Description
Our post composite insulator is a high-performance insulation component used in power systems to support and isolate live conductors from earthed structures. It is widely applied in substations, overhead lines, distribution equipment, and railway electrification projects, providing reliable insulation and mechanical support for high-voltage power grids.
Key Features
- Excellent Insulation Performance: High dielectric strength and resistance to electrical breakdown, ensuring stable insulation even in harsh environments.
- High Mechanical Strength: Strong resistance to bending, torsion, and vibration, with stable support for conductors and equipment.
- Weather & Corrosion Resistance: Resistant to UV radiation, moisture, salt spray, and chemical corrosion, suitable for long-term outdoor use.
- Lightweight & Compact: Lightweight design simplifies installation and transportation, with a compact structure for space-saving installation.
- Anti-pollution & Anti-icing: Special surface treatment resists contamination and icing, reducing flashover risk in polluted or cold environments.
- Long Service Life: High-quality silicone rubber and fiberglass core ensure durability and stable performance over years of operation.
Application Scope
| Application Scenario | Applicable Voltage Range (AC/DC) | Core Advantages |
|---|---|---|
| Substation Equipment Support | 10kV ~ 500kV | Reliable insulation and mechanical support for switchgears, transformers, and busbars |
| Overhead Distribution Lines | 10kV, 20kV, 35kV | Weather resistance and anti-pollution performance for outdoor line insulation |
| Railway Electrification Systems | 27.5kV, 110kV | Vibration resistance and stable performance for railway power supply networks |
| Distribution Transformers & Switchgear | 10kV ~ 220kV | Compact design and high mechanical strength for equipment insulation |
| Industrial & Mining Power Systems | 10kV ~ 110kV | Corrosion resistance and adaptability to harsh industrial environments |
Technical Advantages
- Compliant with IEC 60815, GB/T 19519, and other international standards
- Excellent hydrophobicity and self-cleaning surface, reducing maintenance costs
- Stable electrical performance under extreme temperatures (-40°C ~ +80°C)
- High resistance to aging and environmental erosion, ensuring long-term reliability
Our post composite insulator combines superior insulation, mechanical strength, and environmental adaptability, making it an essential component for safe and stable operation of power systems.












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