36-core aerial optical cable

A 36-core aerial optical cable is an all-dielectric self-supporting (ADSS) fiber optic cable designed for outdoor aerial deployment, providing high tensile strength and environmental resistance without metallic components.

Overview

A 36-core ADSS cable contains 36 optical fibers housed in loose tubes, reinforced with aramid yarns and a dielectric central strength member. It is specifically designed for aerial installation on poles or between buildings, supporting long spans without the need for a messenger wire . These cables are suitable for FTTx networks, industrial connections, and outdoor duct applications .

Construction Features

• Non-metallic FRP or dielectric core: Provides structural support while avoiding electrical conductivity .
• Loose tube design: Tubes are filled with water-blocking gel to protect fibers from moisture and mechanical stress .
• Aramid yarn reinforcement: Ensures high tensile strength for long-span aerial installations .
• Outer sheath: UV-resistant, abrasion-resistant, and capable of withstanding temperature cycling, crush, and impact .
• Double-jacket options: For higher tensile strength and resistance to electric tracking in high-voltage environments .

Fiber Types and Standards

36-core ADSS cables can use various fiber types, including ITU G.652D, G.657A, OM1, OM2, OM3, and OM4, depending on network requirements . They comply with standards such as IEC 60794-4, IEC 60793, and TIA/EIA 598A, ensuring reliable performance in outdoor conditions .

Installation and Testing

• Aerial deployment: Can be installed directly on poles or towers without metallic support.
• Span capability: Typically supports spans from 200 meters up to 1,500 feet, depending on design and environmental conditions .
• Testing: Optical Time Domain Reflectometer (OTDR) is used to verify fiber integrity, locate faults, and measure splice loss .

Advantages

• Self-supporting: No need for additional support cables.
• Durable: Resistant to UV, moisture, temperature fluctuations, and mechanical stress.
• Flexible deployment: Suitable for both aerial and duct applications.
• High capacity: 36 fibers allow multiple high-speed connections in a single cable. 36-core ADSS aerial optical cables are widely used in telecommunication networks, power line communications, and industrial fiber deployments, offering a reliable, low-maintenance solution for outdoor fiber optic infrastructure .