1) Current ratings for up to 1000 V , PVC-insulated single and multicore wiring cables, ambient temperature up to 30 o C
Values for resistance are based on electrical resistivity for copper 1.724 x 10 -8 Ω m (0.0174 μΩ m) and electrical resistivity for aluminum 2.65 x 10 -8 Ω m (0.0265 μΩ m).
The higher the gauge number, the smaller the diameter, and the thinner the wire.
Because of less electrical resistance a thicker wire carries more current with less voltage drop than a thinner wire. For longer distances it may be necessary to increase wire diameter - reducing the gauge - to limit voltage drop.
Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.
Maximum current (amps) in a 12V electrical circuit vs. size (AWG) and length of wire.
Electrical resistance in plain copper or aluminum wires.
American Wire Gauge (AWG) vs. cross sectional area converter.
Gauge, weight, circular mils and electrical resistance in copper wire.
Amps vs. cable size for fixed installations in buildings.
Calculate single and bunched electric wire cross-section area and diameter.
Maximum length of 240 V single phase electric wire with max. 2% voltage drop.
Trade sizes and max. distance between conduit supports.
Copper wire gage and transformer size for single phase 230 volts electrical motors.
Lighter and lower cost metal conduits.
Color codes used in power wiring.
Rigid Aluminum Conduit dimensions.
Calculate the number of small circles that fits into an outer larger circle - ex. how many pipes or wires fits into a larger pipe or conduit.
Standard gauges for wire and sheet - American, Birmingham, Washburn, Music, Stubs ..
Convert wire area from square mm to diameter mm.
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