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 TYPE D1 & D2 Railway Signalling Cable

Application

TYPE D1 & D2 Railway Signalling Cable 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.

Reference Standards

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

Construction

TYPE D1 & D2 Railway Signalling Cable

Conductors: Tinned stranded copper, according to IEC 60228 class 2& BS 6360.

Insulation: LSZH or EPR Type GP4 to BS 7655.

Core Wrapping: Plastic tape(s) with overlapping.

Sheath: LSZH.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section mm² 0.75 1.5 2.5 10.0 16.0 35.0 70.0 95
Maximum Conductor DC Resistance Ω/km 24.8 12.2 7.56 1.84 1.16 0.529 0.27 0.195
Voltage Rating KV 0.65/1.1
Nominal Insulation Thickness mm 0.85 0.8 0.8 1.0 1.0 1.2 1.4 1.6

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 D1
RS/D1-3GH-1G0.75 1×0.75 7/0.37 2.0 6.5/8.1 25
RS/D1-3GH-1G1.5 1×1.5 7/0.53 2.0 6.8/8.5 30
RS/D1-3GH-1G2.5 1×2.5 7/0.67 2.0 7.2/8.9 34
RS/D1-3GH-1G10 1×10.0 7/1.35 2.0 9.4/11.8 205
RS/D1-3GH-1G35 1×35.0 19/1.53 2.0 12.9/16.1 495
Type D2
RS/D2-3GH-2G1.5 2×1.5 7/0.53 2.0 9.4/12.1 140
RS/D2-3GH-2G2.5 2×2.5 7/0.67 2.0 10.5/13.1 170
RS/D2-3GH-2G10 2×10.0 7/1.35 2.0 15.0/18.7 383
RS/D2-3GH-2G16 2×16.0 7/1.70 2.0 16.7/20.9 625
RS/D2-3GH-2G35 2×35.0 19/1.53 2.2 22.3/27.8 994
RS/D2-3GH-2G70 2×70.0 19/2.14 2.4 28.8/36.0 2121
RS/D2-3GH-2G95 2×95.0 19/2.52 2.6 33.2/41.5 2760
RS/D2-3GH-4G0.75 4×0.75 7/0.37 2.0 10.2/12.8 150
RS/D2-3GH-7G0.75 7×0.75 7/0.37 2.0 11.8/14.7 225
RS/D2-3GH-10G0.75 10×0.75 7/0.37 2.0 14.4/18.0 280
RS/D2-3GH-12G0.75 12×0.75 7/0.37 2.0 14.8/18.5 321
RS/D2-3GH-19G0.75 19×0.75 7/0.37 2.0 17.0/21.3 425
RS/D2-3GH-27G0.75 27×0.75 7/0.37 2.0 20.1/25.1 606
RS/D2-3GH-37G0.75 37×0.75 7/0.37 2.2 22.7/28.4 786
RS/D2-3GH-48G0.75 48×0.75 7/0.37 2.2 25.7/32.2 972
RS/D2-3GH-4G1.5 4×1.5 7/0.53 2.0 10.9/13.7 250
RS/D2-3GH-7G1.5 7×1.5 7/0.53 2.0 12.6/15.8 370
RS/D2-3GH-10G1.5 10×1.5 7/0.53 2.0 15.6/19.4 410
RS/D2-3GH-12G1.5 12×1.5 7/0.53 2.0 16.0/20.0 410
RS/D2-3GH-19G1.5 19×1.5 7/0.53 2.0 18.5/23.1 615
RS/D2-3GH-27G1.5 27×1.5 7/0.53 2.2 22.2/27.8 897
RS/D2-3GH-37G1.5 37×1.5 7/0.53 2.2 25.1/31.4 1126
RS/D2-3GH-48G1.5 48×1.5 7/0.53 2.4 28.1/35.1 1280
RS/D2-3GH-4G2.5 4×2.5 7/0.67 2.0 11.9/14.8 340
RS/D2-3GH-7G2.5 7×2.5 7/0.67 2.0 13.8/17.2 500
RS/D2-3GH-10G2.5 10×2.5 7/0.67 2.0 17.1/21.3 680
RS/D2-3GH-12G2.5 12×2.5 7/0.67 2.0 17.6/22.0 613
RS/D2-3GH-19G2.5 19×2.5 7/0.67 2.0 20.4/25.5 815
RS/D2-3GH-27G2.5 27×2.5 7/0.67 2.2 24.6/30.7 1200
RS/D2-3GH-37G2.5 37×2.5 7/0.67 2.4 27.8/34.7 1600
RS/D2-3GH-48G2.5 48×2.5 7/0.67 2.6 31.2/39.0 1960

Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information