The aramid yarn inside an ADSS cable carries the entire mechanical load. Increase the fiber count, and the cable gets heavier — requiring more aramid yarn. But the relationship isn’t linear. This guide explains the relationship and how to verify yarn specifications.
How Fiber Count Increases Cable Weight
Each additional 12-fiber loose tube adds 0.3-0.5 kg/km. A 144-core cable weighs 40-60% more than a 24-core cable — all supported by aramid yarn.
For foundational knowledge, see aramid yarn selection guide.
Yarn Density by Fiber Count (500m Span)
| Fiber Count | Weight (kg/km) | Yarn Denier |
|---|---|---|
| 12-core | 85-100 | 2,500-4,000 |
| 24-core | 95-120 | 3,500-5,500 |
| 48-core | 120-170 | 6,000-10,000 |
| 96-core | 180-250 | 12,000-18,000 |
| 144-core | 240-340 | 18,000-28,000 |
For procurement verification, see quotation comparison framework.
Key Takeaways
- Higher fiber count requires more yarn — nonlinearly. 144-core needs 5-7x the yarn of 12-core.
- Aramid yarn is 20-40% of cable cost. Under-specification saves manufacturer cost at buyer’s risk.
- Verify denier, strand count, lay length, and brand on every TDS.
Need Yarn Verification?
Send us your ADSS TDS for aramid yarn specification review.
