| Customization: | Available |
|---|---|
| Application: | High-voltage |
| Material: | Composite Polymer |
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The 33kV post-type polymer composite insulator is a high-performance insulating device designed for medium to high-voltage distribution systems. Made from advanced composite materials, it features excellent electrical insulation, mechanical strength, and long-term weather resistance. It is widely used in urban grids, rural power lines, and industrial substations.
The insulator consists of three main components:
Core Rod: Made of epoxy-resin-impregnated fiberglass, offering high tensile strength and mechanical support.
Housing: Molded from premium silicone rubber, providing superior hydrophobicity and anti-pollution flashover capabilities.
Metal End Fittings: Hot-dip galvanized steel or aluminum alloy, ensuring reliable mechanical and electrical connection with excellent corrosion resistance.
| Item | Specification |
|---|---|
| Rated Voltage | 33kV |
| Power Frequency Withstand | ≥ 95kV (wet) |
| Lightning Impulse Withstand | ≥ 170kV |
| Tensile Strength | ≥ 70kN |
| Overall Height | 350mm - 550mm (customizable) |
| Leakage Distance | ≥ 340mm |
| Operating Temperature | -40ºC ~ +55ºC |
| Pollution Class | ≥ Class III |
| Connection Type | Flange / Threaded / Customized |
Excellent Insulation: Silicone rubber housing with high hydrophobicity prevents flashovers and leakage.
Lightweight & Easy Installation: Over 40% lighter than porcelain insulators, reducing handling and installation costs.
UV & Aging Resistance: Operates reliably under extreme climate conditions.
Compact Design, Low Maintenance: Maintenance-free for long-term stable performance.
Seismic Resistance: Ideal for regions prone to earthquakes and severe weather.
This insulator is suitable for 33kV power distribution lines, outdoor switchyards, urban power upgrades, and industrial transmission systems. It is also effective in high-altitude, high-humidity, and heavy-pollution environments.
We offer flexible OEM/ODM customization services. Parameters such as insulation length, connection type, color, pollution resistance level, etc., can be customized. Drawings or engineering project specs are welcome for batch production.
As a direct manufacturer, WishPower offers factory-direct pricing with guaranteed quality and lead time. All products are ISO certified and type-tested, suitable for both domestic and international markets.
WishPower is a professional factory manufacturing composite insulators. We serve various industrial application needs. If you are sourcing equipment, feel free to contact us for product quotations.
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