Deploy robust fiber networks underground with our GYTA53 Direct Buried Fiber Optic Cable. Featuring a Double Jacket (PE) and Double Armor (Aluminum + Steel) construction, this cable offers superior crush resistance and rodent protection, eliminating the need for protective conduits.

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144 Cores GYTA53 fiber optic cable

144 Cores GYTA53 Fiber Optic Cable Direct Buried

72 Cores GYTA53 fiber optic cable

72 Cores GYTA53 Fiber Optic Cable Direct Buried

12 Cores GYTA53 fiber optic cable

48 Cores GYTA53 Fiber Optic Cable Direct Buried

24 Cores GYTA53 fiber optic cable

24 Cores GYTA53 Fiber Optic Cable Direct Buried

12 Cores GYTA53 fiber optic cable

12 Cores GYTA53 Fiber Optic Cable Direct Buried

Overview

The GYTA53 Fiber Optic Cable is the industry standard for Direct Buried applications where maximum protection is required. Unlike standard outdoor cables that require a conduit or duct, the GYTA53 is engineered with a rugged Double Jacket, Double Armor structure that allows it to be buried directly into the earth, withstanding heavy soil loads, rock compression, and severe rodent attacks.

Designed for harsh outdoor environments, this cable integrates both an Aluminum Polyethylene Laminate (APL) inner sheath and a Corrugated Steel Tape (CST) outer armor to ensure zero water penetration and exceptional mechanical strength.

Cable Construction (GYTA53 Structure)

Understanding the specific "GYTA53" code is vital for selecting the right cable for your network backbone:

  • Central Strength Member: A high-tensile steel wire sits at the core to prevent the cable from buckling or stretching during installation.
  • Loose Tubes: High-modulus PBT tubes house the optical fibers (12 to 288 cores). These tubes are filled with a water-resistant thixotropic jelly to cushion the fibers.
  • Inner Armor (APL): An Aluminum Polyethylene Laminate tape is longitudinally applied as a moisture barrier over the cable core. This forms the "Inner Jacket."
  • Outer Armor (CST): A layer of Corrugated Steel Tape is applied over the inner jacket. This provides the primary defense against crushing forces and rodents.
  • Outer Sheath (PE): A high-density Polyethylene (PE) black jacket protects the entire assembly from UV radiation and abrasion.

Why Choose GYTA53 for Direct Burial?

Direct burial saves significant infrastructure costs by eliminating the need for duct systems. However, the cable faces three main threats: moisture, physical pressure, and rodents. The GYTA53 addresses all three:

  • Rodent Proof: Rats and gophers often chew through standard cables. The steel tape armor creates an impenetrable metal barrier.
  • Double Moisture Barrier: The combination of the Aluminum inner tape (APL) and the water-blocking gel filling creates a sealed environment, ensuring long-term attenuation stability even in water-logged soil.
  • Crush Resistance: The "53" structure (Steel Tape + PE Sheath) offers superior crush resistance (>1000N/100mm), preventing fiber micro-bending caused by rocks or shifting soil.

Technical Specifications

Cable Type GYTA53 (Stranded Loose Tube)
Fiber Count 12 - 288 Fibers
Armor Type Double Armor (Aluminum Tape + Steel Tape)
Jacket Material Double Jacket (PE Inner + PE Outer)
Operating Temperature -40°C to +70°C
Application Direct Burial, Harsh Environment Ducts

FAQ

1. What is the difference between GYTS and GYTA53?

GYTS has a single jacket and single steel tape armor. It is suitable for ducts or aerial lashed use. GYTA53 has a double jacket and double armor (Aluminum inner + Steel outer), making it heavier and more robust, specifically designed for direct burial where extra protection is needed.

2. Can I use GYTA53 inside a duct?

Yes, you can. However, it is heavier and stiffer than standard duct cables (like GYTS or GYTA). It is typically used in ducts only when the duct is prone to flooding or severe rodent infestation.

3. Is this cable waterproof?

Yes. It utilizes a "dry core" design with water-blocking yarn or a jelly-filled compound in the tubes, plus the APL aluminum barrier, making it fully submersible and resistant to longitudinal water penetration.

4. Does it require grounding?

Yes. Because GYTA53 contains metallic elements (Steel central member, Aluminum tape, Steel tape), the metallic armor must be properly grounded at splice points and termination boxes to prevent lightning damage and voltage surges.