| Customization: | Available |
|---|---|
| Application: | High-voltage |
| Material: | Composite Polymer |
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The 33kV pin-type composite insulator is a vital component in medium and high-voltage power transmission systems. Designed with advanced polymer materials, it offers excellent insulation properties, strong anti-pollution ability, compact structure, and long service life. It is widely used in power lines, substations, and distribution networks.
The insulator mainly consists of three parts: a fiberglass core rod, silicone rubber housing, and metal end fittings.
Core Rod: Made of high-strength epoxy glass fiber, ensuring superior tensile and bending strength.
Housing: Made of premium silicone rubber with outstanding hydrophobicity, UV resistance, and aging resistance.
End Fittings: Crafted from hot-dip galvanized steel or aluminum alloy, ensuring strong and reliable connections.
All designs conform to IEC61109 and GB/T19519 standards, suitable for various environments and climatic conditions.
Rated Voltage: 33kV
Power Frequency Withstand Voltage: ≥95kV (dry), ≥75kV (wet)
Mechanical Failing Load: ≥8kN
Leakage Distance: ≥400mm
Operating Temperature: -40ºC to +60ºC
Pollution Class: IV
Installation Method: Threaded or flange mounting
Superior Insulation: Prevents flashover and breakdown, ensuring stable power delivery.
High Pollution Resistance: Ideal for dusty, humid, or industrial environments.
Lightweight Design: Approximately 40% lighter than ceramic insulators, easier to transport and install.
Shock and Vibration Resistance: Suitable for seismic zones or high wind areas.
Long Service Life: Silicone rubber is highly resistant to aging and can last over 15 years.
Eco-Friendly Materials: Non-toxic, recyclable, and environmentally compliant.
The 33kV pin-type composite insulator is widely used in medium-voltage overhead lines, substations, building distribution systems, and renewable energy projects such as wind and solar farms. It is suitable for coastal, humid, industrial, and polluted areas.
We offer comprehensive customization options:
Dimensions, color, and insulation length
End fitting types (ball & socket, threaded, flanged, etc.)
Enhanced anti-pollution coating
Custom voltage ratings
OEM/ODM services are available, with fast prototyping based on drawings or samples, tailored to your application or branding needs.
If you have equipment purchasing needs, please contact us. We are a professional composite insulator manufacturer. We serve various industries and welcome inquiries for product quotes.
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