TYPE C3 Railway Signalling Cable


The cables are designed for railway signalling systems. The cables are suitable for use in d.c. circuits where the nominal voltage to earth does not exceed 1100 volts and are suitable for installation in ducts.


  • NR/PS/SIG/00005(formerly RT/E/PS/00005)

Cable Construction

TYPE C3 Railway Signalling Cable Railway Cable
Conductors Tinned stranded copper, class 5 according to IEC 60228 & BS 6360.
Insulation EPR Type GP4 to BS 7655.
Screen Aluminium tape.
Drain Wire 2.5 mm^2 fl exible tinned copper.
Sheath HDPCP Type RS2 to BS 7655.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section mm^2 2.5
Maximum DC Conductor Resistance Ω/km 8.21
Minimum Noise Reduction dB 60
Voltage Rating KV 0.65/1.1
Nominal Insulation Thickness mm 1.05

Mechanical and Thermal Properties

Minimum Bending Radius 6×OD (static); 15×OD (dynamic)
Temperature Range -25℃ to +85℃ (during operation); -10℃ to +85℃ (during installation)

Dimensions and Weight

Cable Code No. of cores& Nominal Conductor Cross Sectional Area No. & Nominal Diameter of Strands Nominal Sheath Thickness Overall Diameter Min/Max Nominal Weight
No.×mm^2 No/mm mm mm kg/km
Type C3
RS/C3-3G(St)5G-1P2.5S 1×2×2.5 50/0.25 3.8 15.0/20.0 390

Routine test voltage: 2.5kV for 5 minutes

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