Home / Product / GYTA53 Direct Buried Fiber Optic Cable
Built for the toughest environments, the GYTA53 features a double-jacket and double-armor design. It provides maximum protection against mechanical crushing, rodent attacks, and moisture, making it the industry standard for direct burial installations.
Specifically designed for direct burial in soil where heavy pressure, moisture, or rodent damage is expected. Widely used in cross-country backbone networks.
-IEC 60794-1, ISO 9001, RoHS.
| Component | Material/Properties | Details | ||||
|---|---|---|---|---|---|---|
| Optical Fiber | High-purity Silica Glass | Single-mode (e.g., G.652D) or Multi-mode. Core count typically ranges from 2 to 144 cores (or higher). |
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| Central Strength Member | Phosphatized Steel Wire (or FRP) | Located at the center of the cable core. Provides high tensile strength. (PE cushion added for larger core counts). | ||||
| Loose Tube | PBT (Polybutylene Terephthalate) | Stranded around the central strength member. Tubes are filled with water-blocking thixotropic jelly. | ||||
| Inner Moisture Barrier | APL (Aluminum-Polyethylene Laminate) | Longitudinally applied over the cable core to provide an excellent moisture and water barrier. | ||||
| Inner Jacket | MDPE (Medium-Density Polyethylene) | Extruded over the APL layer to provide structural stability and the first layer of mechanical protection. | ||||
| Outer Armor | PSP (Corrugated Steel Tape) | Longitudinally applied over the inner jacket. Provides maximum crush resistance, impact resistance, and is highly effective at preventing rodent damage. | ||||
| Outer Jacket | HDPE or MDPE | Black, UV-resistant, and tough outer layer protecting against extreme outdoor and subterranean environments. |
| Fiber Count | O.D. (mm) | Weight (kg/km) | Jacket (Inner/Outer) mm | Bending Radius (mm) | Tensile Strength (N) | Crush Resistance (N/100mm) |
|---|---|---|---|---|---|---|
| 2 – 12 | 13.5 | 180 | 1.0 / 2.0 | 135 (Static) / 270 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 14 – 24 | 14.0 | 190 | 1.0 / 2.0 | 140 (Static) / 280 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 26 – 36 | 14.5 | 210 | 1.0 / 2.0 | 145 (Static) / 290 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 48 | 15.0 | 225 | 1.0 / 2.0 | 150 (Static) / 300 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 72 | 16.5 | 260 | 1.0 / 2.0 | 165 (Static) / 330 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 96 | 18.5 | 320 | 1.0 / 2.0 | 185 (Static) / 370 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
| 144 | 21.0 | 400 | 1.0 / 2.0 | 210 (Static) / 420 (Dynamic) | 3000 / 1000 | 3000 / 1000 |
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