Performance Of Composite Insulator

Performance Of Composite Insulator

Composite insulators, integral rod design, compact structure, high quality, weight is one-tenth of the same grade porcelain and glass insulators, transportation and installation are extremely convenient. We are suitable for dirty areas, high mechanical tensile loads, large spans, and compact lines. Composite insulators are 30-50% higher than similar grade porcelain and glass insulators. It has stable performance under the ambient temperature of -60℃ to 200℃; it adopts a non-breakdown design, no zero measurements are needed during operation, and it has excellent pollution performance.

This characteristic can be maintained even when the silicone rubber material ages. Therefore, the reliability of power transmission is improved, and the cost of cleaning and maintenance of insulators is greatly reduced. It has excellent UV resistance, corrosion resistance, small size, lightweight, etc., 110kv / 100kn composite long pole insulator is the only 70kn% of porcelain insulator. Such a lightweight device greatly saves installation and transportation costs. It often eliminates the need for cranes and is especially suitable for emergency maintenance of lines and the erection and maintenance of mountain lines that cannot be reached by transport vehicles. It can simplify the structure of the tower, allow large spans (reduce the number of poles and towers); and provide the conditions for the development of compact lines, production and delivery times are much shorter than porcelain insulators, no insulation resistance for zero value detection, no brittleness shortcomings. This feature is not only good for installation and transportation but also makes it more arc-resistant than porcelain insulator washing machines.

The structure and quality of the raw materials used in silicone rubber insulators, the simplification of the synthetic silicone rubber process, and the size and distribution of silicon molecules in silicone rubber are all related to the anti-aging properties of silicone rubber.

①Using a fixed production process, using imported high-purity D4 to produce silicone rubber, the performance of the silicone rubber must be stable.

②The silicone rubber composed of methyl-terminated siloxane molecules has obvious aging resistance.

③Silicone rubber is composed of high molecular weight siloxane molecules with a narrow distribution and has good aging resistance.

The surface -OH of the gas phase white hair black particles of the external thermal insulation reinforcing agent should be strictly controlled to the minimum, otherwise, the excessive acidity of the surface will induce the siloxane molecules to crack and degrade for a long time. Determining the corresponding plasticization process parameters can make the plasticization performance of the external insulation achieve satisfactory results.

① The internal insulation of the internal mixer is mechanically plasticized by the mixer, which greatly reduces the oxidative degradation of polymer molecules during mechanical refining.

②Determine the appropriate mechanical plasticization temperature to prevent the polymer molecules from deforming before they relax and move, leading to chain scission degradation.

③Plastic external insulation must be stored for a period of time to eliminate internal stress and external polymer molecular structure of external insulation of the mechanical plastics. The internal structural pressure balance is also conducive to the overall mechanical properties of external insulation.