The typical diameter of a 24-core ADSS optical fiber cable ranges from approximately 10 mm to 12 mm, depending on the manufacturer and sheath type.

Cable Structure and Construction

A 24-core ADSS cable consists of 24 single-mode optical fibers (usually ITU-T G.652.D) arranged in loose tubes, with 6 fibers per tube. The loose tubes are filled with a water-blocking compound to prevent moisture ingress. The tubes are reinforced with aramid (Kevlar) yarns for tensile strength, and the cable is completed with a polyethylene (PE) outer sheath or an anti-tracking (AT) sheath for high-voltage applications .

Mechanical and Environmental Features

• Self-supporting design: Can be installed on overhead power lines without metallic support.
• Lightweight and small diameter: Reduces ice, wind, and tower load impact.
• Tensile strength: Enhanced by aramid yarns, allowing spans exceeding 1000 meters.
• Environmental suitability: Resistant to UV, water, and temperature variations, suitable for high-voltage transmission lines and aerial installations .

Diameter Considerations

The exact diameter may vary slightly depending on:

• Sheath type: Standard PE vs. anti-tracking (AT) sheath for higher voltage lines.
• Reinforcement layers: Additional aramid yarns for longer spans or higher mechanical load.
• Manufacturer specifications: Some manufacturers may offer slightly thicker or thinner cables to meet project requirements . For most 24-core ADSS cables, the outer diameter is generally around 10–12 mm, which is suitable for standard aerial installation hardware and supports. For precise installation planning, it is recommended to consult the manufacturer's datasheet for the specific cable model being used .

Summary

A 24-core ADSS optical fiber cable is a compact, self-supporting, and high-strength cable designed for aerial deployment on power lines. Its diameter typically ranges from 10 mm to 12 mm, with variations depending on sheath type, reinforcement, and manufacturer design. This small diameter, combined with lightweight construction, ensures minimal mechanical load on towers while maintaining excellent tensile and environmental performance.