Electrical Cable Size [OFFICIAL]

| Size (Metric) | Size (AWG) | Typical Ampacity (Approx.) | Common Use | | :--- | :--- | :--- | :--- | | 1.0 mm² | 18 AWG | ~10-13 A | Lighting circuits (Europe) | | 1.5 mm² | 16 AWG | ~15-20 A | Lighting circuits, light loads | | 2.5 mm² | 14 AWG | ~20-27 A | General Power Outlets (Sockets) | | 4.0 mm² | 12 AWG | ~25-35 A | Small Appliances, Water Heaters | | 6.0 mm² | 10 AWG | ~35-45 A | Electric Showers, Cookers | | 10 mm² | 8 AWG | ~50-60 A | Sub-mains, Large EV Chargers | | 16 mm² | 6 AWG | ~75-85 A | Incoming service mains | | 25 mm² | 4 AWG | ~100 A | Service entrance | | 35 mm² | 2 AWG | ~125 A | Commercial feeders |

#10 AWG: 3.9 ohms/1000 ft → R = 2×150/1000×3.9 = 1.17 ohms → VD = 23.4V (19.5%) still too high. electrical cable size

Example: 90°C wire in 50°C ambient → factor 0.71. | Size (Metric) | Size (AWG) | Typical Ampacity (Approx