Digicode 30KHz Indoor Signalling Cables
Application
The cables are designed for transmission of track circuit digicode signals up to 30 kHz in electrified lines.
Reference Standards
- EN 50266-2-4 & IEC 60332-3(Fire performance)
- EN 50268-2(Smoke density)
- EN 50267-2-1(Halogen content)
- EN 50267-2-2(Gases acidity)
- EN 50265-2-1, IEC 60332-1, NF C 32070 Cat C2 compliant (for PVC sheathed cables)
Cable Construction
| Conductors |
Solid Annealed copper, 1.4 mm nominal diameter (0.6 mm for the auxiliary pair). |
| Insulation |
Polyethylene. |
| Cabling Element |
Two insulated conductors are twisted together to form a pair. |
| Stranding |
Pairs are helically stranded to get the cable core. |
| Core Wrapping |
Plastic tape(s) with overlapping. |
| Inner Sheath |
Low density polyethylene. |
| Moisture Barrier |
Copolymer coated laminated aluminium tape. |
| Intermediate Sheath |
LSZH fi re retardant compound. PE or PVC option can be offered upon request. |
| Mechanical Protection |
Two helically applied steel tapes. |
| Outer Sheath |
LSZH fi re retardant compound. PE or PVC option can be offered upon request. |
Electrical Characteristics at 20℃
| Nominal Conductor Diameter |
mm |
1.4 |
| Maximum DC Conductor Resistance |
Ω/km |
12.1 |
| Maximum Resistance Unbalance |
% |
3 |
| Minimum Insulation Resistance @500 V DC (1min) |
MΩ.km |
5000 |
| Dielectric Strength (DC voltage 1 min) |
|
|
| Conductor to Conductor |
V |
1000 |
| Conductor to Screen |
V |
3000 |
| Minimum Spark Test On Outer Sheath (AC voltage) |
V |
5000 |
| Maximum Mutual Capacitance (Data pairs) |
nF/km |
45 |
| Nominal Mutual Capacitance (Auxiliary pair) |
nF/km |
50 |
| Maximum Capacitance Unbalance |
|
|
| Pair to Pair |
nF/500m |
400 |
| Pair to Ground |
nF/500m |
1500 |
| Maximum Characteristic Pair Attenuation |
|
|
| @2.1KHz |
dB/km |
0.64 |
| @4.1KHz |
dB/km |
0.76 |
| @9.5KHz |
dB/km |
1.05 |
| @20.7KHz |
dB/km |
1.28 |
| Minimum Near End Crosstalk Attenuation (NEXT) |
|
|
| @4.1KHz |
dB/km |
54 |
| @20.7KHz |
dB/km |
42 |
| Minimum Far End Crosstalk Attenuation (FEXT) |
|
|
| @4.1KHz |
dB/km |
59 |
| @20.7KHz |
dB/km |
48 |
| Minimum Unbalance Attenuation |
dB |
40 |
| Maximum Rated Voltage, between pair conductors |
V rms |
220 |
| Maximum Rated Current |
A rms |
1 |
Mechanical and Thermal Properties
- Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)
- Temperature Range: -40℃ to +60℃ (during operation); -20℃ to +50℃ (during installation)
Dimensions and Weight
| Cable Code |
Number of Pairs |
Nominal Sheath Thickness |
Nominal Overall Diameter |
Nominal Weight |
| Inner |
Interm. |
Outer |
| |
|
mm |
mm |
mm |
mm |
kg/km |
| RS/DIG-2Y2Y(L)HBH-1P1.4 |
1* |
0.7 |
1.3 |
1.5 |
17.9 |
428 |
| RS/DIG-2Y2Y(L)HBH-2P1.4 |
2* |
0.7 |
1.3 |
1.5 |
19.2 |
497 |
| RS/DIG-2Y2Y(L)HBH-3P1.4 |
3 |
0.7 |
1.3 |
1.5 |
20.2 |
562 |
