OPGW Fiber Optic Cable: Enhancing Power Transmission and Communication
The Optical Fiber Composite Overhead Ground Wire (OPGW) is a revolutionary solution that combines the functionality of an overhead ground wire with fiber optic communication capabilities. Designed for power transmission lines, OPGW cables not only protect against lightning strikes but also provide a reliable platform for high-speed data transmission, making them indispensable for modern power grids.
Description
The OPGW fiber optic cable integrates both power line protection and communication functionalities into a single structure. By utilizing materials such as aluminum-clad steel wire or aluminum alloy wire, it ensures superior conductivity while maintaining the integrity of the optical fibers. This design eliminates the need for additional hanging lines, reducing installation costs and improving electromagnetic compatibility.
Applications
- Transmission power lines
Features
- Fiber protection: Aluminum-clad steel wire or aluminum alloy wire shields the optical fibers, ensuring stability and reliability.
- Cost-effective: Eliminates the need for separate hanging cables, saving on installation expenses.
- Electromagnetic corrosion resistance: Provides worry-free operation for the fiber unit in harsh environments.
- Versatile deployment: Suitable for new installations and as a replacement for existing ground lines.
Optical Characteristics
| Fiber Type | @850nm Attenuation Coefficient (dB/km) | @1300nm Attenuation Coefficient (dB/km) | @1310nm Attenuation Coefficient (dB/km) | @1550nm Attenuation Coefficient (dB/km) | OFL Bandwidth @850nm (MHz·km) | OFL Bandwidth @1300nm (MHz·km) | Numerical Aperture (NA) | Cable Cut-off Wavelength (nm) |
|---|---|---|---|---|---|---|---|---|
| G.652 (9/125μm) | / | / | ≤0.36 | ≤0.22 | / | / | 0.200±0.015 | ≤1260 |
| G.655 (10/125μm) | / | / | ≤0.40 | ≤0.23 | / | / | / | ≤1450 |
| 50/125μm | / | ≤1.0 | / | / | ≥500 | ≥500 | 0.200±0.015 | / |
| 62.5/125μm | ≤3.0 | ≤1.0 | / | / | ≥200 | ≥500 | 0.275±0.015 | / |
Technical Specifications
| Item | Strand Unit | Nominal Diameter (mm) | Material | Total Breaking Force (kN) | Elastic Modulus (GPa) |
|---|---|---|---|---|---|
| OPGW 24 | 5 | 12.6 | 20AS | 17.75 | 162.00 |
| OPGW 30 | 5 | 14.55 | 20AS | 17.99 | 162.00 |
| OPGW 36 | 5 | 15.6 | 20AS | 17.95 | 162.00 |
| OPGW 48 | 5 | 17.1 | 20AS | 17.53 | 162.00 |
Conclusion
The OPGW fiber optic cable represents a significant advancement in integrating power transmission and communication systems. Its ability to combine the protective functions of an overhead ground wire with high-speed data transmission makes it an essential component for modernizing power grids. By enhancing both safety and connectivity, OPGW cables play a crucial role in supporting the growing demands of today’s digital infrastructure.
