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DC resistance measurements and voltage drop calculations are conducted on insulated wires to determine the voltage drop across crimp joints and on re-terminated insulated wires. This evaluation is an effective means of determining the electrical efficacy of a crimp.
Testing is performed on insulated, wires with crimp terminals attached. A current is applied to the sample and the DC resistance is measured to determine the voltage drop across the terminal to millivolt accuracy. The acceptable voltage drop is defined by the criteria set in the testing standard.