Wires and Cables
IEC standard
H05V-U H05V-R H05V-K
H05V-K cable is used for the internal wiring of electric motors and transformers as well as other electrical appliances and lighting applications. It can be used in and at electronic appliances for measuring, regulating and controlling. The cables are also ideal for laying in pipes, surface wiring and conduit installations. Specifications according to HD 516 apply for respective specific applications. H05V-U cable is intended for the installation to the inside of apparatus as well as for the protective laying to the lightings, in dry rooms, in production facilities, switch and distributor boards, in tubes, under and surface mounting of plasters. H05V-R is preferably for installation indoors, in cable ducts and in industrial plants or switching stations, under ground installation. Can be used in switchboards and distributor boards or where a thicker strand of multi-wire is required.Found in electronic and electrical equipment and switch gear cabinets designed for export to a European country and for MRO replacement of European made equipment wire.
6242Y FLAT TWIN & EARTH
Widely used in lighting and domestic buildings. These cables are particularly suited for installation as meter tails and are used for fixed installation in the condition of dry or damp conditions. 6242Y can be laid in conduit, cable trunking, and cable ducting. Or where there is little risk of mechanical damage,e these cables can be fixed with a clip directly or by cable tray, or embedded or in free air. They are not allowed to be laid underground.
H07V-U H07V-R H07V-K
H07V-K cable is used for the internal wiring of electric motors and transformers as well as other electrical appliances and lighting applications. It can be used in and at electronic appliances for measuring, regulating and controlling. The cables are also ideal for laying in pipes, surface wiring and conduit installations. Specifications according to HD 516 apply for respective specific applications. H07V-U cable is intended for the installation to inside of apparatus as well as for the protective laying to the lightings, in dry rooms, in production facilities, switch and distributor boards, in tubes, under and surface mounting of plasters. H07V-R cable is preferably for installation indoors, in cable ducts, and in industrial plants or switching stations, under ground installation. It can be used in switchboards and distributor boards or where a thicker strand of multi-wire is required. Found in electronic and electrical equipment and switch gear cabinets designed for export to a European country and for MRO replacement of European-made equipment wire.In-Depth Analysis
NPC Electric building wire 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 control & instrument 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 building wire 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 building wire trusted by industries worldwide.
Building Wire Manufacturer
As a leading building wire manufacturer, NPC Electric specializes in providing high-quality building wire solutions for both residential and commercial wiring. Our building wires are crafted from premium copper or aluminum conductors, ensuring superior electrical conductivity and reliable performance. Designed for power distribution, lighting circuits, and control systems, our wires meet the highest safety standards, including UL and IEC certifications. Whether for new construction or remodeling projects, our building wire offers flexibility, durability, and safety in a wide range of applications. With competitive pricing and industry compliance, NPC Electric ensures you receive cost-effective, high-performance wiring solutions for any electrical project.
Building Wire Durability & Safety
Our building wire is designed to provide exceptional durability and safety for all electrical installations. With advanced fire-resistant insulation, our wires offer superior protection against fire hazards, ensuring safe electrical systems in residential and commercial buildings. The abrasion-resistant outer layer ensures that the wire maintains its integrity, even in harsh conditions or areas with high wear and tear. Whether used in indoor wiring or outdoor circuits, our high-performance building wire is built to withstand moisture, chemical exposure, and extreme temperatures, making it the ideal choice for long-lasting and reliable wiring solutions. Flexible and durable, it meets all safety standards, ensuring compliance with UL and IEC certifications for peace of mind and maximum reliability in every installation.
Building Wire Conductivity & Performance
Our building wire is engineered for exceptional conductivity and high electrical performance, ensuring efficient power transmission across residential and commercial installations. Manufactured with premium copper or aluminum conductors, our wires provide superior electrical conductivity, minimizing energy loss and enhancing overall system efficiency. Designed for both lightning circuits and power distribution systems, our high-performance building wire delivers consistent and reliable electrical performance. Whether you choose copper for higher conductivity or aluminum for a lighter and cost-effective solution, our wires meet the highest industry standards, ensuring safe and efficient wiring solutions. Built for long-term durability, our building wires offer unmatched performance, keeping your electrical systems running smoothly for years.
Testing & Quality Control
At NPC Electric, testing and quality control are critical to ensuring the highest standards of building wire performance and safety. Our electrical cable testing procedures include voltage testing, insulation resistance tests, and mechanical stress testing to ensure every wire meets safety regulations and performs reliably under demanding conditions. We use advanced testing methods to evaluate conductivity, flexibility, and abrasion resistance, guaranteeing high-performance wire that meets or exceeds UL and IEC standards. Our strict quality assurance process ensures that every building wire is thoroughly tested for durability, electrical efficiency, and safety. With quality control procedures in place, we ensure each product delivers reliable, long-lasting performance, making NPC Electric the trusted choice for premium wiring solutions in residential, commercial, and industrial applications.
Product Show
Explore the detailed design and practical application scenarios of building wire
Red Building Wires
red building wires design
Building Wires Types
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Building Wires Construction Site
building wires construction site show
Building Wire Warehouse
building wire warehouse products
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 building wire has been successfully applied in many projects and has 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 IEC standard building wire?
IEC standard building wire refers to electrical wiring that meets the International Electrotechnical Commission (IEC) standards for quality, safety, and performance. These wires are designed for use in residential, commercial, and industrial electrical systems, ensuring safe and reliable electrical distribution. The IEC standards define the insulation materials, conductor sizes, and performance criteria for wiring to prevent electrical hazards, enhance durability, and improve overall system efficiency. -
Why is IEC certification important for building wire?
IEC certification ensures that building wire meets internationally recognized safety and performance standards. It guarantees that the wire is suitable for safe installation in electrical systems by adhering to strict criteria for insulation resistance, flame retardancy, and electrical conductivity. Using IEC-certified building wire ensures the wire will perform reliably over time, minimizing the risk of electrical faults, overheating, and fire hazards. -
What are the advantages of using IEC standard building wire?
Using IEC standard building wire offers several benefits, including higher safety standards, better performance, and international compliance. The wire is designed to withstand harsh environmental conditions, such as high temperatures, moisture, and mechanical stresses. It ensures reliable power transmission, prevents short circuits, and is suitable for use in various electrical applications. Additionally, IEC-certified wire helps in meeting regulatory requirements, making it a reliable choice for both residential and industrial installations. -
What types of building wire meet IEC standards?
IEC standard building wire comes in a variety of types based on voltage rating, conductor material, and application. Common types include:
1. Low Voltage Building Wire (up to 1 kV)
2. Medium Voltage Building Wire (1 kV to 35 kV)
3. Flexible Building Wire for dynamic applications
4. Fire-resistant and flame-retardant cables for enhanced safety
All of these are designed to meet IEC 60228 and other relevant standards to ensure safety, efficiency, and performance in electrical systems. -
How does IEC standard building wire differ from non-IEC certified wire?
IEC standard building wire undergoes rigorous testing to meet internationally recognized safety, performance, and durability standards. Non-IEC certified wire may lack consistent quality control and may not meet the necessary safety requirements for use in certain electrical systems. IEC-certified wire is tested for flame resistance, electrical performance, and mechanical strength, ensuring long-term reliability and reduced risks of electrical failure. Using non-IEC wire could result in suboptimal performance, safety risks, and potential legal issues in some regions.
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