The Reason Why the Insulating Material Loses Its Insulation Effect

In the equipment room, the environmental changes will also have a certain impact on the performance of the insulation material. When the temperature rises, the performance of the insulation material will change. When the temperature is too low, it……

In the equipment room, the environmental changes will also have a certain impact on the performance of the insulation material. When the temperature rises, the performance of the insulation material will change. When the temperature is too low, it may affect the normal operation of the electrical equipment. Its resistance strength becomes lower, therefore, improving the heat resistance of the insulating film can prolong its service life. Studies have shown that the heat resistance of different materials is not the same. In general, the heat resistance temperature of the material can be as low as 90 degrees, and up to 180 degrees. The future development of China’s insulation materials will mainly be reflected in high-temperature insulation materials with high heat resistance, high environmental performance, high dielectric properties, high corrosion resistance and high mechanical properties.

Insulation materials are commonly used for electrical purposes. They are classified into three types: inorganic insulating materials, organic insulating materials and mixed insulating materials. Organic insulating materials are mainly used for the production of insulating varnishes, winding wires, etc. Common organic insulating materials are resin, shellac, NMN insulating paper, hemp, rubber, etc.; and inorganic insulating materials are mainly used to make winding insulation of electrical appliances and motors. Commonly used: marble, glass, sulfur, mica, porcelain, etc. Insulators are classified into three types: solid insulators, gas insulators and liquid insulators. Glass, ceramics, plastics, etc., are solid insulators; air and carbon dioxide are gas insulators; natural mineral oils, silicone oils, etc. are liquid insulators.

The electrical insulation material loses its insulation performance due to aging. Such aging methods generally are: electrical aging, mechanical aging, heat aging, and aging caused by environmental factors. How to prevent insulation failure? It is understood that the main method to prevent insulation failure is to increase the electrical resistivity of the electrical insulation material and enhance the breakdown field strength of the dielectric. These include the prevention of solid dielectrics, liquid dielectrics, and gaseous dielectrics. Insulation failure due to breakdown, specifically include liquid breakdown, surface breakdown, solid breakdown and gas breakdown.

The insulation material is the key base material for the manufacture of electrical (electronic) equipment and plays a decisive role in the service life and operational reliability of electrical (electronic) equipment. With the development of China’s power industry to high voltage, large capacity and long distance transportation, higher and higher requirements are put forward on the quality and reliability of electrical insulation materials. Research and development of various excellent insulation materials is the general trend in the development of insulation materials.

ZTELEC Group promises to provide you with high quality products and excellent service, welcome to consult us online or by email if you have any demands or questions!

Email: serina@ztaero.com

Leave a message

Your email address will not be published. Required fields are marked *

Goto Top
ztelec