Railway Cables

 TYPE D1 & D2 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 installation in ducts.

Standards

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

Construction

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