High Voltage Cable for 66kV to 500kV Grid Projects
XLPE insulated high voltage cable for transmission lines, subestações, underground corridors, renewable energy grid connection and grid power systems.
Cabo de alta tensão XWA
As a high voltage cable manufacturer, XWA supplies 66kV to 500kV XLPE high voltage cables for grid transmission, substation connections and underground power corridors, with copper or aluminum conductors and metallic sheath options matched to project specifications.
XWA’s engineering team develops each HV cable construction according to the voltage class, tamanho do condutor, nível de isolamento, metallic sheath system, water-blocking requirements and route conditions for transmission, renewable energy and special installation projects.
HV Cable Product Selection
XWA organizes HV cable production by voltage class, conductor system, sheath design and route condition, so each product page reflects a practical manufacturing and specification range.






Cabo de alta tensão is produced for grid transmission, substation connection, renewable energy evacuation, industrial power intake and underground power corridors that require transmission-grade insulated cable systems. XWA supplies HV power cable designs for voltage classes from 66kV to 500kV, with XLPE insulation, copper or aluminum conductors, metallic shielding or sheath systems and water-blocking options for international transmission work.
For each HV cable design, XWA reviews the rated voltage, exigência de curto-circuito, bonding arrangement, ambiente de rota, drum length and project specification before confirming the cable construction and production arrangement.
Transmission Voltage
66kV, 110kV, 132kV, 220kV, 275kV and 500kV designs for grid and utility-level power systems.
Sistema XLPE selecionado
Fabricado com tela condutora, Isolamento XLPE, insulation screen and metallic sheath options for controlled electric stress.
Route-Based Design
Factory configuration covers underground, subestação, renewable grid connection, industrial intake and special transmission applications.
HV XLPE Cable Construction
XWA produces XLPE HV cable with a fully screened insulation system to control electric stress. A typical single-core underground high voltage cable includes a compacted copper or aluminum conductor, tela condutora, Isolamento XLPE, tela de isolamento, metallic screen or metallic sheath, water-blocking layers and an outer sheath suitable for the route environment.
| Condutor | Copper or aluminum compacted stranded conductor |
| Sistema de Isolamento | Tela do condutor, XLPE insulation and bonded insulation screen |
| Metallic Layer | Copper wire screen, corrugated aluminum sheath or lead sheath options |
| Water Blocking | Longitudinal water-blocking and radial water-barrier options |
| Bainha Externa | PEAD, PEMD, PVC, LSZH or semiconductive PE where specified |

HV Cable Voltage Range and Technical Data
XWA manufactures high voltage cable for transmission and grid-level power systems from 66kV to 500kV. CEI 60840 is normally used for extruded-insulation power cables above 30kV and up to 150kV, while IEC 62067 is normally used for extruded-insulation power cables above 150kV and up to 500kV. Factory documentation can be prepared around conductor size, nível de isolamento, metallic sheath design, bloqueio de água, bonding arrangement and routine testing requirements.
| Classe de Tensão | Designação de tensão comum | Padrão Aplicável | Página do produto |
|---|---|---|---|
| 66kV | 36/66(72.5)kV | CEI 60840 especificações do projeto | 66Cabo kV |
| 110kV | 64/110(123)kV | CEI 60840 especificações do projeto | 110Cabo kV |
| 132kV | 76/132(145)kV | CEI 60840 especificações do projeto | 132Cabo kV |
| 220kV | 127/220(245)kV | CEI 62067 especificações do projeto | 220Cabo kV |
| 275kV | 160/275(300)kV | CEI 62067 especificações do projeto | 275Cabo kV |
| 500kV | 290/500(550)kV | CEI 62067 especificações do projeto | 500Cabo kV |
Faixas de referência de fabricação
The technical data below summarizes common XWA manufacturing ranges for single-core XLPE high voltage cable by voltage class. Tamanho final do condutor, espessura do isolamento, metallic sheath design, diameter and ampacity are confirmed according to the approved cable schedule, condições de instalação e especificações de projeto aplicáveis.
| Classe de Tensão | Faixa de tamanho do condutor | Espessura de isolamento de referência | Aprox.. Diâmetro total | Faixa de Ampacidade de Referência |
|---|---|---|---|---|
| 66kV | 185-1600mm² | 10.5-13milímetros | 55-95milímetros | 360-1450UM |
| 110kV | 240-2500mm² | 16-18milímetros | 68-115milímetros | 430-1900UM |
| 132kV | 400-2500mm² | 17-20milímetros | 77-117milímetros | 485-2005UM |
| 220kV | 630-2500mm² | 24-27milímetros | 103-134milímetros | 622-1886UM |
| 275kV | 800-2500mm² | 27-30milímetros | 115-145milímetros | 760-2000UM |
| 500kV | 1000-3000mm² | 34-40milímetros | 145-185milímetros | 950-2600UM |

Subterrâneo, Submarine and Special Transmission Routes
As an international high voltage cable manufacturer, XWA configures underground cable for urban transmission corridors, substation connections, industrial intake lines, renewable energy grid connection and routes where overhead transmission is restricted. Underground cable design considers route length, soil thermal conditions, espaçamento de cabos, puxando a tensão, joint bay layout, sheath bonding and protection against water ingress.
For submarine HV cable, XWA configures route-specific mechanical protection, blindagem, water-blocking and installation requirements. See Cabo Submarino e HV Submarine Power/Optical Cable for this application group.
Categorias de cabos relacionadas
As categorias de cabos relacionadas incluem Cabo Submarino, Cabo aéreo, Cabo de alimentação MT, Cabo de alimentação de baixa tensão, Cabo ABC, Cabo de controle e Cabo de borracha.
Perguntas frequentes
What is a high voltage cable?
A high voltage cable is a fully insulated power cable system used for transmission-level voltage. It includes the conductor, semiconductive screens, main insulation, metallic screen or sheath and outer protection layers required to control electric stress and safely transmit power.
What voltage range does XWA high voltage cable cover?
XWA manufactures common high voltage project classes from 66kV to 500kV, including 66kV, 110kV, 132kV, 220kV, 275kV and 500kV cable designs.
Which standards apply to HV XLPE cable?
CEI 60840 is normally used for extruded-insulation power cables above 30kV and up to 150kV. CEI 62067 is normally used for extruded-insulation power cables above 150kV and up to 500kV. Project specifications may also include national grid or utility requirements.
Can HV cable be installed underground?
Sim. Underground high voltage cable is widely used for urban transmission routes, subestações, industrial intake lines and renewable energy grid connections. Cable spacing, resistividade térmica do solo, laying depth, bonding mode and route protection affect the final design.
How are higher HV cable classes different?
Higher high voltage cable classes such as 220kV, 275kV and 500kV require more demanding control of insulation thickness, metallic sheath design, acessórios, testing and installation conditions. XWA treats 220kV as a high voltage transmission cable class.
How does XWA control HV cable production quality?
XWA arranges HV cable production through joint manufacturing with qualified partner factories. XWA confirms the project specification, coordinates conductor preparation, extrusão de isolamento, screen and sheath configuration, dimensional checks and routine test records, and controls the agreed documentation and delivery scope.
How does XWA prepare an HV cable quotation?
XWA revisa designação de tensão, material e tamanho do condutor, comprimento da rota, método de instalação, metallic sheath or screen requirement, bonding arrangement, short-circuit level, material da bainha, drum length and required standard before preparing the cable offer.
Contact XWA for HV Cable Projects
XWA prepares HV cable offers around voltage class, material condutor, comprimento da rota, método de instalação, design da bainha e padrão exigido, com construção de cabo correspondente à especificação de projeto confirmada.
