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GYFXTZS
CHANGRONG TECH
Fibers counts: 2-12 core
Standard Drum Length: 2km, 3km, 4km
The 2-12core Fibers (Single-Mode or Multi-Mode) are positioned in a central tube made of high-modulus plastic and filled with tube gel. The tube is reinforced with aramid yarns and water blocking yarns. Then the Corruagted Steel Tape (CST ) is armored around the cable core. Finally a LSZH jacket is extruded.

| Model | GYFXTZS | |||||||
| Counts | 2-12 | |||||||
| Max.fiber counts per tube | 12 | |||||||
| Cable Diameter(mm) | 7.5 | |||||||
| Weight(Kg/km) | 75 | |||||||
| Fiber Type | G652D G655 G657 50/125 62.5/125 | |||||||
| Tube | Central Uni-tube | |||||||
| Strength Member | Aramid Yarn | |||||||
| Armor Layer | Corrugated Steel Tape | |||||||
| Outer Sheath | LSZH jacket | |||||||
| Tensile Strength(N) | Long/Short Term:600/1500 | |||||||
| Crush Resistance(N/100mm) | Long/Short Term:300/1000 | |||||||
| Bending Radius(mm) | Static/Dynamic:12.5D/25D | |||||||
| Temperature(℃) | Storage /Operation:-40℃~70℃ | |||||||
GYFXTZS Unitube Armored Cable
GYFXTZS Cable Cross Section
Drum Length: 2km, 3km, 4km (other length available on request)
Drum Material options: Fumigated Wooden Drum, Plywood Drum
Drum Marking: Customized as customer's requirements

GYFXTZS flame-retardant unitube fiber optic cable combines aramid yarn reinforcement with Corrugated Steel Tape (CST) armor layers and LSZH Jacket—for exceptional tensile strength and fire protection. This hybrid design delivers up to 1500N tensile resistance and crush protection exceeding 1000N, certified for hazardous environments like oil refineries or military sites. It features a unibuffer tube filled with thixotropic gel to prevent moisture ingress and fiber micro-bending, while the Low Smoke Zero Halogen (LSZH) sheath reduces toxic fumes during fires. Compliant with IEC 60331 for fire integrity at 750°C for 90 minutes, this cable ensures reliable operation in EMI-prone areas, making it a top choice for critical infrastructure.
Steel Armor: Corrugated Steel Tape for moisture-proof and rodent protection.
Aramid Yarn Reinforcement: High-tensile Kevlar® fibers provide superior pull strength and flexibility, reducing installation strain and enhancing durability.
Flame Retardancy: Exceeds IEC 60331 standards, maintaining circuit integrity during prolonged fires for safe use in high-risk industrial zones.
Environmental Sealing: Gel-filled uni-tube design blocks water and contaminants, with LSZH sheath emitting minimal smoke and no halogens per IEC 61034.
Fiber Options: Supports G652D, bend-insensitive G.657 fibers for tight bends, with core counts from 2-12 for versatile network scaling.
Laying Methods: Duct or Non self-supporting Aerial laying
· Petrochemical and Energy Facilities: Installed in refineries, power plants, and offshore platforms where explosion risks demand robust, fireproof cabling.
· Military and Defense Installations: Provides secure communication in bases or field operations, resisting physical attacks and harsh conditions.
· Utility and Grid Networks: Used in high-voltage transmission lines and substations for reliable data monitoring and control systems.
· Coastal and Subaqueous Deployments: Suitable for conduits in marine environments, with corrosion-resistant materials ensuring longevity in saltwater.
A: For a 12 core version, the weight is approximately 75 kg/km, balancing strength with manageable handling during installation.
A: Installation can proceed at temperatures as low as -20°C without sheath brittleness, ensuring flexibility in cold climates.
A: With gel filling and water-blocking tapes, it maintains low attenuation (≤0.1 dB/km) in 95% humidity, per IEC 60794-1-2.
A: No. Aramid yarn is non-metallic fiber with zero corrosion risk, no rust or fatigue failure under long-term outdoor exposure, unlike steel wire tensile members.

