Koestuspaine

Koestuspaine is a Finnish term that translates to "breakdown voltage" or "dielectric strength" in English. It refers to the maximum electric field strength that a material can withstand without becoming electrically conductive. When the electric field applied to an insulating material exceeds its koestuspaine, the material will undergo dielectric breakdown, and an electric current will flow through it. This phenomenon can cause damage to electrical equipment and pose a safety hazard.

The koestuspaine of a material is an important property in the design and selection of electrical insulators. Factors such as the material's composition, temperature, humidity, and the presence of impurities can affect its koestuspaine. For example, air has a koestuspaine that can be exceeded by high voltage, leading to electrical arcing. Different insulating materials used in electrical applications, such as polymers, ceramics, and oils, have varying levels of koestuspaine, which are crucial for ensuring reliable and safe operation of electrical systems. Understanding and accounting for koestuspaine is essential in preventing electrical failures and maintaining the integrity of electrical insulation.