AL/XLPE/CWS/PVC Three Core Power Cable 18/30kV

AL/XLPE/CWS/PVC Three Core Power Cable 18/30kV

The AL/XLPE/CWS/PVC three-core power cable 18/30kV manufactured by Zhongdong Cable is designed in accordance with IEC 60502-2 and IEC 60228 (Class 1 or Class 2 aluminium conductor). It adopts an aluminium conductor, XLPE insulation, copper wire screen (CWS), and a PVC outer sheath, providing a cost-effective solution for high-voltage medium distribution networks.

The copper wire screen enhances fault current capacity and grounding performance, making the cable suitable for higher voltage stress conditions and stable long-term operation in demanding power systems.

The unarmoured structure is suitable for installation in ducts, trenches, and conduits with external mechanical protection.

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Quick Specs

Type	Unarmoured Medium Voltage Power Cable	Voltage Rating	18/30 kV
Cores	3 Core	Conductor	Aluminium, 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	YJLSV/NA2XSEY

Construction

Applications

Standards

FAQ

Construction

Conductor: Stranded aluminium 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 (18/30 kV)

Applications

The 18/30kV aluminium conductor three-core cable with CWS screen is designed for higher medium-voltage distribution systems where stronger electrical stress control and fault current handling are required. It is commonly used in backbone power networks and heavy-duty industrial grids.

Typical applications include:

High-voltage primary distribution substations

Utility transmission and regional grid backbone systems

Large industrial plants with high load demand

Mining and metallurgical power distribution systems

Renewable energy step-up substations (wind/solar)

Urban infrastructure requiring high-capacity feeders

Underground MV trunk cable networks

Standards

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

FAQ

Why is CWS used in 18/30kV cables instead of copper tape screen?

Copper wire screen provides better fault current carrying capability and mechanical robustness, making it suitable for higher voltage levels and demanding power systems.

What makes 18/30kV cables different from 12/20kV cables?

18/30kV cables are designed for higher system voltage levels and are typically used in backbone distribution and high-capacity transmission networks.

Is this cable suitable for long-distance underground installation?

Yes. It is commonly used in underground trunk lines where stable electrical performance and strong grounding are required.

Does aluminium conductor affect high-voltage performance?

No. When properly designed to IEC standards, aluminium conductors perform reliably even in high-voltage MV systems.

Why is screen grounding important in this cable type?

Proper grounding of the CWS ensures safe fault current discharge and maintains stable electric field distribution during operation.

Why Contact Zhongdong Cable

Direct Factory Since 2006

67,000㎡ Manufacturing Base

0.6kV–110kV Cable Solutions

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Packaging

Fumigated Wooden Drums: Fully heat-treated and officially stamped in strict compliance with ISPM 15 international phytosanitary regulations. This guarantees seamless, delay-free customs clearance at any global port.

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.