[ I_sc^2 \cdot t = \kappa^2 \cdot S^2 \cdot \ln\left(\frac\theta_f + \beta\theta_i + \beta\right) ]
In non-linear loads, harmonic currents cause extra (I^2R) losses. The effective RMS current is: cable calc formula
: [ I = \fracP\sqrt3 \cdot V \cdot PF = \frac200,000\sqrt3 \cdot 400 \cdot 0.85 \approx 340 A ] [ I_sc^2 \cdot t = \kappa^2 \cdot S^2
:
[ S = \fracI_sc \cdot \sqrtt\sqrt\epsilon \cdot \frac1k ] cable calc formula