Need ADSS cable for an aerial fiber project?
Get project-based quotation support, PE/AT sheath options, and span design support from MapleArashi.
Key specs: Project-defined fiber count, PE or AT sheath, all-dielectric self-supporting design, project-based span support.
Everything you need to know about ADSS (All-Dielectric Self-Supporting) fiber optic cable: structure, sheath types, span design, and selection for aerial telecom and utility projects.
Direct Answer
What is ADSS fiber optic cable? ADSS (All-Dielectric Self-Supporting) is a fully dielectric aerial fiber optic cable that supports itself between poles or towers without a messenger wire. It uses aramid yarn strength members for tensile capacity and is available with PE (standard aerial) or AT (anti-tracking for power line) sheaths. ADSS is widely deployed by telecom operators, utilities, and contractors for long-span aerial fiber routes.
Quick Decision Table: PE vs AT Sheath
| Factor | PE Sheath | AT Sheath | Best Pick |
|---|---|---|---|
| Electric Field | Standard (According to the electrical assessment) | High (When required by the electrical assessment) | AT for power corridors |
| Cost | Lower | Higher (track-resistant materials) | PE for standard routes |
| Application | Telecom poles, rural broadband | Power transmission towers, EHV lines | Match to voltage class |
| Lifespan | Subject to approved design and environment | Subject to approved design and environment | Comparable |
Key Takeaways
Citable Specification Notes
Before final cable selection or quotation, use the aerial fiber optic cable engineering checklist to confirm span, sag, wind load, ice load, pole loading, tensile limits, and installation conditions.
ADSS stands for All-Dielectric Self-Supporting. It is a type of fiber optic cable designed for aerial installation where the cable supports its own weight between poles or towers without requiring a separate messenger wire or lashed support.
The cable's all-dielectric (non-metallic) construction means it contains no metal components — no steel armor, no metallic strength members. This makes ADSS a candidate for utility pole and transmission tower routes where electrical isolation is critical, subject to route engineering, hardware, sheath, and electric-field review.
MapleArashi is a China-based ADSS fiber optic cable manufacturer with 20+ years of export trade experience, offering PE and AT sheath options for telecom and utility projects worldwide.
A typical ADSS cable consists of the following layers:
| Layer | Component | Material / Function |
|---|---|---|
| 1 | Optical Fiber | G.652D / G.657A1 / G.657A2 single-mode fibers for signal transmission |
| 2 | PBT Loose Tube | Polybutylene terephthalate tube protecting fibers with filling compound |
| 3 | Water Blocking | Water-blocking compound, yarn, or tape for longitudinal moisture protection |
| 4 | Central Strength Member | FRP (Fiber Reinforced Plastic) or other non-metallic central member |
| 5 | Cable Core | SZ-stranded loose tube cable core for fiber organization |
| 6 | Aramid Yarn Strength Layer | Aramid yarn provides tensile strength for self-supporting aerial spans |
| 7 | Outer Sheath | PE (standard) or AT (Anti-Tracking) for environmental and electrical protection |
ADSS cable structure — layer by layer. Note: no metallic components are used in any layer.
| Feature | ADSS | Figure-8 (GYTC8S) | Lashed Cable |
|---|---|---|---|
| Support method | Self-supporting (aramid yarn) | Steel messenger wire | External strand/lashing wire |
| Metallic content | None (all-dielectric) | Steel messenger | Depends on cable type |
| Power line use | ✅ Yes (AT sheath for high E-field) | ⚠️ Limited | ❌ No |
| Span length | Project-designed; confirm in approved datasheet | Project-designed; confirm in approved datasheet | Project-designed; confirm in approved datasheet |
| Installation complexity | Moderate (requires sag calculation) | Simple (pull messenger) | High (lash wires) |
| Cost per meter | Medium-High | Medium | Low-Medium |
For more detail, read our ADSS vs Figure-8 comparison guide.
For electric-field exposure, jacket material, and application limits, see the detailed ADSS PE sheath versus AT sheath guide.
The sheath type is one of the most important decisions when selecting ADSS cable for a project. The wrong sheath selection can lead to premature cable failure in power environments.
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