Gel-free loose tube stranded cable with steel tape armored PE sheath (GYFS).
Manufacturer: Nanjing Wasin Fujikura
Cable Construction
Loose tubes surround a central FRP member, with water-blocking yarn and tape, steel armor and a polyethylene sheath.
Operating Conditions
- Operating temperature: -40 °C to +70 °C
- Bending radius: static 10 × D; dynamic 20 × D (D is cable diameter)
Technical Specifications
Values and units are based on information published by the manufacturer.
| Fiber count | Nominal diameter （mm） |
Nominal weight (kg/km) |
Max fiber per tube | NO.OF(Tubes +filler) | Allowable tensile load （N） （short term/long term ） |
Allowable crush resistance （N/10cm) (short term/long term ） |
| 2～36 | 11.4 | 130 | 6 | 6 | 1500/600 | 1000/300 |
| 38～72 | 12.5 | 152 | 12 | 6 | 1500/600 | 1000/300 |
| 74～96 | 14.2 | 194 | 12 | 8 | 2000/600 | 1000/300 |
| 98～120 | 15.7 | 230 | 12 | 10 | 2000/600 | 1000/300 |
| 122～144 | 17.3 | 274 | 12 | 12 | 2000/600 | 1000/300 |
| >144 | Available upon customers request | |||||
Additional technical details
Fibers sit in high-modulus loose tubes with water-blocking yarns and tape inside and outside. Tubes and fillers are stranded around an FRP central member, with plastic-coated steel tape and a PE outer sheath. The manufacturer describes gel-free construction for cleaner, faster splicing, flexible tubes, crush resistance and mechanical and temperature performance; the jacket protects against UV, fungus and abrasion. A service life over 30 years is stated. The source also mentions tube filling gel and a steel central member in its feature list, conflicting with its gel-free and FRP descriptions; these points require manufacturer confirmation. For long-distance and building communications, duct or aerial installation; −40 to +70 °C; bend radius 10 × diameter static and 20 × dynamic.