At Hangzhou Yongchuang Building Materials Technology Co., Ltd. (Yongchuang), we manufacture high-performance extra high voltage cable. Our products meet the strict demands of modern high-voltage and ultra-high-voltage electrical grids. They are designed for critical applications like urban underground networks and cross-waterway transmission. These cable systems deliver exceptional reliability and voltage ratings up to 500kV. By adhering to international quality standards, our transmission solutions empower utility companies and EPC contractors globally. We help you build robust, efficient, and future-proof electrical infrastructures.
As grid modernizations accelerate globally, maximizing performance while minimizing conductor resistance is critical. Our high-voltage designs leverage state-of-the-art materials and advanced manufacturing processes. This maximizes performance while minimizing conductor resistance. You might be expanding an urban utility network. Or, you could be establishing a connection from an offshore energy plant. In either case, our transmission cable solutions provide the necessary mechanical and electrical integrity. We ensure uninterrupted power transmission for your most demanding projects.
Selecting the right cable is crucial for ensuring network efficiency and preventing dielectric breakdown. Our engineered extra high voltage cable configurations utilize high-purity copper or aluminum conductors. These conductors are wrapped in advanced cross-linked polyethylene (XLPE) insulation. This material offers superior thermal and electrical properties. Below is an overview of our core transmission classes tailored for high-load utility projects:
| Cable Class | Voltage Range | Insulation & Armoring | Key Applications |
|---|---|---|---|
| 110kV/220kV XLPE Power Cable | 110kV to 220kV | XLPE Insulation, Corrugated Aluminum/Lead Sheath, Waterproof Tape | Urban underground grids, power station lead-outs, direct burial tunnels |
| 500kV Ultra High Voltage Cable | Up to 500kV (and above) | High-Purity XLPE, Segmented Copper/Conductors, Lead Alloy Sheathing | Bulk power long-distance transmission, heavy utility backbones |
| Submarine Power Cable | Medium to High Voltage | Steel Wire Armoring, Lead/Aluminium Sheathing, Radial Water-Blocking | Cross-waterway transmission, offshore wind farm grid connections |
Our 110kV and 220kV XLPE insulated lines are specifically designed for harsh environments. They survive extreme direct burial, tunnel laying, and underground trenching conditions. These extra high voltage cable products feature low eccentricity for uniform electrical field distribution. This prevents localized stress and dielectric breakdown. Moisture ingress can cause water treeing in XLPE layers. To combat this, we offer advanced radial and longitudinal water-blocking protections. These are paired with rugged corrugated aluminum or lead sheathing. This robust multi-layer design ensures absolute dry operation in high water table areas.
For demanding power transmission applications, our 500kV extra-high-voltage power cable systems and submarine cable solutions represent our advanced manufacturing capabilities. We utilize high-conductivity copper and premium-grade aluminum conductors combined with advanced XLPE insulation systems. These extra-high-voltage power cables are designed to reduce transmission losses while providing excellent current-carrying capacity, making them suitable for long-distance overland and cross-waterway power transmission. Our submarine cables feature specialized steel wire armoring and hermetically sealed moisture barriers to withstand underwater pressure, tidal movements, and corrosive marine environments. This ensures reliable power transmission between offshore generation facilities and onshore power grids.
Navigating international utility tenders requires comprehensive technical support. As a professional high-voltage and extra-high-voltage power cable manufacturer, Yongchuang provides dedicated engineering support for electrical infrastructure projects. We assist EPC contractors, municipal authorities, and utility developers throughout the bidding process. Our experienced engineering team provides timely technical support, customized electrical parameters, precise CAD drawings, and comprehensive compliance documentation. Whether your project requires compliance with IEC, UL (where applicable), or regional grid standards, our customized cable solutions help ensure your technical proposals remain competitive and fully compliant.
We invite global procurement managers and contractors to engage with our engineering team during the early design stage. Factory-direct technical optimization helps reduce material costs while maintaining safety, reliability, and performance. Contact our sales team today to request customized CAD drawings, technical datasheets, and a no-obligation quotation.
Every Far east high-voltage and extra-high-voltage power cable is engineered to withstand severe environmental and mechanical stresses during continuous operation. Our advanced material technology provides specialized outer sheathing options with outstanding resistance to chemical corrosion, extreme temperatures, and mechanical impact. Utilizing high-quality XLPE insulation, reliable metallic sheathing, and robust armor systems, our cable products are designed for a service life exceeding 30 years under normal operating conditions. This long-term durability helps reduce maintenance costs while ensuring reliable power transmission in demanding environments.
Superior Thermal Stability: Continuous operating conductor temperature up to 90°C and short-circuit temperature up to 250°C.
Advanced Corrosion Resistance: Sheathing materials designed to resist soil chemicals, industrial oils, and marine saltwater environments.
High Mechanical Protection: Steel wire armor or corrugated aluminum sheath provides excellent protection against soil pressure, impact loads, and external crushing forces.
Transporting heavy high-voltage power cables across continents requires meticulous logistics planning and robust export packaging. Each shipment is packed on steel-wood composite drums or all-steel drums, depending on cable size and transportation requirements. Waterproof sealing is applied to all cable ends to protect the insulation system from moisture ingress during transportation and long-term storage. Our professional logistics management and robust packaging methods help ensure every shipment arrives safely by sea, rail, road, or air.
Our XLPE insulated high-voltage and extra-high-voltage power cables are manufactured using premium materials and advanced production processes. They are designed for a service life of more than 30 years under normal operating conditions.
Yes. Our engineering team can customize conductor size, insulation systems, metallic sheathing, and armor configurations according to project requirements. We provide cable solutions for tunnels, direct-buried installations, submarine applications, and corrosive industrial environments. Radial and longitudinal water-blocking systems, as well as chemical-resistant sheathing materials, are available upon request.
We provide comprehensive technical support for international power transmission projects, including detailed technical datasheets, professional CAD drawings, and project-specific certification support. Our products can be manufactured to comply with IEC, UL (where applicable), and other regional standards, helping customers prepare competitive and compliant tender documents.
All high-voltage and extra-high-voltage power cables are packaged on steel-wood composite drums or all-steel drums according to cable size and transportation requirements. Waterproof sealing is applied to all cable ends, and appropriate transportation protection measures are implemented to minimize movement and prevent damage during long-distance maritime shipment.
At Hangzhou Yongchuang Building Materials Technology Co., Ltd. (Yongchuang), we manufacture high-performance extra high voltage cable. Our products meet the strict demands of modern high-voltage and ultra-high-voltage electrical grids. They are designed for critical applications like urban underground networks and cross-waterway transmission. These cable systems deliver exceptional reliability and voltage ratings up to 500kV. By adhering to international quality standards, our transmission solutions empower utility companies and EPC contractors globally. We help you build robust, efficient, and future-proof electrical infrastructures.
As grid modernizations accelerate globally, maximizing performance while minimizing conductor resistance is critical. Our high-voltage designs leverage state-of-the-art materials and advanced manufacturing processes. This maximizes performance while minimizing conductor resistance. You might be expanding an urban utility network. Or, you could be establishing a connection from an offshore energy plant. In either case, our transmission cable solutions provide the necessary mechanical and electrical integrity. We ensure uninterrupted power transmission for your most demanding projects.
Selecting the right cable is crucial for ensuring network efficiency and preventing dielectric breakdown. Our engineered extra high voltage cable configurations utilize high-purity copper or aluminum conductors. These conductors are wrapped in advanced cross-linked polyethylene (XLPE) insulation. This material offers superior thermal and electrical properties. Below is an overview of our core transmission classes tailored for high-load utility projects:
| Cable Class | Voltage Range | Insulation & Armoring | Key Applications |
|---|---|---|---|
| 110kV/220kV XLPE Power Cable | 110kV to 220kV | XLPE Insulation, Corrugated Aluminum/Lead Sheath, Waterproof Tape | Urban underground grids, power station lead-outs, direct burial tunnels |
| 500kV Ultra High Voltage Cable | Up to 500kV (and above) | High-Purity XLPE, Segmented Copper/Conductors, Lead Alloy Sheathing | Bulk power long-distance transmission, heavy utility backbones |
| Submarine Power Cable | Medium to High Voltage | Steel Wire Armoring, Lead/Aluminium Sheathing, Radial Water-Blocking | Cross-waterway transmission, offshore wind farm grid connections |
Our 110kV and 220kV XLPE insulated lines are specifically designed for harsh environments. They survive extreme direct burial, tunnel laying, and underground trenching conditions. These extra high voltage cable products feature low eccentricity for uniform electrical field distribution. This prevents localized stress and dielectric breakdown. Moisture ingress can cause water treeing in XLPE layers. To combat this, we offer advanced radial and longitudinal water-blocking protections. These are paired with rugged corrugated aluminum or lead sheathing. This robust multi-layer design ensures absolute dry operation in high water table areas.
For demanding power transmission applications, our 500kV extra-high-voltage power cable systems and submarine cable solutions represent our advanced manufacturing capabilities. We utilize high-conductivity copper and premium-grade aluminum conductors combined with advanced XLPE insulation systems. These extra-high-voltage power cables are designed to reduce transmission losses while providing excellent current-carrying capacity, making them suitable for long-distance overland and cross-waterway power transmission. Our submarine cables feature specialized steel wire armoring and hermetically sealed moisture barriers to withstand underwater pressure, tidal movements, and corrosive marine environments. This ensures reliable power transmission between offshore generation facilities and onshore power grids.
Navigating international utility tenders requires comprehensive technical support. As a professional high-voltage and extra-high-voltage power cable manufacturer, Yongchuang provides dedicated engineering support for electrical infrastructure projects. We assist EPC contractors, municipal authorities, and utility developers throughout the bidding process. Our experienced engineering team provides timely technical support, customized electrical parameters, precise CAD drawings, and comprehensive compliance documentation. Whether your project requires compliance with IEC, UL (where applicable), or regional grid standards, our customized cable solutions help ensure your technical proposals remain competitive and fully compliant.
We invite global procurement managers and contractors to engage with our engineering team during the early design stage. Factory-direct technical optimization helps reduce material costs while maintaining safety, reliability, and performance. Contact our sales team today to request customized CAD drawings, technical datasheets, and a no-obligation quotation.
Every Far east high-voltage and extra-high-voltage power cable is engineered to withstand severe environmental and mechanical stresses during continuous operation. Our advanced material technology provides specialized outer sheathing options with outstanding resistance to chemical corrosion, extreme temperatures, and mechanical impact. Utilizing high-quality XLPE insulation, reliable metallic sheathing, and robust armor systems, our cable products are designed for a service life exceeding 30 years under normal operating conditions. This long-term durability helps reduce maintenance costs while ensuring reliable power transmission in demanding environments.
Superior Thermal Stability: Continuous operating conductor temperature up to 90°C and short-circuit temperature up to 250°C.
Advanced Corrosion Resistance: Sheathing materials designed to resist soil chemicals, industrial oils, and marine saltwater environments.
High Mechanical Protection: Steel wire armor or corrugated aluminum sheath provides excellent protection against soil pressure, impact loads, and external crushing forces.
Transporting heavy high-voltage power cables across continents requires meticulous logistics planning and robust export packaging. Each shipment is packed on steel-wood composite drums or all-steel drums, depending on cable size and transportation requirements. Waterproof sealing is applied to all cable ends to protect the insulation system from moisture ingress during transportation and long-term storage. Our professional logistics management and robust packaging methods help ensure every shipment arrives safely by sea, rail, road, or air.
Our XLPE insulated high-voltage and extra-high-voltage power cables are manufactured using premium materials and advanced production processes. They are designed for a service life of more than 30 years under normal operating conditions.
Yes. Our engineering team can customize conductor size, insulation systems, metallic sheathing, and armor configurations according to project requirements. We provide cable solutions for tunnels, direct-buried installations, submarine applications, and corrosive industrial environments. Radial and longitudinal water-blocking systems, as well as chemical-resistant sheathing materials, are available upon request.
We provide comprehensive technical support for international power transmission projects, including detailed technical datasheets, professional CAD drawings, and project-specific certification support. Our products can be manufactured to comply with IEC, UL (where applicable), and other regional standards, helping customers prepare competitive and compliant tender documents.
All high-voltage and extra-high-voltage power cables are packaged on steel-wood composite drums or all-steel drums according to cable size and transportation requirements. Waterproof sealing is applied to all cable ends, and appropriate transportation protection measures are implemented to minimize movement and prevent damage during long-distance maritime shipment.
