Bare Copper Wire Size Chart

Bare copper wire and cable bare copper conductor.

Bare copper wire size chart.

60 c 140 f nm b uf b. 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. 90 c 194 f thwn 2 thhn xhhw 2 use 2. Wire gauge calculations wire diameter calculations.

75 c 167 f thw thwn se use xhhw. Stranded conductor of greater flexibility classes b and c are suitable for uninsulated hook up jumpers and grounds in electrical construction. Dimensions of the wires are given in astm standard b 258. The awg standard includes copper aluminum and other wire materials.

The american wire gauge awg measurement system was designed with a purpose. 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. In addition to wire size the table provides values load current carrying capacity resistance and skin effects. The cross sectional area of each gauge is an important factor for determining its.

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. For every three steps in the gauge scale wire area and weight per unit length approximately doubles. American wire gauge size calculator and chart. Applications solid and stranded classes aa and a bare copper are suitable for overhead transmission and distribution applications.

This is a handy rule to remember when making rough wire size estimations. The higher the gauge number the smaller the diameter and the thinner the wire. Awg copper wire table size and data chart 100 degrees f. Typical household copper wiring is awg number 12 or 14.

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. Stranded conductors offer greater flexibility than solid 250 kcmil 1 000 kcmil. American wire gauge awg sizes and properties chart table table 1 lists the awg sizes for electrical cables conductors. Of wires mm in mm in mm in mm in 20 1020 0 517 00080 7 0 31 0121 91 036.

A detailed description of each conductor. The circular mil cm is a unit of area used especially to denote cross sectional size of a wire. D n in 0 005 in 92 36 n 39. Solid and stranded.

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. Stranded bare copper bare or tinned soft annealed medium hard or hard drawn stranded bare copper.