From tables, 2.5 mm² copper (24 A) is borderline; 4 mm² (32 A) is safe.
| Load Current (A) | Cable Length (m) | Voltage Drop (%) | Cable Size (mm²) | | --- | --- | --- | --- | | 25 | 50 | 5 | 6 | | 50 | 100 | 3 | 16 | | 100 | 200 | 5 | 35 | calculate the cable size
[ I = \fracPV \times \textPower Factor ] Where: ( I ) = current (A), ( P ) = power (W), ( V ) = voltage (V). If power factor unknown, assume 0.8–0.9. From tables, 2