Earthing | Cable Sizing
Beyond simple calculations, several environmental and technical factors must be considered: Earth Cable Size Calculator AS3000 - ELEK Software
An earthing (grounding) conductor provides a low-impedance path for fault currents to flow to earth. If undersized, the cable can: earthing cable sizing
A cable sized perfectly for thermal withstand may still fail if it is too thin to withstand physical stress. Beyond simple calculations
Where:
[ S = \frac\sqrtI^2 \times tk ]