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EPFU/Air Blown Fiber Unit (ABF )

The ABF is the product that with small diameter, lightweight, highly flexibility and proper stiffness, and it can be blown into the microduct of 5.0/3.5mm. The fibres are coated with a soft acrylate resin which provides excellent dimensional and thermal stability to cushion the fibres, in addition, the resin can be easily stripped in connecting the fibres. The outer sheath is a thermoplastic that is of low friction. The surface of the sheath is designed with special grooves, compared to the surface of the traditional optical fibre cable, it provides not only the high level of mechanical protection, but also the perfect blowing performance.

Product Name: EPFU/Air Blown Fiber Unit

Standards:
Unless otherwise specified in this specification, all requirements shall be mainly in accordance with the following standard specifications. Optical Fibre TU-T G.652 , G.657 IEC 60793-2-50 Optica Cable ……IEC 60794 1-2,IEC 60794-5

 

 

Description

Specification

Package & Tansportation

Feature:

  • Smaller diameter
  • Frees up capital to expand network and client base
  • Network design flexibility
  • 5/3.5mm microduct suitable
  • Easy to upgrade
  • Greater blowing distance
  • Fiber: G.G652D, G.657A1, G.657A2

Standards:

  • Unless otherwise specified in this specification, all requirements shall be mainly in accordance with the following standard specifications.
  • Optical fiber:ITU-T G.651、G.652、G.655、G.657 IEC 60793-2-10、IEC 60793-2-50
  • Optical Cable:IEC 60794-1-2、IEC 60794-5
  • Note: It is recommended that the structure of 2 fibers unit consist of 2 filled fibers, for it is proved that this structure is better in the blowing performance and the fiber separability than that of one with zero or one filled fiber

Specification:

Fiber count (F) Nominal diameter (mm) Nominal weight (kg/km) Min. bend radius (mm) Temperature (℃)
2 1.15±0.05 1 50 -30 to +60
4 1.15±0.05 1 50
6 1.35±0.05 1.3 60
8 1.50±0.05 1.8 80
12 1.65±0.05 2.2 80

Blowing Test:

Fiber count (F) Blowing machine Suitable microduct (mm) Blowing pressure (bar) Blowing distance (m) Blowing time (min)
2 PLUMETTAZ UM25 ERICSSON F CATWAY FBT-1.1 3/2.1 or 5/3.5 7/10 500/1000 10/18
4 3/2.1 or 5/3.5 500/1000 10/18
6 5/3.5 500/1000 10/18
8 5/3.6 500/1000 13/18
12 5/3.5 500/800 15/20

Attenuation:

fiber Type SM G.652D、G.655、G.657 MM 62.5/125
Attenuation 0.38dB/km max @1310nm 0.26dB/km max @1550nm 3.5dB/km max @850nm 1.5dB/km max @1300nm

Mechanical Performance:

Test Standard Parameters Test Results
Tension IEC 60794-1-2-E1 Load is 1×W fiber strain ≤0.4% at MAX Additional attenuation ≤0.05dB fiber strain ≤0.05% after test
Bend IEC 60794-1-2-E11A Diam 40mm×3turns 5 cycles at 20℃ Additional attenuation ≤0.05dB,after test
Crush IEC 60794-1-2-E3 100 N, 60s Additional attenuation ≤0.05dB,after test
All optical testing proceeded at 1550 nm

Environment Performance:

Test Standard Parameters Test Results
Temperature Cycle IEC 60794-1-2-F1 +20°C, -40°C, +60°C, (3 cycles) Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
Water Soak IEC 60794-5 1000 hours in water, 18℃~22℃ (Test after temp cycle) ≤0.07dB/km Change compared to start value
Damp Heat Cycle IEC 60068-2-38 25°C, 65°C, 25°C, 65°C, 25°C, -10°C, 25°C Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
All optical testing proceeded at 1550 nm

 

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Feature:

  • Smaller diameter
  • Frees up capital to expand network and client base
  • Network design flexibility
  • 5/3.5mm microduct suitable
  • Easy to upgrade
  • Greater blowing distance
  • Fiber: G.G652D, G.657A1, G.657A2

Standards:

  • Unless otherwise specified in this specification, all requirements shall be mainly in accordance with the following standard specifications.
  • Optical fiber:ITU-T G.651、G.652、G.655、G.657 IEC 60793-2-10、IEC 60793-2-50
  • Optical Cable:IEC 60794-1-2、IEC 60794-5
  • Note: It is recommended that the structure of 2 fibers unit consist of 2 filled fibers, for it is proved that this structure is better in the blowing performance and the fiber separability than that of one with zero or one filled fiber

Specification:

Fiber count (F) Nominal diameter (mm) Nominal weight (kg/km) Min. bend radius (mm) Temperature (℃)
2 1.15±0.05 1 50 -30 to +60
4 1.15±0.05 1 50
6 1.35±0.05 1.3 60
8 1.50±0.05 1.8 80
12 1.65±0.05 2.2 80

Blowing Test:

Fiber count (F) Blowing machine Suitable microduct (mm) Blowing pressure (bar) Blowing distance (m) Blowing time (min)
2 PLUMETTAZ UM25 ERICSSON F CATWAY FBT-1.1 3/2.1 or 5/3.5 7/10 500/1000 10/18
4 3/2.1 or 5/3.5 500/1000 10/18
6 5/3.5 500/1000 10/18
8 5/3.6 500/1000 13/18
12 5/3.5 500/800 15/20

Attenuation:

fiber Type SM G.652D、G.655、G.657 MM 62.5/125
Attenuation 0.38dB/km max @1310nm 0.26dB/km max @1550nm 3.5dB/km max @850nm 1.5dB/km max @1300nm

Mechanical Performance:

Test Standard Parameters Test Results
Tension IEC 60794-1-2-E1 Load is 1×W fiber strain ≤0.4% at MAX Additional attenuation ≤0.05dB fiber strain ≤0.05% after test
Bend IEC 60794-1-2-E11A Diam 40mm×3turns 5 cycles at 20℃ Additional attenuation ≤0.05dB,after test
Crush IEC 60794-1-2-E3 100 N, 60s Additional attenuation ≤0.05dB,after test
All optical testing proceeded at 1550 nm

Environment Performance:

Test Standard Parameters Test Results
Temperature Cycle IEC 60794-1-2-F1 +20°C, -40°C, +60°C, (3 cycles) Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
Water Soak IEC 60794-5 1000 hours in water, 18℃~22℃ (Test after temp cycle) ≤0.07dB/km Change compared to start value
Damp Heat Cycle IEC 60068-2-38 25°C, 65°C, 25°C, 65°C, 25°C, -10°C, 25°C Absolute attenuation ≤0.5dB/km,during test Additional attenuation ≤0.1dB/km, during and after test
All optical testing proceeded at 1550 nm

Packing and Marking

  • Each single length of cable shall be reeled on Fumigated Wooden Drum
  • Covered by plastic buffer sheet
  • Sealed by strong wooden battens
  • At least 1 m of inside end of cable will be reserved for testing.
  • Drum length: Standard drum length is 3,000m±2%; as required
  • 5.2 Drum Marking(can according to the requirement in the technical specification) Manufacturer name;
  • Manufacturing year and month Roll—direction arrow;
  • Drum length; Gross/net weight;

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