GYTA53 Double Armor Double Jackets Underground Direct Buried Optical Fiber Cable

GYTA53 Double Armor Double Jacket Direct Buried Underground Optical Fiber Cable

Description:

GYTA53 is a armored direct buried fiber optic cable designed for long-term, reliable operation in harsh underground environments. It integrates "double armor" and "double jacket" structures to resist external mechanical damage, corrosion, and environmental stress, making it a good choice for underground optical communication networks (e.g., telecom backbone, power grid communication, and municipal infrastructure).

GYTA53 Optical Fiber Cable Model Explanation:

GYTA53 belongs to the "GY" series of China's national standard for fiber optic cables (GB/T 7424.2-2022), with the code meaning broken down as follows (to clarify its core attributes):

GY: Indicates that this cable is an outdoor communication cable suitable for long-distance and local network communications, adaptable to diverse natural environments and climatic conditions.

T: Indicates that the cable is loose tube filled with a waterproof compound to prevent moisture intrusion, protecting the optical fiber's optical performance and transmission stability.

A: Indicates that the cable's sheath is a bonded aluminum tape-polyethylene sheath. The aluminum tape provides excellent shielding, effectively blocking external electromagnetic interference, while also providing moisture and mechanical protection.

53: Indicates the cable's armor structure, which utilizes corrugated steel tape for enhanced mechanical strength and resistance to external forces, making it suitable for use in harsh environments.

GYTA53 optical fiber cable is widely used in outdoor communication networks requiring strong mechanical protection, moisture resistance, and electromagnetic interference resistance, such as long-distance trunk lines, intercity communication networks, and campus networks with high protection requirements.

This cable's design effectively protects the optical fiber even in humid environments or rain, ensuring long-term stable data transmission.

Detailed Structure of GYTA53 Fiber Optic Cable:

GYTA53 Armored Fiber Cable

GYTA53 structure diagram

Characteristics of GYTA53 Fiber Optic Cable:

GYTA53 cable's structure directly determines its excellent environmental adaptability and mechanical performance, making it stand out among outdoor optical fiber cables:

(1) Superior Environmental Resistance

• Moisture & Water Proof: The loose buffer tube is filled with water-blocking gel, and the steel tape armour forms a "moisture barrier"—suitable for direct burial in wet soil or short-term underwater deployment (e.g., cross-river cables).

• Corrosion Resistance: Galvanized steel armour and UV-resistant PE sheath resist oxidation (from air) and chemical erosion (from soil, acid/alkaline substances).

• Temperature Stability: Operates in a wide temperature range of -40°C to +70°C, adapting to cold northern winters and hot southern summers.

(2) Strong Mechanical Protection

• Tensile Strength: The central steel strength member and outer aluminum & steel tape armour enable the cable to withstand a maximum tensile force of 1000-3000N (depending on fiber count), suitable for long-distance pulling during burial.

• Pressure & Impact Resistance: aluminum tape armour resists lateral pressure (e.g., vehicle rolling on buried cables), while steel tape armour prevents damage from external impacts (e.g., construction machinery).

• Rodent & Termite Proof: Hard steel armour effectively blocks gnawing from rodents (rats, moles, squirrels) and termites—critical for cables laid in rural or forested areas.

(3) High Signal Transmission Performance

• Low Attenuation: Uses single-mode G.652D fiber (attenuation ≤0.36dB/km at 1310nm, ≤0.22dB/km at 1550nm), ensuring stable signal transmission over long distances (up to 100km for single-mode).

• Anti-Interference: Optical signals are immune to electromagnetic interference (EMI) from power lines or industrial equipment, making it ideal for deployment alongside high-voltage cables.

(4) Flexible Installation & Long Service Life

• Versatile Laying Modes: Supports direct burial (most common), duct installation, and aerial deployment (with additional hanging hardware).

• Long Service Life: High-quality materials ensure a service life of 25-30 years, reducing long-term maintenance costs.

Typical Applications of GYTA53 Fiber Optic Cable:

(1) Telecommunication Backbone Networks

• Used in long-distance backbone links between cities or provinces (e.g., connecting 5G base stations, core data centers). Its low attenuation and high tensile strength support large-capacity signal transmission (10G/100G/1Tbps).

• Deployed as metro backbone cables in urban areas, buried under roads or greenbelts to avoid aerial cable clutter.

(2) Broadband Access Networks (FTTH/FTTB)

• In rural or suburban areas, GYTA53 is buried directly to connect central offices (CO) to village-level distribution points, enabling "Fiber-to-the-Home (FTTH)" services. Its rodent-proof feature solves the problem of cable damage in rural farmland.

(3) Power System Communication (Smart Grid)

• Laid alongside high-voltage power lines (OPGW/ADSS complementary) to transmit monitoring data (e.g., current, voltage) and control signals for smart grids. Its EMI resistance ensures signal stability near power equipment.

(4) Industrial Control & Monitoring

• Used in industrial parks, mines, and oil fields: Buried underground to connect sensors, cameras, and control systems. Resists corrosion from industrial chemicals (mines) and oil (oil fields), and withstands mechanical vibration.

(5) Special Environmental Projects

• Cross-river/cross-lake cables: Short-term underwater deployment (e.g., connecting two banks of a river) due to its water-proof structure.

• Military/railway communication: Deployed in military bases or along railways for secure, anti-interference signal transmission; withstands vibration from trains.