Stranded Loose Tube Aluminum Tape Armored Cable GYTA is a high-performance fiber optic cable designed for outdoor and underground installations where mechanical protection and moisture resistance are essential. Below is a detailed description of the cable structure, features, and applications:

Core Structure:

• Optical Fiber: The cable contains 200μm or 250μm fibers, which can be single-mode or multimode, for high-speed data transmission. These fibers are positioned in a loose tube made from a high-modulus plastic material, providing flexibility and protection from environmental stress.
• Loose Tube: The loose tube holds the optical fibers and is filled with a water-resistant filling compound to prevent moisture ingress, ensuring the protection of fibers in wet or damp conditions. The loose tube design allows the fibers to expand and contract with temperature changes without affecting performance.
• Strength Member: At the core of the cable, a steel wire (sometimes PE-sheathed for high fiber count cables) is placed as a metallic strength member. This provides tensile strength to the cable, ensuring that it can withstand external forces like pulling during installation or stress during use.

Water Protection and Mechanical Armoring:

• Stranded Tube Construction: The loose tubes (along with any fillers) are stranded around the metallic strength member into a compact and circular core, ensuring robust structural integrity.
• Aluminum Polyethylene Laminate (APL): A layer of APL is applied around the cable core. This aluminum layer serves two purposes: it provides additional mechanical protection and acts as a moisture barrier, preventing water ingress and enhancing the cable’s performance in harsh environmental conditions.
• Cable Filling: The cable core is filled with a water-resistant compound, ensuring that no moisture can penetrate, even if the sheath is compromised.

Outer Sheath:

• Polyethylene (PE) Sheath: The cable is finished with a durable PE outer sheath. This sheath provides excellent UV resistance, ensuring the cable can endure prolonged exposure to sunlight without degradation. The PE material also offers protection against abrasion, physical impact, and environmental stress, making the cable suitable for harsh outdoor conditions.

Key Features:

1. High Mechanical Protection: The aluminum tape and steel wire armoring provide robust protection against external mechanical damage and physical impact.
2. Water Resistance: The cable features water-resistant filling compound and APL, offering excellent protection from moisture and ensuring the fibers remain dry and operational.
3. Flexible and Durable: The loose tube design and PE sheath offer flexibility for easy installation while maintaining long-term durability.
4. UV Resistance: The PE outer sheath ensures the cable is protected from UV rays, making it suitable for outdoor installations.
5. Non-Metallic Central Strength Member: The use of a steel wire strength member ensures the cable has the necessary tensile strength for aerial or duct installations.

Applications:

• Outdoor Fiber Networks: Suitable for long-distance communication networks, including backbone and access networks.
• Aerial and Underground Installations: Ideal for use in aerial and underground fiber optic installations, where mechanical protection and water resistance are critical.
• FTTx Networks: Widely used in fiber-to-the-home (FTTH), fiber-to-the-building (FTTB), and other last-mile fiber optic applications.
• Harsh Environments: Designed for environments with high humidity, physical stress, and exposure to UV light.

Technical Specifications:

• Fiber Count: Typically supports 2 to 144 fibers, depending on the application.
• Cable Diameter: Varies from 8 mm to 17 mm depending on fiber count and construction.
• Operating Temperature: -40°C to +70°C.
• Tensile Strength: High tensile strength due to the steel wire and FRP core.
• Weight: Depending on fiber count, typically ranges from 80 to 180 kg/km.

Conclusion:

Stranded Loose Tube Aluminum Tape Armored Cable GYTA is a versatile, durable, and highly protected fiber optic cable suitable for outdoor and underground installations. Its robust construction, water resistance, and mechanical armoring ensure reliable performance in challenging environments, making it an excellent choice for high-performance fiber optic networks.