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Underground Fiber Cable

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Non Metallic Underground Fiber Cable GYFTY

Non Metallic Underground Fiber Cable GYFTY is an all-dielectric outdoor fiber cable designed for underground and aerial communication networks where electrical isolation and reliable fiber protection are required. This All Dielectric Fiber Optic Cable adopts a non-metallic structure with FRP central reinforcement and gel-filled loose tubes to provide stable transmission and strong environmental resistance. The Non Conductive Fiber Cable design eliminates metallic components, making it suitable for installation in areas with electromagnetic interference risks.

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  • Product Details

Technical data

No. of cable 96
Fiber Model G652D
Design (Strength Member +Tube) 1+8
Central Strength Member Material FRP
Diameter (±0.05) mm 2.1
Cushion Material PE
Thickness (±0.03) mm 0.65
Loose Tube Material PBT
Diameter (±0.06) mm 2.1
Thickness (±0.03) mm 0.35
The Max. Core NO./Tube 12
Water Blocking layer (Material) Flooding Compound
Outer Sheath Material HDPE
Thickness (±0.2) mm 1.8
Cable Diameter (±0.2) mm 11.2
Cable Weight (±5) 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

Application:

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

Fibre & Loose Tube Colours

No. 1 2 3 4 5 6
Color Blue Orange Green Brown Gray White
No. 7 8 9 10 11 12
Color Red Black Yellow Violet Pink Aqua

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

Item Specification
Fiber type Single mode
Fiber material Doped silica
Attenuation coefficient @ 1310 nm ≤ 0.36 dB/km
@ 1383 nm ≤ 0.32 dB/km
@ 1550 nm ≤ 0.22 dB/km
@ 1625 nm ≤ 0.30 dB/km
Point discontinuity ≤ 0.05 dB
Cable cut-off wavelength ≤ 1260 nm
Zero-dispersion wavelength 1300 ~ 1324 nm
Zero-dispersion slope ≤ 0.092 ps/(nm²·km)
PMD₀ (Quadrature average*) ≤0.2 ps/km¹ᐟ²
Mode field diameter @ 1310 nm 9.2±0.4 um
Core / Clad concentricity error ≤ 0.5 um
Cladding diameter 125.0 ± 0.7 um
Cladding non-circularity ≤1.0%
Primary coating diameter 245 ± 10 um
Proof test level 100 kpsi (=0.69 Gpa), 1%
Temperature dependence
0oC~+70oC @ 1310 & 1550nm		 ≤ 0.1 dB/km

 

 

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