High-Quality Insulators | Composite, Polymer / Silicone – Bonle Top 1 Factory in China Reliable

Looking for reliable Composite insulators? Bonle is a leading China manufacturer of polymer / silicone insulators for high-voltage transmission lines. Get a quote today!

 

Polymer Insulators

Contact Top 1 Insulator Manufacturer in China – Bonle (Fujian) Insulator Co., Ltd. for high-quality porcelain, glass, and polymer insulators. Get a quote, OEM/ODM, and factory visit info here.

 

Contact our professional insulator manufacturer for price inquiries, technical support, and factory visits. We provide high-quality porcelain, glass, and composite insulators worldwide in compliant with Standard ANSI, IEC, AS, NZS, ect…

 

We supply various types, including Porcelain Line Post Insulators and Porcelain Suspension Insulators.

High-Quality Polymer Insulators from a Leading China Manufacturer

Our Polymer Insulators (also known as composite insulators) are manufactured using advanced high-temperature vulcanized silicone rubber as the housing material, combined with a high-strength fiberglass reinforced plastic (FRP) core rod. This unique material composition provides excellent hydrophobicity, meaning the surface repels water effectively, preventing conductive water films from forming. As a premier China Insulators Manufacturer, we ensure every Polymer Insulator is designed for maximum electrical insulation and long-term durability.

 

Why Choose Our Polymer Insulators?

Compared to traditional materials, our Polymer Insulators offer significant advantages:

  • Excellent Anti-Pollution Performance: The silicone rubber surface drastically reduces pollution flashover risks, making them ideal for heavily polluted industrial and coastal environments.
  • High Mechanical Strength: The FRP core rod provides superior tensile strength while remaining lightweight, making installation much easier and reducing transportation costs.
  • Zero Maintenance & Long Lifespan: They are highly resistant to UV radiation, ozone, and extreme temperature fluctuations, ensuring a maintenance-free service life of over 30 years.
  • High Impact Resistance: Unlike ceramic insulators, polymer insulators are less prone to damage during shipping and installation.

 

Wide Applications in Power Systems

Our high-performance Polymer Insulators are widely used in various high-voltage power transmission and distribution networks. They are suitable for:

  • High Voltage Transmission Lines: Available for 11kV, 33kV, 66kV, 110kV, 220kV, and up to 500kV systems.
  • Substations: Used as post insulators and busbar support insulators.
  • Electrified Railway Systems: Providing reliable insulation for catenary and traction power networks.
  • Distribution Lines: Ideal for areas with high pollution or difficult terrain.

 

Technical Specifications

Model Rated Voltage (kV) Mechanical Load (kN) Creepage Distance (mm) Applicable Standard
FPQ-11/70 11 70 320 IEC 61109 / ANSI
FPQ-33/100 33 100 900 IEC 61109 / ANSI
FPQ-110/120 110 120 3200 IEC 61109 / ANSI
FPQ-220/160 220 160 6300 IEC 61109 / ANSI

 

Frequently Asked Questions (FAQ)

Q: What is the difference between polymer insulators and porcelain insulators?
A: The main difference lies in the housing material. Polymer Insulators use silicone rubber, which offers superior hydrophobic (water-repellent) properties and is much lighter in weight. They are less prone to breakage during installation. Porcelain insulators, on the other hand, use ceramic materials, which are heavier and can shatter under high impact, though they are highly resistant to tracking and erosion.

 

Q: Can you provide custom OEM/ODM services for Polymer Insulators?
A: Yes, absolutely. As a professional China Insulators Manufacturer, we offer full OEM and ODM services. We can customize the creepage distance, mechanical load, fitting types, and even the color of the silicone housing based on your specific project requirements. Please send us your technical drawings for a fast quote.

 

Q: Are polymer insulators suitable for high-pollution areas?
A: Yes. Our Polymer Insulators feature silicone rubber housing with excellent hydrophobicity. This water-repellent property prevents the formation of continuous water films, dramatically reducing the risk of pollution flashover in coastal or heavily industrial environments.

 

Q: What is the standard lead time for your composite insulators?
A: As a leading China Insulators Manufacturer, our standard lead time is typically 15 to 25 days after receiving your deposit. For urgent project requirements, we offer expedited production schedules. Please contact our sales team for a specific timeline based on your order quantity.