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TYPE A1, A2 & A3 Railway Signalling Cable

  • TYPE A1, A2 & A3 Railway Signalling Cable
  • TYPE A1, A2 & A3 Railway Signalling Cable

Application

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.

Reference Standards

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

Cable Construction

  • Electrical Characteristics at 20℃Conductors: Tinned stranded copper, class 2 according to IEC 60228 & BS 6360.
  • Insulation: LSZH crosslinked.
  • Core Wrapping: Plastic tape(s) with overlapping.
  • Sheath: LSZH (for types A2 & A3 only).
Nominal Conductor Cross Section mm 0.75 1.15
Maximum Conductor DC Resistance Ω/km 24.8 17.3
Voltage Rating KV 0.65/1.1
Nominal Insulation Thickness mm 0.85 0.85

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.×mm
No. & Nominal
Diameter of Strands
No/mm
Nominal Sheath
Thickness
mm
Overall Diameter
Min/Max
mm
Nominal
Weight
kg/km
Type A1(without sheath)
RS/A1-H-1G0.75(BL) 1x0.75(blue) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75(BR) 1x0.75(brown) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75(RD) 1x0.75(red) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75(OR) 1x0.75(orange) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75(GR) 1x0.75(green) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75(VI) 1x0.75(violet) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G0.75 1x0.75(black) 7/0.37 - 2.7/3.2 16
RS/A1-H-1G1.15 1x1.15(black) 16/0.30 - 2.9/3.6 21
Type A2(with sheath)
RS/A2-3GH-1G0.75 1x0.75 7/0.37 0.7 4.0/5.0 30
RS/A2-3GH-1G1.15 1x1.15 16/0.30 0.7 4.3/5.3 35
Type A3(with sheath)
RS/A3-3GH-2G0.75 2x0.75 7/0.37 0.9 6.7/8.8 67
RS/A3-3GH-4G0.75 4x0.75 7/0.37 1.0 8.0/10.4 108
RS/A3-3GH-6G0.75 6x0.75 7/0.37 1.1 9.7/12.5 160
RS/A3-3GH-10G0.75 10x0.75 7/0.37 1.2 12.6/16.1 259
RS/A3-3GH-14G0.75 14x0.75 7/0.37 1.3 13.8/17.7 495
RS/A3-3GH-36G0.75 36x0.75 7/0.37 1.6 21.6/26.9 752
RS/A3-3GH-48G0.75 48x0.75 7/0.37 1.6 24.3/30.7 963

 

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