: Undersized cables act like heaters; if they carry more current than they are rated for, the insulation can melt, leading to short circuits or fires.
To determine the correct cable size, follow these steps: electrical cable sizing
Above 2000m, reduced air cooling → multiply ampacity by factor (0.96 per 500m above 2000m). : Undersized cables act like heaters; if they
[ I_z \ge I_b ] [ I_z = I_table \cdot k_temp \cdot k_group \cdot k_soil \cdot k_depth \cdot k_load_cycle ] : Undersized cables act like heaters