Railway Cables

300V DC Negative Traction Cables

Application

These DC power cables are used for urban railways for 1500V DC traction power system with feedback current and return current, suitable for fixed installation. The cables are suitable for installations in ducts, tunnels, and cable troughs or on the cable bridges etc.

Standards

● IEC60092
● BS 7655
● IEC60502
● BS 6883 Type 657 SW4

Construction

Conductors
Class 2 stranded annealed bare copper conductors to BS EN 60228: 2005 (previously BS 6360).

Core Wrapping
PETP (Polyethylene Terephthalate).

Sheath
Thermosetting LSZH compound SW4 or LRS1 to BS 7655 / ICEA T-33-655 with enhanced oil resistance, and minimum tear resistance.

Electrical Characteristics at 20℃

Nominal Conductor Cross Section
mm²
70
95
120
150
185
240
300
400
500
Maximum DC Conductor Resistance
Ω/km
0.277
0.21
0.164
0.132
0.108
0.0817
0.0654
0.0495
0.0391
Minimum Insulation Resistance
MΩ.km
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
Conductor Short Circuit Current 1s
kA
10.0
13.5
17.1
21.4
16.4
34.3
42.9
57.2
71.5
Voltage Rating
KV
0.3

Mechanical and Thermal Properties

Minimum Bending Radius: 6×OD
Temperature Range:-40℃ to +90℃ (during operation); -25℃ to +60℃ (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
Insulation
Thickness
mm
Nominal
Overall
Diameter
mm
Nominal
Weight
kg/km
Polarity

RF6883-ES05Z1-U-300N-1G70

1×70

19/2.14

4.0

19.4

1055

Negative

RF6883-ES05Z1-U-300N-1G95

1×95

19/2.52

4.0

20.7

1307

Negative

RF6883-ES05Z1-U-300N-1G120

1×120

37/2.03

4.0

22.6

1598

Negative

RF6883-ES05Z1-U-300N-1G150

1×150

37/2.25

4.0

24.3

1913

Negative

RF6883-ES05Z1-U-300N-1G185

1×185

37/2.52

4.0

26.3

2274

Negative

RF6883-ES05Z1-U-300N-1G240

1×240

61/2.25

4.0

29.1

2893

Negative

RF6883-ES05Z1-U-300N-1G300

1×300

61/2.52

4.0

32.3

3530

Negative

RF6883-ES05Z1-U-300N-1G400

1×400

61/2.85

4.0

36.3

4532

Negative

RF6883-ES05Z1-U-300N-1G500

1×500

91/2.65

4.0

40.3

5684

Negative

RF6883-ES05Z1-U-300N-1G630

1×630

127/2.52

4.0

42.3

6400

Negative

RF6883-ES05Z1-U-300N-1G800

1×800

127/2.85

4.0

46.5

8094

Negative