Earthing Cable Sizing __full__

Based on largest ungrounded service conductor (Copper only):

Where:

| Phase conductor size (mm²) | Minimum protective conductor (mm²) | |----------------------------|-------------------------------------| | ≤ 16 | Same as phase | | 25 – 35 | 16 | | 50 – 95 | 25 | | ≥ 120 | 50 | earthing cable sizing