Application of the insulating material

  The role of the insulating material is live parts with different potential to isolate electrical equipment. Insulating materials should first have a high insulation resistance and compressive strength, and can avoid accidents such as leakage current, breakdown. Second, better heat resistance, aging deterioration to avoid long-term overheating; Furthermore, it should have good thermal conductivity, tide lightning resistance and high mechanical strength as well as processing technology and convenient features. According to the above requirements, the performance of commonly used insulating material have a dielectric strength, resistance to tensile strength, specific gravity, coefficient of expansion, etc..
  Electrical insulating material according to their different chemical properties, can be divided into inorganic insulating material, organic insulating material and the mixing of insulating material. Commonly used inorganic insulating materials: mica, asbestos, marble, porcelain, glass, sulfur, mainly used for motors, electrical winding insulation, switching backplane and insulators. The organic insulating materials are: shellac, resins, rubber, cotton yarn, paper, hemp, rayon, etc., and are mostly used to manufacture the insulating paint, the covering of the winding wire insulating material. The hybrid insulating material by the above two materials is processed into a variety of molded insulating material, used as a base, housing, etc. of the electric appliances.