Geometric mean distance

Symbol
$GMD$
Unit
mm
Formulae
$\left({s_c}^{N_c-1} GMR\right)^{\frac{1}{N_c}}$Single-core cables with equal distance
$\left({s_c}^{n_c-1} GMR\right)^{\frac{1}{n_c}}$Multi-core cables
$\left({s_c}^{n_c-1} GMR\right)^{\frac{1}{n_c}}$Multi-core cables with shaped conductors
$1.09\left(GMR {s_c}^3\right)^{\frac{1}{4}}$four-core cables or 4 single-core cables with equal distance
Used in
$X_0$