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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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