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Railway Cables |  |
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FRA 400 SW4
Applications :
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These cables are designed for flexible installations, inside and outside railway rolling stock.
Standards :
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DIN 5510-2
Construction :
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Inner conductor:Stranded silverplated copper.
Insulation:Crosslink Foam PE(SPEX).
Outer conductor(shield1):Silver plated copper.
Outer conductor(shield2):Silver plated copper.
Sheath:LSZH Elastomer.
Electrical Characteristics at 20 °C :
| Impedance | Ω | 50+/-2 |
| Nomina lCapacitance | 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 :
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Minimum Bending Radius:25mm (static)
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Temperature Range:-40℃～+105℃
Dimensions and Weight :
| Conductor Construction No/mm | NominalInner Conductor Diameter mm | NominalOuter Conductor Diameter mm | NominalOverall Diameter mm | NominalWeight |
| 19/0.2 | 1.0 | 4.24 | 5.0 | 60 |