The following conductor diameters are typical values as a function of the conductor cross-section.

- For IEC sizes, the diameters are taken from IEC 60228 Ed. 3.0 and from HD 603 S2 Part 7 Section A plus HD 620 S2 Part 10 Section F.
- For AWG/kcmil, the diameters are taken from UL 1581 Table 20.1 for solid conductor up to 12 AWG and table 20.3 for round stranded compressed conductors plus ASTM B8-11 for sizes larger than 2000 kcmil.

The user can choose an arbitrary value not limited to the values in the choices below, but a warning is indicated if the conductor diameter seem unreasonably small.

For sector-shaped multi-core cables, the conductor diameter is defined as the diameter of the circle circumscribing the sector-shaped conductors. Based on that value, an equivalent diameter of the conductor $d_x$ is calculated.

$d_{\mathrm{c}}$

mm

$A_{\mathrm{i}}$

Area of insulation [mm²]

$D_{\mathrm{1}}$

$D_{\mathrm{c}}$

$d_{\mathrm{ci}}$

$d_{\mathrm{ct}}$

$D_{\mathrm{i}}$

$d_{\mathrm{x}}$

$G_{\mathrm{1}}$

Geometric factor [-]

$k_{\mathrm{s}}$

$\lambda_{\mathrm{1es}}$

$\lambda_{\mathrm{2}}$

$Q_{\mathrm{i1}}$

$Q_{\mathrm{i2}}$

$r_{\mathrm{c}}$

Radius of conductor [mm]

$T_{\mathrm{1}}$

$X_{\mathrm{0}}$

Zero sequence reactance [Ω/m]

$X_{\mathrm{G}}$

Factor X_{G} [-]

$X_{\mathrm{K}}$

Factor X_{K} [-]

$Y_{\mathrm{K}}$

Factor Y_{K} [-]

$y_{\mathrm{p}}$

IEC sizes | min. | nom. | Diameter [mm] max. | AWG sizes | min. | nom. | max. |
---|---|---|---|---|---|---|---|

0.5 mm² | 0.9 | 18 AWG | 1.0 | 1.02 | 1.03 | ||

0.75 mm² | 1.0 | 16 AWG | 1.26 | 1.29 | 1.3 | ||

1.0 mm² | 1.2 | 14 AWG | 1.6 | 1.63 | 1.64 | ||

1.5 mm² | 1.5 | 12 AWG | 2.01 | 2.05 | 2.07 | ||

2.5 mm² | 1.9 | 10 AWG | 2.82 | 2.87 | 2.9 | ||

4 mm² | 2.4 | 8 AWG | 3.53 | 3.61 | 3.63 | ||

6 mm² | 2.6 | 2.7 | 2.8 | 6 AWG | 4.42 | 4.52 | 4.57 |

10 mm² | 3.4 | 3.5 | 3.7 | 4 AWG | 5.61 | 5.72 | 5.77 |

16 mm² | 4.7 | 4.8 | 5.0 | 2 AWG | 7.04 | 7.19 | 7.26 |

25 mm² | 5.6 | 6.1 | 6.5 | 1 AWG | 8.03 | 8.18 | 8.26 |

35 mm² | 6.6 | 7.0 | 7.4 | 1/0 AWG | 9.02 | 9.19 | 9.3 |

50 mm² | 7.7 | 8.1 | 8.6 | 2/0 AWG | 10.08 | 10.3 | 10.39 |

70 mm² | 9.3 | 9.6 | 10.0 | 3/0 AWG | 11.35 | 11.6 | 11.71 |

95 mm² | 11.0 | 12.0 | 13.4 | 4/0 AWG | 12.75 | 13.0 | 13.13 |

120 mm² | 12.3 | 13.0 | 15.0 | 250 kcmil | 13.89 | 14.2 | 14.33 |

150 mm² | 13.7 | 14.4 | 16.2 | 300 kcmil | 15.21 | 15.5 | 15.67 |

185 mm² | 15.3 | 15.8 | 16.4 | 350 kcmil | 16.46 | 16.8 | 16.97 |

240 mm² | 17.6 | 18.2 | 18.9 | 400 kcmil | 17.58 | 17.9 | 18.11 |

300 mm² | 19.7 | 20.0 | 21.1 | 500 kcmil | 19.63 | 20.0 | 20.24 |

400 mm² | 22.3 | 23.0 | 24.6 | 600 kcmil | 21.56 | 22.0 | 22.23 |

500 mm² | 25.3 | 26.0 | 26.8 | 750 kcmil | 24.1 | 24.6 | 24.84 |

630 mm² | 28.7 | 30.5 | 32.5 | 1000 kcmil | 27.81 | 28.4 | 28.65 |

800 mm² | 33.0 | 33.8 | 34.3 | 1250 kcmil | 31.12 | 31.8 | 32.05 |

1000 mm² | 37.0 | 41.0 | 42.2 | 1500 kcmil | 34.11 | 34.8 | 35.15 |

1200 mm² | 44.3 | 1750 kcmil | 36.83 | 37.6 | 37.97 | ||

1400 mm² | 47.5 | 2000 kcmil | 39.4 | 40.2 | 40.61 | ||

1600 mm² | 50.0 | 2500 kcmil | 46.3 | ||||

1800 mm² | 52.8 | 3000 kcmil | 50.7 | ||||

2000 mm² | 55.5 | 4000 kcmil | 58.6 | ||||

2500 mm² | 63.0 | 5000 kcmil | 65.6 |