Railway Cables | ||||||||||||
EUROBALISE SIF
Application
The cables are used in Eurobalise (ERTMS) speed control circuits. The cables are laid in trays alongside railway lines and connect an “Eurobalise” located between the rails to the Eurocoder (LEU) located in a control centre.
Standards
● ALSTOM 5 326 203
● SNCF CT 446
Construction
Conductors
Class 2 stranded copper.
Insulation
Solid polyethylene.
Inner sheath
Low density polyethylene.
Screen
Two corrugated copper braid shields.
Intermediate Sheath
Low density polyethylene.
Armour
Galvanized steel braid armour.
Outer Sheath
Flame Retardant PVC.
Electrical Characteristics at 20℃
Nominal Conductor Diameter | mm |
1.04 |
Nominal Cross Section Area | mm² |
0.85 |
Maximum Conductor Resistance (DC) | Ω/km |
22 |
Characteristic Impedance @100KHz-1MHz | Ω |
95 |
Maximum Attenuation | ||
@560 kHz | dB/km |
7.5 |
@1MHz | dB/km |
10 |
Nominal Insulated Thickness | mm |
0.63 |
Mechanical and Thermal Properties
Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)
Temperature Range: -30℃ to +70℃ (during operation); -20℃ to +50℃ (during installation)
Dimensions And Weight
Cable Code |
No. of cores& Nominal Conductor Cross Sectional Area No.×mm² |
No. & Nominal Diameter of Strands No/mm |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
||
Inner |
Inter. |
Outer |
|||||
RS/SIF-2Y2YC2Y(SWB)Y-2C0.85S | 2 x 0.85 |
7/0.386 |
1.0 |
0.5 |
1.6 |
15 |
301 |