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Underground Fiber Cable

Home · Products · Underground Fiber Cable · Aluminum Armored Underground Fiber Cable GYTA
  • Product Details
Central Strength Member Material Steel Wire
Diameter(±0.05)mm 1.5
Loose Tube Material PBT
Diameter(±0.06)mm 1.8
Thickness(±0.03)mm 0.32
The Max.Core NO/Tube 6
Filler Rope Material LDPE
Color White
Diameter(±0.06)mm 1.8
Water Blocking layer(Material) Flooding Compound
Moisture Barrier Material Aluminum Tape
Thickness(±0.03)mm 0.20
Outer Sheath Material MDPE
Thickness(±0.2)mm 1.8
Cable Diameter(±0.2)mm 9.5
Cable Weight(±10)kg/km 90
Min. bending radius Without Tension 10.0×Cable -φ
Under Maximum Tension 20.0×Cable -φ
Temperature range(℃) Installation -20~+60
Transport&Storage -40~+70
Operation -40~+70

Fiber&Loose tube colors
Color No. of fiber: 1 Blue, 2 Orange, 3 Green, 4 Brown, 5 Gray, 6 White, 7 Red, 8 Black, 9 Yellow, 10 Violet, 11 Pink, 12 Aqua
Color No. of loose tubes: 1 Blue, 2 Orange, 3 Green, 4 Brown, 5 Gray, 6 White, 7 Red, 8 Black, 9 Yellow, 10 Violet, 11 Pink, 12 Aqua

The properties of single mode optical fiber (ITU-T Rec. G.652.D)

G.652D Single-mode fiber characteristics
Characteristic Condition Data Unit
Optical properties
Attenuation 1310nm ≤0.35 dB/km
1383nm ≤0.34 dB/km
1550nm ≤0.21 dB/km
1625nm ≤0.24 dB/km
Relative wavelength attenuation
@1310nm
@1550nm
1285~1330nm
1525~1575nm
≤0.03
≤0.02
dB/km
dB/km
Dispersion in the wavelength range of 1550nm — ≤18 ps/(nm.km)
Zero dispersion wavelength — 1312±10 nm
A zero-dispersion slope — ≤0.092 ps/(nm².km)
zero-dispersion slope typical value — 0.086 ps/(nm².km)
Cable cut-off wavelength λcc — ≤1260 nm
Mode field diameter MFD 1310nm 9.2±0.4 μm
1550nm 10.4±0.5 μm
Effective group refractive index 1310nm 1.466 —
1550nm 1.467 —
Attenuation discontinuities 1310nm ≤0.05 dB
1550nm ≤0.05 dB
Geometric characteristics
Core diameter — 124.8±0.7 μm
Cladding roundness — ≤0.70 %
Coating diameter — 245±5 μm
Coating / package concentricity error — ≤12.0 μm
Coating no roundness — ≤6.0 %
Core / package concentricity error — ≤0.5 μm
The warpage (radius) — ≥4 m
Environmental characteristics(1310nm、1550nm、1625nm)
Temperature additional attenuation -60℃ ~+85℃ ≤0.05 dB/km
Flooding additional attenuation 23℃,30 days ≤0.05 dB/km
Hot and humid additional attenuation 85℃ and 85% Relative humidity, 30 days ≤0.05 dB/km
Dry heat aging 85℃ ≤0.05 dB/km
Mechanical properties
Screening tension — ≥9.0 N
The macro bend Additional attenuation
1Circle Φ32mm
100Circle Φ50mm
100Circle Φ60mm
1550nm ≤0.05 dB
1310nm and 1550nm ≤0.05 dB
1625nm ≤0.05 dB
Coating peeling force Typical average 1.5 N
≥13 ≤8.9 N
Dynamic fatigue parameters — ≥20 —

NO. Item Requirement
1 Allowable Tensile Strength Short Term 1500 N
Long Term 600 N
2 Allowable Crush Resistance Short Term 1000 (N/100mm)
Long Term 300 (N/100mm)

Main mechanical & environmental performance test
Item Test Method Acceptance Condition
Tensile Strength
IEC 794-1-2-E1
- Load: Short term tension
- Length of cable: about 50m
-No fiber break and no sheath damage.
Crush Test
IEC 60794-1-2-E3
- Load: Short term crush
- Load time: 1min
-Loss change ≤0.05dB@1550nm
-No fiber break and no sheath damage.
Impact Test
IEC 60794-1-2-E4
- Points of impact: 3
- Times of per point: 1
- Impact energy: 5J
-Loss change ≤0.1dB@1550nm
-No fiber break and no sheath damage.
Temperature Cycling Test
YD/T901-2001-4.4.4.1
- Temperature step:
+20℃→-40℃→+70℃→+20℃
- Time per each step: 12 hrs
- Number of cycle: 2
-Loss change ≤0.05 dB/km@1550 nm
-No fiber break and no sheath damage.

 

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