Wires and Cables
Overhead Insulated Cable
6 Shepherd Aluminum Conductor Duplex Overhead Service Drop Cable
The 6 Shepherd Aluminum Conductor Duplex Overhead Service Drop Cable is a rugged and lightweight aerial cable engineered to deliver 120V power reliably in outdoor settings. Perfect for temporary electrical service at construction sites, rural homes, mobile buildings, or street lighting, this cable is rated for use at 600 volts or below and can withstand operating temperatures up to 90°C. This cable configuration includes a phase conductor made from high-purity 1350-H19 aluminum, insulated with UV-resistant black XLPE, and a bare ACSR neutral messenger that also provides mechanical support. It is designed to withstand harsh outdoor conditions including sunlight, moisture, and wind loading, making it a go-to choice for aerial electric distribution systems.
Copper Conductor Duplex Service Drop Cable 600V
The Copper Conductor Duplex Service Drop Cable is specifically engineered for overhead power delivery applications, connecting the pole-mounted transformer to the user’s service entrance. This cable is widely used for residential, commercial, and temporary power setups, including street lighting, security lights, and construction site power distribution. Built for voltages up to 600 volts phase-to-phase, the cable ensures safe, reliable conduction with a maximum conductor temperature rating of 75°C for polyethylene insulation and 90°C for cross-linked polyethylene (XLP) insulation. This dual insulation choice offers flexibility depending on the environmental demands and application specifics.
Duplex Overhead Service Drop Cable
The Duplex Overhead Service Drop Cable is specially designed for overhead electrical service applications at 120 volts, such as street lighting, outdoor lighting, and temporary power supply at construction sites. This cable supports service voltages up to 600 volts phase-to-phase or less, making it a versatile choice for various low-voltage power distribution needs. Key Applications: Supplying 120V overhead power for street and outdoor lighting, Providing temporary electrical service for construction and outdoor events, Electrical connections in residential or commercial power distribution setups, Ideal for overhead systems where reliability and weather resistance are crucial
NS75/NS90 Duplex Unjacketed Overhead Neutral Supported Cable
The NS75/NS90 Duplex Unjacketed Overhead Neutral Supported Cable is a high-performance power cable designed for outdoor overhead applications. Featuring cross-linked polyethylene (XLPE) insulation, it offers excellent resistance to weathering, UV radiation, abrasion, tearing, cutting, and chemical exposure. Rated for 600 volts and capable of operating at conductor temperatures up to 90°C, this cable delivers superior ampacity compared to the NS75 variant, ensuring reliable performance under demanding conditions.
2 Palomino Aluminum Conductor Quadruplex Overhead Service Drop Cable
2 Palomino Aluminum Conductor Quadruplex Overhead Service Drop Cable is designed for delivering 3-phase power from pole-mounted transformers directly to the user's service entrance. This durable overhead cable is ideal for low-voltage power distribution applications up to 600 volts (phase-to-phase). The quadruplex construction consists of three phase conductors made from 1350-H19 series aluminum, either stranded or compressed, and a neutral messenger typically built from bare ACSR. Optional constructions with AAC or 6201 alloy messengers are also available for specialized applications. Each phase conductor is insulated with black Cross-Linked Polyethylene (XLP), offering excellent resistance to moisture, abrasion, and thermal degradation. The cable is rated for a maximum operating temperature of 90°C for XLP insulation or 75°C for polyethylene (PE) insulation.
4 Hackney Aluminum Conductor Quadruplex Overhead Service Drop Cable
4 Hackney Aluminum Conductor Quadruplex Overhead Service Drop Cable is designed for three-phase power distribution from utility pole-mounted transformers to end-user service entrances. Engineered for voltages up to 600 volts (phase-to-phase), this robust overhead cable provides a reliable and cost-effective solution for residential, agricultural, and light commercial electrical installations. The cable consists of three phase conductors made from 1350-H19 aluminum (stranded or compressed) and one bare ACSR neutral messenger that also supports the cable mechanically. Alternative messenger materials like AAC or 6201 alloy are available upon request. Each conductor is insulated with high-quality black cross-linked polyethylene (XLP), offering superior weather resistance, thermal stability, and insulation integrity. The cable can be operated at temperatures up to 90°C for XLP or 75°C for PE insulation.
6 Chola Aluminum Conductor Quadruplex Overhead Service Drop Cable
6 Chola Aluminum Conductor Quadruplex Overhead Service Drop Cable is designed for delivering three-phase electrical power from a pole-mounted transformer to a building's service entrance. It is specifically constructed for overhead use and rated for applications up to 600 volts (phase-to-phase). Each cable contains three phase conductors made of 1350-H19 aluminum (stranded or compressed), and a neutral messenger conductor made from bare ACSR for both electrical grounding and mechanical support. Optional messenger materials include AAC or 6201 aluminum alloy, depending on specific installation needs. The black cross-linked polyethylene (XLP) insulation provides enhanced protection against weather, heat, and abrasion, making this cable ideal for long-term use in challenging outdoor environments. It operates efficiently at temperatures up to 90°C for XLP, or 75°C for PE-insulated versions.
1/0 Costena Aluminum Quadruplex Overhead Service Drop Cable
1/0 Costena Aluminum Conductor Quadruplex Overhead Service Drop Cable is a heavy-duty, weather-resistant cable designed for supplying 3-phase electrical power from utility pole-mounted transformers directly to a customer’s service entrance. Engineered for voltages of 600V or less, it is ideal for both rural and urban overhead service drop applications. The cable features three phase conductors made of stranded or compressed 1350-H19 aluminum, paired with a bare ACSR neutral messenger conductor that serves as both the ground and mechanical support. Optional messenger materials include AAC or 6201-T81 aluminum alloy, offering flexibility based on mechanical and environmental requirements. Each conductor is insulated with black cross-linked polyethylene (XLP), providing superior protection against heat, sunlight, and environmental wear. The cable supports operation at temperatures up to 90°C for XLP insulation or 75°C for polyethylene.
1/0 Shetland Aluminum Conductor Quadruplex Overhead Service Drop Cable
1/0 Shetland Aluminum Conductor Quadruplex Overhead Service Drop Cable is engineered to deliver three-phase electrical power from pole-mounted transformers to service entrances in residential, agricultural, and light commercial settings. Designed for overhead installation, this cable is rated for 600 volts phase-to-phase and can operate at temperatures up to 90°C with cross-linked polyethylene (XLP) insulation, or 75°C with polyethylene (PE) insulation. The cable includes three phase conductors constructed from 1350-H19 series aluminum, either stranded or compressed, and a neutral messenger made of bare AAAC (All Aluminum Alloy Conductor). Optional constructions are available with AAC or ACSR messengers, allowing adaptability for varying mechanical or electrical needs. XLP insulation offers superior durability, weather resistance, and thermal stability, making this cable ideal for challenging outdoor environments.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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