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.
2/0 Grullo Aluminum Conductor Quadruplex Overhead Service Drop Cable
2/0 Grullo Aluminum Conductor Quadruplex Overhead Service Drop Cable is a high-performance solution for delivering three-phase electrical power from pole-mounted transformers to residential or commercial service entrances. It is specifically engineered for 600-volt phase-to-phase operations and supports conductor temperatures up to 90°C with cross-linked polyethylene (XLP) insulation, or 75°C when using standard polyethylene (PE) insulation. This cable consists of three phase conductors made from 1350-H19 aluminum, either stranded or compressed, and a bare ACSR (Aluminum Conductor Steel Reinforced) neutral messenger. Alternate messenger materials include AAC or 6201 alloy for different mechanical load and corrosion resistance preferences. With rugged black XLP insulation, this quadruplex cable provides exceptional weather resistance, UV protection, and thermal endurance, making it ideal for overhead outdoor installations in a wide variety of environments.
3/0 Suffolk Aluminum Conductor Quadruplex Overhead Service Drop Cable
The 3/0 Suffolk Quadruplex Service Drop Cable is a robust overhead cable for three-phase secondary power distribution with neutral. Featuring three 3/0 AWG aluminum phase conductors and one neutral messenger (7-strand) insulated with XLPE or PE and assembled in quadruplex configuration, it offers excellent mechanical strength and weather resistance. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports 600V applications with superior UV, moisture, and abrasion protection. The self-supporting messenger reduces sag and simplifies installation over medium spans. The 3/0 Suffolk Quadruplex Service Drop Cable ensures low power losses, high current capacity, and long service life in harsh outdoor conditions. Lightweight and flexible, it is widely used for three-phase service drops in residential subdivisions, commercial buildings, and rural areas requiring safe, cost-effective aerial connections from utility poles to service entrances.
4/0 Appaloosa Aluminum Conductor Quadruplex Overhead Service Drop Cable
Our 4/0 Appaloosa Quadruplex Service Drop Cable delivers efficient overhead three-phase service with neutral support. Comprising three 4/0 AWG aluminum phase conductors (7-strand) insulated with XLPE or PE and helically twisted around a strong neutral messenger (ACSR or 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 4/0 Appaloosa 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 quadruplex solutions.
Copper Conductor Quadruplex Service Drop Cable 600V
Copper Conductor Quadruplex Overhead Service Drop Cable is designed for 600V phase-to-phase electrical distribution, primarily used to carry power from pole-mounted transformers to the customer's service entrance. Comprising three insulated copper phase conductors and one copper neutral messenger (stranded) with XLPE or PE insulation in quadruplex form, it meets ASTM, ICEA, and international standards. High-purity copper ensures minimal voltage drop and excellent current capacity. Robust insulation resists sunlight, moisture, and mechanical damage for decades of outdoor service. Self-supporting design allows easy installation with low sag. The Copper Conductor Quadruplex Service Drop Cable 600V provides reliable power transfer up to 600V in extreme temperatures. Flame-retardant options enhance safety. Commonly chosen for premium single-phase and three-phase power delivery in subdivisions, rural homes, commercial connections, and critical installations requiring high-conductivity copper overhead solutions with proven longevity and performance.
NS75/NS90 Quadruplex Unjacketed Overhead Neutral Supported Cable
NS75/NS90 Quadruplex Unjacketed Overhead Neutral Supported Cable is designed to deliver three-phase power from secondary overhead power lines or pole-mounted transformers directly to the service entrance conductors of a building or structure. Rated for 600V systems, this cable combines durability, conductivity, and thermal performance, making it ideal for residential, commercial, and light industrial power distribution. Featuring three XLPE-insulated aluminum phase conductors (75 mm² or 95 mm²) supported by a bare neutral messenger (ACSR or AAAC) without an overall jacket, it offers excellent mechanical strength and weather resistance. Compliant with AS/NZS 3560, IEC, and utility standards, this cable supports 600/1000V applications with superior UV, moisture, and tracking protection. The unjacketed design reduces weight and cost while maintaining integrity for spans up to 100m. The NS75/NS90 Quadruplex Unjacketed Overhead Neutral Supported Cable ensures low sag, easy installation, and long-term reliability in harsh conditions.
Quadruplex Cable Aluminum Conductor Overhead Service Drop Cable 600V
The Quadruplex Aluminum Overhead Service Drop Cable 600V is a reliable aerial cable for three-phase secondary power distribution with neutral. Featuring three insulated aluminum phase conductors and one neutral messenger (stranded aluminum or ACSR) with XLPE or PE insulation in quadruplex assembly, it offers excellent mechanical strength and weather resistance. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports 600V applications with superior UV, moisture, and abrasion protection. The self-supporting messenger reduces sag and simplifies installation over medium spans. The Quadruplex Aluminum Overhead Service Drop Cable 600V ensures low power losses, high current capacity, and long service life in harsh outdoor conditions. Lightweight and flexible, it is widely used for three-phase service drops in residential subdivisions, commercial buildings, and rural areas requiring safe, cost-effective overhead connections from utility poles to service entrances worldwide.
1/0 Gammarus Aluminum Conductor Triplex Overhead Service Drop Cable
NPC Electric 1/0 Gammarus Triplex Service Drop Cable provides reliable overhead secondary distribution for residential applications. Consisting of two 1/0 AWG aluminum phase conductors and one neutral messenger (7-strand) insulated with cross-linked polyethylene (XLPE) and twisted in triplex form, it meets ASTM, ICEA, and international standards. The robust insulation resists sunlight, moisture, and mechanical damage for decades of outdoor service. Lightweight design simplifies installation with low sag and easy handling. The 1/0 Gammarus Triplex Service Drop Cable ensures minimal losses, high current capacity, and excellent weather performance up to 600V. Self-supporting messenger reduces pole loading. Flame-retardant options enhance safety. Commonly chosen for two-phase power delivery with neutral in subdivisions, rural homes, and temporary connections requiring safe, economical aerial bundled solutions with proven durability.
1/0 Leda Aluminum Conductor Triplex Overhead Service Drop Cable
The 1/0 Leda Triplex Service Drop Cable is a durable overhead cable for secondary power distribution to residential service entrances. Featuring two 1/0 AWG aluminum phase conductors and one neutral messenger (7-strand) insulated with XLPE or PE and assembled in triplex configuration, it provides excellent mechanical strength and weather resistance. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports 600V applications with high UV, moisture, and abrasion protection. The self-supporting messenger reduces sag and simplifies installation over medium spans. The 1/0 Leda Triplex Service Drop Cable ensures low power losses, high current capacity, and long service life in harsh outdoor conditions. Lightweight and flexible, it is widely used for two-phase service drops with neutral in urban, suburban, and rural areas requiring safe, cost-effective aerial connections from utility poles to homes.
1/0 Murex Aluminum Conductor Triplex Overhead Service Drop Cable
1/0 Murex Aluminum Conductor Triplex Overhead Service Drop Cable is engineered for secondary overhead power distribution from utility lines to residential and light commercial service entrances. The triplex construction consists of two insulated aluminum phase conductors twisted around a bare aluminum neutral messenger, providing both electrical transmission and mechanical support. The 1/0 Murex conductor size offers high current-carrying capacity, excellent tensile strength, and controlled sag performance, making it suitable for longer service drop spans and higher load requirements. Aluminum conductors ensure reduced weight, corrosion resistance, and ease of installation in outdoor environments. Manufactured in accordance with ASTM and utility standards, the 1/0 Murex Aluminum Conductor Triplex Overhead Service Drop Cable delivers consistent electrical performance, long-term durability, and reliable mechanical stability. It is widely used by utilities and contractors seeking a cost-effective and dependable overhead service drop solution.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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