0 00070 0 001 0 0066 0 00. Sizes 14 thru 2 are available in solid.

The n gauge wire diameter d n in inches in is equal to 0 005in times 92 raised to the power of 36 minus gauge number n divided by 39. Standard specification for concentric lay stranded copper conductors hard medium hard or soft engineering information conductor. Wire gauge calculations wire diameter calculations. Alan wire bare copper conductors are normally annealed soft copper solid or stranded.

In addition to wire size the table provides values load current carrying capacity resistance and skin effects. Mil area1 000 ft 1 000 ft. American wire gauge size calculator and chart. Stranded bare copper and aluminum conductors dimensions nominal conductor conductor diameter size area wire diameter class b standard compressed round compact round awg cir mils mm 2 sq in no.

B 3 soft or annealed copper wire. Soft bare copper solid or classes a or b stranding per astm b 3 and b 8. 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. B 1 hard drawn copper wire.

Stranded bare copper bare or tinned soft annealed medium hard or hard drawn stranded bare copper. B 33 tinned conductors b 787 19 wire combination unilay stranded. The resistances and skin depth noted are for copper conductors. D n in 0 005 in 92 36 n 39.

For every three steps in the gauge scale wire area and weight per unit length approximately doubles. The american wire gauge awg measurement system was designed with a purpose. Annealed copper wire astm b8. Southwire s bare copper wire and cable meets or exceeds the following astm specifications.

Lbs ohms per sizestrandsof strand o d. B 2 medium hard copper wire. Stranded wire data chart awg of nom. Of wires mm in mm in mm in mm in 20 1020 0 517 00080 7 0 31 0121 91 036.

Suitable for use in electrical grounding systems including counterpoise grounding and on insulators for overhead transmission and distribution applications. Sizes 8 thru 2 are available in 7 strand. This is a handy rule to remember when making rough wire size estimations. Also available in tinned copper.