What does insulation resistance measure in electrical engineering?

Insulation resistance specifically measures the resistance to the flow of electric current through an insulating material. It is a critical parameter in electrical engineering that helps determine the effectiveness of insulation used in wiring and electrical components. High insulation resistance indicates good quality insulation, which prevents unwanted current leakage that could lead to electrical shocks, equipment damage, or system failures.

This measurement is essential for assessing the safety and performance of electrical systems, ensuring that conductors are effectively isolated from one another and from the ground. Maintaining high insulation resistance values is vital for the longevity and reliability of electrical installations.