N2XS(F)2Y
Single-core medium-voltage XLPE power cable, copper conductor, copper wire screen, longitudinally watertight, PE sheath, 6/10 to 20.8/36 kV
N2XS(F)2Y is the copper MV cable with a longitudinally watertight (F) screen and a PE sheath, for distribution and utility networks. The aluminium counterpart is NA2XS(F)2Y (comparable to EAXeCWB). N2XS(F)2Y is available in all five voltage classes. Supplied to order; the lead time is stated in the quote.
N2XS(F)2Y is a single-core, cross-linked polyethylene (XLPE) insulated medium-voltage power cable for public and industrial distribution and utility networks. The compacted stranded copper conductor carries an extruded semi-conductive conductor screen, the XLPE insulation and an extruded semi-conductive insulation screen; a concentric copper wire screen (CWS) with a counter-helix copper tape forms the metallic screen and earth/short-circuit path. The (F) design is longitudinally watertight: swellable water-blocking tape in the screen layer stops water from travelling along the cable, and a polyethylene (2Y) outer sheath completes the cable. It is suitable for direct burial, installation in ducts and in air, in the 6/10 to 20.8/36 kV classes.
Also known as: medium voltage cable
Applications
- Public and industrial distribution: direct burial, ducts and in air.
- Circuits where copper is preferred over aluminium.
What to look out for
- PE sheath (2Y), longitudinally watertight: suitable for wet ground.
- Choose the voltage class based on the Um of the network (12, 17.5, 24, 36 or 42 kV): insulation thickness runs from 3.4 to 8 mm; at 20.8/36 kV it is available on request. The outer diameter and the size of joints and terminations change with it.
- Conductor
- Circular stranded, compacted plain copper, class 2 (RM) acc. to IEC 60228.
- Conductor screen
- Extruded semi-conductive compound, bonded to the insulation.
- Insulation
- Cross-linked polyethylene (XLPE), nominal thickness per voltage class (3.4 mm at 6/10 kV, 4.5 mm at 8.7/15 kV, 5.5 mm at 12/20 kV, 8.0 mm at 18/30 kV; on request at 20.8/36 kV).
- Insulation screen
- Extruded semi-conductive compound, bonded to the insulation.
- Metallic screen
- Concentric copper wire screen (CWS) with a counter-helix copper tape; nominal screen cross-section 16 to 50 mm² according to conductor size. Longitudinal water barrier (F): a semi-conductive swellable water-blocking tape under the wire screen and, over it, a second water-blocking tape or a separating tape, depending on the manufacturer (longitudinally watertight).
- Outer sheath
- Polyethylene (2Y / MDPE), black or red; halogen-free.
- Rated voltage Uo/U
- 6/10 (12) to 20.8/36 (42) kV.
- Test voltage
- 3.5 × Uo for 5 min (routine test acc. to IEC 60502-2): 21 kV at 6/10, 30.5 kV at 8.7/15, 42 kV at 12/20 and 63 kV at 18/30 kV; on request at 20.8/36 kV.
- Standard
- IEC 60502-2 up to and including 18/30 kV; DIN VDE 0276-620 (HD 620 section 10-C) for 6/10, 12/20 and 18/30 kV; 20.8/36 kV constructed following DIN VDE 0276-620; conductors acc. to IEC 60228.
- Max. conductor temperature
- +90 °C (normal operation).
- Max. short-circuit temperature
- +250 °C (max. 5 s).
- Min. bending radius, single-core
- 15 × outer diameter.
Voltage classes
| Voltage class Uo/U | Highest voltage Um | Insulation nom. |
|---|---|---|
| 6/10 kV | 12 kV | 3.4 mm |
| 8.7/15 kV | 17.5 kV | 4.5 mm |
| 12/20 kV | 24 kV | 5.5 mm |
| 18/30 kV | 36 kV | 8.0 mm |
| 20.8/36 kV | 42 kV | on request |
N2XS(F)2Y or NA2XS(F)2Y?
N2XS(F)2Y
- copper conductor
- smaller cross-section
NA2XS(F)2Y
- aluminium conductor
- larger cross-section
N2XS(F)2Y has a copper conductor, NA2XS(F)2Y aluminium; screen, swelling tapes, PE sheath and the classes from 6/10 to 20.8/36 kV are the same. Copper carries the same current with a smaller cross-section. Aluminium is lighter and more economical, and therefore common in distribution networks. Choose N2XS(F)2Y where the cable or the termination must stay as compact as possible.
View NA2XS(F)2Y →N2XS(F)2Y or N2XSY?
N2XS(F)2Y
- longitudinally watertight
- PE sheath
N2XSY
- not longitudinally watertight
- PVC sheath
N2XS(F)2Y has swelling tapes at the wire screen and a PE sheath: longitudinally watertight and suitable for direct burial, including wet ground. N2XSY has a PVC sheath and is not longitudinally watertight. Indoors, in substations and in ducts, N2XSY will do. In the ground, especially permanently wet ground, choose N2XS(F)2Y.
View N2XSY →
NA2XS(F)Y
Single-core aluminium XLPE MV cable, copper wire screen, longitudinally watertight, PVC sheath, 6/10 to 18/30 kV
Lead time: On request; the lead time is stated in the quote.
EAXeCWB
Single-core Al XLPE MV cable, Cu wire screen, longitudinally watertight, 8.7/15 to 20.8/36 kV
Lead time: On request; the lead time is stated in the quote.
EAXeCGB
Single-core Al XLPE MV cable, Cu wire screen, longitudinally watertight, halogen-free sheath, 8.7/15 to 20.8/36 kV
Lead time: On request; the lead time is stated in the quote.
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