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

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