Wires and Cables
Overhead Insulated Cable
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
3/0 Suffolk Aluminum Conductor Quadruplex Overhead Service Drop Cable is specifically designed to deliver three-phase power from pole-mounted transformers to customer premises in residential, commercial, and light industrial applications. With a 600-volt phase-to-phase voltage rating and a durable build, this cable ensures long-term performance in outdoor environments. The conductors are made of 1350-H19 aluminum, either stranded or compressed, and are insulated with UV-resistant black cross-linked polyethylene (XLP) for superior thermal endurance, rated up to 90°C. For standard polyethylene (PE) insulation, the conductor temperature rating is 75°C. The cable also includes a bare ACSR (Aluminum Conductor Steel Reinforced) messenger, providing mechanical support during overhead installation. Optional messenger types such as AAC or 6201 alloy are available to suit different utility standards or corrosion resistance needs.
4/0 Appaloosa Aluminum Conductor Quadruplex Overhead Service Drop Cable
4/0 Appaloosa Aluminum Conductor Quadruplex Overhead Service Drop Cable is purpose-built for delivering 3-phase electrical power from pole-mounted transformers directly to buildings or service entrances. This overhead service cable is engineered for 600V phase-to-phase operation and provides long-lasting performance in utility and commercial applications. Constructed with 1350-H19 aluminum conductors and insulated with black cross-linked polyethylene (XLP), this cable is resistant to moisture, heat, and UV degradation. It operates efficiently at 90°C for XLP insulation and 75°C for standard polyethylene (PE). To provide mechanical strength and support during aerial installations, the cable includes a bare ACSR (Aluminum Conductor Steel Reinforced) messenger. Optional messengers include AAC or 6201-T81 aluminum alloy to suit various utility specifications and corrosion-resistance needs.
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. It is also commonly deployed for street lighting, security lighting, and temporary power setups at construction sites. Available with either polyethylene (PE) or cross-linked polyethylene (XLP) insulation, this cable ensures safe operation at conductor temperatures up to 75°C (PE) or 90°C (XLP). The conductors are concentrically stranded soft copper, providing superior conductivity and flexibility. The neutral messenger can be solid or stranded bare hard-drawn copper, acting both as a neutral conductor and physical support for overhead installation.
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. Constructed with compact aluminum 1350-H19 conductors insulated with cross-linked polyethylene (XLP), the cable offers excellent resistance to sunlight, moisture, weathering, abrasion, chemicals, and physical stress.
Quadruplex Cable Aluminum Conductor Overhead Service Drop Cable 600V
Quadruplex Aluminum Conductor Overhead Service Drop Cable is designed to deliver three-phase power from pole-mounted transformers to the user's service head, where connection to the service entrance cable is completed. This 600V rated cable features 1350-H19 aluminum conductors, cross-linked polyethylene (XLP) insulation, and a bare ACSR messenger, making it durable and efficient for outdoor overhead distribution applications. It is suitable for use in environments where conductor temperatures do not exceed 75°C for polyethylene or 90°C for XLP insulated conductors.
1/0 Gammarus Aluminum Conductor Triplex Overhead Service Drop Cable
The 1/0 Gammarus Aluminum Conductor Triplex Overhead Service Drop Cable is engineered to deliver power from pole-mounted transformers directly to residential or light commercial service entrances. This triplex cable configuration consists of two phase conductors and one neutral messenger. Each aluminum conductor is insulated with black cross-linked polyethylene (XLP) for maximum protection against heat, moisture, and UV radiation. The bare AAAC neutral messenger supports the cable mechanically, allowing for safe and stable overhead suspension. Rated at 600 volts and compliant with ASTM and ICEA standards, this cable is designed for aerial use in overhead distribution systems where performance, strength, and reliability are required.
1/0 Leda Aluminum Conductor Triplex Overhead Service Drop Cable
1/0 Leda Triplex Aluminum Conductor Overhead Service Drop Cable is designed to deliver reliable and efficient power from utility poles to residential or light commercial structures. This cable features two XLP-insulated phase conductors and a bare AAAC neutral messenger, cabled together in a triplex configuration. Each conductor is composed of 1350-H19 series aluminum, known for its strength and conductivity, while the cross-linked polyethylene insulation (XLP) ensures resistance against heat, UV, moisture, and abrasion. This service drop cable is rated for use in 600V systems, with temperature limits of 75°C for PE or 90°C for XLP insulation. It is compliant with major ASTM and ICEA standards, making it a trusted solution for overhead power distribution.
1/0 Murex Aluminum Conductor Triplex Overhead Service Drop Cable
1/0 Murex Triplex Aluminum Conductor Overhead Service Drop Cable is engineered for reliable aerial power transmission from pole-mounted transformers to the user's service entrance. Featuring two insulated phase conductors and a bare neutral AAC messenger, this triplex cable is ideal for low-voltage overhead distribution systems. Each conductor is made of 1350-H19 series aluminum, known for high conductivity and lightweight properties. The conductors are individually insulated with black cross-linked polyethylene (XLP), offering excellent resistance to sunlight, abrasion, and moisture. This cable is rated for up to 600 volts, and operates at 75°C (PE insulation) or 90°C (XLP insulation), meeting or exceeding all applicable ASTM and ANSI/ICEA S-76-474 standards.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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