- FRP Cross arm
- Customizable
- 100
Composite Cross-Arm is a new type of transmission line tower component that highly integrates the mechanical structure of supporting conductors with electrical insulation functions.The main execution standards ofthe product arelEC 61109,IEC61952,GB/T 20142,GB/T19519,DL/T 1580,DL/T376,Q/GDW12069.Item
Product details
Composite Cross-Arm is a new type of transmission line tower component that highly integrates the mechanical structure of supporting conductors with electrical insulation functions.The main execution standards ofthe product arelEC 61109,IEC61952,GB/T 20142,GB/T19519,DL/T 1580,DL/T376,Q/GDW12069.
| Item | Specification |
| Material Composition | Fiberglass + Unsaturated Polyester Resin + Foam Core Square (customizable) |
| Cross Section | 20mm × 20mm to 200mm × 200mm (custom available) |
| Outer Dimension Range | 2mm to 10mm (based on load requirement) |
| Wall Thickness | 30kg/m³ - 100kg/m³ (typical: 60kg/m³) |
| Foam Density | Grey, Green, Yellow, Custom Colors Available |
| Color Options | Grey, Green, Yellow, Custom Colors Available |
| Surface Finish | Smooth, Matte, UV-resistant Coating Optional |
| Length | 6m standard (custom lengths available) |
Characteristics and Advantages of Composite Crossarms
Tips: LEADFRP is a professional manufacturer and service provider of electrical insulation products.
The following two methods are available for customers with different needs.
Applications of Composite Insulating Cross Arms
Composite Insulating Cross Arms are widely used in power transmission and distribution systems as an advanced alternative to traditional steel or concrete cross arms. By integrating mechanical strength and electrical insulation into one structure, they significantly improve line safety, reliability, and service life.
1. Power Transmission Lines
Used in high-voltage and extra-high-voltage overhead transmission lines (35kV–1000kV)
Provide strong mechanical support for conductors while ensuring excellent electrical insulation
Ideal for coastal, heavy pollution, high-humidity, and corrosive environments
2. Power Distribution Lines
Applied in 10kV / 20kV / 35kV distribution networks
Support compact line design, reducing phase-to-phase distance and right-of-way requirements
Enhance public safety by minimizing electric shock risks
3. Substations and Electrical Structures
Used as structural cross arms in substation frameworks
Support busbars, disconnectors, and other high-voltage equipment
Improve overall insulation performance and reduce maintenance needs
4. Renewable Energy and Special Applications
Suitable for wind power and solar power collection systems
Perform reliably in high salt fog, strong UV, and harsh outdoor conditions
Well-suited for railway electrification and live-line working environments
5. Replacement of Traditional Cross Arms
Replace steel cross arms combined with insulator strings
Reduce component count, installation time, and maintenance cost
Offer a long service life, typically 30 years or more
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