Round up to next standard (e.g., 16, 25, 35, 50, 70, 95 mm²).
For standard installations, engineers often select sizes based on the cross-sectional area of the associated phase (live) conductors ( Sphcap S sub p h end-sub Earth cable size = Phase cable size. If : Earth cable size = If : Earth cable size = Half the phase cable size ( Typical Earthing Cable Sizes by Scenario earthing cable sizing
Earthing cable size tables are available in various standards and regulations. These tables provide a quick and easy way to determine the minimum earthing cable size required for a given fault current and duration. Round up to next standard (e