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GYXTW
Cytech
Product Description
The GYXTW type fiber optical cable is a steel-polyethylene bonded sheath with metal strengthening members,center tube filling type,and parallel steel wires. It is an outdoor optical cable for communication.
•Full section water blocking structure,double-coated steel tape longitudinal package,ensuring good water and moisture resistance;
•Loose sleeve filled with special ointment for critical fiber protection;
•Two parallel round steel wires resist tension and side pressure;
•Optical fiber cable with small outside diameter,light weight,excellent bending performance;
•The loose tube is located in the physical center of the cable,convenient for construction and operation;
•Polyethylene sheath makes the cable have good UV resistance;
Product life more than 30 years.
Applications:Long-distance communication,inter-office communication
Laying method:Overhead,pipeline,buried directly
Working temperature:-40℃~+70℃；
Bend Radius: Static 10 times the cable diameter,
Dynamic 20 times the cable diameter.
IEC 60794-1"Optical fibre cables Part 1-21:Generic specification-Basic optical cable test procedures"
YD/T 769"Central gel-filled loose tube optical fiber cables for outdoor application for telecommunication"
Fiber count | Cable Diameter(mm) | Cable Weight(KG/KM) | Max.tensile strength(N) | Max.Crush resistance(N/100m) | ||
RTS | MAT | Short Term | Long Term | |||
2-8 | 7.7 | 58 | ≥1500 | ≥600 | ≥1000 | ≥300 |
10-12 | 7.9 | 60 | ||||
14-24 | 8.5 | 68 | ||||
Packaging Details: Packed on drums;
Drums length: 1KM,2KM, 3KM or 4KM, as per buyers’ request
Delivery detail: 15 days
Application
The GYXTW fiber optic cable is designed for versatile outdoor and harsh-environment deployments where durability and reliability are critical. Key use cases include:
Its integrated steel wire strength member provides robust tensile support for pole-to-pole or pole-to-building hangs, resisting wind loading and ice accumulation.
The corrugated steel tape armor (CST) offers essential mechanical protection against rocks, soil pressure, and backhoe damage, while water-blocking materials prevent moisture ingress.
Suitable for pulling through underground ducts/conduits, where the armor protects against crushing forces and rodent bites.
Resistant to oils, chemicals, and temperature fluctuations (-40°C to +70°C), making it suitable for factory floors, power plants, and transportation networks.
Ideal for inter-building links, campus backbones, FTTx distribution points, and telecom access networks requiring medium-distance runs.
Installation and maintenance
Inspect the cable for any physical damage before installation.
Check the route (aerial, underground, or duct) and ensure it meets the cable’s bend radius (typically ≥ 20× cable diameter).
Use proper tools (cable pullers, tension monitors, rollers, etc.) to avoid excessive tension (max tensile load ~1000N for GYXTW).
Use supporting steel wire or messenger wire to hang the cable.
Secure with cable ties or hooks at regular intervals (~50–100 cm).
Avoid sharp bends near poles or supports.
For direct burial, dig a trench (≥ 0.8–1.2 m deep) and lay the cable on a sand cushion.
Use protective conduits in rocky or high-risk areas.
For duct installation, use a lubricant to reduce friction while pulling.
Use fire-retardant sleeves if passing through walls.
Secure with cable clips to prevent stress.
Check for physical damage (cuts, kinks, or corrosion on the steel wire).
Inspect joint closures and splices for water ingress.
Monitor optical performance (attenuation, OTDR traces).
Ensure waterproofing at splice points (use moisture-resistant closures).
For aerial cables, check for wind-induced abrasion or animal damage.
In underground installations, inspect for rodent attacks or soil erosion.
Clean connectors and adapters with alcohol wipes before splicing.
Store excess cable in loose coils (avoid tight bends).
If damaged, cut and splice the fiber using a fusion splicer.
Replace the armored sheath if corrosion is detected.
Advantages
Corrugated Steel Tape Armor: Provides excellent resistance to crushing, rodent bites, and physical damage.
Tight Buffer Coating: Protects individual fibers from stress and bending, enhancing durability.
Waterproof Design: Features a PE (Polyethylene) outer sheath and moisture-resistant materials (such as water-blocking tape or gel) to prevent water penetration.
Suitable for Harsh Environments: Ideal for outdoor installations, underground ducts, and aerial deployments.
Lightweight & Flexible: Easier to handle and install compared to heavy armored cables.
Tight Buffer Structure: Allows for direct termination without additional pigtails, saving time and cost.
Low Signal Loss: Ensures stable transmission over long distances.
EMI Resistance: The steel tape armor shields against electromagnetic interference (EMI), making it suitable for industrial areas.
Outdoor Use: Resistant to UV radiation, temperature fluctuations (-40°C to +70°C), and harsh weather.
Indoor/Outdoor Transition: Can be used in both environments without needing extra junction boxes.
Long Lifespan: Reduces maintenance and replacement costs.
Lower Installation Cost: Easier to deploy than bulkier armored cables.
