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    RT/F3 D & S & B type Axle Counter Cable

    Application

    The cables are designed for transmission of signals up to 90 kHz in axle counter train detection systems.

    Standard

    • RT/E/PS/00031

    Cable Construction

    • Type CodesConductors: Tinned copper, 0.9/1.4 mm nominal diameter.
    • Insulation: Solid polyethylene.
    • Cabling Element: Two insulated conductors are twisted together to form a pair.
    • Stranding: Pairs are helically stranded in concentric layers.
    • Filling: Cable core interstices are filled with a low-permitivity compound. Unfi lled cables option can be offered upon request.
    • Core Wrapping: Plastic tape(s) with overlapping.
    • Moisture Barrier: One laminated sheath made of aluminium tape coated with PE Copolymer on at least one side is applied with longitudinally overlap.
    • Inner Sheath (for S/B type): Polyethylene or LSZH fi re retardant compound.
    • Mechanical Protection (for S/B type): One corrugated steel tape or brass tape is longitudinally applied with overlap. Unarmoured cables option can be offered upon request.
    • Outer Sheath: Polyethylene or LSZH fi re retardant compound. Ruggedised PE sheath compound can be offered upon request.
    • F1 class: Non LSZH cables.
    • F5 class: Unfi lled cables
    • D type: Unarmoured types
    • R type: Ruggedised PE sheath
    • S type: Steel tape armoured types
    • B type: Brass tape armoured types
    • E1, E2 & E3 types: 3 different induction protection levels available.

    Electrical Characteristics at 20℃

    Nominal Conductor Diameter mm 0.9 1.4
    Nominal Conductor Cross Section mm 0.63 1.5
    Maximum Conductor Resistance Ω/km 30.0 12.5
    Minimum Insulation Resistance @500 V DC (1min) MΩ.km 5000 5000
    Nominal Conductor Capacitance @800Hz/1000Hz (AC) nF/km 42+3 47+3
    Dielectric Strength, conductor to screen (DC voltage 2mins) V 3000 3000
    Maximum Average Attenuation      
    @1.0KHz dB/km 0.73 0.45
    @2.4KHz dB/km 1.10 0.62
    @40KHz dB/km 2.88 1.77
    @90KHz dB/km 3.70 2.41
    @1.024MHz dB/km 11.2 7.45
    Minimum Average Near-end Crosstalk      
    @1.0KHz dB/km 60 60
    @2.4KHz dB/km 60 60
    @40KHz dB/km 50 50
    @90KHz dB/km 50 50
    @1.024MHz dB/km 35 35

    Mechanical and Thermal Properties

    • Minimum Bending Radius: 7.5×OD (unarmoured); 10×OD (armoured)
    • Temperature Range: -30℃ to +60℃ (during operation); -10℃ to +60℃ (during installation)

    Core Identification

    Dimensions and Weight

    A-2Y(F)(L)2Y n×2×0.9/1.4 Cables

    Cable Code Number of Pairs
    (n)
    Nominal Sheath Thickness
    mm
    Maximum Overall
    Diameter
    mm
    Nominal Weight
    kg/km
    0.9mm Conductor, 1.55mm Insulated Wire
    RS/RT/F3-D-2Y(F)(L)2Y-2P0.9 2 2.4 13.2 210
    RS/RT/F3-D-2Y(F)(L)2Y-10P0.9 10 2.4 21.6 530
    RS/RT/F3-D-2Y(F)(L)2Y-12P0.9 12 2.4 24.8 580
    RS/RT/F3-D-2Y(F)(L)2Y-19P0.9 19 2.4 31.2 800
    RS/RT/F3-D-2Y(F)(L)2Y-24P0.9 24 2.4 33.8 980
    1.4mm Conductor, 2.2mm Insulated Wire
    RS/RT/F3-D-2Y(F)(L)2Y-2P1.4 2 2.4 23.4 320
    RS/RT/F3-D-2Y(F)(L)2Y-10P1.4 10 2.4 30.0 910
    RS/RT/F3-D-2Y(F)(L)2Y-12P1.4 12 2.4 32.0 1101
    RS/RT/F3-D-2Y(F)(L)2Y-19P1.4 19 2.4 37.3 1450
    RS/RT/F3-D-2Y(F)(L)2Y-24P1.4 24 2.4 42.3 1780

    A-2Y(L)2YB2Y n×2×0.9/1.4 Cables

    Cable Code Number of
    Pairs
    (n)
    Nominal Sheath Thickness
    mm
    Maximum Overall
    Diameter
    mm
    Nominal Weight
    kg/km
       
    0.9mm Conductor, 1.8mm Insulated Wire
    RS/RT/F3-S-2Y(L)2YB2Y-2P0.9 2 2.2 2.4 22.0 399
    RS/RT/F3-S-2Y(L)2YB2Y-10P0.9 10 2.2 2.4 30.4 880
    RS/RT/F3-S-2Y(L)2YB2Y-12P0.9 12 2.2 2.4 33.6 963
    RS/RT/F3-S-2Y(L)2YB2Y-19P0.9 19 2.2 2.4 40.0 1312
    RS/RT/F3-S-2Y(L)2YB2Y-24P0.9 24 2.2 2.4 42.6 1626
    1.4mm Conductor , 2.7mm Insulated Wire
    RS/RT/F3-S-2Y(L)2YB2Y-2P1.4 2 2.2 2.4 32.2 608
    RS/RT/F3-S-2Y(L)2YB2Y-10P1.4 10 2.2 2.4 38.8 1510
    RS/RT/F3-S-2Y(L)2YB2Y-12P1.4 12 2.2 2.4 40.8 1827
    RS/RT/F3-S-2Y(L)2YB2Y-19P1.4 19 2.2 2.4 46.1 2380
    RS/RT/F3-S-2Y(L)2YB2Y-24P1.4 24 2.2 2.4 51.1 2954

     

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