Wires and Cables
Building Wire
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.
THHN AND THWN
Electrical wire THHN THWN is used in new construction projects or rewiring tasks in 600-volt systems. Versatile and usable in both wet and dry locations, THHN/THWN-2 is an excellent choice for a wide range of electrical installations. THHN/THWN-2 conductors can withstand temperatures up to 90°C in dry environments and up to 75°C in the presence of oil or coolant. Its outer nylon jacket is smooth and fine, ensuring easy installation by reducing friction during pulling. This feature is especially useful for long or challenging runs.
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
Control Cable
Control Cable Design
MV Power Cable
MV Power Cable Product
Mining Cable
Mining Cable Construction
ABC Cable
ABC Cable Product
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 a Building Wire?
Building wire is an electrical cable used for power distribution and electrical wiring in residential, commercial, and industrial buildings. It is designed to carry electricity to power outlets, lighting circuits, and appliances. Typically made from copper or aluminum conductors, building wire is insulated with materials like PVC or XLPE to ensure safety and prevent electrical hazards. This wire is crucial for ensuring a safe electrical system, providing the necessary connections for reliable power delivery throughout a building. -
What types of building wire are available?
There are several types of building wire designed for different applications:
1. Copper Building Wire: Known for its high conductivity, copper wires are ideal for residential and commercial applications where efficiency is critical.
2. Aluminum Building Wire: A cost-effective alternative to copper, aluminum wires are lighter and suitable for long-distance power transmission.
3. Thermoplastic and Thermoset Wires: Used in indoor wiring, these wires have durable insulation that resists heat, moisture, and abrasion.
4. MC (Metal Clad) Wire: Designed for industrial environments, MC wire provides added protection with a metallic sheath for use in high-risk areas. -
What is the difference between low voltage and high voltage building wire?
Low-voltage building wire is designed for electrical systems that operate below 1kV (e.g., residential and light commercial wiring), while high-voltage building wire is built for systems that carry voltages above 1kV, typically used in industrial applications or power distribution systems. High-voltage wires have thicker insulation and are designed to handle greater electrical stresses. Both types of wires are designed to ensure safety and reliable performance, but differ in their electrical capacity and construction materials. -
Why is copper used in building wire?
Copper is commonly used in building wire due to its excellent electrical conductivity. Copper has the ability to carry more electricity with lower resistance compared to other metals, making it the ideal choice for high-performance wiring. Additionally, copper wire is highly durable, corrosion-resistant, and flexible, which makes it easier to install and ensures long-lasting performance in residential and commercial installations. -
How do I choose the right building wire for my project?
When choosing building wire, consider the voltage requirements, the environment in which the wire will be used (indoor or outdoor), and the ampacity needed for the electrical load. For most residential applications, copper wire is preferred for efficiency, while aluminum wire is often used for larger systems due to its cost-effectiveness. Additionally, ensure that the wire complies with relevant safety standards (e.g., UL, IEC certifications). Always consult an electrician or professional to ensure that the wire meets local building codes and is properly rated for your needs.
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