How To Calculate Cable Size |link| | 95% TRUSTED |
[ I_z = I_ref \times k_temp \times k_group \times k_soil \times k_depth \times k_therm ]
: ( I_b = \frac50000\sqrt3 \times 400 \times 0.85 \times 0.94 = \frac50000553.6 \approx 90.3 A ) how to calculate cable size
For a three-phase circuit (line-to-line): [ V_d = \sqrt3 \times I_b \times (R \cos\phi + X \sin\phi) \times L ] [ I_z = I_ref \times k_temp \times k_group