DC hipot testing measures the ________ of cables.

DC hipot testing is a method used to assess the insulation quality of electrical cables. The primary aim of this testing is to measure the insulation resistance, which is crucial for ensuring the safety and reliability of electrical systems.

During a DC hipot test, a high voltage is applied to the insulation of the cable, and the current that flows through the insulation is measured. This current gives an indication of the insulation's ability to resist electrical leakage, which can lead to failures or hazards over time. A high insulation resistance value indicates good insulation quality, while a low value suggests potential problems that need to be addressed.

This specific test does not focus on the capacitance of the conductors, the magnetic permeability, or the DC resistance (ohmic value) of the cable's conductors. Instead, it specifically evaluates how well the insulation can prevent electrical current from unintended paths, under stressing conditions, thus ensuring that the cables can operate safely under normal conditions.