Since , the total sales volume of Thunder Lightning brand tempered glass insulator has exceeded 100 million pieces, accounting for half of the country and one sixth of the world.
The Glass Insulator is composed of an iron cap, toughened glass parts and steel pin, which are combined with cement adhesive. Before assembling, the top of the steel pin is provided with a soft gasket, the inner cavity of the iron cap and the pin ends at the contact point with the cement adhesive are covered by tar. The gasket and tar are used to buff in case of damage when insulator facing thermal expansion and contraction. Toughened glass parts are used to insulate.
Glass Insulators have the characteristics of small size, light weight, zero-value self-breaking, and easy detection; high mechanical strength; good arc resistance; good self-cleaning performance and not easy to age. In addition, the spraying material has the advantages of strong hydrophobicity, long-term resistance to pollution, low leakage current on the surface, and maintenance-free during operation; it is widely used in various circuits at home and abroad.
Disk suspension glass insulators are divided into Standard Type, Anti-pollution Type, DC type, Aerodynamic Type, Out-ribs Type and Ground Wire Type.
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Organic composite insulator is a rapidly developing new material insulator. It is small in size and light in weight, and it does not need to check zero value. Moreover, due to the hydrophobicity of silicone rubber material, the pollution tolerance voltage of composite insulator can be greatly improved. At present, the manufacturing level of all kinds of mandrels has been greatly improved, and the quality is stable, and the production capacity is quite large, which can fully meet the needs of the organic composite insulator manufacturing industry.
The outstanding advantage of glass insulator is "zero value self-detonation", so it has a good application prospect in the power grid which is prone to serious pollution in a large area.
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The production of glass insulators by drying requires complex production equipment, large investment and high technology, so there are not many enterprises producing glass insulators.
Based on the crimp structure of the product, through the continuous improvement of the process in recent years has become a representative of advanced technology and has been widely used. The 750KV, 2L0 ~ 300KN composite insulators produced by our own have been certified by our country and will be put into operation soon. It can be said that the manufacturing level of composite insulators of this voltage grade has reached the international advanced level. Porcelain insulators have good chemical and thermal stability, almost no deterioration of aging, and has good electrical and mechanical properties. There are new varieties of large size, large tonnage L00 ~ 400KN, ordinary type and bell jar type umbrella. But generally speaking, in recent years, the number of porcelain insulator production enterprises basically did not increase, but decreased through integration and reorganization in the same fierce market competition. Dc insulator is a new kind of insulator. Both at home and abroad, organic composite insulators, porcelain insulators and glass insulators have been used in DC transmission lines. Although the number is not large, we have accumulated certain operating experience. China mainly relies on several large manufacturing plants and research institutes to carry out research and development work in this field, and they provide a certain number of products to put into operation. In the future, with ten direct current (DC) transmission projects planned in our country in succession, there will be a great demand for DC insulators. Long rod porcelain insulator is another new type of line insulator. This kind of insulator is mainly used in Europe mainly in Germany, mainly because it inherits the advantages of suspended porcelain insulator, such as light weight (between disk-type suspended porcelain insulator and organic composite insulator), good aging resistance, high pollution resistance, and strong clean performance (umbrella-shaped open aerodynamic type, No cleaning), easy to use and maintenance, non-breakdown, good electrical performance and stability, high damage strength and low operation and maintenance costs.
The above is a comparison of the development situation of various insulators. If you have any other questions, please contact us!
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