Earthing and BondingThe function of an earthing and bonding system is to provide an earthing system connection to which transformer neutrals or earthing impedances may be connected in order to pass themaximum fault current. The earthing system also ensures that no thermal or mechanical damage occurs on the equipmentwithin thepower substation, thereby resulting in safety too peration and maintenance personnel.The earthing system also guaranteesequipotential bondingsuch that there are no dangerous potential gradients developed in the substation.