Wires and Cables
Concentric Cable
Experience unparalleled security and efficiency with advanced Concentric Cables. Meticulously engineered for critical service entrance and distribution, these cables are the definitive choice for environments demanding enhanced protection against unauthorized access and tampering. Our Concentric Cables feature a robust design: a precisely centered phase conductor enveloped by a concentric neutral, all fortified within a high-integrity outer sheath. This ingenious construction inherently provides superior mechanical integrity, exceptional tamper deterrence, and enhanced operational safety. Insulated with premium XLPE or PVC, they ensure unwavering power reliability while offering a compact, enduring, and remarkably secure solution for modern electrical infrastructure.
CONCENTRIC CABLE
NPC Electric Concentric Cable is designed with a central phase conductor surrounded by an evenly distributed concentric neutral conductor, providing a stable electrical return path and enhanced system safety. The concentric construction ensures uniform current distribution, reduces electromagnetic interference, and improves grounding reliability. High-purity copper or aluminum conductors are combined with durable insulation materials that offer excellent resistance to moisture, heat, and environmental stress. This cable structure is widely used in low-voltage power distribution, where mechanical protection and electrical stability are critical. The concentric neutral layer also enhances fault current handling and minimizes voltage drop during operation. With strong mechanical strength, long service life, and consistent electrical performance, concentric cables are suitable for underground installation and utility networks requiring dependable power delivery.
8000 Aluminum Alloy Concentric Flat LV CABLE
The 8000 Aluminum Alloy Concentric Flat LV Cable is a high-performance, low-voltage service entrance cable designed for reliable power delivery from the distribution network to the meter panel. Manufactured with compact stranded AA-8000 series aluminum alloy phase conductors and concentric neutral, it offers superior flexibility, high conductivity, and excellent mechanical strength compared to traditional aluminum cables. XLPE insulation provides outstanding electrical properties and sunlight resistance, while the flat concentric construction ensures easy installation in tight spaces. Rated 600V or below, this cable meets UL 854, ASTM B800, and related standards. The 8000 Aluminum Alloy Concentric Flat LV Cable undergoes rigorous quality testing from raw materials to finished product, guaranteeing long-term durability, low sag, and reliable performance in wet, dry, or direct burial applications.
AA8000 Aluminum Alloy Round Concentric LV Cable
Engineered for modern low-voltage applications, the 8000 Aluminum Alloy Concentric Round LV Cable utilizes advanced AA-8000 series aluminum alloy conductors for enhanced flexibility and mechanical strength. The round concentric design, featuring phase conductors surrounded by a neutral layer, provides balanced electrical performance and easy pulling through conduits. XLPE insulation ensures excellent thermal and electrical properties with sunlight and moisture resistance. Rated for 600V/1000V service, this cable is perfect for residential and commercial service entrance from the transformer to the meter panel. Compliant with UL 854 and ASTM standards, the 8000 Aluminum Alloy Concentric Round LV Cable undergoes extensive quality testing to guarantee consistent performance, low resistance, and long-term reliability in wet, dry, or buried environments.
Airdac SNE & CNE Concentric Cable
The Airdac SNE & CNE Concentric Cable is a robust low-voltage aerial service connection cable designed for reliable house service from the distribution network to the consumer meter. It features a circular stranded hard-drawn copper phase conductor insulated with XLPE, surrounded by concentrically arranged neutral and earth conductors, and protected by a black polyethylene sheath. The SNE version provides separate neutral and earth conductors, while the CNE version combines them for simplified earthing. With a nylon ripcord for easy stripping and UV-stabilized materials, this cable offers excellent mechanical strength, electrical performance, and long-term durability. Manufactured to SANS 1507-6 and related standards, the Airdac SNE & CNE Concentric Cable undergoes rigorous quality testing from raw materials to finished product, ensuring safe, tamper-resistant, and vandal-proof performance in overhead or underground installations.
USEB-90 AA8000 Concentric Underground Service Cable 600/1000V
The USEB-90 Underground Concentric Service Cable is an advanced low-voltage cable engineered for underground service entrance and secondary distribution systems. It utilizes compact AA8000 aluminum alloy phase conductors with XLPE insulation and a concentrically arranged neutral layer, protected by a durable polyethylene sheath. This design offers superior flexibility, high current-carrying capacity, excellent mechanical protection, and outstanding resistance to moisture and corrosion. Suitable for direct burial without additional conduit, the USEB-90 Underground Concentric Service Cable simplifies installation while ensuring long-term reliability. It meets international performance requirements and undergoes extensive quality testing to deliver consistent electrical performance and durability in demanding underground environments.
Copper Concentric Flat LV Cable 600/1000V
The Copper Concentric Flat LV Cable is engineered for safe and efficient low-voltage power delivery in residential and commercial applications. It consists of a stranded hard-drawn copper phase conductor with XLPE insulation, concentrically arranged copper neutral conductors, and a durable black polyethylene outer sheath. The flat design offers superior flexibility for easy installation in limited spaces while maintaining excellent electrical balance and mechanical protection. With high conductivity and UV-stabilized materials, this cable performs reliably in both overhead aerial and underground environments. The Copper Concentric Flat LV Cable meets international performance standards and undergoes extensive quality testing to ensure consistent performance, safety, and long service life for modern LV networks.
Copper Concentric Round LV Cable
The Copper Concentric Round LV Cable is a high-performance low-voltage cable designed for reliable power delivery in residential and commercial service entrance applications. It features a stranded hard-drawn copper phase conductor with XLPE insulation, surrounded by concentrically arranged copper neutral conductors, and protected by a durable black polyethylene sheath. The round configuration ensures excellent flexibility, easy pulling through conduits, and balanced electrical performance. With superior conductivity, mechanical strength, and weather resistance, this cable is suitable for both aerial and underground installations. Manufactured to international standards, the Copper Concentric Round LV Cable undergoes rigorous quality testing from raw materials to finished product, guaranteeing consistent electrical performance, high safety, and long-term durability for modern LV networks.
15kV Concentric Neutral Power Cable
The 15kV Concentric Neutral Power Cable is a premium medium-voltage underground distribution cable designed for reliable primary power delivery in distribution networks. It features a stranded copper or aluminum conductor, extruded semi-conducting conductor shield, TR-XLPE or EPR insulation, semi-conducting insulation shield, and helically applied bare copper concentric neutral wires, all protected by a tough sunlight-resistant LLDPE jacket. Available in 100% or 133% insulation levels with full or reduced neutral, this cable provides excellent electrical performance, moisture resistance, and mechanical protection. Suitable for direct burial or duct installations, the 15 kV Concentric Neutral Power Cable meets ICEA S-94-649, AEIC CS8, and related standards. It undergoes rigorous quality testing from raw materials to finished product, ensuring long-term reliability, low dielectric loss, and high resistance to water treeing in demanding underground environments.
25kV Concentric Neutral Underground Power Cable
The 25 kV Concentric Neutral Power Cable is a high-performance medium-voltage underground cable designed for primary distribution systems. It features a stranded conductor, semi-conducting shields, tree-retardant TR-XLPE or EPR insulation, helically applied bare copper concentric neutral wires, and a sunlight-resistant LLDPE jacket. This construction provides excellent electrical performance, superior resistance to water treeing, and robust mechanical protection suitable for direct burial or duct installations. Available in various conductor sizes and insulation levels, the cable ensures safe and efficient power delivery. Manufactured to the latest ICEA S-94-649 and AEIC CS8 standards, the 25 kV Concentric Neutral Power Cable undergoes extensive quality testing to deliver consistent low dielectric loss and long service life in demanding underground environments.In-Depth Analysis
Concentric Cable are built to deliver high efficiency, reliable performance, and advanced safety, helping businesses reduce energy costs while ensuring stable power supply. With future-ready adaptability for renewable energy and smart grid applications, they provide a sustainable and innovative solution for today’s and tomorrow’s power needs.
Comparative Analysis of Efficiency and Loss
Compared to the industry average, NPC Concentric Cable exhibit lower losses and higher efficiency across the entire load range.
Load Efficiency Comparison(%)
No-load Loss Comparison(W)
High Conductivity Design
High-purity oxygen-free copper or high-quality aluminum conductors are used with smooth surface and low resistance to ensure efficient power transmission and reduce energy loss.
Improved Conductivity
+20%
Reduced Energy Loss
-15%
Insulation Protection System
Use flame-retardant, wear-resistant and corrosion-resistant polymer insulation materials to meet the safe operation requirements in different environments.
Withstand Voltage Level
≥1kV
Flame Retardant Grade
VW-1 / IEC 60332-3
Weather-Resistant & Durable Technology
The outer sheath is made of UV-resistant, heat-resistant, and oil-resistant materials, making it suitable for high and low temperatures, humidity, and long-term outdoor use.
Service Life
≥ 25 Years
Operating Temperature Range
-40°C to +90°C
Safe Flame Retardant System
The multi-layered flame-retardant structure effectively slows the spread of flames and releases low-smoke, halogen-free gases during combustion, reducing secondary hazards.
Flame Retardant Performance
IEC 60332 / UL 1581 Qualified
Smoke Density
Low Smoke ≤50%
Easy Installation & Maintenance
The flexible core and flex-resistant outer sheath provide a small bend radius and high installation efficiency. Color coding and length markings reduce installation and maintenance costs.
Bend Radius
≤6D
Installation Efficiency Improvement
+30%
Intelligent Monitoring
An optional remote monitoring system is available to monitor operating status, temperature, load and other parameters in real time, and supports fault warning and remote diagnosis.
Data Collection Frequency
one times a minute
Fault Warning Accuracy
98%
Environmental Adaptability Analysis
NPC Concentric Cable have been rigorously tested and can operate stably under various harsh environmental conditions.
Temperature Range
-40℃ ~ +55℃
Can work normally in extreme high and low temperature environments
Humidity Adaptation
0 ~ 100% RH
Including condensation environment, no frost requirement
Weather Resistance Grade
UV/IEC 60811-501
The outer sheath has excellent UV resistance and aging resistance
Chemical Corrosion Resistance
Oil / Acid / Alkali
Resistant to oil, acid, alkali and some chemical corrosion environments
Why Choose Us
With 30 years of expertise, global certifications, and advanced manufacturing technology, NPC Electric delivers reliable, high-performance concentric cable trusted by industries worldwide.
Unrivaled Security & Tamper Deterrence
Our concentric cables are specifically engineered to offer unrivaled security, making them the superior choice for service entrance and distribution applications where tamper deterrence is critical. The unique concentric design, with its uniformly distributed neutral conductor surrounding the phase core, significantly complicates any unauthorized attempts at power diversion or tampering. This inherent anti-theft construction not only protects against illegal connections but also safeguards the integrity of your electrical network. By choosing our cables, you invest in a secure power solution that actively minimizes revenue loss and enhances the overall security of your power distribution infrastructure.
Enhanced Safety & Robust Protection
Safety is paramount, and our concentric cables deliver enhanced protection for both personnel and property. The robust outer sheath and the concentric neutral conductor provide superior mechanical strength, guarding against accidental damage during installation or from external impacts. This design also offers an additional layer of safety by ensuring immediate fault detection in case of insulation compromise. Manufactured with premium XLPE or PVC insulation, our cables exhibit excellent resistance to abrasion, moisture, and environmental stresses, ensuring long-term operational integrity. Choose our safe power cables for resilient and protected underground and aerial service applications.
Optimal Performance & Compact Design
Our concentric cables are meticulously designed for optimal electrical performance while offering a highly compact design. This efficient construction allows for easier handling and installation in confined spaces, making them ideal for modern urban power distribution systems. Despite their compact profile, these cables deliver excellent current-carrying capacity with minimal energy loss and voltage drop, ensuring stable and efficient power delivery. The streamlined design reduces the need for larger conduits or trenches, leading to installation cost savings and faster deployment. Experience the perfect blend of performance and practical design with our reliable power cables.
Long-Term Value & Compliance
Investing in our concentric cables offers exceptional long-term value and ensures full compliance with industry standards. Each cable is manufactured under stringent quality controls, adhering to international specifications to guarantee durability and consistent performance over decades. This commitment to quality translates into minimal maintenance requirements and a significantly extended operational lifespan, reducing your total cost of ownership. Our concentric cable solutions are a reliable, future-proof choice for service entrance cable and general power distribution, providing a secure and compliant foundation for essential electrical services, thus protecting your investment for years to come.
Product Show
Explore the detailed design and practical application scenarios of concentric cable
Overhead Insulated Cable
overhead cable have colors
Overhead Insulated Cable Color
overhead cable four colors
Aerial Bundled Cable
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Aerial Bundled Cable Core
abc cable font view cores
Service Drop Cable
service drop cable cores design
Control Cables
control cables product show
Control Cables Structure
control cables structure design
Overhead Insulated SWA Cable
swa cable cores design
Testing and Certification
Tested with precision and certified to meet international standards as
well as strict industry requirements.
Bare Cable Test Report
SGS Inspection Report
Certificate of Acceptance
ISO Quality Certificate
ISO Environmental Certificate
ISO Occupational Certificate
UL Laboratory Certificate
UL Product Certificate
Project Cases
NPC concentric cables have been successfully applied in many projects and have been highly praised by customers.
Peru Solar PV Project
CompletedNPC Electric Delivers Medium-Voltage Cables for Peru Solar PV Project
Country：Peru
Model：HEPRZ1(AS) 1x630 mm² 19/33kV x 6km
Chile El Project
CompletedReliable 19/33kV MV cables ensuring safe, stable, and efficient power transmission for critical projects.
Country：Chile
Model：19/33kV MV Power Cables x 5km
Dominican Edenorte Project
CompletedProvide outdoor power solutions for urban main road reconstruction projects to adapt to complex environments.
Country：Dominican
Model：NPC AAAC Cable & Triplex Cable x 10km
Related Articles
Understand the product's characteristics, structure, and applications.
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
FAQ From Customers
-
What is a concentric cable?
A concentric cable is an electrical cable consisting of a central conductor, typically made of copper or aluminum, surrounded by one or more layers of insulating material and an outer layer of wire conductors that form the return path for the current. Commonly used in low-voltage power distribution systems, concentric cables are ideal for underground installations, providing both electrical power and protection against short circuits. These cables are designed to withstand mechanical stresses and environmental factors. -
What is the difference between 16mm concentric cable and 25mm concentric cable?
The primary difference between the 16mm concentric cable and the 25mm concentric cable is the size of the conductor and their current-carrying capacity. 16mm concentric cable is commonly used for residential and small commercial applications where lower power transmission is required, while 25mm concentric cable is suitable for medium power distribution in larger residential areas or commercial buildings. Both cables offer excellent mechanical protection, but 25mm cables support higher current loads and are better suited for larger electrical systems. -
What are the applications of split concentric cable?
Split concentric cables are commonly used for low-voltage power distribution in underground networks. The design of a split concentric cable includes a central conductor, surrounded by an insulating layer, with an outer sheath of concentric conductors that are separated into two parts. This design makes split concentric cables ideal for two-way transmission systems, offering improved electrical performance and safety. Split concentric cables are widely used in utilities, residential power connections, and street lighting systems, providing reliable and secure energy distribution. -
What is the advantage of concentric cables over standard cables?
Concentric cables offer several advantages over standard cables, particularly in power distribution systems. The concentric construction provides added mechanical strength and safety by using the outer conductive layer as a neutral conductor, which reduces the risk of electrical faults and short circuits. This type of cable is ideal for underground installations as it minimizes space requirements and improves electrical stability. The use of insulated concentric cables also offers protection against external damage and environmental factors, making them more reliable in urban environments and harsh weather conditions. -
What are the specifications of concentric cable 16mm and concentric cable 25mm?
Concentric cable 16mm and concentric cable 25mm have different specifications tailored to their intended applications. The 16mm concentric cable is designed for smaller power loads and is typically used for low-voltage residential and commercial networks, with a smaller conductor size and current-carrying capacity. On the other hand, a 25mm concentric cable is used for higher current applications and offers greater power handling capability, often used in medium power distribution systems. Both cables feature durable insulation, concentric conductor layers, and corrosion-resistant materials, ensuring long-lasting performance.
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