Direct Buried Or ConduitFiber Optic cable - GYFTA53

CHARACTERISTICS

GYFTA53 Outdoor Direct-Buried Optical Cable - Non-metallic Reinforcement, Water-Blocking Filler, Aluminum-Plastic Composite Tape Moisture-Proof, Steel Tape Armored Double Sheath
I. Structural Characteristics

1. Central loose tube stranded structure, optical fiber placed in PBT loose tube, filled with fiber grease to isolate moisture;

2. Cable core gaps are fully filled with water-blocking grease, providing longitudinal water blocking;

3. Central load-bearing component is an FRP non-metallic reinforcing core, without a steel core, and the entire cable contains no conductive metal;

4. Cable core is longitudinally wrapped with aluminum-plastic composite tape (A layer) to achieve radial moisture protection and moisture isolation;

5. Inner polyethylene sheath → corrugated steel tape longitudinal armor (compression-resistant and rodent-resistant) → outer black HDPE sheath, three-layer protection (aluminum-plastic layer + steel tape armor + outer sheath).

II. Optical Transmission Characteristics

1. Mainstream uses G.652D single-mode fiber, with low attenuation and low dispersion, suitable for Gigabit/10 Gigabit, PTN, OTN, security monitoring, government and enterprise dedicated lines, and 5G transport;

2. Completely free of metallic conductors, zero electromagnetic induction, resistant to strong electromagnetic interference, unaffected by power frequency and lightning electromagnetic pulses when laid near high-voltage lines, substations, and electrified railways;

3. No electromagnetic radiation, will not interfere with surrounding weak current and power equipment;

4. Fiber core count coverage of 4/6/12/24/48/72/96/144 cores, meeting the needs of high-capacity transmission in multiple scenarios for backbone and branch lines.

III. Electrical Safety Characteristics (Core Advantages)

1. All-non-metallic structure, containing no steel wire, steel strand, or metallic conductive core, insulated and non-conductive;

2. No induced voltage in high-voltage environments, will not introduce high-voltage potential during lightning strikes, ensuring high personal safety during construction and maintenance;

3. No metallic loops, no power frequency circulating current, no corrosion or electrochemical reactions, suitable for direct burial in areas with strong electromagnetic fields.

IV. Mechanical Properties

1. Corrugated steel tape armor (53 armor): Extremely strong resistance to pressure, lateral pressure, and impact; withstands crushing from gravel and mechanical excavation forces during direct burial.

2. Steel tape is rodent-proof and termite-proof, significantly reducing the probability of damage to buried optical cables.

3. The steel tape armor layer has a certain resistance to trampling and heavy object crushing, superior to unarmored GYFTY and GYFTA optical cables.

V. Environmental and Weather Protection Characteristics

1. Dual moisture-proof system: Loose tube fiber grease + cable core water-blocking grease achieves complete longitudinal water blocking; APL aluminum-plastic composite tape isolates groundwater and prevents radial moisture penetration, providing excellent waterproof performance.

2. Double-layer PE outer sheath is UV-resistant and aging-resistant, protecting underground buried cables from direct sunlight, while also resisting soil acid and alkali corrosion and groundwater corrosion.

3. Operating temperature range: Laying temperature -10℃~+50℃, long-term operation temperature -40℃~+70℃; suitable for direct burial in frozen soil and high-temperature areas in both northern and southern regions.