6/10kV N2XSEY XLPE Insulated Medium Voltage Power Cables
Product Overview
The N2XSEY designates a German-standard medium voltage cable with triple-layer screened construction:
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N: Normenleitung (standard cable)
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2X: XLPE insulation
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S: Copper wire screen
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E: Copper tape screen
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Y: PVC sheath
This configuration provides exceptional electrical stress control, making it ideal for 6-10kV distribution networks where partial discharge suppression and EMI protection are critical. The robust copper screening ensures fault current capacity up to 25kA for 1s.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | U<sub>0</sub>/U = 6/10kV (U<sub>m</sub>: 12kV) |
| Standards | DIN VDE 0276-620, HD 620, EN 60228 |
| Flame Performance | IEC/EN 60332-1-2 |
| Impulse Withstand | 75kV |
| Temp. Range | Fixed: -20°C to +70°C Flexed: -5°C to +70°C |
| Short Circuit | 250°C (5s max) |
| Bending Radius | 15 × OD |
Cable Construction
1. Conductor
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Material: Compacted copper (Class 2 per EN 60228)
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Structure: Stranded, compact round
2. Semi-Conductive Layers
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Conductor screen: Equipotential stress control
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Insulation screen: PD suppression (>1pC)
3. Insulation
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Material: XLPE
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Thickness: 3.4mm (constant across 25-500mm²)
4. Metallic Screen
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Copper wire braid + helically applied copper tape
5. Outer Sheath
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Standard: PVC (ST1)
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Optional: HDPE (UV-resistant)
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Color: RAL 3000 Red
Technical Data Table
| Cross-Section (mm²) | Conductor Ø (mm) | Approx. OD (mm) | Weight (kg/km) | Current Rating* (A) |
|---|---|---|---|---|
| 25 | 6.0 | 48.0 | 4,175 | 180 |
| 35 | 7.2 | 50.8 | 4,733 | 220 |
| 50 | 8.4 | 53.8 | 5,491 | 265 |
| 70 | 10.0 | 57.6 | 6,446 | 320 |
| 95 | 11.7 | 61.5 | 7,530 | 380 |
| 120 | 13.1 | 64.9 | 8,628 | 435 |
| 150 | 14.6 | 68.3 | 9,794 | 500 |
| 185 | 16.3 | 72.6 | 11,326 | 570 |
| 240 | 18.5 | 79.2 | 14,268 | 670 |
| 300 | 20.7 | 84.8 | 16,641 | 750 |
| 400 | 23.8 | 92.3 | 20,362 | 870 |
| 500 | 26.6 | 99.3 | 24,203 | 980 |
| *Based on IEC 60502-2 (40°C ambient, 0.7m burial) |
Key Features
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Partial Discharge Control: <5pC at 1.5U<sub>0</sub>
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EMI Shielding: 98% screening efficiency
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Moisture Resistance: Longitudinal water-blocking design
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Thermal Cycling: Withstands ΔT=100°C without degradation
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Corrosion Protection: PVC sheath prevents electrochemical corrosion
Application Environments
| Installation Type | Requirements |
|---|---|
| Direct Burial | Minimum depth: 0.7m (trench with sand bed) |
| Cable Ducts | Max. pulling tension: 50N/mm² |
| Power Stations | Clearance from heat sources: >300mm |
| Industrial Plants | Chemical resistance: pH 4-10 |
| Outdoor Installations | UV-stabilized sheath option available |
Engineering Selection Guide
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Fault Current Calculation:
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I<sub>sc</sub> = k × S / √t (k=115 for copper)
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Example: 240mm² cable = 115×240 = 27.6kA for 1s
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Voltage Drop Verification:
ΔU(%) = √3 × I<sub>b</sub> × L × (Rcosφ + Xsinφ) / 10 × U<sub>n</sub>-
R = 0.075Ω/km (for 150mm²)
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X = 0.101Ω/km
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Bending Radius Compliance:
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During installation: 20×OD
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Post-installation: 15×OD
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Certifications:
• CE Marking • ISO 9001:2015 • VDE Test Certificate
Packaging:
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Export-grade steel-wood drums
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Anti-corrosion vapor barrier
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Custom lengths available
Ordering Information:
*Available in 25-500mm² cross-sections. Request project-specific short-circuit calculations and datasheets.*