Cableizer ®

Mechanical force phase-to-phase fault

According to IEC 61914, Annex B.3

Symbol
$F_{k,2}$
Unit
kN/m
Formulas
$\alpha_{k,2} f_{k} {i_{p,2}}^2 \frac{1}{GMD_{k}} \frac{1}{1000}$IEC 61914
$\alpha_{k,2} \frac{\mu_{0}}{2\pi} \left(1000i_{p,2}\right)^2 \frac{1}{S_{m}} \frac{1}{1000}$Swissgrid Baukasten
Related
$f_{k}$
Factor f (IEC 61914)
$GMD_{k}$
Geometric mean distance between phases of the same system, short-circuit [m]
$\mu_{0}$
Vacuum permeability [H/m]
$\pi$
Archimedes' constant $\pi$
$S_{m}$
Separation of conductors in a system [m]
Used in
$F_{k,max}$
Maximal mechanical force [kN/m]