Kocent Optec Limited (KCO Fiber) is professional of outdoor fiber optic cable manufacturer with factory.
With 10 cable production line and unique technical engineer team, we supply high quality and standard export packing goods to customer.
Our advantage cable type include:
- ADSS cable (single sheath and double sheath)
- GYXTW Aerial Cable (mini cable)
- GYTA / GYTS Direct Burial Cable
- GYTA53 Duct Cable
- GYXTC8S / GYXTC8Y Fig-8 Cable
- GYFTS / GYFTA / GYFTY Duct Cable
- GYTC8S / GYTC8A Fig-8 Aerial Cable
Overview:
Fig-8 Aerial Armored Cable GYTC8S and GYTC8A are both outdoor, self-supporting "Figure-8" fiber optic cables, they are used for aerial pole-to-pole installations.
What is GYTC8S Cable?
- GYTC8S ("S" for Steel): Uses a corrugated steel tape armor (PSP) wrapped around the loose tube core, providing higher crush and mechanical resistance in heavy-load or high-pressure environments.
- The GYTC8S cable is a standardized outdoor, self-supporting Figure-8 fiber optic cable engineered primarily for overhead aerial telecommunication and data networks. It features a modular multi-tube stranded core accompanied by a heavy-duty steel messenger wire, all bound under a single cross-sectional Polyethylene (PE) jacket shaped like an "8". This design eliminates the need for separate lashing wires or external messengers, significantly accelerating installation speeds over long distances.
- Structural Composition
| Cable Component | Material & Design Profile | Operational Purpose |
|---|---|---|
| Central Strength Member | Phosphated steel wire (with optional PE coating) | Prevents axial shrinkage and resists thermal expansions. |
| Optical Element | Gel-filled PBT loose tubes containing 250 µm fibers. | Isolates and cushions fibers from micro-bending stresses. |
| Water Blocking | Core filling compound and specialized water-blocking tape. | Arrests longitudinal moisture migration inside the core. |
| Armor Layer | Corrugated steel-plastic composite tape (PSP). | Provides high crush load resistance and rodent protection. |
| Integrated Messenger | Stranded steel wires (typically 7 strands). | Absorbs the structural tensile loads across high-wind poles. |
| Outer Jacket | High-Density Polyethylene (HDPE) or standard PE. | Delivers UV resistance and weatherproofing. |
What is GYTC8A Cable?
- GYTC8A ("A" for Aluminum): Uses an aluminum-polyethylene bonded sheath/tape armor, offering lighter weight and good moisture/corrosion resistance with slightly different mechanical properties.
- The GYTC8A cable is an outdoor, self-supporting Figure-8 fiber optic cable designed for aerial installations, utilizing an aluminum-polyethylene laminated tape (APL) shield rather than steel tape. Like other Figure-8 designs, its defining feature is the integrated stranded steel messenger wire bound into a single Polyethylene (PE) outer jacket, allowing it to be strung directly between poles without separate messenger lines or field lashing.
- Structural Composition
| Cable Component | Material & Design Profile | Operational Purpose |
|---|---|---|
| Central Strength Member | Solid metallic steel wire (coated with PE when core counts are high). | Resists axial shrinkage and thermal elongation. |
| Loose Tubes | Gel-filled Polybutylene Terephthalate (PBT) tubes housing 250 µm fibers. | Protects optical fibers from moisture and micro-bending. |
| Waterproof Barrier | Hydrophobic core compound alongside specialized water-blocking tape. | Prevents longitudinal water migration throughout the cable. |
| Armor / Shielding | Smooth or corrugated aluminum-polyethylene laminate (APL) tape. | Provides excellent moisture barrier and electro-magnetic shielding. |
| Integrated Messenger | Stranded steel wires running parallel to the main optical core. | Carries the installation span tension over high clearances. |
| Outer Jacket | High-Density Polyethylene (HDPE) forming a cross-sectional "8". | Delivers robust UV stabilization and structural weather protection. |
Key Comparisons GYTC8S vs. GYTC8A Cable:
- The primary differentiator is the armor material. While the GYTC8S utilizes corrugated steel tape (PSP) for premium crush and rodent prevention, the GYTC8A relies on aluminum tape (APL).
- GYTC8A offers superior chemical/moisture protection but lower mechanical crush boundaries compared to GYTC8S.
| Feature | GYTC8S | GYTC8A |
|---|---|---|
| Armor Type | Corrugated steel tape (PSP) | Aluminum-polyethylene tape |
| Structure | Figure-8 with steel messenger wire | Figure-8 with metal reinforcing messenger wire |
| Crush & Impact Resistance | Higher rigidity and crush protection | Moderate protection, lighter flexibility |
| Weight | Generally heavier due to steel armor | Lighter due to aluminum construction |
| Application | Long-distance aerial runs requiring high crush/rodent resistance | Standard aerial installations where weight or specific metal compatibility is preferred |
| Selection Attribute | GYTC8A (Aluminum Shield) | GYTC8S (Steel Armor) |
|---|---|---|
| Primary Shielding | APL Tape: Aluminum layer provides a tight moisture boundary. | PSP Tape: Corrugated steel tape provides mechanical armor. |
| Crush & Impact Resistance | Moderate: Better suited for standard wind/ice conditions. | High: Superior resistance to deep crushing forces. |