2 0 Wire Size Chart

120 240 volt 3 wire single phase service entrance conductors service lateral conductors and feeder conductors that serve as the main power feeder to a dwelling unit and are installed in raceway or cable with or without an equipment grounding conductor.

2 0 wire size chart.

American wire gauge awg is a standardized wire gauge system for the diameters of round solid nonferrous electrically conducting wire. American wire gauge size calculator and chart. For application of this section the main. 90 c 194 f thwn 2 thhn xhhw 2 use 2.

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. 75 c 167 f thw thwn se use xhhw. Wire size ampacity charts. Amperage is a measure of the electrical current flowing through a circuit.

Wire gauge refers the physical size of the wire rated with a numerical designation that runs opposite to the diameter of the conductors in other words the smaller the wire gauge number the larger the wire diameter. Awg general rules of thumb for every 6 gauge decrease the. 60 c 140 f nm b uf b. Wire is sized by the american wire gauge awg system.

Gauges you use 1 2 3 which makes more sense mathematically than double nought. Common sizes include 14 12 10 8 6 and 2 gauge wire. 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. 60 c 75 c 90 c 60 c 75 c 90 c 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 3 1 2 4 14.

Wire gauge calculations wire diameter calculations. You must use the correct size wire for the amperage requirement of the circuit to prevent the wire from over heating. For the 00 000 0000 etc. The larger the awg number or wire guage the smaller the physical size of the wire.

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. Awg wire sizes see chart below awg. Size copper aluminum diameter wires in conduit. Current is measured in amperes or amps.

D n in 0 005 in 92 36 n 39. 4 the nec allows a maximum of a 3 voltage drop on the main branch of a circuit at the farthest outlet of power and 5 total to both feeders and branch.