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ZCO3 & ZCO3-SH Main Signalling Cables
(AC Electrifi ed High Speed Lines)
Application
ZCO3 & ZCO3-SH Main Signalling Cables are designed for connection between traffi c control centers and
equipment shelters along the trackside. The cables are specially designed to give good induction protection
(R.F=0.21 at inductive voltage 100V/km) and are suitable for installation in high speed railway lines electrifi ed at
25KV ac.
Reference Standards
SNCF CT 445
NF F 55-698
Construction
Conductors: Solid annealed copper, 1.0 mm² nominal cross section area.
Insulation: Solid polyethylene.
Cabling Element: Four conductors are twisted to form a quad.
Stranding: Quads are helically stranded to get the cable core.
Core Wrapping: Plastic tape(s) with overlapping.
Inner Sheath: Low density polyethylene. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).
Electrostatic Shield: Corrugated copper tape.
Intermediate Sheath: Low density polyethylene. LSZH FR option can be offered upon request to NF C 32 070.2.2
(C1).
Electromagnetic Shield: Two helically applied steel tapes (0.5mm).
Outer Sheath: PE/PVC compound. LSZH FR option can be offered upon request to NF C 32 070.2.2 (C1).
Remarks: ZCO3: PE/PVC Sheath; ZCO3-SH: LSZH Sheath.
Electrical Characteristics at 20℃
| Nominal Conductor Diameter | mm |
1.13 |
|---|---|---|
| Nominal Cross Section Area | mm² |
1.0 |
| Maximum Conductor Resistance (DC) | Ω/km |
18.1 |
| Minimum Insulation Resistance @500 V DC (3mins) | MΩ.km |
5000 |
| Maximum Mutual Capacitance @1000Hz (AC) | nF/km |
40 |
| Maximum Capacitance Unbalance @800Hz | pF/500m |
400 |
| Dielectric Strength, conductor to conductor (DC voltage 3mins) | V |
4500 |
| Operating Voltage AC/DC | V |
450/750 |
Reduction Factor
| Inductive voltage(V/km) | 50 |
70 |
100 |
370 |
400 |
470 |
|---|---|---|---|---|---|---|
| Reduction factor @50Hz | 0.42 |
0.30 |
0.20 |
0.16 |
0.18 |
0.31 |
Mechanical and Thermal Properties
Minimum Bending Radius: 8×OD (static); 16×OD (dynamic)
Temperature Range: -40℃ to +70℃ (during operation);
-20℃ to +50℃ (during installation)
Dimensions And Weight
Cable Code |
No. of Pairs |
Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
||
|---|---|---|---|---|---|---|
Inner |
Interm. |
Outer |
||||
| 1.13mm Conductor, 2.33 Insulated Wire | ||||||
| RS/ZCO3-2Y2Y(K)2YB2Y-2Q1S | 2 | 0.8 | 1.0 |
1.6 | 27.0 | 1295 |
| RS/ZCO3-2Y2Y(K)2YB2Y-4Q1S | 4 | 0.8 | 1.0 |
1.6 | 29.5 | 1490 |
Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information