TYPE C3 Railway Signalling Cable

Application

The TYPE C3 Railway Signalling 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 installation in ducts.

Standards

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

Construction

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 mm² fl exible tinned copper.

Sheath
HDPCP Type RS2 to BS 7655.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section	mm²	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.×mm²	No. & Nominal Diameter of Strands No/mm	Nominal Sheath Thickness mm	Overall Diameter Min/Max mm	Nominal Weight 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