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FRA 400 SW4

  • FRA 400 SW4,Coaxial Cables for Railway Application
  • FRA 400 SW4,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
  • Insulation: Crosslink Foam PE (SPEX)
  • Outer conductor (shield 1): Silver plated copper
  • Outer conductor (shield 2): Silver plated copper
  • Sheath: LSZH Elastomer

Electrical Characteristics at 20℃

Impedance Ω 50+/-2
Nominal Capacitance pF/m 94.5
Minimum Insulation Resistance MΩ.km 100000
Inner Conductor Resistance MΩ/km 29.45
Outer Conductor Resistance MΩ/km 7.6
Attenuation    
@10MHz dB/100m 5
@50MHz dB/100m 11
@100MHz dB/100m 16
@150MHz dB/100m 20
@200MHz dB/100m 23
@300MHz dB/100m 29
@400MHz dB/100m 34
@450MHz dB/100m 36
@500MHz dB/100m 38
@600MHz dB/100m 42
@800MHz dB/100m 50
@850MHz dB/100m 51
@900MHz dB/100m 53
@950MHz dB/100m 55
@1000MHz dB/100m 56
@1800MHz dB/100m 79
@1900MHz dB/100m 82
@2000MHz dB/100m 84
@2400MHz dB/100m 94
@3000MHz dB/100m 107
@4000MHz dB/100m 128
@5000MHz dB/100m 147
@6000MHz dB/100m 165
Velocity of propagation % 70.7

Mechanical and Thermal Properties

Minimum Bending Radius 25mm (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
19/0.2 1.0 4.24 5.0 60
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