XWA 220kV Cable | EHV XLPE Cable
Powering Long-Distance Transmission at Scale
ЕДА 220кВ кабель разработан для сверхвысокого напряжения (сверхвысокое напряжение) transmission systems, where stability, distance, and load intensity go far beyond conventional grid requirements. Оценка в 127/220 кВ (Один 245 кВ), this cable is designed to serve as a primary transmission artery, enabling efficient bulk power transfer between major substations and across regions. With enhanced insulation structure and optimized electrical design, XWA 220kV EHV cable minimizes dielectric losses while maintaining long-term reliability under continuous high electrical stress.
220Характеристики кВ-кабеля & Строительство
- Дирижер: Precision-compacted aluminium or copper conductors (630–2500 mm²) designed to reduce AC resistance and optimize current distribution under high load conditions.
- Изоляция: High-performance extruded XLPE (Сшитый полиэтилен) изоляция.
- Customizable Metallic Sheath (Необязательный): Configurable as extruded lead, copper wire screen with aluminum foil barrier, or welded aluminum, based on short-circuit and soil moisture needs.
- Внешняя оболочка: Extruded PE (Polyethylene) for robust defense against chemical agents and mechanical wear.
- Rated Voltages: Уо/У 127/220 кВ, maximum system voltage Um 245 кВ.
- Рабочая емкость: Начиная от 0.14 мкФ/км в 0.27 мкФ/км в зависимости от сечения проводника.
- Зарядный ток: Начиная от 5.6 А/км до 10.8 А/км.
XWA 220kV Cable Size Datasheet
| Тип проводника | Поперечное сечение (мм²) | Внешний диаметр (мм) | Вес нетто с свинцовой оболочкой (кг/м) |
|---|---|---|---|
| Алюминий | 630 | 107 | 18.9 |
| Медь | 630 | 103 | 23.1 |
| Алюминий | 1000 | 108 | 21.3 |
| Медь | 1000 | 111 | 27.9 |
| Алюминий | 1600 | 123 | 25.7 |
| Медь | 1600 | 127 | 36.6 |
| Алюминий | 2500 | 130 | 31.5 |
| Медь | 2500 | 134 | 48.0 |
Why Choose XWA for 220kV Transmission Projects?
220kV systems operate at a level where design margins are tighter and failure costs are significantly higher. Кабельный завод XWA focuses on engineering reliability into every layer of the cable system.
- Optimized Electric Field Control
The insulation and shielding structure is engineered to maintain a uniform electric field, minimizing partial discharge and extending operational lifespan under high electrical stress. - Low-Loss Transmission Efficiency
Carefully selected conductor materials and optimized geometry reduce both resistive and dielectric losses, improving efficiency over long-distance transmission routes. - Engineered for Complex Installations
Suitable for demanding environments such as underground corridors, buried ducts, and utility tunnels where heat dissipation and space constraints are critical factors. - 15+ Years Cable Manufacturing Expertise
With over a decade of specialization in high and extra high voltage cables, XWA has developed deep technical know-how and production stability for large-scale grid projects worldwide. - Factory-Direct Pricing Advantage
As a direct manufacturer, XWA eliminates intermediary costs, offering competitive cable pricing for large infrastructure projects while maintaining strict quality and compliance standards. - Complete System Support
Beyond cable supply, XWA provides integrated solutions including accessories, technical consultation, and installation guidance to ensure seamless project execution.
Typical Applications of 220kV Cable
220kV cables are used where high-capacity transmission, long-distance efficiency, and grid reliability are critical.
- Primary Transmission Corridors
Carrying bulk power between substations over long distances. The higher voltage reduces current and losses, improving transmission efficiency. Used with prefabricated joints and terminations for stable system connections. - Power Plant Evacuation Systems
Transferring continuous high output from large power plants into the grid. Commonly connected to GIS or AIS substations with matched cable accessories for insulation coordination. - Renewable Energy Export
Linking offshore wind and large solar plants to the grid. Often combined with fiber optic monitoring (ДТС) and water-blocked designs for real-time performance and environmental protection. - Underground Urban Transmission
Installed in tunnels, каналы, or direct burial where overhead lines are not feasible. High voltage allows more power transfer within limited space, supported by thermal and bonding system design. - Grid Reinforcement Projects
Increasing capacity of existing networks without new corridors. Typically applied with cross-bonding and surge protection systems to ensure safe and stable operation.
Установка & Поддерживать
Due to their size and operating stress, 220kV cables require precise installation planning:
- Радиус изгиба: Typically 2.7m – 3.4m, depending on conductor size.
- Thermal Environment: Installation design must consider soil thermal resistivity and heat dissipation.
- Handling Requirements: Heavy cable weight demands controlled laying tension and specialized equipment.
- System Design: Cable spacing and laying formation (trefoil/flat) directly impact current capacity.
Наша команда технических экспертов готова ответить на ваши вопросы, предоставлять индивидуальные решения, и сопровождаем ваш проект от планирования до установки.
FAQs of XWA 220kV EHV Cable
Why is 220kV considered extra high voltage?
А: Because it operates at a level where insulation design, electric field control, and system reliability require significantly more advanced engineering than lower voltage classes.
Is 220kV suitable for underground transmission?
А: Да. It is widely used in urban and environmentally sensitive areas, typically installed in ducts, туннели, or direct burial systems with proper thermal design.
How long is the service life of a 220kV cable?
А: Under proper design, установка, and operating conditions, XLPE-insulated 220kV cables typically have a срок службы 30–40 лет и более.
What makes 220kV cable design more complex than 132kV?
А: Higher voltage results in stronger electric fields, requiring thicker insulation, more precise shielding design, tighter manufacturing tolerances, and more rigorous testing procedures.
What other extra high voltage cables can XWA supply?
А: XWA offers a full EHV range with manufacturing capability up to 500kV, suitable for national grid and large-scale transmission projects.
Как ваш завод поддерживает конкурентоспособные цены на кабели сверхвысокого напряжения??
А: Потому что мы являемся прямым производителем с более чем 15 многолетний опыт оптимизации производства, устраняем сторонние и посредникские наценки. Эта модель прямого сотрудничества с покупателем позволяет нам предлагать высококонкурентные, экономически эффективные цены для заявок на инфраструктуру на национальном уровне при строгом соблюдении стандартов производительности и безопасности IEC..
Can the cable be customized per project?
А: Да. Conductor size, sheath type, and structural design can all be tailored to meet specific grid, environmental, and installation requirements.