Electrical Cable Sizing Calculation [patched] -

If voltage drop exceeds limit, increase cable size. Minimum cross-section for short-circuit:

Where: (P) = load power (W) (U_L) = line-to-line voltage (V) (\cos\phi) = power factor Choose a standard rating (e.g., 16A, 20A, 32A, 40A) such that: electrical cable sizing calculation

[ \Delta U_phase-to-phase \leq \Delta U_max \quad (\texte.g., 3% \text of U_L) ] If voltage drop exceeds limit, increase cable size

[ I_b \leq I_n \leq I_z ] [ I_z = \fracI_nC_a \cdot C_g \cdot C_i \cdot C_c ] If voltage drop exceeds limit

[ I_0 \geq I_z ] [ \Delta U = \sqrt3 \cdot I_b \cdot L \cdot (R\cos\phi + X\sin\phi) \quad \text(3-phase) ]