Railway Cables

RT/F3 D & S & B type Axle Counter Cable

Application

The cables are designed for transmission of signals up to 90 kHz in axle counter train detection systems.

Standards

● RT/E/PS/00031

Construction

Conductors
Tinned copper, 0.9/1.4 mm nominal diameter.

Insulation
Solid polyethylene.

Cabling Element
Two insulated conductors are twisted together to form a pair.

Stranding
Pairs are helically stranded in concentric layers.

Filling
Cable core interstices are filled with a low-permitivity compound. Unfi lled cables option can be offered upon request.

Core Wrapping
Plastic tape(s) with overlapping.

Moisture Barrier
One laminated sheath made of aluminium tape coated with PECopolymer on at least one side is applied with
longitudinally overlap.

Inner Sheath (for S/B type)
Polyethylene or LSZH fi re retardant compound.

Mechanical Protection (for S/B type)
One corrugated steel tape or brass tape is longitudinally applied with overlap. Unarmoured cables option can be offered upon request.

Outer Sheath
Polyethylene or LSZH fi re retardant compound. Ruggedised PE sheath compound can be offered upon request.

Type Codes

F1 class: Non LSZH cables.
F5 class: Unfi lled cables
D type: Unarmoured types
R type: Ruggedised PE sheath
S type: Steel tape armoured types
B type: Brass tape armoured types
E1, E2 & E3 types: 3 different induction protection levels available.

Electrical Characteristics at 20℃

Nominal Conductor Diameter

mm

0.9

1.4

Nominal Conductor Cross Section
mm²

0.63

1.5

Maximum Conductor Resistance
Ω/km

30.0

12.5

Minimum Insulation Resistance @500 V DC (1min)
MΩ.km

5000

5000

Nominal Conductor Capacitance @800Hz/1000Hz (AC)
nF/km

42+3

47+3

Dielectric Strength, conductor to screen (DC voltage 2mins)
V

3000

3000

Maximum Average Attenuation

 

 

@1.0KHz
dB/km

0.73

0.45

@2.4KHz
dB/km

1.10

0.62

@40KHz
dB/km

2.88

1.77

@90KHz
dB/km

3.70

2.41

@1.024MHz
dB/km

11.2

7.45

Minimum Average Near-end Crosstalk

 

 

@1.0KHz
dB/km

60

60

@2.4KHz
dB/km

60

60

@40KHz
dB/km

50

50

@90KHz
dB/km

50

50

@1.024MHz
dB/km

35

35

Mechanical and Thermal Properties

Minimum Bending Radius: 7.5×OD (unarmoured); 10×OD (armoured)
Temperature Range: -30℃ to +60℃ (during operation); -10℃ to +60℃ (during installation)

Core Identification

Pair Number
A Wire
B Wire
Pair Number
A Wire
B Wire
1
WHITE
BLUE
13
YELLOW
GREEN
2
WHITE
ORANGE
14
YELLOW
BROWN
3
WHITE
GREEN
15
YELLOW
GREY
4
WHITE
BROWN
16
VIOLET
BLUE
5
WHITE
GREY
17
VIOLET
ORANGE
6
RED
BLUE
18
VIOLET
GREEN
7
RED
ORANGE
19
VIOLET
BROWN
8
RED
GREEN
20
VIOLET
GREY
9
RED
BROWN
21
TURQUOISE
BLUE
10
RED
GREY
22
TURQUOISE
ORANGE
11
YELLOW
BLUE
23
TURQUOISE
GREEN
12
YELLOW
ORANGE
24
TURQUOISE
BROWN

Two pair cables laid up in quad formation colour coded in rotation, Orange, White, Green, Black

Dimensions And Weight

A-2Y(F)(L)2Y n×2×0.9/1.4 Cables

Cable Code

 

Number of Pairs
(n)
Nominal Sheath Thickness
mm
Maximum Overall
Diameter
mm
Nominal Weight
kg/km

0.9mm Conductor, 1.55mm Insulated Wire

RS/RT/F3-D-2Y(F)(L)2Y-2P0.9

2

2.4

13.2

210

RS/RT/F3-D-2Y(F)(L)2Y-10P0.9

10

2.4

21.6

530

RS/RT/F3-D-2Y(F)(L)2Y-12P0.9

12

2.4

24.8

580

RS/RT/F3-D-2Y(F)(L)2Y-19P0.9

19

2.4

31.2

800

RS/RT/F3-D-2Y(F)(L)2Y-24P0.9

24

2.4

33.8

980

1.4mm Conductor, 2.2mm Insulated Wire

RS/RT/F3-D-2Y(F)(L)2Y-2P1.4

2

2.4

23.4

320

RS/RT/F3-D-2Y(F)(L)2Y-10P1.4

10

2.4

30.0

910

RS/RT/F3-D-2Y(F)(L)2Y-12P1.4

12

2.4

32.0

1101

RS/RT/F3-D-2Y(F)(L)2Y-19P1.4

19

2.4

37.3

1450

RS/RT/F3-D-2Y(F)(L)2Y-24P1.4

24

2.4

42.3

1780

A-2Y(L)2YB2Y n×2×0.9/1.4 Cables

Cable Code

Number of
Pairs
(n)
Nominal Sheath Thickness
mm
Maximum Overall
Diameter
mm
Nominal Weight
kg/km

0.9mm Conductor, 1.8mm Insulated Wire

RS/RT/F3-S-2Y(L)2YB2Y-2P0.9

2

2.2

2.4

22.0

399

RS/RT/F3-S-2Y(L)2YB2Y-10P0.9

10

2.2

2.4

30.4

880

RS/RT/F3-S-2Y(L)2YB2Y-12P0.9

12

2.2

2.4

33.6

963

RS/RT/F3-S-2Y(L)2YB2Y-19P0.9

19

2.2

2.4

40.0

1312

RS/RT/F3-S-2Y(L)2YB2Y-24P0.9

24

2.2

2.4

42.6

1626

1.4mm Conductor , 2.7mm Insulated Wire

RS/RT/F3-S-2Y(L)2YB2Y-2P1.4

2

2.2

2.4

32.2

608

RS/RT/F3-S-2Y(L)2YB2Y-10P1.4

10

2.2

2.4

38.8

1510

RS/RT/F3-S-2Y(L)2YB2Y-12P1.4

12

2.2

2.4

40.8

1827

RS/RT/F3-S-2Y(L)2YB2Y-19P1.4

19

2.2

2.4

46.1

2380

RS/RT/F3-S-2Y(L)2YB2Y-24P1.4

24

2.2

2.4

51.1

2954