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    Central Loose Tube Cable

    Application

    This cable is characterized by light weight and small diameter, suitable for both aerial and duct installation. The cable can also be used for direct burial for armoured option.

    Description

    Central loose tube cable contains one tube with 2 - 24 fibers, which is filled with water blocking gel. Either aramid yarn or fiber glass is wound around the tube to provide physical protection and tensile strength. The cable can be jacketed with either PE or LSZH. PE is the preferred option in outdoor environment for water protection purpose. For direct burial, either steel wire armour or corrugated steel tape armour is applied with an optional inner jacket of either PVC, PE or LSZH. An Aluminium moisture tape can be incorporated under the jacket for water blocking and shielding purpose. A ripcord is located under the jacket to facilitate jacket removal.

    Construction

    Physical Properties

    Fiber Count Nominal Weight(kg/km) Nominal Weight(lb/kft) Nominal Outer Diameter(mm) Nominal Outer Diameter(in) Maximum Pulling Load
    Installation(N/Ib) In Service(N/Ib)
    2-12 60.0 40.27 7.5 0.296 1500/337 445/100
    14-24 65.0 43.62 8.5 0.335 1500/337 445/100

    Construction

    Physical Properties

    Fiber Count Nominal Weight(kg/km) Nominal Weight(lb/kft) Nominal Outer Diameter(mm) Nominal Outer Diameter(in) Maximum Pulling Load
    Installation(N/Ib) In Service(N/Ib)
    2-12 125.0 83.89 10.5 0.414 2670/600 890/200
    14-24 145.0 97.32 12.0 0.473 2670/600 890/200

    Construction

     

     

    Fiber Count Nominal Weight(kg/km) Nominal Weight(lb/kft) Nominal Outer Diameter(mm) Nominal Outer Diameter(in) Maximum Pulling Load
    Installation(N/Ib) In Service(N/Ib)
    2-12 170.0 114.09 10.5 0.414 8000/1800 2650/595
    14-24 245.0 164.43 12.0 0.473 8000/1800 2650/595

    Physical Properties

    Mechanical Properties

    Minimum Bending Radius:   Maximum Compressive Load: 3000N
    Under installation: 20×OD Repeated Impact: 4.4 N.m (J)
    During operation 10×OD for unarmoured cables Twist (Torsion): 180×10 times, 125×OD
      20×OD for armoured cables Cyclic Flexing: 25 cycles for armoured cables.
    Temperature Range:     100 cycles for unarmoured cables.
    Operating Temperature Range: -40℃(-40℉) to +70℃(+158℉) Crush Resistance: 263N/cm (150lb/in)
    Storage Temperature Range: -50℃(-58℉) to +70℃(+158℉)    

    Fiber Compliance

    Temperature Cycling 
    Tensile Strength 
    Crush 
    Impact 
    Repeated Bending 
    Torsion 
    Kink 
    Cable Bend 
    Cool Bend
    IEC60794-1-2-F2 
    IEC60794-1-2-E1A
    IEC60794-1-2-E3 
    IEC60794-1-2-E4 
    IEC60794-1-2-E6 
    IEC60794-1-2-E7 
    IEC60794-1-2-E10 
    IEC60794-1-2-E11 
    IEC60794-1-2-E11

    Safety Compliance

    General Purpose Grade Flammability Test: OFN (UL1581)
    Riser Grade Flammability Test: OFNR/FT4 (UL1666)
    Plenum Grade Flammability Test: OFNP/FT6 (UL 910)
    FRPVC Grade Flammability Test: IEC60332-1
    LSZH Grade Halogen Content Test: IEC 60754-1 
    Acidity Test: IEC 60754; 
    Smoke Emission Test: IEC61034-1/2
    LSFROH Grade  Halogen Content Test: IEC 60754-1 
    Acidity Test: IEC 60754; 
    Smoke Emission Test: IEC61034-1/2 
    Flammability Test: IEC60332-1 & IEC 60332-3C/A
    FR Grade Fire Resistance Test : IEC 60331 / BS 6387 CWZ

    Standard Compliance

            Telcordia GR-20           RUS 7 CFR 1755.900 (REA PE-90)                       ICEA S 87-640

    Features

    • Loose Tube construction provides environmental protection
    • Loose tube jelly filled for superior fiber protection
    • Colored coded fibers and binders for quick and easy identification during installation.
    • Very lightweight and flexible design allows for easy installation
    • UV or moisture resistant for outdoor application
    • Compact design with small cable diameter
    • All Dielectric strength member
    • Anti-termite and rodent protection as options
    • Optional Aluminium moisture barrier for EMI protection
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