Wires and Cables
Overhead Insulated Cable
Enhance aerial power distribution with robust Overhead Insulated Cables. Designed for safety and reliability in overhead line applications, these cables provide a secure alternative to bare conductors, particularly in areas prone to tree contact or requiring improved safety clearances. Our Overhead Insulated Cable features durable XLPE or HDPE insulation over high-strength aluminum conductors, offering excellent weather resistance, UV stability, and reduced short-circuit risks. Ideal for aerial bundled cable (ABC) systems, they improve grid reliability by minimizing outages from external factors, making them perfect for urban, suburban, and rural power distribution.
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.
ABC CABLE NFC 33-209
Aerial Bundled Cable under NPC 33-209 standard is mainly used in the field of overhead power distribution. ABC Cable, manufactured in accordance with NFC 33-209 is designed for overhead low-voltage power distribution with enhanced mechanical strength and operational safety. The cable consists of insulated aluminum phase conductors twisted around a reinforced messenger conductor, forming a compact aerial bundle. This structure reduces the risk of short circuits caused by external contact and minimizes power outages in densely populated or environmentally challenging areas. The insulation material provides excellent resistance to UV radiation, weather exposure, and thermal aging, ensuring stable electrical performance over long service periods. Compliant with NFC 33-209 requirements, the cable delivers reliable current transmission, reduced line losses, and simplified installation compared with bare conductors. ABC Cable NFC 33-209 is widely used by utility companies for modern overhead distribution networks where safety, durability, and cost efficiency are critical.
Duplex Service Drop Cable
The Duplex Service Drop Cable is a reliable overhead cable for secondary power distribution from the utility pole to the service entrance. Featuring two insulated phase conductors (aluminum or ACSR) twisted around a bare or covered neutral messenger wire, it offers excellent mechanical strength and weather resistance. Insulation options include XLPE, PE, or PVC for superior UV, moisture, and abrasion protection. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports low-voltage applications up to 600V. Lightweight design facilitates easy installation with reduced sag and long spans. The Duplex Service Drop Cable ensures minimal power losses, high tensile strength from the messenger, and long service life in harsh outdoor conditions. Ideal for residential, commercial, and rural electrification projects requiring safe, cost-effective aerial service connections worldwide.
Quadruplex Service Drop Cable
NPC Electric Quadruplex Service Drop Cable offers efficient overhead three-phase service with neutral support. Comprising three-phase conductors (aluminum) insulated with XLPE or PE and helically twisted around a strong neutral messenger (ACSR, AAC, or covered aluminum), it meets ASTM, ICEA, and international standards. The messenger provides full self-support, allowing longer spans and reduced infrastructure costs. Premium insulation resists sunlight, moisture, and mechanical abrasion for decades of outdoor service. Lightweight and flexible, it simplifies installation with low sag. The Quadruplex Service Drop Cable ensures minimal losses, high mechanical endurance, and excellent weather performance up to 600V. Flame-retardant options enhance safety. Perfect for reliable power delivery in urban developments, commercial areas, street lighting, and temporary sites requiring safe, cost-effective aerial bundled solutions.
Triplex Service Drop Cable
The Triplex Service Drop Cable is designed for overhead power distribution from utility lines to residential and commercial service entrances. It typically consists of two insulated phase conductors and one bare or insulated neutral messenger conductor, twisted together to provide mechanical support and electrical reliability. The phase conductors are insulated with weather-resistant materials such as XLPE or PE, offering excellent resistance to UV radiation, moisture, and environmental aging. Engineered for dependable performance, the Triplex Service Drop Cable ensures stable power delivery while minimizing line losses and installation complexity. Its lightweight yet robust construction allows for easy stringing across poles and buildings, while maintaining adequate tensile strength for long-span applications. Manufactured in accordance with applicable utility and industry standards, this cable is widely used in low-voltage overhead distribution networks where safety, durability, and long service life are essential.
1/0 Bull Aluminum Conductor Duplex Overhead Service Drop Cable
The 1/0 Bull Aluminum Conductor Duplex Overhead Service Drop Cable is a high-quality cable designed for use in aerial service applications such as construction sites, outdoor or street lighting, and temporary services. It is perfect for installations where 120V or lower service is required at conductor temperatures of up to 90°C. This cable is known for its durability and high conductivity, making it an excellent choice for residential, commercial, and industrial use. With a variety of configurations such as AAC, AAAC, or ACSR for messenger conductors, it provides a reliable solution for overhead service drops. Constructed with XLPE (UV-resistant) insulation, it ensures long-term performance even in harsh weather conditions.
1/0 Malemute Aluminum Conductor Duplex Overhead Service Drop Cable
The 1/0 Malemute Aluminum Conductor Duplex Overhead Service Drop Cable is designed for use in a variety of aerial service applications, including temporary services at construction sites and outdoor or street lighting. This cable supports 600V or lower service with a conductor temperature of up to 90°C, providing a reliable solution for overhead installations. It is known for its excellent conductivity, durability, and UV resistance. With AAC, AAAC, or ACSR messenger conductor options, this cable offers flexibility in meeting different project requirements. The XLPE (UV-resistant) insulation ensures long-lasting protection against the elements, making it ideal for outdoor applications. The 1/0-1/0 Malemute cable is also compliant with industry standards such as B-230, B-231, and ICEA S-76-474, ensuring top-tier performance.
2 Chow Aluminum Conductor Duplex Overhead Service Drop Cable
The 2 Chow Aluminum Conductor Duplex Overhead Service Drop Cable is designed to supply 120V aerial service for temporary uses, including construction sites, street lighting, and outdoor installations. Rated for 600V or lower and with a maximum conductor temperature of 90°C, this cable offers excellent performance in overhead service applications. Featuring high-conductivity 1350-H19 aluminum conductors and AAC, AAAC, or ACSR messenger conductors, it provides reliable service in various environments. The XLPE (UV-resistant) insulation ensures durability in harsh weather conditions, making it ideal for outdoor use. The 2-2 Chow cable meets industry standards such as B-230, B-231, and ICEA S-76-474, ensuring superior quality and performance.
2 Doberman Aluminum Conductor Duplex Overhead Service Drop Cable
The 2 Doberman Aluminum Conductor Duplex Overhead Service Drop Cable is engineered to provide reliable 120V aerial service for temporary applications, including construction sites, outdoor lighting, and street lighting. Designed for use with services rated up to 600V and a maximum conductor temperature of 90°C, this cable ensures stable performance in overhead installations. With its 1350-H19 aluminum conductors and available AAC, AAAC, or ACSR messenger conductors, it delivers outstanding conductivity and durability. The XLPE (UV-resistant) insulation ensures the cable withstands harsh weather conditions, offering long-lasting protection for both residential and industrial uses. Compliant with industry standards such as B-230, B-231, and ICEA S-76-474, the 2-2 Doberman cable is a trusted choice for a variety of overhead service drop applications.In-Depth Analysis
Overhead Insulated 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 Overhead Insulated 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 Overhead Insulated 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 overhead insulated cable trusted by industries worldwide.
Overhead Insulated Cable Manufacturer
NPC Electric is a leading overhead insulated cable manufacturer, specializing in the production of high-quality insulated power cables for overhead power lines and electricity distribution systems. Our overhead insulated cables are designed to provide safety, reliability, and long-term performance in outdoor installations, especially in high voltage and high-current applications. These cables offer excellent corrosion resistance and mechanical strength, ensuring minimal maintenance and increased durability. Made from premium materials and manufactured to international standards, NPC Electric’s insulated cables are perfect for urban, rural, and industrial networks. Our commitment to quality and innovation guarantees the reliable energy delivery and sustainable power distribution you need for any infrastructure project.
Overhead Insulated Cable Benefits
Overhead insulated cables offer several key benefits for power transmission networks. The primary advantage of insulated power cables is their enhanced safety, as they reduce the risk of electrical accidents by providing protection against accidental contact with live wires. These high voltage insulated cables also minimize the impact of environmental factors such as wind, rain, or snow on the transmission network. Corrosion-resistant cables are ideal for coastal areas or regions with high humidity, ensuring longevity and reducing maintenance costs. Additionally, insulated cables improve energy efficiency by minimizing losses and reducing the need for costly repairs. In renewable energy applications, such as solar and wind power systems, overhead insulated cables ensure safe and efficient energy delivery across vast areas.
Overhead Insulated Cable Installation
Overhead insulated cable installation requires careful planning and adherence to safety standards. NPC Electric ensures that our insulated power cables are installed following precise installation procedures, which include proper tensioning, securing to support structures, and maintaining safety clearances in overhead power lines. The high voltage cable installation process is designed to minimize risks and ensure long-term reliability. Once installed, insulated cables require regular maintenance to ensure optimal performance. This includes periodic inspections for damage, corrosion, and insulation wear, as well as testing for voltage endurance and mechanical integrity. NPC Electric’s cable maintenance services guarantee that power transmission networks continue to operate safely, efficiently, and with minimal downtime, ensuring reliable power delivery for urban, rural, and industrial installations.
Testing and Certification
At NPC Electric, every overhead insulated cable undergoes rigorous testing and certification to ensure optimal performance and safety. Our insulated power cables are tested for high voltage endurance, insulation resistance, and mechanical strength to meet IEC and ANSI standards. We conduct comprehensive quality control checks, including dielectric testing, temperature rise testing, and corrosion resistance evaluation to guarantee the durability of our high voltage cables in demanding environments. Each insulated cable is certified to meet international safety standards, ensuring reliable performance in overhead power lines, electricity distribution systems, and renewable energy projects. NPC Electric’s commitment to quality testing and certification ensures long-term, safe power transmission and minimal maintenance requirements.
Product Show
Explore the detailed design and practical application scenarios of overhead insulated cables
Overhead Insulated Cable
overhead cable have colors
Overhead Insulated Cable Color
overhead cable four colors
Aerial Bundled Cable
abc cable design cores
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 wires and 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
Technical Advantages
● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions
FAQ From Customers
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What is the structure of an overhead insulated cable?
Overhead insulated cables typically consist of a conductor, insulation layer, and an optional outer sheath. The conductor is usually made from aluminum or copper, providing excellent electrical conductivity. The insulation layer, made from materials like cross-linked polyethylene (XLPE) or PVC, protects the conductor and prevents accidental contact with live wires. An optional outer sheath is added for additional mechanical protection and durability, particularly in harsh environmental conditions. -
What materials are used for the insulation of overhead insulated cables?
The insulation of overhead insulated cables is typically made from cross-linked polyethylene (XLPE), which offers superior thermal stability, electrical insulation properties, and resistance to environmental factors. Alternatively, PVC (polyvinyl chloride) can be used for lower voltage applications. These materials help prevent electrical hazards by ensuring that the conductor remains safely insulated, especially in outdoor and exposed environments such as overhead power lines. -
How are overhead insulated cables manufactured?
The manufacturing process of overhead insulated cables begins with the conductor preparation, which involves drawing aluminum or copper to the desired size. The insulation layer is then applied using extrusion technology, ensuring uniform thickness and durability. For high voltage cables, the insulation is cross-linked to improve performance at elevated temperatures and resist electrical stress. The outer sheath is then added, providing protection against physical damage and environmental conditions. The entire process follows stringent quality control and testing procedures to ensure reliability and compliance with international standards such as IEC and ANSI. -
What makes overhead insulated cables suitable for high voltage applications?
Overhead insulated cables are suitable for high voltage applications due to their specialized insulation materials such as cross-linked polyethylene (XLPE), which provides excellent electrical strength and thermal stability. These materials prevent the risk of electrical leakage and offer protection against high voltage surges. The cables' mechanical strength and weather-resistant outer sheath ensure long-term durability and performance, even in extreme environments. Additionally, the insulated layers prevent external damage from wind, moisture, and physical contact, making them ideal for high-voltage power transmission. -
How do overhead insulated cables protect against environmental factors?
Overhead insulated cables are designed to withstand environmental challenges such as moisture, extreme temperatures, UV radiation, and mechanical stress. The insulation material, typically XLPE or PVC, offers excellent resistance to corrosion and weathering, ensuring long-lasting performance even in harsh climates. The outer sheath further protects the cable from abrasion, chemical exposure, and physical damage, ensuring that the cables maintain their integrity and electrical safety during their service life.
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