Integrated Sealed Pole

The integrated Embedded Pole is a key component widely used in high-voltage electrical equipment. Its main function is to achieve a close combination of conductive parts and insulating parts to ensure the stable operation of the equipment under high-voltage environment. Its design integrates advanced technologies in materials science, mechanical engineering and electrical engineering, and has excellent electrical performance, mechanical strength and environmental adaptability. In the fields of power systems, industrial equipment, rail transit, etc., this type of pole undertakes multiple tasks such as current transmission, insulation protection and mechanical support, and becomes a core component to ensure the safety and reliability of power equipment.
Structural design
The integrated Embedded Pole is usually composed of a conductive rod, an insulating layer, a shielding layer and an external protective layer. The conductive rod is made of high-purity copper or aluminum alloy material, and the surface is silver-plated or nickel-plated to reduce contact resistance. The insulating layer is made of epoxy resin or silicone rubber through a vacuum casting process to cover the conductive rod to form a uniform and dense insulator that can withstand partial discharge and temperature shock. The shielding layer uses a semi-conductive material to cover the surface of the insulating layer for uniform electric field distribution and avoid tip discharge. The external protective layer improves the weather resistance and anti-aging ability of the material by adding ultraviolet absorbers and antioxidants. Each layer is seamlessly connected through molecular-level bonding technology to ensure the mechanical stability of the overall structure.
Material properties
Silicone rubber has become the mainstream choice due to its flexibility and high temperature resistance (operating temperature range -60℃ to 200℃), and is suitable for working conditions with frequent thermal cycles. Epoxy resin is often used in fixed installation scenarios due to its high hardness and resistance to compression deformation. Metal conductors must meet the standard of conductivity ≥58MS/m, and internal stress must be eliminated through annealing. The material ratio must be precisely controlled. For example, the content of fumed silica in silicone rubber must reach 25% 30% to achieve optimal dielectric strength (≥18kV/mm) and tear resistance (≥15kN/m).