Definition - What does Fault Current mean?
Fault current refers to the rate of flow of electric charge that exists between two conductors or one conductor and the ground. A fault current is indicative of an abnormal flow of electric current in a system.
Corrosionpedia explains Fault Current
Fault currents can be searched for as an indicator of abnormal current flow. This can be further used to analyze how prone a material is to corrosion. The lower the presence of fault currents, the lower the rate of corrosion and vice versa.