Bare Copper Wire Size Chart

Telephone wire is usually 22 24 or 26.

Bare copper wire size chart.

The resistances and skin depth noted are for copper conductors. Dimensions of the wires are given in astm standard b 258. 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. Typical household copper wiring is awg number 12 or 14. Stranded conductors offer greater flexibility than solid 250 kcmil 1 000 kcmil. In addition to wire size the table provides values load current carrying capacity resistance and skin effects.

American wire gauge size calculator and chart. The awg standard includes copper aluminum and other wire materials. A detailed description of each conductor. Suitable for use in electrical grounding systems including counterpoise grounding and on insulators for overhead transmission and distribution applications.

D n in 0 005 in 92 36 n 39. Stranded bare copper bare or tinned soft annealed medium hard or hard drawn stranded bare copper. Bare copper wire and cable bare copper conductor. 90 c 194 f thwn 2 thhn xhhw 2 use 2.

For every three steps in the gauge scale wire area and weight per unit length approximately doubles. 75 c 167 f thw thwn se use xhhw. 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.

Solid and stranded. The cross sectional area of each gauge is an important factor for determining its. Stranded conductor of greater flexibility classes b and c are suitable for uninsulated hook up jumpers and grounds in electrical construction. 60 c 140 f nm b uf b.

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. American wire gauge awg sizes and properties chart table table 1 lists the awg sizes for electrical cables conductors. Wire gauge calculations wire diameter calculations. Awg copper wire table size and data chart 100 degrees f.

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. 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.