All-Dielectric Self-Supporting (ADSS) Fiber Optic Cable: A Comprehensive Guide
The All-Dielectric Self-Supporting (ADSS) fiber optic cable is a cutting-edge solution designed for aerial installations in power lines and FTTH networks. This advanced technology eliminates the need for metallic components, making it non-conductive and highly suitable for environments with high voltage transmission. With its self-supporting structure, ADSS cables offer ease of installation and superior performance in challenging conditions.
Description
ADSS fiber optic cables are constructed with an all-dielectric structure, ensuring they contain no metal materials. This design makes them ideal for various power line applications, including those with transmission voltages up to 110kV, where Polyethylene (PE) outer sheaths are used. For higher voltage lines exceeding 110kV, electric corrosion-resistant (AT) outer sheaths are employed to enhance durability and reliability.
Applications
ADSS cables are widely utilized in:
- FTTH optical networks
- Aerial self-supporting constructions
Features
- All dielectric materials: Non-conductive, ensuring safety in high-voltage environments.
- Self-supporting design: Facilitates easy and convenient installation without additional support structures.
- Fiber Reinforced Polymer (FRP) as the central strength member: Provides robustness while maintaining a non-metallic structure.
- Water-blocking material inside the cable: Protects against moisture ingress and enhances longevity.
- Loose tube with fiber jelly compound: Offers superior protection for the fibers.
- Outer sheath options (PE, MDPE, HDPE): Ensures excellent environmental and mechanical performance.
- Customizable span lengths: Available in standard spans of 80 meters and 120 meters, with customization options.
Optical Characteristics
| Fiber Type | @850nm Attenuation Coefficient (dB/km) | @1300nm Attenuation Coefficient (dB/km) | @1310nm Attenuation Coefficient (dB/km) | @1500nm Attenuation Coefficient (dB/km) | OFL Bandwidth @850nm (MHz·km) | OFL Bandwidth @1300nm (MHz·km) | Numerical Value (NA) | Cable Cut-off Wavelength (nm) |
|---|---|---|---|---|---|---|---|---|
| OS1 (9/125μm) | / | / | ≤0.36 | ≤0.22 | / | / | / | ≤1260 |
| OM1 (62.5/125μm) | ≤3.0 | ≤1.5 | / | / | ≥200 | ≥500 | 0.275±0.015 | / |
| OM2 (50/125μm) | ≤3.0 | ≤1.5 | / | / | ≥500 | ≥500 | 0.200±0.015 | / |
| OM3 (50/125μm) | ≤3.0 | ≤1.5 | / | / | ≥1500 | ≥500 | 0.200±0.015 | / |
| OM4 (50/125μm) | ≤3.0 | ≤1.5 | / | / | ≥3500 | ≥500 | 0.200±0.015 | / |
Technical Specifications
| Item | Specifications |
|---|---|
| Optical Cable Core | 1 Tube * 12 Core |
| Fiber Color | Blue, Orange, Green, Brown, Gray, White, Red, Black, Yellow, Purple, Pink, Aqua |
| Loose Tube Diameter | 2.0 ± 0.1mm |
| Strength Member | FRP (2.0 ± 0.1mm * 2) |
| Outer Jacket Material | MDPE (UV) |
| Outer Jacket Thickness | 1.7 ± 0.1mm |
| Permit Span | 80 M |
| Permit Wind Speed | 20 KM/h |
| Permit Thickness of Ice | 0 mm |
| Cable Nominal Diameter | 8.0 ± 0.3 mm |
| Cable Weight | 70 ± 5% Kg/KM |
| Bending Radius (Static) | 10 D |
| Bending Radius (Dynamic) | 20 D |
| Flattening Force (Long term) | 200N/100mm |
| Flattening Force (Short term) | 500N/100mm |
Conclusion
The All-Dielectric Self-Supporting (ADSS) fiber optic cable represents a significant advancement in telecommunications infrastructure, particularly for aerial installations in power lines and FTTH networks. Its innovative design ensures safety, durability, and ease of deployment in diverse environments. By eliminating metallic components and incorporating advanced materials, ADSS cables provide reliable performance and long-term value, making them an essential choice for modern communication systems.
