CALEDONIAN
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WTB Cables (Wired Train Bus Cables) are designed for permanent installation inside of rolling stock to connect fixed parts. A typical application is a communication system in a locomotive. The system 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.
Electrical Characteristics at 20℃
| Conductor | Stranded tinned copper conductor according to IEC 60228 class 5 |
| Insulation | Foam skin-composite PE made of inner cellular layer and outer solid skin |
| Core Wrapping | Plastic tape(s) |
| EMC Screen | Tinned copper braid |
| Outer Sheath | Cross-linked oil resistant LSZH compound |
| Nominal Cross Section | mm^2 | 0.75 |
| Maximum Conductor Resistance | Ω/km | 26.7 |
| Impedance@1.0-10MHz | Ω | 120+/-12 |
| Maximum Attenuation @1MHz | dB/km | 10 |
| Maximum Attenuation @1.5MHz | dB/km | 13 |
| Maximum Attenuation @2MHz | dB/km | 14 |
| Maximum Attenuation @3MHz | dB/km | 18 |
| Maximum Transfer Impedance | mΩ/m | 30 |
| Nominal Voltage Rating | V | 300 |
| Cable Code | No. of cores& Nominal Conductor Cross Sectional Area No.×mm^2 |
Nominal Diameter of Strands No/mm |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|---|---|---|---|---|---|
| RD-WTB-02YSCH-2C0.75S | 2×0.75 | 19/0.22 | 1.4 | 8.3 | 97 |
| RD-WTB-02YSCH-1P0.75S | 1×2×0.75 | 19/0.22 | 1.4 | 9.0 | 110 |
+852 6230 0392
Caledonian Cables
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