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NPC ELECTRIC Transformers Products

High Voltage Power Cable

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In-Depth Analysis

NPC Electric power cables 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 wires and cables exhibit lower losses and higher efficiency across the entire load range.

Load Efficiency Comparison(%)

No-load Loss Comparison(W)

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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%
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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
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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
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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%
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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%
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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 power cable have been rigorously tested and can operate stably under various harsh environmental conditions.

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Temperature Range

-40℃ ~ +55℃

Can work normally in extreme high and low temperature environments

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Humidity Adaptation

0 ~ 100% RH

Including condensation environment, no frost requirement

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Weather Resistance Grade

UV/IEC 60811-501

The outer sheath has excellent UV resistance and aging resistance

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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 power cable trusted by industries worldwide.
Power Cables Manufacturer

Power Cables Manufacturer

NPC Electric is a leading power cable manufacturer, specializing in the design and production of high voltage and low voltage power cables for various industries. Our cables are engineered for optimal energy transmission, offering exceptional durability and performance in both residential and industrial applications. We provide custom cable solutions tailored to meet specific project needs, from aerial and underground power lines to specialized electrical cables for commercial use. With strict cable manufacturing processes and comprehensive testing procedures, NPC Electric ensures the highest standards of quality and reliability. Whether for power distribution, renewable energy projects, or heavy industrial use, our cables provide safe and efficient electrical solutions that stand the test of time.
High, Medium, and Low Voltage Power Cables

High, Medium, and Low Voltage Power Cables

NPC Electric offers a wide range of power cables designed for efficient and reliable energy transmission across high voltage, medium voltage, and low voltage systems. Our high voltage power cables are engineered for long-distance transmission, ensuring minimal energy loss while maintaining safety and performance. Medium voltage power cables are used in power distribution networks to connect substations to industrial or residential areas, providing a stable and efficient power supply. Our low voltage power cables are designed for residential and commercial wiring, offering flexibility and reliability for everyday electrical systems. Each cable is constructed with advanced insulation materials like XLPE, ensuring high durability, thermal stability, and long-term performance. NPC Electric's cables are ideal for use in various electrical networks, meeting both industrial and residential needs.
Power Cable Design

Power Cable Design

The power cable design is crucial for ensuring the efficient and safe transmission of electricity across high voltage and low voltage power systems. At NPC Electric, our cable construction includes a high-quality conductor made from aluminum or copper, surrounded by insulation materials such as cross-linked polyethylene (XLPE) for excellent electrical performance and thermal stability. We specialize in custom cable design to meet specific customer needs, whether for underground cables, aerial cables, or specialized industrial applications. Each cable is designed to adhere to international electrical cable standards, ensuring superior durability, energy efficiency, and long-term performance. Our power transmission cables provide reliable, high-performance solutions for residential, commercial, and industrial power distribution.
Testing & Quality Control

Testing & Quality Control

At NPC Electric, we prioritize power cable testing and quality control to ensure the highest standards of reliability and performance for every product. Our comprehensive cable testing procedures include high voltage cable testing, low voltage cable testing, and insulation resistance testing to verify the electrical integrity of each cable. We follow strict quality control protocols throughout the cable manufacturing process, ensuring that each product meets international standards and exceeds customer expectations. Our quality assurance system includes routine checks for durability, performance, and safety to guarantee that our cables deliver safe, long-lasting, and efficient power transmission for both residential and industrial applications.

Product Show

Explore the detailed design and practical application scenarios of power cables
Power Cable

Power Cable Design

power cable core design

Low Voltage Power Cable

Low Voltage Power Cable

lv power cable design

High Voltage Power Cable

High Voltage Power Cable

hv power cable design

Three Cores Power Cable

Three Cores Power Cable

three cores power cable design

Medium Voltage Power Cable

Medium Voltage Power Cable

mv power cable design

SWA HV Power Cable

SWA HV Power Cable

swa high voltage power cable

Single Core Power Cable

Single Core Power Cable

single core power cable design

Four Cores MV Power Cable

Five Cores MV Power Cable

five cores mv power cable design

Testing and Certification

Tested with precision and certified to meet international standards as well as strict industry requirements.
Bare Cable(AAC,AAAC,ACAR ACSR) Test Report

Bare Cable Test Report

SGS Inspection Report

SGS Inspection Report

Certificate of Acceptance

Certificate of Acceptance

ISO Quality Management System Certificate

ISO Quality Certificate

ISO Environmental Certificate

ISO Environmental Certificate

ISO Occupational Certificate

ISO Occupational Certificate

UL Laboratory Certificate

UL Laboratory Certificate

UL Product Certificate

UL Product Certificate

Project Cases

NPC power cables have been successfully applied in many projects and have been highly praised by customers.
NPC Electric Delivers Medium-Voltage Cables for Peru Solar PV Project

Peru Solar PV Project

Completed

NPC Electric Delivers Medium-Voltage Cables for Peru Solar PV Project

Country:Peru

Model:HEPRZ1(AS) 1x630 mm² 19/33kV x 6km

"High quality, strong water-discharging and corrosion-resistant ability"
19/33kV MV Power Cables

Chile El Project

Completed

Reliable 19/33kV MV cables ensuring safe, stable, and efficient power transmission for critical projects.

Country:Chile

Model:19/33kV MV Power Cables x 5km

"Safe, stable and strong anti-corrosion ability"
AAAC Conductor Cable & Triplex Cable

Dominican Edenorte Project

Completed

Provide outdoor power solutions for urban main road reconstruction projects to adapt to complex environments.

Country:Dominican

Model:NPC AAAC Cable & Triplex Cable x 10km

"Excellent protection performance, suitable for outdoor environment"

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

FAQ From Customers

What are high voltage power cables used for?

High-voltage power cables are designed for the transmission of electricity over long distances. They are used in high-voltage transmission lines to deliver electricity from power plants to substations. These cables are engineered to handle high electrical loads, minimize energy loss, and ensure safety in long-distance electrical power transmission. High-voltage cables are typically made with advanced insulation materials to withstand high stress and environmental factors.

What are the differences between high, medium, and low voltage power cables?

The main difference between high, medium, and low voltage power cables lies in the voltage level and their intended applications. High-voltage cables are used for long-distance power transmission, typically ranging from 1kV to 765kV. Medium voltage cables (1kV to 35kV) are used for power distribution from substations to local areas. Low-voltage cables (up to 1kV) are used in residential, commercial, and industrial buildings for everyday power supply.

What is the application of low voltage power cables?

Low-voltage power cables are used in residential, commercial, and industrial electrical wiring systems. These cables provide power for lighting, appliances, and smaller equipment within homes, office buildings, and factories. Low-voltage cables are commonly used for internal wiring, electrical circuits, and power distribution within the building. They are designed to carry power safely and efficiently at voltages up to 1kV.

How are medium voltage power cables used in power distribution?

Medium voltage power cables (1kV to 35kV) are used in power distribution systems to carry electricity from substations to residential neighborhoods, commercial buildings, and industrial complexes. These cables are designed to handle higher loads than low-voltage cables, and they are ideal for situations where energy needs are larger but not as high as transmission-level power. Medium voltage cables provide stable and reliable electrical service to a wide range of users.

What materials are commonly used in power cables for high, medium, and low voltage systems?

Power cables for high, medium, and low voltage systems are typically made with copper or aluminum conductors for excellent electrical conductivity. The insulation materials include cross-linked polyethylene (XLPE) for high performance and thermoplastic compounds like PVC for standard applications. Sheath layers are typically made of PVC or PE for mechanical protection and weather resistance. The materials are selected based on the voltage rating and the specific environmental and performance requirements of the cable.

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