High Voltage Wire Chart

For example there are wire types designed for resistance to sunlight exposure high temperatures and direct burial.

High voltage wire chart.

Single phase voltages are usually 115v or 120v while three phase voltages are typically 208v 230v or 480v. When calculating proper wire sizing voltage plays a very important role. Voltage enter the voltage at the source of the circuit. Voltage is much like water pressure the higher the voltage the faster the current flows.

Wire size and amp ratings. Wiring and voltage voltage is much like water pressure. Then divide the total wattage by the voltage of the system 110 or 220 and that will give you the expected current or amps. Specify wiring that will withstand the worst conditions.

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. Installation of electrical wire can be hazardous if done improperly and can result in personal injury or property damage. The following calculator calculates the voltage drop and voltage at the end of the wire for american wire gauge from 4 0 awg to 30 awg aluminum or copper wire. Amperes enter the maximum current in amps that will flow through the circuit.

For motors it is recommended to multiply the nameplate fla by 1 25 for wire sizing. View wire size and amp ratings in a new window.