MV PVC/SWA/PVC 35mm2 Copper Cable 600/1000V – Armoured Power Cable Structure and Applications

The PVC/SWA/PVC 35mm² copper cable (600/1000V) is a widely used medium voltage armoured power cable, designed for underground installation, industrial power distribution, and heavy-duty environments.

With its steel wire armouring (SWA) and robust multi-layer structure, this cable provides excellent mechanical protection, electrical insulation, and long-term reliability.

1. Product Overview

This cable features:

• Copper conductor (35mm²)

• XLPE insulation for high electrical performance

• Steel wire armouring (SWA) for mechanical strength

• PVC inner and outer sheath for protection

Suitable for 600/1000V power transmission in industrial and infrastructure projects.

2. Cable Structure (From Inside to Outside)

1. Conductor (Copper Core)

The innermost part is the copper conductor, usually made of stranded copper wires.

Function:

• Carries electrical current

• Provides high conductivity and efficiency

2. XLPE Insulation

Each conductor is covered with XLPE (Cross-Linked Polyethylene) insulation.

Function:

• Main electrical insulation layer

• High temperature resistance

• Excellent dielectric performance

Often color-coded (Red / Yellow / Blue for phases)

3. Filler

The spaces between cores are filled with filler material.

Function:

• Maintains round cable shape

• Absorbs mechanical stress

• Improves structural stability

4. Inner Binding Tape

A binding tape (inner layer) wraps the insulated cores.

Function:

• Fixes the core structure

• Separates insulation from inner sheath

5. PVC Inner Sheath

A PVC inner sheath surrounds the core assembly.

Function:

• Protects insulated cores

• Provides moisture and corrosion resistance

• Separates conductor from armour layer

6. Steel Wire Armour (SWA)

The cable includes a steel wire armouring layer.

Function:

• Provides high mechanical strength

• Protects against:

• Crushing

• Impact

• Tensile stress

• Suitable for:

• Direct burial

• Heavy-duty installations

7. Outer Binding Tape

A binding tape over the armour layer.

Function:

• Stabilizes the armour structure

• Prevents damage to outer sheath

8. PVC Outer Sheath

The outermost layer is the PVC outer sheath.

Function:

• Protects against:

• Corrosion

• Moisture

• Environmental damage

• Provides additional insulation

Usually black color for outdoor use

3. Key Advantages

1. Strong Mechanical Protection

Steel wire armour ensures:

• Resistance to external pressure

• Protection in underground and harsh environments

2. Excellent Electrical Performance

• XLPE insulation provides high dielectric strength

• Stable operation at 600/1000V

3. Moisture and Corrosion Resistance

• PVC sheath protects against environmental damage

• Suitable for underground and outdoor use

4. Long Service Life

• Durable structure ensures long-term reliability

• Minimal maintenance required

4. Typical Applications

This cable is widely used in:

• Underground power distribution

• Industrial plants and factories

• Construction and infrastructure projects

• Cable trays and ducts

• Direct burial installations

5. Simple Understanding (For Customers)

You can explain to customers like this:

This cable has multiple protective layers:

• Inside: copper carries electricity

• Middle: insulation keeps electricity safe

• Armour: steel protects against damage

• Outside: PVC protects from environment

✔ Result: Strong, safe, and durable cable for heavy-duty use

6. Conclusion

The PVC/SWA/PVC 35mm² copper cable (600/1000V) is a reliable and heavy-duty armoured power cable, designed for industrial and underground applications.

With its copper conductor, XLPE insulation, steel wire armour, and PVC protective layers, it offers:

• High mechanical strength

• Excellent electrical insulation

• Long-lasting performance

 Ideal for projects requiring safe, durable, and high-performance power transmission.