The insulating properties of insulating materials are closely related to temperature

The insulating properties of insulating materials are closely related to temperature. The higher the temperature, the worse the insulation performance of the insulating material. In order to ensure the insulation strength, each insulation material has an appropriate maximum allowable operating temperature. Below this temperature, it can be used safely for a long time, and it will age quickly if it exceeds this temperature.

Insulating materials are materials that do not conduct electricity under the allowable voltage, but are not absolutely non-conductive materials. Under the action of a certain external electric field strength, conduction, polarization, loss, breakdown and other processes will also occur, and long-term use will also cause aging .