Railway Cables
Railway Signalling Cable Railway Points Heating Cable

FRA 179 SW4

Applications :

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

Standards :

  • DIN 5510-2

Construction :

FRA 179 SW4FRA 59 SW4

  • 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 °C :

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
Velocityofpropagation % 69.8

Mechanical and Thermal Properties :

  • Minimum Bending Radius:5mm (static)

  • Temperature Range:-40℃～+105℃

Dimensions and Weight :

Conductor Construction No/mm NominalInner Conductor Diameter mm NominalOuter Conductor Diameter mm NominalOverall Diameter mm NominalWeight
7/0.1 0.305 2.13 2.54 11.1