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The AWG tables and charts are handy methods to specify the current carrying capacity of a conductor, its diameter, resistance, max current in amperes and other important parameters and characteristics.
The following chart is a guideline of “ampacity”, or copper wire current carrying capacity following the Handbook of Electronic Tables and Formulas for American Wire Gauge. As you might guess, the rated “ampacities” are just a rule of thumb.
AWG chart. Wire gauge calculations. Wire diameter calculations. 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: dn (in) = 0.005 in × 92 (36-n)/39.
(a) Termination provisions of equipment for circuits rated 100 amperes or less, or marked for 14 AWG through 1 AWG conductors, shall be used only for one of the following: (1) Conductors rated 60°C (140°F). (2) Conductors with higher temperature ratings, provided the ampacity of such conductors is determined based
Wire Ampacity. Using the chart below, fi rst identify the size wire (AWG), number of conductors being used, and the temperature environment in use. Then use the current rating factor chart to multiply the number you found in the chart to obtain current rating.
Wire Size Chart. Electrical current is measured in amps. Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. It is important to pick the correct size of wire so that the wire doesn't overheat.
WebTables.xls. AWG WIRE TABLE (All data is computed from the formulas at the bottom) AWG Code. Bare wire nominal. Area-cm. Length Feet/Lb. 77 Deg-F / 25 Deg-C.
