GYFXTY Non-metallic Uni-tube with 2 parallel FRP Aerial/Duct Fiber Optic Cable

GYFXTY Non-metallic Uni-tube Aerial/Duct Fiber Optic Round Drop Cable with Two Parallel FRP 

Description:

GYFXTY is a non-metallic central tube type outdoor optical fiber cable widely used in communication networks. It is designed to adapt to complex outdoor environments (such as direct burial, aerial, or duct installation) while avoiding the use of metal components, making it suitable for scenarios with strict requirements for electromagnetic interference (EMI) resistance and lightning protection. It is a common choice for access networks, rural communications, and short-distance backbone transmission.

Model Definition:

GYFXTY belongs to the "GY" series of outdoor optical fiber cables (the national standard prefix for outdoor communication optical cables in China, equivalent to international outdoor cable classifications). The suffix "FXTY" defines its structural features:

• F: Represents non-metallic reinforcement FRP (Glass Fiber Reinforced Plastic, avoiding electromagnetic interference and corrosion risks).

• X: Indicates a central tube structure (the optical fiber is placed in a single central loose tube).

• T: Refers to the loose tube filled with tube gel which protects well the fiber from external moisture and stress.

• Y: Denotes a polyethylene (PE) outer sheath (provides secondary protection against outdoor environmental damage).
  

GYFXTY Fiber Optic Cable is a lightweight, non-metallic, and cost-effective outdoor cable, typically used for short to medium-distance transmission and is compatible with both single-mode (SM) and multi-mode (MM) optical fibers.

Structural Composition:

The 2-24 fibers are positioned in a central loose tube and filled with tube gel. Then 2 non-metallic parallel FRP applied around the tube as strength member. The cable is protected by a layer of polyethylene (PE) sheath, which provides good mechanical protection and environmental resistance. This type of cable is suitable for various laying methods, such as overhead, buried, and duct laying.

GYFXTY Fiber Optic Cable

GYFXTY Structure Diagram

Key Characteristics of GYFXTY Optical Fiber Cable:

GYFXTY cable's design focuses on outdoor adaptability, non-metallic safety, and cost efficiency, with the following prominent features:

(1) Non-Metallic Advantage

• No metal wires or tapes, so it is immune to electromagnetic interference (EMI) and radio frequency interference (RFI)—suitable for areas near power lines, substations, or industrial equipment.

• Avoids corrosion caused by metal oxidation (critical for humid or coastal areas) and eliminates the risk of lightning-induced damage (a major issue for metallic cables in outdoor environments).

(2) Excellent Environmental Adaptability

• UV resistance: The outer PE sheath is modified with UV stabilizers, ensuring long-term use (≥20 years) in direct sunlight without aging or cracking.

• Waterproof and moisture-proof: The central tube is filled with water-blocking gel, and the sheath layer has low water vapor permeability—prevents fiber attenuation caused by moisture.

• Wide temperature range: Operates stably in temperatures from -40°C to +70°C, adapting to cold northern regions and hot southern climates.

(3) Mechanical Reliability

• Tensile strength: Supported by aramid yarns or FRP, it can withstand short-term tensile forces of 600–1000N (sufficient for overhead or buried installation).

• Bending performance: The central tube structure and flexible sheaths allow a minimum bending radius of 10× cable outer diameter (static) and 20× cable outer diameter (dynamic), facilitating installation in narrow spaces.

(4) Lightweight and Easy Installation

• Compared to metallic central tube cables (e.g., GYXTW), GYFXTY is 20–30% lighter, reducing labor and equipment costs for overhead or aerial installation.

• No need for grounding (unlike metallic cables), simplifying on-site construction and shortening project cycles.

(5) Cost-Effectiveness

• Simple structure (fewer layers than armored cables) and non-metallic materials lower production costs, making it ideal for large-scale deployment in access networks (e.g., "last-mile" connections to villages or communities).

Applications:

(1) Telecom Access Networks

• Deployed as FTTH (Fiber-to-the-Home) distribution cables—connecting central offices (CO) to residential buildings or rural access points.

• Used in FTTB (Fiber-to-the-Building) networks to transmit signals from street cabinets to building basements.

(2) Rural and Suburban Communications

• Ideal for rural "broadband coverage" projects: Its non-metallic design avoids lightning damage (common in rural open areas), and its low cost fits budget constraints for large-area deployment.

(3) Overhead and Aerial Installation

• Widely used as aerial cables (hung on utility poles) in areas where buried installation is difficult (e.g., mountainous regions, riversides). Its lightweight and tensile strength ensure stable operation under wind loads.

(4) Industrial and Special Environments

• Applied in industrial parks or power plant auxiliary networks: Resists EMI from industrial equipment and power lines, ensuring reliable signal transmission for monitoring or control systems.

• Used in coastal areas or humid regions: Non-metallic materials prevent corrosion from salt spray or moisture, extending cable service life.

(5) Temporary or Emergency Communications

• Used in temporary networks (e.g., construction sites, disaster relief) due to its easy installation and low maintenance requirements.

FAQs

Q1: What is the difference between GYFXTY (2 parallel FRP) and conventional aramid yarn GYFXTY?

• Parallel FRP version: Rigid tensile resistance, better anti-side pressure, stable cable round shape, easier stripping during construction;

• Aramid yarn version: More flexible, lighter weight, better bending performance.

Two parallel FRP design is preferred for overhead routes with frequent wind vibration and duct installation requiring compression resistance.

Q2: What fiber types can be equipped in this uni-tube GYFXTY?

Supports common single-mode fibers: G.652D, G.657A1, G.657A2. 

Fiber count range: 2 ~ 24 cores. Multi-mode OM3/OM4 is available upon special request.

Q3: What tensile load can the two parallel FRP GYFXTY withstand?

Typical design: Long-term allowable tensile load: 600 N, Short-term maximum tensile load: 2000 N 

Please confirm exact mechanical indicators according to specific fiber count and customer specification before aerial construction.

Summary

GYFXTY fiber optic cable balances performance, safety, and cost, making it a core product in outdoor access networks. Its non-metallic structure, environmental adaptability, and lightweight design address key pain points of outdoor deployment (lightning, corrosion, EMI), while its cost-effectiveness supports large-scale infrastructure projects. For scenarios requiring long-distance transmission (e.g., backbone networks) or extreme protection (e.g., direct burial in rocky soil), armored cables (e.g., GYTA53) may be more suitable—but GYFXTY remains the first choice for most outdoor access and short-haul communication needs.