There are several main objectives for well-designed grounding system: personal safety, equipment
protection, signal reference quality, return path for faults and surges and static dissipation.
To meet these objectives, grounding connections must maintain a low contact resistance under
adverse conditions for the expected lifetime of the grounding system. Connections in ground
network are subjected to severe corrosion, high mechanical stress due to electromagnetic force,
and thermal heating due to high current magnitude during fault conditions.