Läbilöögipingest

Läbilöögipingest refers to the minimum voltage at which electrical breakdown occurs in a dielectric material. When a sufficiently high voltage is applied across an insulating material, the electric field within the material can become strong enough to overcome its insulating properties. This leads to a rapid increase in conductivity, a phenomenon known as electrical breakdown or dielectric breakdown. The voltage at which this occurs is the breakdown voltage, and the electric field corresponding to this voltage is the breakdown field strength.

The breakdown voltage of a material depends on several factors, including the thickness of the material, its temperature, the presence of any impurities or defects, and the duration for which the voltage is applied. For gases, the breakdown voltage is also significantly influenced by the pressure of the gas. For example, in a gas, increasing the pressure generally increases the breakdown voltage.

Dielectric breakdown can be a destructive process, often leading to permanent damage to the insulating material. This is because the high currents that flow during breakdown can generate significant heat, causing melting or charring. Therefore, understanding and controlling läbilöögipingest is crucial in the design of electrical and electronic equipment to ensure reliable and safe operation. It is a key parameter in selecting appropriate insulating materials for various applications, from high-voltage power transmission lines to microelectronic components.