Applied in railway electrification overhead contact lines, composite insulators provide mechanical connection and electrical insulation between the contact line and support structures. Manufactured with an E-CR fiber-reinforced polymer rod and an HTV silicone rubber housing, they support both single-insulation and double-insulation designs.
The composite insulators for electrical railway feature high hydrophobicity, excellent pollution resistance, and superior vibration resistance, resulting in low maintenance requirements. Utilizing a patented integral molding injection/sealing process, they comply with ANSI/IEC standards and are available for customization.
Suitable for catenary of electrified railways with 230kV and below, realizing mechanical connection and electrical insulation between catenary and tower.
Includes E-CR fiber reinforced polymer rod, metal fittings, and HTV silicone rubber housing; strong hydrophobicity, excellent tracking and erosion resistance.
HTV silicone rubber has patented formula and production process, adopts integral molding injection/sealing technology, low leakage current, and reduced cleaning and maintenance frequency.
Product Type | Parameter Category | Key Indicators | Range/Description |
Cantilever Type | Voltage Class | 27.5kV | |
Mechanical Performance | Specified Mechanical Load | 8kN | |
Electrical Performance | Lightning Impulse Withstand Voltage | 270kV - 310kV | |
Minimum Creepage Distance | 1200mm - 1600mm | ||
Structural Dimensions | Height | 760mm - 890mm | |
Dry Arc Distance | 490mm - 520mm | ||
Tension Type | Voltage Class | 27.5kV | |
Mechanical Performance | Specified Mechanical Load | 120kN | |
Electrical Performance | Lightning Impulse Withstand Voltage | 270kV - 310kV | |
Minimum Creepage Distance | 1200mm - 1600mm | ||
Phase-Segmented Type | Voltage Class | 27.5kV | |
Mechanical Performance | Specified Mechanical Load | 100kN | |
Electrical Performance | Lightning Impulse Withstand Voltage | 310kV - 420kV | |
Minimum Creepage Distance | 1600mm - 2000mm |
