NA2XS(F)2Y cable Es un cable de alimentación unipolar de media tensión con un conductor de aluminio trenzado., screened XLPE insulation, copper wire screen and black PE outer sheath. El (F) construction includes longitudinal water-blocking components in the screen area.
Fixed distribution feeders, substations and industrial power routes use this cable type where the installation design calls for an aluminium conductor and a water-blocked screened core. Tamaño del conductor, área de la pantalla, voltage and route conditions define the final configuration.
CONSTRUCCIÓN
- Conductor
- Aluminio trenzado, Clase 2
- Aislamiento
- XLPE con pantallas semiconductoras interior y exterior
- Pantalla metálica
- Copper wires with cross-connection tape; swellable components
- Funda exterior
- Black polyethylene; unarmoured reference design
CARACTERÍSTICAS
- Tensión de referencia
- 12/20 (24) kV
- Water blocking
- Longitudinal water blocking in the screen region; no separate radial moisture barrier
- Instalación
- Fixed underground, duct and industrial feeder routes
- Contexto estándar
- DIN VDE 0276-620 / alta definición 620; project-specific IEC requirements
NA2XS(F)2Y for Fixed Power Distribution
Voltaje, conductor/screen size and route conditions define the project configuration.
NA2XS(F)2Datos técnicos del cable Y
Datos de referencia recomendados. Final dimensions and ratings follow the approved project configuration; the selected rows are not a confirmed XWA production range.
| Tamaño del cable (mm²) | resistencia CC 20°C (Ω/km) | Aislamiento (mm) | Aprox.. DE (mm) | Aprox.. masa (kg/km) | Aire (A) | Suelo (A) |
|---|---|---|---|---|---|---|
| 1 incógnita 95/16 | 0.320 | 5.5 | 32 | 991 | 280 | 251 |
| 1 incógnita 150/25 | 0.206 | 5.5 | 35 | 1284 | 366 | 319 |
| 1 incógnita 240/25 | 0.125 | 5.5 | 39 | 1661 | 496 | 417 |
| 1 incógnita 300/25 | 0.100 | 5.5 | 41 | 1871 | 569 | 471 |
| 1 incógnita 400/35 | 0.0778 | 5.5 | 44 | 2324 | 660 | 535 |
| 1 incógnita 630/35 | 0.0469 | 5.5 | 51 | 3202 | 883 | 705 |
Single-core aluminium/XLPE/copper-wire-screen/PE, 12/20(24) kV. The second area in 1×240/25 identifies the metallic screen, not another phase conductor.
Reference ampacity: un circuito, tocando el trébol; air 30°C; suelo 20°C, resistividad térmica 1.0 K·m/W and burial depth 0.7 metro. Temperatura máxima de referencia del conductor: 90°C. Conductos, grouped circuits and bonding require a project calculation.
Longitudinal water blocking and three single-core circuits
Swellable components limit water movement along the cable after moisture enters. They do not repair sheath damage or establish a separate radial moisture barrier. Water-blocked conductors, radial barriers and immersion conditions require their own construction and evidence.
la notación 3×1×240 describes three individually sheathed single-core cables, each with a 240 mm² conductor. It is not a three-core assembly. Drum allocation, tacos, cable entries and screen connections follow that distinction.
Applications and Installation Conditions
Utility distribution, transformer-substation connections and industrial feeders are typical fixed-installation contexts. Protección mecánica, diseño térmico, end sealing and aluminium-compatible connections remain part of the cable system. Ordinary PE sheath is not a substitute for a specified flame-retardant or LSZH design.
Resistencia, partial-discharge and voltage-test records do not replace evidence for longitudinal water penetration or sheath integrity. The declared water-blocking construction and its test scope must agree. The official IEC scope provides standard context, not a VDE certificate or utility approval.
NA2XS(F)2Y and Related Constructions
| Modelo | Main difference |
|---|---|
| Cable NA2XSY | Aluminium conductor and PVC outer sheath instead of PE; longitudinal water blocking is not specified by the NA2XSY designation. |
| Cable N2XS2Y | Copper conductor instead of aluminium, with XLPE insulation and a PE sheath; longitudinal water blocking is not specified by the N2XS2Y designation. |
| NA2XS(Florida)2Y | Adds a laminated metallic moisture barrier beneath the PE sheath, providing radial moisture protection in addition to longitudinal water blocking. |
NA2XS(F)2Preguntas frecuentes sobre cables en Y
¿Qué hace? (F) mean in NA2XS(F)2Y?
It identifies longitudinal water blocking. The exact tape arrangement and tested scope follow the declared construction; it does not by itself specify a radial barrier or a water-blocked conductor.
Does an aluminium conductor mean an aluminium screen?
No. The reference uses an aluminium phase conductor and a copper wire metallic screen. Screen area follows earth-fault duty and bonding requirements.
Is 3×1×240 the same as a three-core cable?
No. It is three separate single-core cables. A three-core cable contains the three phase cores inside one common sheath.
Related: Cable de media tensión · Tipos y modelos de cables
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