How to measure the cable resistance and contact resistance of the electric system
Insulation resistance:Insulation resistance is the basic electrical performance of wires and cables. It refers to the resistance of insulating materials between two conductors under specified conditions. The insulation resistance, if not specified, refers to the ratio of the applied DC voltage U to the leakage current Ig on the insulation.
Contact resistance:A contact resistance is the resistance of an electric current to a closed point of contact.
Test method for insulation resistance:The measurement usually uses a constant DC voltage at both ends of the tested insulator to measure the magnitude and variation of the DC current flowing through it to determine the merits and resistances of the insulating material.
