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    FRA 179 SW4

    • FRA 179 SW4 Cable, Coaxial Cables for Railway Application
    • FRA 179 SW4 Cable, Coaxial Cables for Railway Application

    Application and Description

    These cables are designed for flexible installations, inside and outside railway rolling stock.

    Standards

    DIN 5510-2

    Construction

    • Inner conductor: Stranded silver plated copper clad steel
    • Insulation: Crosslink Foam PE (SPEX)
    • Outer conductor: Silver plated copper
    • Sheath: LSZH Elastomer

    Electrical Characteristics at 20℃

    Impedance Ω 75+/-3
    Nominal Capacitance pF/m 60
    Minimum Insulation Resistance MΩ.km 100000
    Inner Conductor Resistance MΩ/km 800.5
    Outer Conductor Resistance MΩ/km 27.9
    Attenuation    
    @50MHz dB/100m 16
    @100MHz dB/100m 24
    @150MHz dB/100m 30
    @200MHz dB/100m 34
    @250MHz dB/100m 39
    @300MHz dB/100m 43
    @350MHz dB/100m 47
    @400MHz dB/100m 51
    @450MHz dB/100m 54
    @500MHz dB/100m 57
    @550MHz dB/100m 61
    @600MHz dB/100m 64
    @650MHz dB/100m 67
    @700MHz dB/100m 70
    @750MHz dB/100m 72
    @800MHz dB/100m 75
    @850MHz dB/100m 78
    @900MHz dB/100m 81
    @950MHz dB/100m 83
    @1000MHz dB/100m 86
    Velocity of propagation % 69.8

    Mechanical and Thermal Properties

    Minimum Bending Radius 5mm (static)
    Temperature Range -40℃~ +105℃

    Technical Data

    Conductor Construction Nominal Inner Conductor Diameter Nominal Outer Conductor Diameter Nominal Overall Diameter Nominal Weight
    No/mm mm mm mm kg/km
    7/0.1 0.305 2.13 2.54 11.1
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