China GFRP Strength Member for Optical Cables - High Tensile Strength from Leading Suppliers and Factory
Product Introduction
GFRP Features Advantages
- High tensile strength, high modulus, low thermal conductivity, low extension, low expansion, wide temperature range;
- Non-metallic materials are not sensitive to electric shock, suitable for lightning, rain and other climatic environment areas;
- Chemical corrosion resistance, compared with the metal core, GFRP reinforced core will not produce gas caused by the chemical reaction of metal and oil paste and affect the fiber transmission index;
- Compared with the metal core, GFRP reinforced core has the characteristics of high tensile strength, light weight, excellent insulation performance, and no electromagnetic interference;
- The cable with GFRP reinforced core can be installed next to the power line and the power supply device, and will not be interfered by the induced current generated by the power line or the power supply device;
- Smooth surface, stable size, easy processing and laying, wide range of application.
GFRP Core Specifications
| Standard diameter table Φ (Unit mm) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.10 | 1.20 | 1.30 | 1.40 |
| 1.50 | 1.60 | 1.70 | 1.80 | 1.90 | 2.00 | 2.10 | 2.20 | 2.30 | 2.40 | 2.50 |
| 2.60 | 2.70 | 2.80 | 3.00 | 3.30 | 3.40 | 3.50 | 3.80 | 4.00 | 4.60 | 5.00 |
- Diameter (Φ0.40-Φ2.3mm) Standard delivery length 50.4km/barrel or customized;
- Diameter (Φ2.40-Φ3.5mm) Standard delivery length 25.2km/barrel or customized;
- Diameter (Φ3.60-Φ5.0mm) Standard delivery length 12.5km/barrel or customized;
- Note: Non-standard diameter and non-standard length can be produced according to user requirements.
GFRP Flat Core Specifications
| 0.60x1.30mm | 0.70x3.00mm | 1.00x3.00mm | 1.20x3.80mm | 1.27x3.00mm | 1.40x3.00mm | 1.60x3.00mm |
- Thickness (1.00mm and below) Standard delivery length ≧25km Jet code meter
- Thickness (1.20mm and above) standard delivery length ≧15km inkjet meter
- Non-standard size and non-standard length can be produced according to user requirements.
Packaging & Storage
- The cable tray shall not be placed in a flat position and shall not be stacked high;
- Disc reinforcement core shall not be made long distance rolling;
- Shall not be subjected to collision, crushing and any mechanical damage;
- Prevent moisture and long-term exposure, and prohibit long-term rain;
- Storage and transportation temperature range: -40°C ~ +60°C;
Technical Parameter
| Test item | Unit (or condition) | Technical parameter |
|---|---|---|
| Out-of-roundness | % | <5 |
| Appearance | No burrs, no cracks, feel smooth | |
| Diameter tolerance | % | ±2 |
| Specific gravity | g/cm3 | 2.05~2.15 |
| Tensile strength | MPa | ≥1100 |
| Tensile modulus of elasticity | GPa | ≥50 |
| Bending strength | MPa | ≥1100 |
| Flexural elastic modulus | GPa | ≥50 |
| Elongation at break | % | 2.5% ≤ X ≤ 4% |
| Coefficient of linear expansion | 1/℃(-30℃~+80℃) | ≤8×10-6 |
| Thermal shrinkage rate | % | 0 |
| Water absorption | % | ≤0.1 |
| Minimum instantaneous bending radius | mm(20℃±5℃) | 25D |
| High temperature bending property | (50D,120℃,100h) | No burrs, no cracks, feel smooth, no bending, can spring straight |
| Low temperature bending property | (50D,-40℃,100h) | No burrs, no cracks, feel smooth, no bending, can spring straight |
| Torsional property | ±360°/m | Indeterminate |
Frequently Asked Questions
What is GFRP optical cable reinforcement?
It is a high-performance engineering composite material made by a pultrusion process, using resin as a matrix and glass fiber as reinforcement. It is generally placed in the center of optical cables to support fiber units and improve tensile strength.
Why choose GFRP over traditional metal reinforcements?
GFRP non-metallic reinforcements overcome the defects of traditional metal cores by offering excellent corrosion resistance, lightning resistance, no electromagnetic interference, lighter weight, and high tensile strength.
Can GFRP reinforced cables be installed near power lines?
Yes. Because GFRP is a non-metallic material with excellent insulation properties, it can be safely installed next to power lines and power supply devices without being interfered with by induced currents.
What are the standard delivery lengths for GFRP cores?
Standard lengths vary by diameter: 50.4km/barrel for Φ0.40-Φ2.3mm, 25.2km/barrel for Φ2.40-Φ3.5mm, and 12.5km/barrel for Φ3.60-Φ5.0mm. Custom non-standard lengths are also available upon request.
How should GFRP reinforced cores be stored?
The cable trays should not be placed flat or stacked high. They must be protected from collision, crushing, moisture, and long-term exposure to rain or direct sunlight. Long-distance rolling of the discs is also prohibited.
What is the required temperature range for storing and transporting GFRP cores?
The safe storage and transportation temperature range for GFRP reinforced cores is between -40°C and +60°C.