N2XS(F)H Power Cable with LSZH Sheath Copper Conductor and Waterblocking for Medium Voltage Applications
N2XS(F)H cable is longitudinally waterblocking cable and N2XS(FL)H cable is dual longitudinal and radial waterblocking cable. The voltage is 10kV, 15kV, 20kV, and 30kV. These cables are commonly installed in cable ducts, providing them with additional mechanical protection. Where the N2XS(F)H and N2XS(FL)H versions are particularly important is in the event the ducts become waterlogged. The single and dual waterblocked layers are commonly a water-swellable tape and an additional water-swellable powder, unless destined for clean environments where powder-free cable construction is stipulated and when two tapes are used. These additional layers prevent any ingress of water from reaching the insulation layer and potentially impeding the performance of the underlying conductor.
| Parameter | 6/10 (12)kV | 8.7/15 (17.5)kV | 12/20 (24)kV | 18/30 (36)kV |
|---|---|---|---|---|
| Test Voltage | 21kV AC 50Hz (15 mins) | 30kV AC 50Hz (5 mins) | 42kV AC 50Hz (5 mins) | 63kV AC 50Hz (15 mins) |
| Temperature Rating | -20°C to +60°C | |||
| Permissible Conductor Operating Temperature | +90°C | |||
| Permissible Short Circuit Temperature up to 5 sec | 250°C | |||
| Minimum Bending Radius | 15 x overall diameter | |||
| Component | N2XS(F)H Cable | N2XS(FL)H Cable |
|---|---|---|
| CONDUCTOR | Class 2 stranded copper | Class 2 stranded copper |
| INSULATION | XLPE (Cross-linked Polyethylene) | XLPE (Cross-linked Polyethylene) |
| SCREEN | Copper wires and tape | Copper wires and tape |
| WATER-BLOCKING | Longitudinal Water-swellable tape either side of the screen | Layer 1 - Longitudinal Water-swellable tape either side of screen Layer 2 - Radial Waterblocking Al/PET bonded to sheath |
| OUTER SHEATH | LSZH (Low Smoke Zero Halogen) | LSZH (Low Smoke Zero Halogen) |
| No. of Cores | Nominal Cross Sectional Area (mm²) | Nominal Conductor Diameter (mm) | Number Wires Conductor (mm) | Nom. Thickness Semi-con. Layer (mm) | Nominal Insulation Thickness (mm) | Minimum Insulation Thickness | Nominal Diameter Over Insulation (mm) | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 35 | 16 | 6.9 | 7 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 19.1 |
| 1 | 50 | 16 | 8.1 | 10 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 20.3 |
| 1 | 70 | 16 | 9.7 | 14 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 21.9 |
| 1 | 95 | 16 | 11.4 | 19 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 23.6 |
| 1 | 120 | 16 | 12.7 | 19 x 2.97 | 0.5 | 0.4 | 5.5 | 4.85 | 24.9 |
| 1 | 150 | 25 | 14.5 | 19 x 3.20 | 0.5 | 0.4 | 5.5 | 4.85 | 26.7 |
| 1 | 185 | 25 | 15.9 | 27 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 28.1 |
| 1 | 240 | 25 | 18.6 | 48 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 30.8 |
| 1 | 300 | 25 | 20.7 | 61 x 2.62 | 0.5 | 0.4 | 5.5 | 4.85 | 32.9 |
| 1 | 400 | 35 | 23.5 | 61 x 2.97 | 0.5 | 0.4 | 5.5 | 4.85 | 35.7 |
| 1 | 500 | 35 | 26.5 | 61 x 3.29 | 0.5 | 0.4 | 5.5 | 4.85 | 38.7 |
| 1 | 630 | 35 | 30.2 | 61 x 3.80 | 0.5 | 0.4 | 5.5 | 4.85 | 42.9 |
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