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The CU/XLPE/ CWS/PVC single-core power cable 12/20kV manufactured by Zhongdong Cable is designed in accordance with IEC 60502-2 and IEC 60228 (Class 1 or Class 2 copper conductor). It features a high-conductivity copper conductor, XLPE insulation, copper wire screen ( CWS), and a PVC outer sheath, ensuring strong electrical performance for medium-voltage networks.
The combined screening structure provides better mechanical strength and fault current capacity compared with single-layer screening, making it suitable for more demanding MV distribution systems.
The unarmoured design allows flexible installation in ducts, trenches, and conduits with proper external protection.
|
Type |
Unarmoured Medium Voltage Power Cable |
Voltage Rating |
12/20 kV |
|
Cores |
1 Core |
Conductor |
Copper, Class 1 / Class 2 (IEC 60228) |
|
Insulation |
XLPE (Cross-linked Polyethylene) |
Screen |
Copper Wire Screen |
|
Sheath |
PVC ST2 |
Standards |
IEC 60502-2 / IEC 60228 |
|
Cross Reference |
YJSV / N2XSY |
|
|
Conductor: Plain annealed copper conductor (Class 1 or 2)
Conductor Screen: Semi-conductive layer for electric field control
Insulation: XLPE with high thermal resistance and dielectric strength
Insulation Screen: Semi-conductive layer for uniform field distribution
Metallic Screen: Copper wire screen for enhanced fault current handling
Bedding: Semi-conductive / protective layer as required
Outer Sheath: PVC (ST2), resistant to moisture and mechanical stress
Design: Single-core, unarmoured medium voltage cable (12/20 kV)
The 12/20kV CU/XLPE cable with CWS screen is used in medium-voltage systems where higher electrical stress, stronger fault level requirements, and improved grounding performance are needed. The combined screening system enhances safety and system stability under demanding operating conditions.
Typical applications include:
Primary distribution networks in urban substations
Ring main unit (RMU) and switchgear connections
Industrial power plants with high fault current levels
Data centers and critical infrastructure power supply systems
Renewable energy grid connection (solar/wind substations)
Underground cable networks with high reliability requirements
Heavy-load industrial zones and utility backbone feeders
IEC: IEC 60502-2 / IEC 60228 / IEC 60332-1 / IEC 60332-3 / IEC 60754-1 / IEC 60754-2 / IEC 61034
DIN VDE: DIN VDE 0276-620
BS: BS 6622 / BS 7835
NF: NF C 33-220
AS/NZS: AS/NZS 1429.1
ASTM: ASTM B3 / ASTM B8
|
No. of cores and nominal cross section |
Thickness of insulation |
Cross section of screen |
Thickness of sheath |
Approx. overall diameter |
Approx. weight |
Max. DC resistance of conductor（20℃） |
|
(mm2) |
(mm) |
(mm2) |
(mm) |
(mm) |
(kg/km) |
(Ω/km) |
|
1x35/16 |
5.5 |
16 |
1.8 |
26.86 |
989 |
0.524 |
|
1x50/16 |
5.5 |
16 |
1.8 |
28.16 |
1136 |
0.387 |
|
1x70/16 |
5.5 |
16 |
1.9 |
30.06 |
1385 |
0.268 |
|
1x95/16 |
5.5 |
16 |
1.9 |
31.66 |
1664 |
0.193 |
|
1x120/16 |
5.5 |
16 |
2.0 |
33.26 |
1939 |
0.153 |
|
1x150/25 |
5.5 |
25 |
2.0 |
34.76 |
2304 |
0.124 |
|
1x185/25 |
5.5 |
25 |
2.1 |
36.66 |
2703 |
0.0991 |
|
1x240/25 |
5.5 |
25 |
2.1 |
38.86 |
3270 |
0.0754 |
|
1x300/25 |
5.5 |
25 |
2.2 |
41.26 |
3884 |
0.0601 |
|
1x400/35 |
5.5 |
35 |
2.3 |
44.46 |
4826 |
0.0470 |
|
1x500/35 |
5.5 |
35 |
2.4 |
47.56 |
5913 |
0.0366 |
The CTS & CWS combination improves both electric field control and fault current capability, making the cable more stable under high fault level conditions.
It is used in higher voltage primary distribution systems, such as substations, RMU connections, and industrial grids with higher load demand.
Yes. The combined metallic screen enhances grounding effectiveness and reduces electrical stress concentration, improving overall system safety.
Yes. It is suitable for duct and trench installations where mechanical protection is provided externally.
Proper earthing of the metallic screen system is essential to ensure safe operation and effective fault current discharge in MV networks.
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Steel-Wooden Hybrid Drums (Iron-Wooden Axle): Engineered with reinforced steel structural frames and durable wood flanging. This hybrid design prevents drum collapse under heavy loads and provides ultimate mechanical protection during rough ocean freight handling.
100% Customized Packaging: We cooperate closely with project engineers to provide tailored packing options—including custom cable lengths per drum, protective lagging, water-proof plastic wrapping, or specific color coding—tailored to your exact on-site installation layout.
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