Integrated 9/11/18/20 Cores 0.75mm² UIC Databus Cables
Application
The cables are used as connecting cables to transmit digital signals inside railway rolling stocks.
Standards
- DIN 5510-1
Construction
For 9 cores UIC databus cables:
- 4 cores: 10 mm² stranded tinned copper conductor with LSZH insulation.
- Combined Element: 3 cores (with Cu-strand 2×6mm², 1×2.5mm²) are twisted with a fi lling element to a combined element. Wrapping: Overlapped plasticfoil(s). Elements sheaths: TPE
- UIC Data Bus 0.75mm²: Two foam skin insulated tinned copper stranded conductors are twisted together with two fi lling elements to a pair.
- Wrapping: Overlapped plastic-foil(s).
Screen: Tinned copper wire braid screen
Element sheaths: TPE.
Wrapping: Overlapped plastic-foil(s). - Stranding: 4 strands are twisted to a core together with 3 cored element, the UIC data bus and two fi llers
- Core Wrapping: Overlapped plastic-foil(s).
- Outer Sheath: Cross-linked oil resistant LSZH compound.
For 11 cores UIC databus cables:
4 cores: 10 mm² stranded tinned copper conductor with LSZH insulation.
Combined Element: 5 cores (with Cu-strand 2×6mm², 1×2.5mm² and 2×1.0 mm²) are twisted with a fi lling element to form a combined element.
Wrapping: Overlapped plastic-foil(s).
Elements sheaths: TPE.
UIC Data Bus 0.75mm²: Two foam skin insulated tinned copper r stranded conductors are twisted together with two fi lling elements to a pair.
Wrapping: Overlapped plastic-foil(s).
Screen: Tinned copper wire braid screen.
Element sheaths: TPE.
Wrapping: Overlapped plastic-foil(s).
Stranding: 4 strands are twisted to a core together with 5 cored element, the UIC data bus and two fi llers.
Core Wrapping: Overlapped plastic-foil(s).
Outer Sheath: Cross-linked oil resistant LSZH compound.
For 18/20 cores UIC databus cables:
Star Quad: Four LSZH insulated 1mm² stranded tinned copper conductors are twisted to form a star quad.
UIC Data Bus 0.75mm²: Two foam skin insulated tinned copper stranded conductors are twisted together with two fi lling elements to form a pair.
Wrapping: Overlapped plastic-foil(s)
Screen: Tinned copper wire braid screen
Element sheaths: TPE.
Wrapping: Overlapped plastic-foil(s)
Stranding: 4 star quads are stranded together with 2 or 4 UIC data bus cable and several fi llers.
Core Wrapping: Overlapped plastic-foil(s).
Screen: Tinned copper-wire braid screen.
Outer Sheath: Cross-linked oil resistant LSZH compound.
Electrical Characteristics at 20℃
| Nominal Cross Section | mm² | 0.75 | 1 | 2.5 | 6 | 10 |
| No of Strand/Strand Diameter | 19/0.22 | 19/0.25 | 37/0.29 | 84/0.3 | 80/0.4 | |
| Maximum Conductor Resistant | Ω/km | 26.7 | 20 | 8.21 | 3.39 | 1.95 |
| 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 | - | - | - | - |
Mechanical and Thermal Properties
- Minimum Bending Radius: 6×OD (single); 12×OD (multiple)
- Temperature Range: -40℃ to +90℃ (during operation); -20℃ +50℃ (during installation)
Dimensions and Weight
| Cable Code | No. of cores& Nominal Conductor Cross Sectional Area No.×mm² |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
| RD-UIC-4C10S+2C6S+1C2.5S+2C0.75S | 4×10+2×6+1×2.5+2×0.75 | 1.8 | 25 | 917 |
| RD-UIC-4C10S+2C6S+1C2.5S+2C1S+2C0.75S | 4×10+2×6+1×2.5+2×1.0+2×0.75 | 1.8 | 25 | 969 |
| RD-UIC-4Q1S+2C0.75S | 4×4×1.0+ 2×0.75 | 1.8 | 18.5 | 498 |
| RD-UIC-4Q1S+2P0.75S | 4×4×1.0+ 2×2×0.75 | 1.8 | 23 | 530 |