 |
||||||||||||
 |
Railway Cables |  |
||||||||||
|
||||||||||||
|
||||||||||||
RT/F3 E1/E2/E3 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 wire, 0.9 or 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 fi lled 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 PE-Copolymer on at least one side is applied with longitudinally overlap.
Inner Sheath
Polyethylene or LSZH fi re retardant compound.
Electrostatic Shield
One layer of helically applied copper wires.
Electromagnetic Shield
Two helically applied steel tapes.
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 |
| Maximum Reduction Factor @100V/km,50Hz | |||
| EMI RF 1 (modest level) | 0.65 |
0.65 |
|
| EMI RF 2 (medium level) | 0.45 |
0.45 |
|
| EMI RF 3 (high level) | 0.20 |
0.20 |
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)
Dimensions And Weight
Cable Code |
Number of Pairs |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
Inner |
Outer |
||||
0.9mm Conductor , 1.8mm Insulated Wire |
|||||
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-2P0.9 |
2 |
2.2 |
2.4 |
23.4 |
1300 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-10P0.9 |
10 |
2.2 |
2.4 |
31.8 |
1650 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-12P0.9 |
12 |
2.2 |
2.4 |
35.0 |
1760 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-19P0.9 |
19 |
2.2 |
2.4 |
41.4 |
2275 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-24P0.9 |
24 |
2.2 |
2.4 |
44.0 |
2450 |
1.4mm Conductor, 2.7mm Insulated Wire |
|||||
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-2P1.4 |
2 |
2.2 |
2.4 |
33.6 |
1480 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-10P1.4 |
10 |
2.2 |
2.4 |
40.2 |
2200 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-12P1.4 |
12 |
2.2 |
2.4 |
42.2 |
2325 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-19P1.4 |
19 |
2.2 |
2.4 |
47.5 |
2975 |
RS/RT/F3-S/E3-2Y(F)(L)2YDB2Y-24P1.4 |
24 |
2.2 |
2.4 |
52.5 |
3150 |