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FRA 59 SW4

Applications :

  • FRA 59 SW4 cables are designed for flexible installations, inside and outside railway rolling stock.

Standards :

  • ●DIN 5510-2

FRA 59 SW4 Coaxial Cables for Railway Application

Construction :

  • Inner conductor: Tinned copper.
    Insulation: Crosslink PE (PEX).
    Outer conductor: Tinned copper braid.
    Sheath: LSZH Elastomer.

Electrical Characteristics at 20 °C :

  • Impedance Ω 75+/-3
    Nominal Capacitance pF/m 67
    Minimum Insulation Resistance MΩ.km 100000
    Inner Conductor Resistance MΩ/km 58
    Outer Conductor Resistance MΩ/km 16.1
    Attenuation    
    @10MHz dB/100m 3
    @50MHz dB/100m 8
    @100MHz dB/100m 12
    @150MHz dB/100m 15
    @200MHz dB/100m 18
    @300MHz dB/100m 23
    @400MHz dB/100m 27
    @450MHz dB/100m 29
    @500MHz dB/100m 31
    @600MHz dB/100m 35
    @800MHz dB/100m 42
    @850MHz dB/100m 44
    @900MHz dB/100m 46
    @950MHz dB/100m 47
    @1000MHz dB/100m 49
    Velocity of propagation % 66

Mechanical and Thermal Properties :

  • Minimum Bending Radius: 30mm (static)
    Temperature Range: -40℃~ +105℃

Dimensions and Weight :

Conductor Construction No/mm Nominal Inner Conductor Diameter mm Nominal Outer Conductor Diameter mm Nominal Overall Diameter mm Nominal Weight kg/km
7/0.22 0.66 4.45 6.1 57