Dielectric strength is a property of insulating materials and is defined as the maximum electric field that a material can withstand without undergoing electrical breakdown. It is a crucial parameter in the design and selection of insulating materials in electrical and electronic systems.
When a voltage is applied to an insulating material, the electric field within the material increases. At a certain point, if the electric field becomes too intense, it can lead to the ionization of the atoms or molecules in the material, causing a breakdown and the formation of an electrically conductive path. Dielectric strength is measured in volts per unit thickness of the material (volts per mil or volts per meter) and represents the material’s ability to resist this breakdown.
