Electrical Cable Sizing Calculation May 2026

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:

[ I_b \leq I_n \leq I_z ] [ I_z = \fracI_nC_a \cdot C_g \cdot C_i \cdot C_c ] electrical cable sizing calculation

[ \Delta U_phase-to-phase \leq \Delta U_max \quad (\texte.g., 3% \text of U_L) ] Where: (P) = load power (W) (U_L) =

[ A_min = \fracI_sc \cdot \sqrttk ]