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Author: James Publish Time: 16-06-2025 Origin: Site
ADSS (All-Dielectric Self-Supporting) fiber optic cables are specifically produced for elevated applications in electric power transmission and distribution. They are adopted widely because they are made of fully dielectrics, are relatively lightweight, and can be installed even without conducting support. This article discusses the significant specifications of ADSS fiber optic cables, providing information about its structural features, mechanical performance, optical control, and environmental tolerability.
Knowledge of the structure of this kind of cable is a necessity during the correct choice and installation. Below are the key components:
Common options: 2 to 144 cores
Single-mode fibers (G.652D, G.657A1/A2) are commonly utilized.
Higher core counts are used in cases of long-distance or backbone communication.
Plastic (PBT) is used for improving the strength and deformation of pipes.
Thixotropic gel offers fiber protection against moisture and operation.
One tube generally holds up to 12 fibers.
With embedded Kevlar® (aramid yarn) as the major tensile material for maintaining strength.
Guarantees excellent tensile strength and lightweight.
While there are other designs that use a center of FRP ("Fiber Reinforced Plastic") rods as stability items.
The leading loosening move the modules around cross section strength components.
Water-blocking yarns and tapes are used to boost moisture resistance.
Core wrapping increases the capability of components.
Mainly consisting of Polyethylene (PE) followed by PE-A (resistant to arc-tracking).
AT coatings are used in high-voltage (≥35kV) environments to avert electrical tracking.
Dual sheaths are designed with extra mechanical protection for the toughest run.
ADSS cables are always developed to sustain the demanding installation conditions and operational conditions that they will expose to:
Parameter | Typical Value | Notes |
Tensile Strength | 1.0–20.0 kN | Depends on span length and sag |
Crush Resistance | ≥1000 N/100mm | Protection against external pressure |
Minimum Bending Radius | 10× cable diameter (static) | 20× cable diameter (dynamic) |
Impact Resistance | ≥20 impacts | Ensures durability during handling |
Span Length | 50–1000 meters | Customized based on application |
Weight | 50–200 kg/km | Depends on core count and sheath |
Mechanical load design must address the effect of wind pressure, the weight of the ice, and the line sag.
ADSS fiber optic cables considerably limit the signal loss over long distances.
Parameter | Typical Value | Fiber Type |
Attenuation @1310nm | ≤0.35 dB/km | Single-mode (G.652D) |
Attenuation @1550nm | ≤0.22 dB/km | Single-mode (G.652D) |
PMD (Polarization Mode Dispersion) | ≤0.2 ps/√km | For high-speed networks |
Chromatic Dispersion @1550nm | ≤18 ps/(nm·km) | Maintains signal clarity |
Operating Wavelength | 1260–1625 nm | WDM compatible |
ADSS cables look forward to survive harsh outdoor environment conditions:
Temperature Range:
Installation: -20°C to +60°C
Operation: -40°C to +70°C
Storage: -40°C to +70°C
UV Resistance:
Sheath materials are UV-resistant, which ensures that they are made to last outdoors all year round.
Moisture Resistance:
Moisture-blocking yarns and filling gel all work together to eliminate the possibility of water intrusion.
Tracking Resistance (as per the AT sheath):
This applies to the scenario when cables are in proximity with the high electric field intensity.
Electric Field Conditions:
Choose AT-sheathed ADSS cable (≥35 kV) in order to ensure discharge-related accidents.
Sag and Span Design:
Safe distance getting is the best way to make sure the safe clearance and tension during wind or ice loading.
Fittings Compatibility:
ADSS eye fittings such as tension clamps, suspension sets, and vibration dampers should be selected in order to obtain mechanical stability and decrease signal loss.
ADSS fiber optic cables provide a trusted and effective option for aerial network construction for power and telecommunication environments. The specially designed unique all-dielectric, self-supporting installation components are made easier without the need of grounding, which is usually a concern when fixing near the high-voltage lines. While opting for ADSS cable, the significant components that need to be taken care of in view of the project objectives are structure, mechanical strength, optical quality, and environmental survivability.
Uncertain which ADSS cable configuration best meets your needs? Our technical staff would be more than happy to provide you with tailor-fit recommendations and complete documentation assistance.
James is a technical manager and associate at Zion Communication.
Specializes in Optical Fiber communications, FTTH Solutions,
Fiber optic cables, ADSS cable, and ODN networks.
james@zion-communication.com
+86 13777460328
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