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