Electrical Cables
In the cables, the location of fault is usually found out by comparing

All of the listed here
The resistance of the conductor
The inductance of conductors
The capacitances of insulated conductors

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Electrical Cables
Capacitance grading of cable implies

Grading according to capacitance of cables per km length
Use of dielectrics of different permeabilities
Cables using single dielectric in different concentrations
Capacitance required to be introduced at different lengths to counter the effect of inductance

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