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• Accurate process control ensuring good mechanical and temperature performances
• The material of loose tubes with good hydrolysis resistance and relatively high strength
• Tube filling compound providing the key protection for fibres
• Using small-sized B6a2 fibres with good micro and macro bending performance
• High fibre density
• Comply with IEC 60794-3-11(2007): Optical fibre cables- Part 3-11
• Water resistance of optical cable is ensured by the following measures:
• Special water-blocking compound filled in loose tubes
• Laminated aluminum tape armor
• Cable filling compound ensuring longitudinal water resistance
Technical Characteristics
| Type |
Stranded units |
Fibre count |
Cable diameter （mm） |
Cable weight （Kg/km） |
Sheath thickness （mm |
Bending radius Dynamic/static （mm） |
|---|---|---|---|---|---|---|
| GYTA(RS)-300B6a2(200μm) | 5×5 | 300 | 13.5 | 182 | 1.5 | 20D/10D |
Note:
1. For color arrangement of fibres and loose tubes, see the color sequence.
2. D is cable diameter.
• Tensile strength (N) – long/short term: 300/1000
• Crush resistance (N/100mm) – long/short term: 300/1000
| Sub-unit No. | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Yarn color | Red | Yellow | White | White | White |
• Transport/storage temperature: -40℃ to +70℃
Mechanical Performance Tests and Criteria
| Test | Testing method | Conditions | Acceptance criteria |
|---|---|---|---|
| Tensile |
IEC60794-1-21 method E1 |
TM = 1000N TL = 30% of TM. |
The maximum fibre strain should not be higher than 0.6% under TM load Additional attenuation ≤0.1dB after test No damage to outer jacket and inner elements |
| Impact |
IEC60794-1-21 method E4 |
Impact energy: 3J Impact number: 1 Impact points: 3 |
Additional attenuation ≤0.1dB after test No damage to outer jacket and inner elements |
| Crush |
IEC60794-1-21 method E3 |
Load: 1000N/100mm Duration time: 1min |
Additional attenuation ≤0.1dB after test No damage to outer jacket and inner elements |
| Torsion |
IEC60794-1-21 method E7 |
Cycles:5 Length under test: 2m Turns: ± 180° |
Additional attenuation ≤0.1dB after test No damage to outer jacket and inner elements |
| Repeated bending |
IEC60794-1-21 method E6 |
Bending radius: 20*D Cycles: 25 |
No damage to outer jacket and inner elements |
• Standard length: 4,000m; other lengths are also available.
