Long Span ADSS Cable – All-Dielectric Self-Supporting Fiber Optic Cable
Long Span ADSS Cable is a specialized optical fiber cable engineered for aerial deployment over extended distances without the need for messenger wires or additional support structures. As a completely non-metallic solution, it contains no conductive components, making it inherently immune to lightning strikes, electromagnetic interference, and electrical induction. This cable type is predominantly installed on overhead high-voltage transmission and distribution lines, utilizing existing utility towers and poles-whether steel lattice, wood, concrete, or steel-to deliver high-capacity telecommunications infrastructure.
Long Span ADSS cables are custom-engineered to operate under full environmental loading conditions, ensuring safe, reliable, and long-term performance even in the most demanding outdoor environments.
Key Advantages
1. Self-Supporting, No Messenger Wire Required
Long Span ADSS cables are fully self-supporting, eliminating the need for separate messenger wires or lashing. This dramatically reduces installation time, material costs, and complexity.
2. All-Dielectric Construction
With zero metallic components, ADSS cables are immune to electromagnetic interference (EMI) and lightning strikes. They carry no fault current, require no grounding, and are electrically invisible to the power system-making them ideal for installation alongside energized high-voltage lines.
3. Live-Line Installation Capability
Because ADSS cables are non-conductive, they can be installed on live power lines without service interruption or revenue loss. This is a critical advantage for utility operators who cannot afford scheduled outages.
4. Lightweight Design
A typical 12-fiber ADSS cable weighs only approximately 85–92 kg/km-up to 70% lighter than OPGW alternatives. This reduced weight minimizes structural loading on existing poles and towers, often eliminating the need for costly reinforcement.
5. Exceptional Environmental Durability
ADSS cables are engineered to withstand extreme conditions: -40°C ice storms, +70°C desert heat, high winds, heavy ice loading, and prolonged UV exposure. Double-jacket designs provide additional protection for long-span applications under severe weather loads.
6. Long Service Life
With rigorous material control and robust construction, Long Span ADSS cables offer an operational lifespan exceeding 30 years.
Typical Applications
Power utility communications – SCADA, protection relays, and voice transmission over HV corridors (110 kV to 500 kV)
Telecommunications backbone – Aerial deployment for telcos and private network operators
River crossings, valley spans, and highway flyovers – Long-span installations exceeding 1,000 meters
OPGW drop-in applications – Tail cables from OPGW termination towers into substation control rooms
Medium-voltage automation – 6–35 kV ring-main units and smart meter networks
Key attributes
|
Brand Name |
Sheng Tang |
Model Number |
ADSS |
|
Type |
Fiber Optic Cable |
Place of Origin |
Guangdong, China |
|
Number of Conductors |
≥ 10 | Model Number | ADSS |
| Loose tube | PBT | Number of C | ≥ 10 |
| Fiber Type | single mode/multimode | Sheath | PE /AT |
| Fiber count | 2-288 | MOQ | 2000Meter/Meters |
| Application | Telecommunication, Aerial, Duct | port | GUANGZHOU |
| Place of Origin | Guangdong, China (Mainland) |
Packaging and delivery
| Packaging Details | ADSS fiber optic cable 's packing way :wooden drum or wooden iron drum 1000 m to 3000 m per drum, or any length size as customer required. | Port of dispatch | GUANGZHOU,SHENZHEN |
| Selling Units | Single item | Single package size | 20X25X10 cm |
| Single gross weight | 2.000 kg | Packaging examples |  |
Lead time
| Quantity (meters) | 1 - 1000 | 1001 - 30000 | 30001 - 600000 | > 600000 |
| Lead time (days) | 3 | 10 | 15 | To be negotiated |
Customization options
| Option | Min. order: | Customization fee |
|
Customized logo As requested |
1000 meters | -- |
|
Customized packaging As requested |
1000 meters | -- |
|
Graphic customization As requested |
1000 meters | -- |
Characteristics
1. Large span lengths and the largest span is over 1700 m.
2. Non-metallic material, with high insulating property performances as well as lightning-proof.
3. Special anti-track outer sheath protection, strong anti-electro-corrosion ability.
4. The aramid yarn ensure the cable's tensile resistance, and also have good bullet-proof performance.
5. Light weight with small diameter, reducing the load caused by ice and wind as well as the load on the tower.
6. Can be installed without shutting off the power.
Company Information
Packaging & Shipping
FAQ
Q1: What is the maximum span length for a Long Span ADSS cable?
Standard Long Span ADSS designs support spans up to 800 meters (2,600 feet). Custom-engineered solutions can achieve spans exceeding 1,200 meters, with some manufacturers reporting installations up to 1,380 meters. The achievable span depends on fiber count, cable weight, environmental loading (wind, ice), and required sag.
Q2: Can ADSS cables be installed on energized high-voltage power lines?
Yes. Because ADSS cables contain no metallic components, they are non-conductive and can be installed on live lines without power interruption, subject to local regulations. This is one of the primary advantages over OPGW, which typically requires scheduled outages for installation.
Q3: What is the difference between PE and Anti-Tracking (AT) jackets?
PE (polyethylene) jackets are suitable for voltage environments up to 35 kV and offer a cost-effective, UV-stable solution. Anti-Tracking (AT) jackets are engineered with space-grade arc-resistant materials to prevent dry-band arcing damage in high-voltage fields from 110 kV up to 500 kV. Choosing the correct jacket is critical for long-term reliability.
Q4: What is the typical lifespan of a Long Span ADSS cable?
With proper installation and maintenance, ADSS cables typically provide 25 to 40 years of service life. High-quality manufacturers employing strict craft and raw material controls report lifespans exceeding 30 years. Routine inspections and adherence to manufacturer recommendations can further extend operational life.
Q5: How does ADSS compare to OPGW for power line applications?
Neither is universally superior. OPGW is typically chosen for new transmission line builds or when replacing existing shield wires. ADSS is the preferred solution for retrofitting fiber optics onto already-energized lines where outages are impractical. ADSS also offers approximately 30% lower initial cost and eliminates grounding requirements, while OPGW may offer longer design life in certain high-voltage applications.
Long Span ADSS cable represents a mature, field-proven solution for delivering high-capacity fiber optic connectivity across challenging aerial environments. Its combination of all-dielectric safety, self-supporting design, and exceptional environmental resilience makes it the cable of choice for utilities and telecommunications providers worldwide.