Conductor Materials
Copper (T2 copper): Excellent conductivity and low resistivity, making it the preferred conductor in high-voltage components. Widely used in cables, connectors, copper busbars, etc., especially suitable for high-current or high-frequency applications.
Aluminum: Lightweight and low-cost, often used in weight-sensitive transmission lines. However, its conductivity is relatively poor, requiring increased cross-sectional area compensation. Commonly found in high-voltage transformer windings or overhead lines.
Copper Alloys: Such as manganese brass (HMn55-3-1), combining high strength, antimagnetism, and corrosion resistance, suitable for special conditions such as coastal chemical plants and high-voltage electrical contacts.
Insulating Materials
Silicone Rubber: Excellent hydrophobicity, high temperature resistance (-40℃~90℃), UV resistance, and aging resistance. Widely used in composite insulators, cable accessories, and insulating covers, particularly suitable for heavily polluted and high-altitude areas.
Cross-linked polyethylene (XLPE): High mechanical strength, oil resistance, and flame retardancy; it is the mainstream material for the main insulation layer of medium and high voltage power cables.
Epoxy resin: Used for insulating rings and insulating structural components; it possesses high mechanical strength and excellent insulation properties, and is commonly used in switchgear and cable joints.
Mica products: High temperature resistant and with stable insulation properties; suitable for insulation protection in high-temperature environments such as motors and transformers.
Composite material structural components: Composed of multiple materials, such as glass fiber reinforced epoxy resin, they combine high strength and high insulation properties, and are used for support components and insulator core rods.
