The primary standard for all-dielectric self-supporting (ADSS) optical cables is IEEE 1222-2019, which defines construction, mechanical, electrical, optical, environmental, and installation requirements.

Overview of ADSS Cables

All-dielectric self-supporting (ADSS) cables are fiber optic cables designed to support themselves between structures without metal elements, making them suitable for installation along overhead power lines . They are lightweight, small in diameter, and use single-mode fibers, typically operating at 1310 nm or 1550 nm, allowing circuits up to 100 km without repeaters . Fibers are arranged in loose buffer tubes or ribbon configurations with excess slack to minimize strain and maintain low optical loss . ADSS cables can carry hundreds of fibers in a single cable, with some designs supporting up to 864 fibers .

IEEE 1222-2019 Standard

The IEEE 1222-2019 standard specifies the performance, test requirements, procedures, and acceptance criteria for ADSS cables . Key aspects include:

• Mechanical requirements: Tensile strength, sag, wind and ice loading, and resistance to aeolian vibration.
• Optical performance: Maintenance of low attenuation and minimal signal loss under mechanical and environmental stress.
• Environmental considerations: UV resistance, temperature range, moisture protection, and long-term durability.
• Installation and maintenance: Guidelines for proper handling, tensioning, and support to ensure cable integrity.
• Hardware specifications: Requirements for accessories and support hardware used in helically-wrapped or lashed cable systems. This standard ensures that ADSS cables maintain dielectric integrity and optical performance when installed on overhead utility structures, without the need for metallic support elements.

Fiber Standards for ADSS Cables

ADSS cables typically use telecommunications-grade single-mode fibers, such as ITU-T G.652.D or G.657.A1, which provide low attenuation and bend-insensitive performance . For example, Corning's SMF-28® Ultra fiber offers improved macrobend loss performance compared to standard G.652.D fibers, enhancing reliability in aerial installations .

Summary

In practice, IEEE 1222-2019 is the recognized standard for ADSS cables, covering construction, mechanical, optical, environmental, and installation requirements. Compliance with this standard ensures that ADSS cables can safely and reliably operate along overhead power lines while maintaining optical performance over their service life. Fiber selection, such as G.652.D or bend-insensitive G.657 fibers, complements the standard to optimize performance in aerial deployments .