Bare Copper Wire Size Chart

Solid and stranded.

Bare copper wire size chart.

American wire gauge size calculator and chart. The cross sectional area of each gauge is an important factor for determining its. 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 awg standard includes copper aluminum and other wire materials.

Telephone wire is usually 22 24 or 26. The american wire gauge awg measurement system was designed with a purpose. 75 c 167 f thw thwn se use xhhw. Stranded conductors offer greater flexibility than solid 250 kcmil 1 000 kcmil.

D n in 0 005 in 92 36 n 39. A detailed description of each conductor. Bare copper wire and cable bare copper conductor. For every three steps in the gauge scale wire area and weight per unit length approximately doubles.

Dimensions of the wires are given in astm standard b 258. 60 c 140 f nm b uf b. The resistances and skin depth noted are for copper conductors. 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.

90 c 194 f thwn 2 thhn xhhw 2 use 2. In addition to wire size the table provides values load current carrying capacity resistance and skin effects. Wire gauge calculations wire diameter calculations. 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.

Stranded conductor of greater flexibility classes b and c are suitable for uninsulated hook up jumpers and grounds in electrical construction. Typical household copper wiring is awg number 12 or 14. This is a handy rule to remember when making rough wire size estimations. Suitable for use in electrical grounding systems including counterpoise grounding and on insulators for overhead transmission and distribution applications.

Applications solid and stranded classes aa and a bare copper are suitable for overhead transmission and distribution applications. Of wires mm in mm in mm in mm in 20 1020 0 517 00080 7 0 31 0121 91 036. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f. The higher the gauge number the smaller the diameter and the thinner the wire.

Stranded bare copper bare or tinned soft annealed medium hard or hard drawn stranded bare copper. The circular mil cm is a unit of area used especially to denote cross sectional size of a wire.