The central loose tube optical fiber cable GYXTW is suitable for installation in aerial or duct environment for communication between bureaus, metropolitan network, access network.
Cable Fiber Number | 4-12 | ||
Optical fiber type | G.652D | ||
Design structure (stiffener + loose casing and filling) | 1 | ||
Stiffening member | Materials | Phosphating steel wire | |
Diameter（±0.05）mm | 0.7 | ||
loose tube | Materials | PBT | |
Diameter（±0.06）mm | 2.15 | ||
Thickness(±0.03）mm | 0.30 | ||
Each tube some | 12 | ||
The armoured layer | Materials | Plastic coated steel belt | |
Thickness（+0.03）mm | 0.20 | ||
Outer sheath | Materials | MDPE | |
Thickness（±0.2）mm | 1.8±0.05 | ||
Color | Black | ||
Cable size mm | 7.0±0.05 | ||
Fiber optic cable net weight（±10）kg/km | 50KG/KM | ||
Allowable tensile strength (N) | 600 | ||
Flattening force is allowed (N/100mm) | 600 | ||
Application | Overhead、monitoring | ||
Attenuation | 1310nm | ≤0.36dB/ km | |
1550nm | ≤0.22dB/ km | ||
bending radius | Dynamic | 25.0D | |
Static | 12.5D | ||
temperature range （℃） | Installation temperature | -20℃+60℃ | |
Transportation & Storage | -40℃+70℃ | ||
Running temperature | -40℃+70℃ | ||
Optical chromatography
number | 1 | 2 | 3 | 4 | 5 | 6 |
color | blue | Orange | green | brown | gray | white |
number | 7 | 8 | 9 | 10 | 11 | 12 |
color | red | black | yellow | violet | pink | turquoise |
Loose tube chromatography
number | 1 |
Color | White |
Fiber properties (ITU-TG.652.D)
Item | Unit | Parameter | |
G.652D | |||
Mode field diameter | 1310nm | m | 9.2± 0.4 |
1550nm | m | 10.4 ± 0.5 | |
Cladding diameter | m | 125± 1 | |
Cladding non-circularity | % | ≤1 | |
Core/cladding concentricity error | m | ≤0.6 | |
Coating diameter | m | 242± 7 | |
Coating/cladding concentricity error | m | ≤12 | |
Cable cut-off wavelengt | nm | ≤1260 | |
Attenuation Coefficient | 1310nm | dB/km | ≤0.36 |
1550nm | dB/km | ≤0.22 | |
Proof stress leve | kpsi | ≥100 | |
Other parametersmeet standards ITU-T G.652
Main mechanical properties and environment tests
number | item | test mode | acceptance requirements | |
1 | Stretch IEC 60794-1-2-E1 | - Load: 600 N(long term) G (short-term) When G is less than 1500N, the cable load should be 1500N; | Under long-term tension load: - The optical fiber has no obvious strain -Noobvious additional | |
when G is between 1500 and 3000N, the cable load should be 1500N; when G is greater than 3000N, the cable load should be 3000N. - Subject length: 50 m - Load duration: ≥1 minute | attenuation Short-term tension load: - Additional attenuation: 0.1dB After the test is completed: -Nosignificant residual additional attenuation - No obvious residual fiber strain -No broken fiberand visible cracking of sheath - Cable residual strain: 0.08% | |||
2 | flattening IEC 60794-1-2-E3 | - Load: 300 N (long term) 1000 N (short term) - Load duration: ≥1 minute | Under long-term flattening load: -Noobvious additional attenuation Short-term flattening load: - Additional attenuation: 0.1dB After the test is completed: -Nosignificant residual additional attenuation -No broken fiberand visible cracking of sheath | |
3 | impact IEC 60794-1-E4 | - Impact points: 5 - Impact times per point :1 - Impact energy: 4.5 N·m | After the test is completed: -Nosignificant residual additional attenuation -No broken fiberand visible cracking of sheath | |
4 | alternating bending IEC 60794-1-2-E6 | - Core shaftradius: 20 timescable diameter - Load: 15kg - Subject length: 1 m - Bending rate: 2 seconds/time - Bending times: ≥30 times - Bending Angle: ±90 | After the test is completed: -Nosignificant residual additional attenuation -No broken fiberand visible cracking of sheath | |
5 | reverse IEC 60794-1-E7 | - Subject length: 1 m - Load: 15kg - Torsion Angle: ±180° - Number of twists: ≥10 times | After the test is completed: -Nosignificant residual additional attenuation -No broken fiberand visible cracking of sheath | |
6 | infiltration test IEC 60794-1-F5B | - Water column height: 1 m - Sample length: 3 m - Test duration: 24 hours |
There is no water seepage | |
7 | High and low temperature cycle test IEC 60794-1-F1 | - Temperature step: +20℃→-40℃ →+70℃→+20℃ - Duration of each temperature point: 12 hours - Number of cycles: 2 | -40℃+70 ℃ Additional attenuation 0.1 dB/km@1550 nm After the test is completed: -Nosignificant residual additional attenuation -No broken fiberand visible cracking of sheath | |
8 | Drip test IEC 60794-1-E14 | - Sample length: 30 cm - Temperature:70°C -2°C - Test time: 24 hours | No drip | |
Sheath tag
Theinitialnumber of lengths ordered for any coil shall begin with zero metres. The accuracy of length marker measurement should be controlled within
±1%.Fiber optic cable printing should have the following content.
A. Name of manufacturer
B. Cable type
C. Yearand month of manufactur
D. each meter of length marked along the cable
Plate with
Optical fiber some | Wooden tray diameter | Wooden platewidth | Long | packaging |
4-12 | 700MM | 650MM | 3000(m) | Plastic coated Steel belt |