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    Multi Loose Tube Under Water Cable

    Application

    This cable exhibits excellent tensile strength and side press retardancy, having excellent mechanical and environmental performance. Featured by its thin diameter and light weight, it is best suited for underwater condition, junction communication system and long haul communication system.

    Description

    The cable consists of 5 to 36 fibers containing tubes or fillers stranded in up to 3 layers around a central strength member and bound under a PE jacket. Each tube contains 4 -12 fibers. Solid or stranded steel wire coated with polyethylene is usually used as central strength member. Fiber glass reinforced plastics (FRP) will be used as central strength member if non metallic construction is required. Either aramid yarn or fiber glass is wound around the tube to provide physical protection and tensile strength. The cable incorporates the first layer of PE inner jacket, a layer of corrugated steel tape armour, the second layer of PE inner jacket, a layer of steel wire armour and PE outer jacket. An optional Aluminium moisture tape can be incorporated under the jacket for water blocking and shielding purpose. An optional ripcord is located under the jacket to facilitate jacket removal.

    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)
    2-24 650.0 436.24 20.3 0.798 8000/1800 2650/595
    26-36 716.0 480.54 21.6 0.849 8000/1800 2650/595
    38-72 1008.0 676.51 25.2 0.991 8000/1800 2650/595

    Physical Properties

    Mechanical Properties

    Minimum Bending Radius:   Maximum Compressive Load: 4000N for unarmored cables;
    Under installation: 20×OD   6000N for armoured cables
    During operation 0×OD for unarmoured cables Repeated Impact: 4.4 N.m (J)
      20×OD for armoured cables Twist (Torsion): 180×10 times, 125×OD
    Temperature Range:   Cyclic Flexing: 25 cycles for armoured cables.
    Operating Temperature Range: -40℃(-40℉) to +70℃(+158℉)   100 cycles for unarmoured cables.
    Storage Temperature Range: -50℃(-58℉) to +70℃(+158℉) Crush Resistance: 220N/cm (125lb/in)

    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 jelly filled for superior fiber protection
    • Colored coded fibers and binders for quick and easy identification during installation.
    • High tensile strength design
    • Superior mechanical and environmental performance
    • Rugged and lightweight design
    • Durable construction to withstand high water pressure
    • Sufficient waterproof to withstand water penetration
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