N2XSY
Single-core XLPE medium-voltage cable, copper wire screen, PVC sheath, 6/10 to 20.8/36 kV
N2XSY is the copper MV cable with a PVC sheath for indoor use, substations and ducts (not longitudinally watertight). N2XSY is available in all five voltage classes. For wet ground choose N2XS(F)2Y. Supplied to order; the lead time is stated in the quote.
N2XSY is a single-core medium-voltage power cable with a bare stranded copper conductor, cross-linked polyethylene (XLPE) insulation, a copper wire screen with copper counter helix and a polyvinyl chloride (PVC) outer sheath, designed to IEC 60502-2 and DIN VDE 0276-620 (HD 620). It is used for fixed installation indoors, in switchgear and substations, in cable ducts, on cable ladders and trays, and for terminations and connections between transformers, switchgear and distribution boards in the 6/10 to 20.8/36 kV classes (Um 12 to 42 kV). The extruded inner and outer semi-conductive screens give a smooth electrical field; the copper wire screen carries earth-fault and capacitive currents. N2XSY is PVC-sheathed and not longitudinally watertight, so in wet ground we recommend the longitudinally watertight N2XS(F)2Y.
Also known as: medium voltage cable
Applications
- Switchgear, substations and indoor routes on cable ladders and trays.
- Connections between transformers, switchgear and distribution boards.
What to look out for
- Not longitudinally watertight: if the sheath is damaged, water can travel along the length of the cable. In wet ground we recommend N2XS(F)2Y.
- The aluminium counterpart is NA2XSY.
- Conductor
- Bare stranded round copper, class 2 acc. to IEC 60228 / DIN VDE 0295.
- Conductor screen
- Extruded semi-conductive compound (inner conductive layer).
- Insulation
- Cross-linked polyethylene (XLPE) acc. to HD 620 (compound DIX8); 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 (outer conductive layer) with semi-conductive tape.
- Metallic screen
- Copper wire screen (CWS) with copper counter helix; nominal screen cross-section per size (e.g. 16 / 25 / 35 mm²).
- Separator
- Binder tape over the screen.
- Outer sheath
- Polyvinyl chloride (PVC) acc. to HD 620 (compound DMV6), red.
- 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).
- Flame-retardant
- Acc. to IEC 60332-1-2 (single vertical cable).
- Min. bending radius, fixed
- 15 × outer diameter (single-core).
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 |
N2XSY or N2XS(F)2Y?
N2XSY
- red PVC sheath
- no swelling tapes
N2XS(F)2Y
- PE sheath
- swelling tapes at the screen
N2XSY has a red PVC sheath and no swelling tapes, so it is not longitudinally watertight. N2XS(F)2Y has swelling tapes at the screen and a PE sheath, and is made for direct burial. Choose N2XSY for switchgear, substations and indoor routes on trays and ladders. If the cable goes into the ground, especially wet ground, choose N2XS(F)2Y.
View N2XS(F)2Y →N2XSY or NA2XSY?
N2XSY
- copper conductor
- smaller cross-section
NA2XSY
- aluminium conductor
- larger cross-section
N2XSY has a copper conductor, NA2XSY aluminium. XLPE insulation, copper wire screen, red PVC sheath and the classes from 6/10 to 20.8/36 kV are the same. Aluminium is lighter and more economical, but needs a larger cross-section for the same current. Choose N2XSY where space is tight; NA2XSY where weight and cost weigh more.
View NA2XSY →
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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