20kV Cable for 12/20(24)kV Distribution Projects
20Cabo kV from XWA uses a 12/20(24)kV XLPE screened construction for transformer substations, alimentadores industriais, renewable energy collection systems and underground distribution networks.
XWA 20kV Cable
20Cabo kV corresponds to the IEC voltage class formally written as U0/Você(Um) = 12/20(24)kV. Some markets also call the same voltage class 22kV Cable, depending on the local distribution network.
XWA supplies this XLPE screened medium voltage cable with copper or aluminum conductors, single-core or three-core construction, copper tape or copper wire screen, optional armor and PVC, PE or LSZH sheath materials according to the project specification.
Classe de Tensão
12/20(24)kV for 20 kV and 22 kV medium voltage distribution systems under IEC-oriented specifications.
Construction Range
Single-core and three-core cable with copper or aluminum conductor, screened XLPE insulation and route-specific sheath or armor.
Project Use
Transformer substations, alimentadores industriais, municipal distribution, renewable energy collection and underground cable routes.
20kV XLPE Cable Construction
A typical 12/20(24)kV medium voltage cable includes a compacted conductor, tela condutora, Isolamento XLPE, tela de isolamento, tela metálica, bedding or separator layer, optional armor and outer sheath. XWA matches the final layer design to the core construction and installation route.
| Layer | Common Construction |
|---|---|
| Condutor | Copper or aluminum, Aula 2 stranded compacted conductor |
| Insulation system | Conductor screen, XLPE insulation and insulation screen |
| Tela metálica | Copper tape screen or copper wire screen with continuity design |
| Armor option | SWA, STA or AWA according to core type and project route |
| Bainha externa | PVC, Educação Física, MDPE, HDPE or LSZH where specified |
Technical Data for 20kV Cable
The data below is Recommended Reference Data for common 12/20(24)kV XLPE screened MV cable constructions under CEI 60502-2. XWA confirms final manufacturing data through the approved cable schedule, installation conditions and project specification.
Single-Core 20kV Cable Reference Data
| Size | DC resistance 20C (ohm/km) | Isolamento (milímetros) | Aprox.. OD (milímetros) | Aprox.. peso (kg/km) | Ampacity air 30C (UM) | Ampacity ground 20C (UM) |
|---|---|---|---|---|---|---|
| 1 x 50/16 | 0.387 | 5.5 | 29 | 1150 | 239 | 222 |
| 1 x 70/16 | 0.268 | 5.5 | 31 | 1350 | 297 | 271 |
| 1 x 95/16 | 0.193 | 5.5 | 32 | 1650 | 361 | 323 |
| 1 x 120/16 | 0.153 | 5.5 | 34 | 1900 | 416 | 367 |
| 1 x 150/25 | 0.124 | 5.5 | 35 | 2250 | 470 | 409 |
| 1 x 185/25 | 0.0991 | 5.5 | 37 | 2600 | 538 | 461 |
| 1 x 240/25 | 0.0754 | 5.5 | 40 | 3200 | 634 | 532 |
| 1 x 300/25 | 0.0601 | 5.5 | 42 | 3900 | 718 | 594 |
| 1 x 400/35 | 0.0470 | 5.5 | 45 | 4750 | 829 | 671 |
Three-Core 20kV Cable Reference Data
| Size | DC resistance 20C (ohm/km) | Isolamento (milímetros) | Aprox.. OD (milímetros) | Aprox.. peso (kg/km) | Ampacity air 30C (UM) | Ampacity ground 20C (UM) |
|---|---|---|---|---|---|---|
| 3 x 35 | 0.524 | 5.5 | 56-62 | 2600-3300 | 135-160 | 145-170 |
| 3 x 50 | 0.387 | 5.5 | 60-68 | 3300-4100 | 160-190 | 170-200 |
| 3 x 70 | 0.268 | 5.5 | 66-74 | 4300-5300 | 195-230 | 205-245 |
| 3 x 95 | 0.193 | 5.5 | 72-82 | 5600-6800 | 235-280 | 245-295 |
| 3 x 120 | 0.153 | 5.5 | 78-88 | 6800-8200 | 270-320 | 280-335 |
| 3 x 150 | 0.124 | 5.5 | 84-96 | 8200-9800 | 305-365 | 315-380 |
| 3 x 185 | 0.0991 | 5.5 | 92-104 | 9800-11800 | 350-420 | 360-430 |
| 3 x 240 | 0.0754 | 5.5 | 104-118 | 12500-15000 | 410-495 | 420-510 |
Applications and Route Conditions
XWA manufactures this voltage class for medium voltage distribution feeders, transformer substations, industrial power intake, wind and solar collection circuits, mining distribution routes, municipal underground networks and duct or tray installations.
Larger conductor sizes, thermal spacing and bonding design often point to single-core cable. Compact routes, shorter runs, indoor substations and installations that need combined cable handling often use three-core cable.
Underground or wet-route conditions can require PE sheath and water-blocking options. Projects that include smoke and halogen performance requirements can specify LSZH sheath.
Related MV Cable Pages
Perguntas frequentes
What is 12/20kV Cable?
20kV Cable is a medium voltage power cable with rated voltage U0/U(Um) de 12/20(24)kV. Distribution systems, transformer substations, industrial feeders and renewable energy collection routes use this voltage class.
Is 12/20kV the same as 20kV Cable?
In many IEC-based markets, 12/20(24)kV is the formal voltage designation behind the common market name. Some projects also use 22kV Cable as the market name for this voltage class.
Which standard applies to 12/20kV XLPE Cable?
CEI 60502-2 normally covers extruded-insulation medium voltage power cables in this voltage range. Project specifications can also include local utility requirements, national standards or additional test documentation.
Can this cable be single-core or three-core?
Sim. XWA supplies this voltage class in single-core and three-core constructions. Utility feeders and larger conductor sizes often use single-core cable, while compact route layouts often use three-core cable.
What conductor sizes are common for this voltage class?
Common copper or aluminum conductor sizes include 35mm2 to 400mm2 for many project schedules, with larger sizes possible depending on construction, current rating and installation conditions.
Can this cable be armoured?
Sim. Route designs can include steel wire armor, steel tape armor or aluminum wire armor where mechanical protection matters. Armor selection depends on single-core or three-core construction, fault-current design and installation route.
How does XWA prepare cable data for this voltage class?
XWA prepares the cable construction, dimensional data, current-rating discussion, drum schedule and test documentation according to the confirmed voltage class, material condutor, contagem de núcleos, screen design, armadura, sheath and installation route.
Contact XWA for 20kV Cable
XWA prepares project offers around voltage class, material condutor, core construction, screen type, armadura, sheath design, drum length and required standard.
Tensão: 12/20(24)kV Common names: 20Cabo kV / 22Cabo kV Padrão: CEI 60502-2 project specifications