What is the difference between grounding resistance and fault resistance?

Grounding resistance is the impedance of the equipment grounding, generally require the smaller the better, such as general communications equipment grounding resistance requirements less than 0.1Ω;

Fault resistance is the impedance caused by faults that lead to grounding, such as in the transmission line, originally suspended (not grounded) transmission, due to faulty factors, resulting in a point of contact with the ground, the fault resistance will be generated, which can be detected to locate the Fault point.

This is the transmission side of the problem, I also know half, huh, I hope to help you