The role and use of insulating materials

polyimide glass fiber is able to prevent the current through the material, the DC current has a very large resistance, under the action of DC voltage, in addition to a very small surface leakage current, in fact, almost non-conductive, and for the AC current capacitance The current passes, but is also considered to be nonconductive. Antistatic products are made of insulating material.
The greater the resistivity of the insulating material, the better the insulation performance. Insulation materials are essential in electrical products, the proportion of electrical equipment is very large. In general, electrical and electrical equipment are made of conductive materials, magnetic materials, insulating materials and structural materials. In addition to insulating materials, the other is metal materials. Motor, electrical appliances in operation, inevitably subject to temperature, electricity, mechanical stress and vibration, harmful gases, chemicals, moisture, dust and radiation and other factors. These factors have a more pronounced effect on insulating materials than other materials. It can be said that the insulation material is more sensitive to these factors, easy to deteriorate deterioration, resulting in damage to electrical equipment. So the insulation material is to determine the motor, electrical operation of the key material reliability.
Insulation material is one of the key factors to determine the technical and economic indicators of motor and electrical appliances. One of the important technical and economic indicators of the motor is the mass power ratio, that is, the kg / kw value. Reduce the ratio, the motor has important significance. From the electrical, electrical products, the cost of the situation, the cost of insulating materials in about half of these are the insulating materials in the electrical, electrical industry, the status and role.