Concentric cables are widely used in low-voltage electrical distribution systems due to their durability, safety, and stable performance. As a trusted concentric cable manufacturer, HNBFpower provides top-quality cables that meet international standards for both residential and industrial power distribution. Designed for long service life, these cables offer excellent mechanical strength and electrical conductivity.


What Is a Concentric Cable?

A concentric cable consists of a central conductor surrounded by one or more layers of helically wound wires. These outer layers often serve as neutral or earth conductors, providing additional safety and stability to the electrical circuit. The design ensures uniform current distribution and strong resistance to electromagnetic interference.


Materials and Construction

At HNBFpower, every concentric cable is manufactured using premium materials and strict quality controls.

1. Conductor Material:

  • High-purity copper or aluminum conductors ensure superior conductivity and minimal power loss.

  • The central conductor is usually solid or stranded, depending on flexibility requirements.

2. Insulation:

  • Cross-linked polyethylene (XLPE) or PVC insulation provides excellent thermal and mechanical properties.

  • These materials resist heat, chemicals, and moisture, ensuring consistent performance in harsh environments.

3. Outer Neutral/Screen:

  • The concentric layer of wires (usually copper or aluminum) acts as a return path or grounding conductor.

  • This layer enhances electrical safety by preventing voltage imbalances.

4. Outer Sheath:

  • The external PVC or polyethylene sheath protects the inner components from mechanical damage and corrosion.

Specifications

Typical concentric cable specifications offered by HNBFpower include:

  • Voltage Rating: 600/1000V

  • Conductor Size: 10 mm² to 500 mm²

  • Conductor Type: Copper or Aluminum

  • Insulation: PVC / XLPE

  • Temperature Rating: Up to 90°C continuous operation

  • Standards Compliance: IEC, BS, ASTM, and other international standards

Customized sizes and designs are also available to meet specific project requirements.

Key Advantages of HNBFpower Concentric Cables

  • Excellent Electrical Stability: Uniform conductor arrangement minimizes energy loss.

  • Enhanced Safety: Grounding layer reduces risk of electric shock.

  • Durable and Weather-Resistant: Outer sheath ensures protection from UV, moisture, and mechanical stress.

  • Easy Installation: Flexible and lightweight design allows simple handling and laying.

  • Cost-Effective Solution: Long lifespan reduces maintenance and replacement costs.

  • Customizable Options: Available in multiple conductor materials and insulation types.

Comparison: Concentric Cable vs. Conventional Power Cable

Feature Concentric Cable Conventional Power Cable
Grounding System Built-in concentric layer Separate ground wire
Electrical Balance High stability May cause interference
Safety Excellent earthing Dependent on installation
Maintenance Low Moderate
Flexibility Higher Limited

Concentric cables offer an integrated design that ensures better safety and simplified installation compared to traditional power cables.


Applications

  • Urban and rural power distribution networks

  • Industrial power systems

  • Street lighting circuits

  • Renewable energy installations

  • Residential electrical connections

How to Buy from HNBFpower

Purchasing concentric cables from HNBFpower is straightforward. Customers can specify their required voltage, conductor size, and insulation type. The technical team provides expert assistance in selecting the most suitable cable for your project. Bulk and OEM orders are available with global shipping support.

Buying Steps:

  1. Identify your voltage and current requirements.

  2. Choose between copper or aluminum conductors.

  3. Select insulation type (PVC or XLPE).

  4. Contact HNBFpower for a quotation and technical datasheet.

  5. Confirm order and delivery schedule.

Conclusion

HNBFpower stands as a reliable manufacturer of concentric cables, known for delivering quality, durability, and performance. Each cable is crafted using advanced manufacturing techniques and premium materials to ensure safe and efficient power transmission. Whether you’re upgrading a distribution network or planning a new installation, HNBFpower concentric cables provide the perfect balance of safety, performance, and cost efficiency.