Wires and Cables
Wires and Cables
RHZ1-2OL(S)-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV Specifications)
NPC Electric RHZ1-2OL(S)-AL Medium Voltage Power Cable (8.7/15kV, 12/20kV, 18/30kV) combines economy with special fire safety for demanding medium voltage networks. Built with aluminium conductors, thermosetting XLPE insulation, metallic screen, and specially formulated LSZH sheath with superior fire-retardant characteristics (S), it meets UNE 21123-4 and higher CPR classifications. The special LSZH sheath drastically reduces smoke and eliminates corrosive gases in fires. Lightweight aluminium minimizes costs and installation effort. Excellent partial discharge resistance, low tan delta, and thermal endurance ensure efficiency and longevity. Suitable for direct burial, ducts, or indoor use in high-risk areas, the RHZ1-2OL(S)-AL Medium Voltage Power Cable is favored for metro systems, data centers, public venues, and infrastructure demanding reliable medium voltage cabling with advanced fire protection, environmental compliance, and enhanced life-safety in populated or confined spaces.
RHZ1-2OL-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV)
RHZ1-2OL-AL Medium Voltage Power Cable (8.7/15kV, 12/20kV, 18/30kV) is an economical, fire-safe cable for medium voltage distribution. Featuring stranded aluminium conductors, cross-linked polyethylene (XLPE) insulation, metallic screen, and low smoke zero halogen (LSZH) outer sheath, it complies with UNE 21123-4 and CPR standards. In fire conditions, the LSZH sheath emits minimal smoke and no toxic halogen gases, ensuring safety in populated areas. Lightweight aluminium reduces costs and handling effort while providing reliable current capacity. Superior partial discharge resistance, low dielectric losses, and high thermal stability guarantee efficient, long-lasting performance. Suitable for direct burial, ducts, or indoor installations. The RHZ1-2OL-AL Medium Voltage Power Cable is widely used in utilities, hospitals, schools, tunnels, and infrastructure projects requiring cost-effective, environmentally friendly medium voltage cabling with enhanced fire safety and durability worldwide.
RHZ1-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV)
NPC Electric RHZ1-AL Medium Voltage Power Cable (8.7/15kV, 12/20kV, 18/30kV) provides economical fire safety for medium voltage networks. Built with aluminium conductors, thermosetting XLPE insulation, metallic screen, and advanced low smoke zero halogen (LSZH) sheath, it meets UNE 21123-4 and CPR requirements. During fires, it emits very low smoke and no corrosive gases, facilitating evacuation. Lightweight aluminium reduces costs and installation effort while delivering reliable current capacity. Superior partial discharge resistance, low tan delta, and thermal endurance ensure efficiency and longevity. Suitable for direct burial, ducts, or indoor use in sensitive areas, the RHZ1-AL Medium Voltage Power Cable is widely used in transportation hubs, data centers, public facilities, and infrastructure demanding reliable medium voltage cabling with enhanced fire protection, environmental compliance, and life-safety features in populated or confined spaces.
RHZ1-OL(AS)-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV)
RHZ1-OL(AS)-AL Medium Voltage Power Cable (8.7/15kV, 12/20kV, 18/30kV) is a lightweight cable with enhanced fire retardancy for critical medium voltage applications. Featuring stranded aluminium conductors, cross-linked polyethylene (XLPE) insulation, metallic screen, and low smoke zero halogen (LSZH) outer sheath with advanced fire behavior (AS designation), it complies with UNE 21123-4 and higher CPR classifications. In fire scenarios, it produces very low smoke and no toxic gases. Aluminium construction reduces weight and costs while ensuring reliable current capacity. Superior partial discharge resistance, low dielectric losses, and high thermal stability provide efficient, long-lasting performance. Suitable for direct burial, ducts, or indoor use in high-safety areas. The RHZ1-OL(AS)-AL Medium Voltage Power Cable is perfect for utilities, hospitals, schools, tunnels, and infrastructure projects requiring economical, advanced fire-safe medium voltage cabling with exceptional life-safety features and durability worldwide.
RHZ1-OL-AL Medium Voltage Power Cable(8.7/15kV, 12/20kV, 18/30kV)
Our RHZ1-OL-AL Medium Voltage Power Cable (8.7/15kV, 12/20kV, 18/30kV) provides economical fire safety for medium voltage networks. Built with aluminium conductors, thermosetting XLPE insulation, metallic screen, and advanced low smoke zero halogen (LSZH) sheath, it meets UNE 21123-4 and CPR requirements. During fires, it emits very low smoke and no corrosive gases, facilitating evacuation. Lightweight aluminium reduces costs and installation effort while delivering reliable current capacity. Superior partial discharge resistance, low tan delta, and thermal endurance ensure efficiency and longevity. Suitable for direct burial, ducts, or indoor use in sensitive areas, the RHZ1-OL-AL Medium Voltage Power Cable is widely used in transportation hubs, data centers, public facilities, and infrastructure demanding reliable medium voltage cabling with enhanced fire protection, environmental compliance, and life-safety features in populated or confined spaces.
XAI Armoured Medium Voltage Power Cable(6/10kV, 12/20kV, 18/30kV)
NPC Electric XAI Armoured Medium Voltage Power Cable (6/10kV, 12/20kV, 18/30kV) delivers protected, high-performance medium voltage transmission. Constructed with copper or aluminium conductors, thermosetting XLPE insulation, metallic screen, bedding, galvanised steel wire armour (SWA), and tough outer sheath, it meets IEC 60502-2 requirements. The SWA layer offers outstanding resistance to mechanical damage, enabling direct burial without conduits. Low transmission losses, high current rating, and excellent overload tolerance ensure optimal efficiency. Optional LSZH sheath and water-blocking for added safety and reliability. Flame-retardant and environmentally robust, the XAI Armoured Medium Voltage Power Cable is widely selected for power grids, manufacturing plants, wind/solar farms, and infrastructure demanding reliable, maintenance-free medium voltage cabling with enhanced mechanical safeguarding in challenging terrains or high-impact zones worldwide.
Duplex Service Drop Cable
The Duplex Service Drop Cable is a reliable overhead cable for secondary power distribution from the utility pole to the service entrance. Featuring two insulated phase conductors (aluminum or ACSR) twisted around a bare or covered neutral messenger wire, it offers excellent mechanical strength and weather resistance. Insulation options include XLPE, PE, or PVC for superior UV, moisture, and abrasion protection. Compliant with ASTM B-230, B-231, ICEA S-76-474, and ANSI/ICEA standards, this cable supports low-voltage applications up to 600V. Lightweight design facilitates easy installation with reduced sag and long spans. The Duplex Service Drop Cable ensures minimal power losses, high tensile strength from the messenger, and long service life in harsh outdoor conditions. Ideal for residential, commercial, and rural electrification projects requiring safe, cost-effective aerial service connections worldwide.
Quadruplex Service Drop Cable
NPC Electric Quadruplex Service Drop Cable offers efficient overhead three-phase service with neutral support. Comprising three-phase conductors (aluminum) insulated with XLPE or PE and helically twisted around a strong neutral messenger (ACSR, AAC, or covered aluminum), it meets ASTM, ICEA, and international standards. The messenger provides full self-support, allowing longer spans and reduced infrastructure costs. Premium insulation resists sunlight, moisture, and mechanical abrasion for decades of outdoor service. Lightweight and flexible, it simplifies installation with low sag. The Quadruplex Service Drop Cable ensures minimal losses, high mechanical endurance, and excellent weather performance up to 600V. Flame-retardant options enhance safety. Perfect for reliable power delivery in urban developments, commercial areas, street lighting, and temporary sites requiring safe, cost-effective aerial bundled solutions.
Triplex Service Drop Cable
The Triplex Service Drop Cable is designed for overhead power distribution from utility lines to residential and commercial service entrances. It typically consists of two insulated phase conductors and one bare or insulated neutral messenger conductor, twisted together to provide mechanical support and electrical reliability. The phase conductors are insulated with weather-resistant materials such as XLPE or PE, offering excellent resistance to UV radiation, moisture, and environmental aging. Engineered for dependable performance, the Triplex Service Drop Cable ensures stable power delivery while minimizing line losses and installation complexity. Its lightweight yet robust construction allows for easy stringing across poles and buildings, while maintaining adequate tensile strength for long-span applications. Manufactured in accordance with applicable utility and industry standards, this cable is widely used in low-voltage overhead distribution networks where safety, durability, and long service life are essential.In-Depth Analysis
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)
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.
Insulation Protection System
Use flame-retardant, wear-resistant and corrosion-resistant polymer insulation materials to meet the safe operation requirements in different environments.
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.
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.
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.
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.
Environmental Adaptability Analysis
NPC wires and cables 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
Wires & Cables Manufacturer
Wires & Cables Products
Wires & Cables Testing
Efficient Logistics & Timely Delivery
Testing and Certification
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
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
FAQ From Customers
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What is the difference between wires and cables?
A wire is a single conductor that carries electricity, while a cable is a group of two or more insulated electrical wires bundled together. Wires and cables are used to transmit electrical power or signals, but cables provide better protection and are often used where safety and durability are critical. -
How do I choose the right electrical cable for my project?
When selecting an electrical cable, consider the required voltage, current capacity, installation environment, and safety standards. For example, choose power cables for high-load transmission, solar cables for photovoltaic systems, or insulated electrical wires for indoor wiring. Always ensure the cable meets international standards such as IEC, UL, or ISO. -
What are the common types of wires and cables?
Common types include bare conductor cables for overhead transmission, power cables for industrial and residential electricity supply, solar cables for renewable energy systems, insulated cables for building wiring, grounding wires for safety, and submarine cables for undersea power transmission. -
Why is testing important for electrical wires and cables?
Testing ensures wires and cables meet safety, durability, and performance standards. High-quality electrical cables undergo conductivity, insulation, fire resistance, and mechanical strength tests to guarantee reliable operation. Properly tested electrical wires reduce energy loss, prevent short circuits, and increase system safety. -
Can NPC Electric provide customized wires and cables solutions?
Yes. With over 30 years of manufacturing experience, NPC Electric offers customized wires and cables, including electrical cables and electrical wires designed to specific voltage levels, insulation types, and installation conditions. Our engineering team supports custom solutions for power transmission, industrial automation, renewable energy, and infrastructure projects worldwide.