In electrical engineering, insulating materials usually refer to materials with resistance coefficient greater than 10 to the 9th power ω cm. The function of insulating materials is mainly to isolate charged parts with different potentials in electrical equipment.
Therefore, insulating materials should have good dielectric properties, that is, high insulation resistance and compressive strength, and avoid accidents such as leakage, creepage and breakdown. Secondly, the heat resistance of insulating materials is better, mainly to ensure that the performance will not change due to long-term heating; In addition, it has good thermal conductivity, moisture resistance, high mechanical strength and convenient processing.
Insulating materials commonly used by electricians can be divided into inorganic materials and organic materials according to different chemical properties. Insulating materials and mixed insulating materials.
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