AWG: In the American Wire Gauge (AWG), diameters is generally computed by utilizing the formula D(AWG)=.005·92((36-AWG)/39) inch. For the 00, 000, 0000 etc. gauges you choose -1, -2, -3, helping to make more sense mathematically rather than "double nought." Therefore in American wire gage each 6 gauge drop delivers a doubling of the wire dimension, and each 3 gauge reduction doubles the wire cross sectional area. Much like dB in signal and power ranges. An anticipated yet precise sort of this formula donated by Mario Rodriguez is D =.460 * (57/64)(awg +3) or D =.460 * (0.890625)(awg +3).

### **Metric Wire Gauges (check table**

below)

below)

Metric Gauge: In the Metric Gauge scale, the measure is 10 times the dimension in millimeters, therefore a 50 gauge metric wire is likely to be 5 mm in size. Remember that in AWG the diameter increases as the gauge decreases,

however for metric gauges it happens to be the reverse. Maybe for this confusion, normally metric sized wire is designated in millimeters instead of metric gauges.

### Current Holding Specs (refer to table below)

**Definition: A**mpacity is the current carrying capability of a cable. Put simply, how much amps it may be rated to carry? The following list is a manual of ampacity or copper wire current holding capability following the Handbook of Electronic Tables and Formulas for American Wire Gauge. While you may speculate, the rated ampacities are simply a general guideline. In mindful engineering the voltage drop, insulation temperature limit, thickness, thermal conductivity, and air convection and temperature ought to all be evaluated. The Highest Amps for Power

Transmission makes use of the 700 circular mils per amp principle, that could be extremely traditional. The Highest Amps for Chassis Wiring just happens to be a traditional evaluation, nevertheless will suit electrical wiring in air, and not in a bundle. For short measures of wire, for example is employed in battery packs you might want to substitute the resistance and load current with dimensions, weight, and flexibility. Please note: For installations that might want to comply with the National Electrical Code, one should work with their recommendations. Contact your neighborhood electrician to really know what is lawful!

### Highest Frequency for 100% Skin Depth

This information is ideal for high frequency AC engineering. Whenever high frequency AC is involved in a wire you can find a likelihood for the current to run around the periphery the wire. This raises the overall resistance. The frequency detailed in the table exhibits the frequency where the computed skin depth is comparable to the radius

of the wire, which is a manifestation that above this frequency you probably should start contemplating the skin effect while determining the wire's resistance.

### Busting Force for Cu Wire

This approximate relies upon nick-free soft annealed wire bearing a tensile strength of 37000 pounds per

square inch.

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AWG gauge | Conductor Diameter Inches | Conductor Diameter mm | Ohms per 1000 ft. | Ohms per km | Maximum amps for chassis wiring | Maximum amps for power transmission | Maximum frequency for 100% skin depth for solid conductor copper | Breaking force Soft Annealed Cu 37000 PSI |

0000 | 0.46 | 11.684 | 0.049 | 0.16072 | 380 | 302 | 125 Hz | 6120 lbs |

000 | 0.4096 | 10.40384 | 0.0618 | 0.202704 | 328 | 239 | 160 Hz | 4860 lbs |

00 | 0.3648 | 9.26592 | 0.0779 | 0.255512 | 283 | 190 | 200 Hz | 3860 lbs |

0 | 0.3249 | 8.25246 | 0.0983 | 0.322424 | 245 | 150 | 250 Hz | 3060 lbs |

1 | 0.2893 | 7.34822 | 0.1239 | 0.406392 | 211 | 119 | 325 Hz | 2430 lbs |

2 | 0.2576 | 6.54304 | 0.1563 | 0.512664 | 181 | 94 | 410 Hz | 1930 lbs |

3 | 0.2294 | 5.82676 | 0.197 | 0.64616 | 158 | 75 | 500 Hz | 1530 lbs |

4 | 0.2043 | 5.18922 | 0.2485 | 0.81508 | 135 | 60 | 650 Hz | 1210 lbs |

5 | 0.1819 | 4.62026 | 0.3133 | 1.027624 | 118 | 47 | 810 Hz | 960 lbs |

6 | 0.162 | 4.1148 | 0.3951 | 1.295928 | 101 | 37 | 1100 Hz | 760 lbs |

7 | 0.1443 | 3.66522 | 0.4982 | 1.634096 | 89 | 30 | 1300 Hz | 605 lbs |

8 | 0.1285 | 3.2639 | 0.6282 | 2.060496 | 73 | 24 | 1650 Hz | 480 lbs |

9 | 0.1144 | 2.90576 | 0.7921 | 2.598088 | 64 | 19 | 2050 Hz | 380 lbs |

10 | 0.1019 | 2.58826 | 0.9989 | 3.276392 | 55 | 15 | 2600 Hz | 314 lbs |

11 | 0.0907 | 2.30378 | 1.26 | 4.1328 | 47 | 12 | 3200 Hz | 249 lbs |

12 | 0.0808 | 2.05232 | 1.588 | 5.20864 | 41 | 9.3 | 4150 Hz | 197 lbs |

13 | 0.072 | 1.8288 | 2.003 | 6.56984 | 35 | 7.4 | 5300 Hz | 150 lbs |

14 | 0.0641 | 1.62814 | 2.525 | 8.282 | 32 | 5.9 | 6700 Hz | 119 lbs |

15 | 0.0571 | 1.45034 | 3.184 | 10.44352 | 28 | 4.7 | 8250 Hz | 94 lbs |

16 | 0.0508 | 1.29032 | 4.016 | 13.17248 | 22 | 3.7 | 11 k Hz | 75 lbs |

17 | 0.0453 | 1.15062 | 5.064 | 16.60992 | 19 | 2.9 | 13 k Hz | 59 lbs |

18 | 0.0403 | 1.02362 | 6.385 | 20.9428 | 16 | 2.3 | 17 kHz | 47 lbs |

19 | 0.0359 | 0.91186 | 8.051 | 26.40728 | 14 | 1.8 | 21 kHz | 37 lbs |

20 | 0.032 | 0.8128 | 10.15 | 33.292 | 11 | 1.5 | 27 kHz | 29 lbs |

21 | 0.0285 | 0.7239 | 12.8 | 41.984 | 9 | 1.2 | 33 kHz | 23 lbs |

22 | 0.0254 | 0.64516 | 16.14 | 52.9392 | 7 | 0.92 | 42 kHz | 18 lbs |

23 | 0.0226 | 0.57404 | 20.36 | 66.7808 | 4.7 | 0.729 | 53 kHz | 14.5 lbs |

24 | 0.0201 | 0.51054 | 25.67 | 84.1976 | 3.5 | 0.577 | 68 kHz | 11.5 lbs |

25 | 0.0179 | 0.45466 | 32.37 | 106.1736 | 2.7 | 0.457 | 85 kHz | 9 lbs |

26 | 0.0159 | 0.40386 | 40.81 | 133.8568 | 2.2 | 0.361 | 107 kHz | 7.2 lbs |

27 | 0.0142 | 0.36068 | 51.47 | 168.8216 | 1.7 | 0.288 | 130 kHz | 5.5 lbs |

28 | 0.0126 | 0.32004 | 64.9 | 212.872 | 1.4 | 0.226 | 170 kHz | 4.5 lbs |

29 | 0.0113 | 0.28702 | 81.83 | 268.4024 | 1.2 | 0.182 | 210 kHz | 3.6 lbs |

30 | 0.01 | 0.254 | 103.2 | 338.496 | 0.86 | 0.142 | 270 kHz | 2.75 lbs |

31 | 0.0089 | 0.22606 | 130.1 | 426.728 | 0.7 | 0.113 | 340 kHz | 2.25 lbs |

32 | 0.008 | 0.2032 | 164.1 | 538.248 | 0.53 | 0.091 | 430 kHz | 1.8 lbs |

Metric 2.0 | 0.00787 | 0.200 | 169.39 | 555.61 | 0.51 | 0.088 | 440 kHz | |

33 | 0.0071 | 0.18034 | 206.9 | 678.632 | 0.43 | 0.072 | 540 kHz | 1.3 lbs |

Metric 1.8 | 0.00709 | 0.180 | 207.5 | 680.55 | 0.43 | 0.072 | 540 kHz | |

34 | 0.0063 | 0.16002 | 260.9 | 855.752 | 0.33 | 0.056 | 690 kHz | 1.1 lbs |

Metric 1.6 | 0.0063 | 0.16002 | 260.9 | 855.752 | 0.33 | 0.056 | 690 kHz | |

35 | 0.0056 | 0.14224 | 329 | 1079.12 | 0.27 | 0.044 | 870 kHz | 0.92 lbs |

Metric 1.4 | .00551 | .140 | 339 | 1114 | 0.26 | 0.043 | 900 kHz | |

36 | 0.005 | 0.127 | 414.8 | 1360 | 0.21 | 0.035 | 1100 kHz | 0.72 lbs |

Metric 1.25 | .00492 | 0.125 | 428.2 | 1404 | 0.20 | 0.034 | 1150 kHz | |

37 | 0.0045 | 0.1143 | 523.1 | 1715 | 0.17 | 0.0289 | 1350 kHz | 0.57 lbs |

Metric 1.12 | .00441 | 0.112 | 533.8 | 1750 | 0.163 | 0.0277 | 1400 kHz | |

38 | 0.004 | 0.1016 | 659.6 | 2163 | 0.13 | 0.0228 | 1750 kHz | 0.45 lbs |

Metric 1 | .00394 | 0.1000 | 670.2 | 2198 | 0.126 | 0.0225 | 1750 kHz | |

39 | 0.0035 | 0.0889 | 831.8 | 2728 | 0.11 | 0.0175 | 2250 kHz | 0.36 lbs |

40 | 0.0031 | 0.07874 | 1049 | 3440 | 0.09 | 0.0137 | 2900 kHz | 0.29 lbs |

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. (Note: It just calculates the voltage drop, consult the above table for rules-of-thumb, or your local or national electrical code or your electrician to decide what is legal!) Note that the voltage drop does not depend on the input voltage, just on the resistance of the wire and the load in amps. |