The inductance of the ground system dominates during the rapid change of current with time as the
current is injected into the earth. The voltage developed due to the inductive term is given by L di/dt.
This may become dangerously large, creating the risk of a flash over, if attention is not paid to
ensuring that inductance is minimized in the system. Sharp bends in down conductors and bonding
connections should be avoided and the use of flat conductors, instead of radial ones, encouraged.