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ZCO3 & ZCO3-SH Main Signalling Cables (AC Electrifi ed High Speed Lines)

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