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

Application

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