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ZCO3 & ZCO3-SH Main Signalling Cables
(AC Electrifi ed High Speed Lines)
Application
The 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.
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 |