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  • Air Blown Fiber Unit (EPFU) Air Blown Fiber Unit (EPFU)
  • Air Blown Fiber Unit (EPFU)

    The EPFU 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 Fibers are coated with a soft acrylate resin which provides excellent dimensional and thermal stability to cushion the fibers;
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  • The EPFU 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 Fibers are coated with a soft acrylate resin which provides excellent dimensional and thermal stability to cushion the fibers; in addition, the resin can be easily stripped in connecting the Fibers. 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 fiber cable; it provides not only the high level of mechanical protection, but also the perfect blowing performance.



    Features and Benefits
    ● 2,4,6,8 and 12 Fibers options.
    ● Stable structure, good mechanical and temperature performance.
    ● Designed with special grooves to advance blowing distance.
    ● Lightweight and proper stiffness, repeat installation.
    ● Designed with no gel, easy stripping and handling.
    ● Better costs advantage compared to traditional product.
    ● Complete accessories, less manpower, lower installation


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


    Technical Parameter

    Fibre Unit Structure


    Fibre Unit Structure.jpg


    Basic Performance

    Fiber Count

    2 Fibers

    4 Fibers

    6 Fibers

    8 Fibers

    12 Fibers

    Outer Diameter(mm)

    1.15±0.05

    1.15±0.05

    1.35±0.05

    1.50±0.05

    1.65±0.05

    Weight(g/m)

    1.0

    1.0

    1.3

    1.8

    2.2

    Min Bend radius(mm)

    50

    50

    60

    80

    80

    Fiber type

    G652D, G657A1 or G657A2

    Attenuation

    0.40dB/km max @1310nm 0.30dB/km max @1550nm

    Temperature

    Storage-30℃ +60℃ Operation-30℃ +60℃ Installation-5℃ +50℃

    Note: It is recommended that the structure of 2 Fibers unit consist of 2 filled Fibers, for it is proved that 2 Fibers unit with 2 filled Fibers is better than the one with zero or one filled fiber in the blowing performance and the fiber stripping-ability


    Blowing Test

    Fiber Count

    2 Fibers

    4 Fibers

    6 Fibers

    8 Fibers

    12 Fibers

    Standard duct

    5.0/3.5 mm

    Pressure

    7bar / 10bar

    Typical blowing distance

    500m / 1000 m

    500m / 1000 m

    500m / 1000 m

    500m / 1000 m

    500m / 800 m

    Typical blowing time

    10 min / 18 min

    10 min / 18 min

    12 min / 18 min

    13 min / 18 min

    15 min / 20 min


    Mechanical Performance

    Test

    Standard

    Parameters

    Test Results

    Tension

    IEC 60794-1-2-E1

    Load is 1×W

    fibre strain ≤0.4% at MAX
    Additional attenuation ≤0.05dB
    fibre 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


    Length
    Standard delivery lengths are 1000m, 2000m, 3000m, 4000m, 6000m with a tolerance of  -0.5~+1%.

     

    Packaging

    Free coiling in the pan.


    Free coiling in the pan..jpg




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