WTB (Wired Train Bus) / MVB (Multifunction Vehicle Bus) Cables
FRL-WTB/MVB-02Y(ST+C)H-1P20A
A. Conductor B. Insulation C. Screen D. Sheath
Application
The 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.
Construction
Conductors
Stranded tin plated copper conductor according to IEC 60228 class 5
Insulation
Foam PE or Foam Skin
Cable Element
Twisted pair
Core Wrapping
Plastic tape(s)
EMC Screen1
Aluminium clad polyester foil
EMC Screen2
Tin plated copper braid
Core Wrapping
Plastic tape(s)
Outer Sheath
Cross-linked oil resistant LSZH compound
Electrical & Mechanical Properties
| Nominal Voltage | 300V |
| Maximum Conductor Temperature | 100℃ |
| Minimum Permissible Ambient Temperature | -40°C |
| Bending Radius | 12 x Overall Diameter |
Chemical & Environmental Properties
| EN 60684-2 | No fluorine |
| EN 50305; EN 60811-2-1 | Resistance to mineral oil & fuel oil, acid & alkali |
| EN 50305 | Resistance to ozone |
Fire Performance for rolling stock application
| EN 50306-2 | Hazard levels HL1, HL2/HL3, HL4 |
| DIN 5510-2 | Protection level 1/2/3/4 |
| BS 6853 | Interior use 1a, 1b, II; Exterior use 1a, 1b, II |
| NF F 16-101 | FO |
Fire Performance in general
| EN 50265-2-1; IEC 60332-1-2; NF C 32-070 2.1 (C2) | Vertical flame propogation for a single insulated wire or cable |
| EN 50266-2-4 + EN 50305; IEC 60332-3-24; NF C 32-070 2.2 (C1); VDE 0472 Teil 804 |
Vertical flame spread of vertically mounted bunched wires or cables |
| EN 50268-2; IEC 61034-2; NF C 32-073 ; NF C 20-902; NF F 16 101; VDE 0472 Teil 816 |
Low Smoke Emission |
| EN 50267-2-1; IEC 60754-1; NF C 32-074;NF C 20-454; VDE 0472 Teil 815 | Halogen Free |
| EN 50267-2-2/3; IEC 60754-2; NF C 32-074;NF C 20-453; VDE 0472 Teil 813 | Low Corrosivity (Acidity & Conductivity) |
| EN 50305; NFX 70-100; NFF 63808; TM1-04; BS6853 | Low Toxicity |
| NFF 16101; NFF 63808; BS6853 | Smoke index |
FRL-WTB/MVB-02Y(ST+C)H-1P20A
Nominal Cross Sectional Area |
Number & Nominal Diameter of Strands |
Nominal Sheath Thickness |
Nominal Overall Diameter |
Nominal Weight |
Maximum Conductor Resistance |
Impedance |
Maximum Attenuation |
||
20°C |
@0.75-3MHz |
@1MHz |
@2MHz |
||||||
mm2 |
AWG |
No/mm |
mm |
mm |
kg/km |
Ω/km |
Ω |
dB/km |
dB/km |
0.62 |
20 |
19/0.2 |
1.2 |
8.3 |
80 |
33.1 |
120+/-12 |
10 |
15 |
