Bare Copper Wire Size Chart

Stranded conductor of greater flexibility classes b and c are suitable for uninsulated hook up jumpers and grounds in electrical construction.

Bare copper wire size 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. 60 c 140 f nm b uf b. The cross sectional area of each gauge is an important factor for determining its. Of wires mm in mm in mm in mm in 20 1020 0 517 00080 7 0 31 0121 91 036.

D n in 0 005 in 92 36 n 39. 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. The circular mil cm is a unit of area used especially to denote cross sectional size of a wire. Bare copper wire and cable bare copper conductor.

The awg standard includes copper aluminum and other wire materials. The resistances and skin depth noted are for copper conductors. The american wire gauge awg measurement system was designed with a purpose. Wire gauge calculations wire diameter calculations.

90 c 194 f thwn 2 thhn xhhw 2 use 2. 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. Applications solid and stranded classes aa and a bare copper are suitable for overhead transmission and distribution applications. Stranded bare copper bare or tinned soft annealed medium hard or hard drawn stranded bare copper.

The higher the gauge number the smaller the diameter and the thinner the wire. Stranded conductors offer greater flexibility than solid 250 kcmil 1 000 kcmil. Awg copper wire table size and data chart 100 degrees f. 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.

This is a handy rule to remember when making rough wire size estimations. For every three steps in the gauge scale wire area and weight per unit length approximately doubles. Suitable for use in electrical grounding systems including counterpoise grounding and on insulators for overhead transmission and distribution applications. 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.

Typical household copper wiring is awg number 12 or 14. American wire gauge size calculator and chart. In addition to wire size the table provides values load current carrying capacity resistance and skin effects. Dimensions of the wires are given in astm standard b 258.

American wire gauge awg sizes and properties chart table table 1 lists the awg sizes for electrical cables conductors. A detailed description of each conductor.