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 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