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.

Standard

  • RT/E/PS/00031

Cable Construction

RT-F3
  • 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 PE Copolymer 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

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