CU/XLPE/CWS/STA/PVC Three Core Power Cable 18/30kV

CU/XLPE/CWS/STA/PVC Three Core Power Cable 18/30kV

The CU/XLPE/CWS/STA/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 copper conductor). It combines copper conductors, XLPE insulation, copper wire screen (CWS), steel tape armour (STA), and PVC sheath, providing a stable and cost-effective solution for medium-voltage underground networks.

The three-core construction is widely used in balanced three-phase systems, while the STA layer improves resistance to mechanical stress and makes the cable suitable for direct burial and long-term underground use.

Inquire Now +

Contact Information

Submit

Quick Specs

Type	Stainless Steel Tape Armoured Medium Voltage Power Cable	Voltage Rating	18/30 kV
Cores	3 Core	Conductor	Copper, Class 1 / Class 2 (IEC 60228)
Insulation	XLPE (Cross-linked Polyethylene)	Screen	Copper Wire Screen (CWS)
Armour	Stainless Steel Tape Armour (SSTA)	Sheath	PVC ST2
Standards	IEC 60502-2 / IEC 60228	Cross Reference	YJSV62/ N2XSBY Equivalent

Construction

Applications

Standards

FAQ

Construction

Conductor: Stranded copper conductor(Class 1 or Class 2)

Conductor Screen: Semi-conductive layer for electric field control

Insulation: XLPE with high thermal endurance and dielectric strength

Insulation Screen: Semi-conductive layer for uniform stress distribution

Metallic Screen: Copper wire screen (CWS) for fault current return and grounding

Armour: Stainless steel tape armour (SSTA) for mechanical protection and anti-rodent performance

Bedding: Protective layer separating armour from insulation system

Outer Sheath: PVC (ST2), moisture and abrasion resistant

Design: Single-core, SSTA armoured high-voltage MV cable (18/30 kV)

Applications

This 18/30kV 3-core copper STA cable is used in underground MV systems where space, protection, and installation efficiency all matter.

Typical applications:

Urban underground power distribution

Substation feeder and outgoing circuits

Industrial plant power systems

Road and railway crossings

Tunnel and utility corridors

Renewable energy distribution networks

Direct buried trench installations

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

When is a 3-core 18/30kV cable preferred in real projects?

It is usually chosen when trench space is limited and installers want to avoid laying three separate single-core cables.

Does the STA layer change how the cable should be handled on site?

Yes. The cable is stiffer, so it needs careful drum handling and steady pulling during installation.

Can this cable be used in long underground runs?

Yes, but cable route planning is important to avoid too many sharp turns or heavy pulling sections.

What is the key point during trench installation?

The bedding must be even. Uneven ground can create pressure points on the steel tape armour.

Is special equipment needed for installation?

For larger sizes, a cable roller and controlled tension equipment are recommended to avoid sheath damage.

Why do engineers still choose 3-core instead of single-core systems?

It reduces installation complexity and keeps the phase arrangement fixed, especially in compact urban cable corridors.

Why Contact Zhongdong Cable

Direct Factory Since 2006

67,000㎡ Manufacturing Base

0.6kV–110kV Cable Solutions

Reply Within 24 Hours

Contact Information

Submit

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.