ADSS All-Dielectric Self-Supporting Optical Fiber Cable (2-288 Cores)

The ADSS (All-Dielectric Self-Supporting) cable is a specialized fiber optic cable designed for aerial installation on power transmission lines without the need for a metallic support wire. It features a loose tube stranded structure that provides exceptional durability and electrical immunity, making it the standard choice for modern telecommunications infrastructure along utility corridors.

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Core Product Features

• All-Dielectric Construction: Contains no metallic components, ensuring immunity to electromagnetic interference and safety when installed near high-voltage power lines.
• High-Tensile Aramid Strength: Reinforced with layers of aramid yarn (Kevlar) to provide the necessary tensile strength for long-span aerial applications.
• Environmental Protection: Available with standard PE (Polyethylene) sheathing or AT (Anti-Tracking) material to prevent electrical erosion in high-voltage environments.
• Water-Blocking Technology: Features a multi-stage waterproofing system, including water-resistant filling compounds in the loose tubes and water-blocking tapes/yarns throughout the cable core.
• Broad Capacity: Supports a wide range of fiber counts from 2 up to 288 cores to meet varying network density requirements.

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Technical Performance Parameters (Ref)

The following table summarizes key physical and mechanical properties based on the cable’s outer diameter:

Outer Diameter (mm)	Weight (kg/km) PE / AT	Max Allowable Working Tensile (kN)	Break Strength (kN)	Suitable Span (m) (NESC Standard A)
11.8	117 / 124	4	10	160
12.6	133 / 141	10	24	370
13.5	155 / 163	18	45	570
14.4	177 / 186	26	60	750
14.8	195 / 204	34	85	880

Note: “D” in technical calculations refers to the actual diameter of the cable.

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Professional Applications

• Power Transmission Corridors: Specifically engineered for installation on the same poles as 220V and below power transmission lines.
• Self-Supporting Aerial: Ideal for overhead spans where a lightweight, high-strength, non-conductive cable is required.
• Extreme Environments: Built to operate reliably in temperatures ranging from -40°C to +70°C.

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Internal Construction Layers

1. Outer Sheath: PE or AT material for primary environmental protection.
2. Aramid Yarn: High-strength synthetic fibers for tensile integrity.
3. Inner Sheath: A thin PE layer that provides additional protection to the core.
4. Loose Tube: High-modulus tubes containing $250\mu m$ fibers and water-resistant jelly.
5. Central Strength Member: A non-metallic FRP (Fiber Reinforced Plastic) rod at the center of the core.
6. Water-Blocking Components: Tapes and yarns to prevent longitudinal water migration.