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.

Standard

  • ALSTOM 5 326 203
  • SNCF CT 446

Cable Construction

EUROBALISE-SIF
  • Conductors: Class 2 stranded tinned 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