The GRP Fiberglass Square Insulation Cross Arm is a composite insulator component made from high-strength fiberglass reinforced polyester (FRP). It features lightweight, high strength, corrosion resistance, and excellent weatherability. This cross arm can be directly installed on power poles or tran
Product details
The GRP Fiberglass Square Insulation Cross Arm is a composite insulator component made from high-strength fiberglass reinforced polyester (FRP). It features lightweight, high strength, corrosion resistance, and excellent weatherability. This cross arm can be directly installed on power poles or transmission towers to support power lines and ground wires while ensuring electrical insulation. The FRP material maintains stable performance under various environmental conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Material | Fiberglass Reinforced Polyester (FRP) |
| Size | 50×50mm / 60×60mm / customizable |
| Length Range | 1.0m ~ 3.0m (customizable) |
| Bending Strength | ≥200 MPa |
| Tensile Strength | ≥250 MPa |
| Temperature Range | -40ºC ~ +120ºC |
| Weight | Approx. 5-15 kg / piece (depending on size) |
| Color | Yellow, Green, Grey or customizable |
| Installation | Bolt-fixed or clamping type |
Performance Features
1. Excellent Insulation - Prevents leakage and flashover accidents in power lines.
2. Superior Corrosion Resistance - Performs well in salt fog, humidity, and high-pollution environments.
3. Lightweight Design - About one-third the weight of steel cross arms, reducing transportation and installation costs.
4. High Mechanical Strength - Outstanding tensile and flexural strength for line stability.
5. Maintenance-Free - Long service life of over 30 years without frequent anti-corrosion treatment.
Industry Applications
Fiberglass cross arms are widely used in high-voltage transmission lines, urban distribution networks, railway electrification systems, and coastal or island power projects. Their durability and insulation advantages make them ideal replacements for traditional steel cross arms, even under harsh environmental conditions.
Customization Service
LEADFRP offers customized fiberglass cross arms in various sizes, strength grades, and surface treatments. We can manufacture according to IEC, ASTM, or other international standards to meet diverse engineering requirements.
