Double Jacket ADSS (All-Dielectric Self-Supporting) Cable is a robust fiber optic cable designed for outdoor aerial installations, particularly in environments with high mechanical stress or electrical interference. Its all-dielectric construction eliminates the need for grounding or conductive elements, making it ideal for installation alongside power lines. Below is a detailed description of its key features and applications:

Core Structure:

• Optical Fibers: The cable accommodates single-mode or multi-mode fibers, providing high-speed, low-loss data transmission. The fibers are housed in loose tubes made of high-modulus plastic, ensuring flexibility and protection against external stress.
• Water-Blocking Gel: The loose tubes are filled with a water-blocking gel to prevent moisture ingress and ensure long-term fiber stability.

Strengthening Elements:

• Central Strength Member (FRP or Steel): A central strength member, typically made of Fiber Reinforced Plastic (FRP) or steel, provides core stability and tensile strength.
• Aramid Yarn Reinforcement: Strands of aramid yarn are applied around the loose tubes, offering superior tensile strength and resistance to mechanical stress, including wind and ice loading.

Double Jacket Design:

• Inner Jacket: The inner jacket is made of medium-density polyethylene (MDPE) or high-density polyethylene (HDPE), providing an additional layer of mechanical protection for the optical fibers and aramid yarn.
• Outer Jacket: The outer jacket, also made of HDPE, offers high resistance to UV radiation, abrasion, and environmental factors, ensuring reliable performance in harsh outdoor conditions.
• Double Jacket Advantage: This dual-layer protection enhances the cable’s durability, making it suitable for long spans and regions with extreme climates.

Self-Supporting Design:

• All-Dielectric Construction: The cable is entirely dielectric, eliminating the risk of electrical conductivity. This feature makes it ideal for installation near high-voltage power lines.
• Lightweight and Flexible: Its lightweight construction and flexibility reduce the load on supporting structures and simplify installation.

Applications:

• Aerial Installations: Perfect for use in aerial fiber networks, particularly in areas with long spans between poles.
• Power Line Corridor Deployment: Designed for safe deployment alongside high-voltage power lines without grounding.
• Rural and Urban Networks: Suitable for high-speed communication networks in both rural and urban areas.

Advantages:

• High Mechanical Strength: The aramid yarn and double jacket design ensure excellent resistance to tensile stress, wind, ice, and other environmental factors.
• UV and Weather Resistance: The outer jacket protects against UV radiation and harsh weather conditions, extending the cable’s lifespan.
• Moisture Resistance: The water-blocking gel in the loose tubes and the sealed structure prevent water ingress, ensuring consistent performance.
• No Grounding Required: The all-dielectric construction makes it safe and cost-effective for installation near power lines.

Technical Specifications:

• Fiber Count: Available in configurations ranging from 2 to 288 fibers.
• Span Length: Supports long spans, typically up to 1,200 meters, depending on fiber count and environmental conditions.
• Operating Temperature: Designed to perform reliably in temperatures ranging from -40°C to +70°C.

Conclusion:

Double Jacket ADSS Cable is a versatile and durable solution for aerial fiber optic networks. Its all-dielectric, self-supporting design, combined with robust double-jacket protection, ensures reliable performance in challenging environments. Ideal for power line corridor deployment and long-span installations, it offers exceptional durability, low maintenance, and long-term stability for modern communication networks.