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Railway Cables |  |
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WTB (Wired Train Bus)/MVB (Multifunction Vehicle Bus) Cables
Application
The cables are used as connecting cables to transmit digital signals inside railway rolling stocks. The
communication system in a locomotive uses a wire backed bus system to the TCN standard for control and
instrumentation and for diagnostics. This bus system consists of the rail bus WTB (Wired Train Bus) and the road
bus MVB (Multifunction Vehicle Bus) which are connected via redundant gateways.
Standards
DIN 5510-1
Construction
Conductors
Stranded tinned copper conductor according to IEC 60228 class 5.
Insulation
Foam skin-composite PE made of inner cellular layer and outer solid skin.
Cable Element
Twisted pair.
Core Wrapping
Plastic tape(s).
EMC Screen 1
Aluminium clad polyester foil.
EMC Screen 2
Tinned copper braid.
Core Wrapping
Plastic tape(s).
Outer Sheath
Cross-linked oil resistant LSZH compound.
Electrical Characteristics at 20℃
| Nominal Cross Section/AWG | mm² | 0.62/20 |
| Maximum Conductor Resistance | Ω/km | 33.1 |
| Impedance@0.5-2MHz | Ω | 120+/-12 |
| Maximum Attenuation @1MHz | dB/km | 10 |
| Maximum Attenuation @2MHz | dB/km | 15 |
| Nominal Voltage Rating | V | 300 |
Mechanical and Thermal Properties
Minimum Bending Radius:6×OD (single); 12×OD (multiple)
Temperature Range:-40℃ to +100℃ (during operation);
-20℃ +50℃ (during installation)
Dimensions And Weight
| Cable Code | No. of cores& Nominal Conductor Cross Sectional Area No.×mm² |
Nominal Diameter of Strands No/mm |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
| RD-WTB/MVB--02YS(ST+C)H-1P20A | 1×2×0.62 | 19/0.2 | 1.2 | 8.3 | 80 |