35kV Polymer Suspension Long Rod Insulator FXB-24-70-785mm for Transmission Lines
China Energy and Chemical Industry Co.,Ltd (CECI) offers the FXB-24-70-785mm polymer suspension long rod insulator, designed for 35kV power transmission and distribution systems. This insulator combines a silicone rubber housing with a fiberglass-reinforced resin rod and carbon steel/C45 end fittings, ensuring reliable electrical and mechanical performance under harsh outdoor conditions.
Key Selling Points
- High Creepage Distance >1050mm – minimises leakage current and improves pollution flashover resistance, ideal for dusty or coastal environments.
- Lightning Impulse Withstand >230kV – protects lines from surge overvoltages, enhancing system stability.
- Lightweight Construction – about one-tenth the weight of porcelain insulators, reducing tower and foundation loading.
- Anti-Aging and UV-Resistant Silicone – withstands outdoor exposure, high temperature, and humidity, extending service life.
- Customizable End Fittings and FRP Rod – OEM/ODM support for specific mechanical and installation requirements.
Technical Specifications
| Parameter | Value |
|---|
| Model | FXB-24-70-785mm |
| Type | Suspension Long Rod |
| Rated Voltage | 35kV |
| Lightning Impulse Withstand Voltage | >230kV |
| Power Frequency 1-minute Wet Withstand Voltage | >95kV |
| Minimum Creepage Distance | >1050mm |
| Rated Bending Load | 5kN |
Models and Options
In addition to FXB-24-70-785mm, CECI offers other polymer insulator variants such as FXB-11-70CT-330mm (short rod, 11kV class) and FXBW-1-70-235mm (anti-fog profile, 1kV class) for different voltage and application needs. Contact us for more details.
Materials and Structure
The insulator consists of a silicone rubber housing for hydrophobic and anti-pollution performance, a fiberglass-reinforced epoxy resin rod for mechanical strength, and carbon steel/C45 end fittings with anti-corrosion treatment. The design ensures water penetration resistance and stable metal-to-rubber bonding.
Applications
This polymer insulator is widely used in power transmission and distribution projects, including:
- High-voltage transmission line mechanical support and insulation
- Substation and converter station insulation
- Railway catenary and ground equipment insulation
- Rural and urban power grid upgrading projects
- Wind power projects
Customization
CECI provides OEM/ODM services for polymer insulators. Customizable features include end fitting design, FRP rod core length and diameter, and special coating for extreme environments. Minimum order quantity is 100 units with quick turnaround.
Case Study
Over the past 3 years, CECI has supplied more than 10,000 polymer insulators to utility companies, power EPC contractors, and railway operators in Brazil, Italy, Turkey, and Vietnam. The insulators demonstrated enhanced line stability, reduced maintenance, and improved pollution resistance, leading to customer satisfaction and repeat orders.
Frequently Asked Questions (FAQ)
1. What is the minimum order quantity (MOQ)?
100 units per model.
2. What are the payment terms?
30% down payment by T/T before production, 70% balance by T/T before shipping.
3. Do you offer free samples for testing?
We can discuss sample policy based on volume; typically samples are provided with freight collect.
4. What certifications do you have?
We have a Type Test Report for 35kV composite pin insulator (Model FPQ-35/6(5)) according to IEC 60815, 61109, 62217, 61466, issued by Suzhou Electrical Apparatus Science Research Institute.
5. Can you customise end fittings?
Yes, we offer OEM/ODM customization for end fittings and FRP rod core to meet your specific design.
6. What is the typical delivery time for 100 units?
Usually 15-25 working days after down payment.
7. How do you ensure product quality?
We conduct ex-factory tests including mechanical and electrical tests per IEC standards. Our factory is 30,000 m² with an experienced R&D team.
8. What is the shelf life of the insulator?
Silicone rubber material has excellent aging resistance; under normal storage conditions, service life exceeds 20 years.
Inquiry Information
For pricing, detailed specifications, or to place an order, please contact:
Richard
Email: sales@gridinsulators.com
Tel/WhatsApp: +86 15038311850 / +86 19515526916
Address: Room 1502, NO. 12, Shangwu Waihuan Road, Zhengdong New District, Zhengzhou, Henan, China
Payment: 30% T/T in advance, 70% before shipment.
Delivery: FOB/CIF available.
Acceptance: Ex-factory test per standards.
Product Images and Alt Suggestions
Image filename: FXB-24-70-785mm.png. Alt: FXB-24-70-785mm 35kV polymer suspension long rod insulator silicone rubber.
