N2XSEY cable is a three-core medium-voltage power cable with stranded copper conductors, screened XLPE insulation and a common PVC outer sheath. Three phase cores form one assembled cable for fixed distribution.
The reference CU/XLPE/CTS/PVC construction uses metallic screening but no armour. The shared sheath distinguishes it from a circuit of three separate single-core cables and changes handling mass, cable-entry dimensions and installation geometry.
СТРОИТЕЛЬСТВО
- Дирижеры
- Three stranded copper phase conductors
- Insulated cores
- Semiconductive screens and XLPE insulation
- Metallic screens
- Copper tape screening in the reference construction
- Assembly
- Filler and common PVC sheath; небронированный
ХАРАКТЕРИСТИКИ
- Reference voltage
- 12/20 kV for the displayed dataset
- Core layout
- Three screened cores in one cable body
- Thermal reference
- 90°C maximum operating conductor temperature in the source design
- Standard context
- МЭК 60502-2 and relevant VDE/HD project requirements
N2XSEY for Fixed Power Distribution
Напряжение, conductor/screen size and route conditions define the project configuration.
N2XSEY Cable Technical Data
Рекомендуемые справочные данные. Final dimensions and ratings follow the approved project configuration; the selected rows are not a confirmed XWA production range.
| Размер кабеля (мм²) | сопротивление постоянному току 20°С (Ом/км) | Приблизительно. ИЗ (мм) | Приблизительно. масса (кг/км) | Воздух (А) | Земля (А) |
|---|---|---|---|---|---|
| 3 х 95/16 | 0.1930 | 67.0 | 6900 | 326 | 316 |
| 3 х 150/25 | 0.1240 | 74.5 | 9250 | 426 | 404 |
| 3 х 185/25 | 0.0991 | 78.5 | 10650 | 488 | 457 |
| 3 х 240/25 | 0.0754 | 85.0 | 13000 | 576 | 532 |
| 3 х 300/25 | 0.0601 | 90.0 | 15250 | 654 | 599 |
| 3 х 400/35 | 0.0470 | 98.0 | 19100 | 750 | 685 |
Three-core CU/XLPE/CTS/PVC, 12/20 кВ. Mass and diameter describe the assembled cable. The /screen notation does not create a fourth phase core; the approved drawing defines the screen arrangement.
Reference ampacity: one system; air 30°C, коэффициент нагрузки 1.0; ground 20°C, глубина 0.7 м, термическое сопротивление 1.0 K·m/W, коэффициент нагрузки 0.7. Reference conductor limit: 90°С. The buried ratings do not represent a continuously fully loaded circuit at load factor 1.0.
Three-core construction and accessory interfaces
A single overall sheath fixes the relative positions of the three phase cores. Three separate single-core cables permit a chosen flat or trefoil arrangement. Equal voltage and conductor area do not make their current-rating or handling data interchangeable.
Termination stress-control components fit the insulation diameter and screen treatment. Glands and entry seals fit the complete cable diameter. The 3×240/25 reference is approximately 85 mm in diameter and 13 кг/м, before drum tare; handling calculations therefore use assembly mass, not copper mass alone.
Applications and Installation Conditions
Промышленная дистрибуция, substation connections and underground or ducted feeder sections can suit a combined three-core assembly. Pulling equipment, route access and bending limits must fit the complete cable. Броня, water blocking and enhanced fire-performance sheaths require separately identified constructions rather than assumptions about the N2XSEY name.
The production definition must identify screen arrangement, insulation and sheath thicknesses, accessory diameters and applicable tests for the assembled three-core cable. The official standard scope concerns fixed distribution installations, not an automatic claim of approval for special service.
N2XSEY and Related Constructions
| Модель | Main difference |
|---|---|
| N2XSY single-core cable | Each phase cable has its own sheath; circuit geometry and bonding need separate assessment. |
| 20 диапазон кабелей кВ | Voltage-class context for 12/20(24) kV projects, rather than an exact three-core model. |
| Armoured MV construction | Mechanical armour adds a separate layer and changes the specified design and dimensions. |
N2XSEY Cable FAQs
Does N2XSEY mean the cable is armoured?
Нет. The reference screened construction is unarmoured. A metallic screen provides an electrical function and is not mechanical armour.
Can 12/20 kV dimensions be used for a 6/10 kV variant?
Нет. The values here belong only to the stated 12/20 строительство кВ. A different voltage design needs its own dimensional and rating data.
Is N2XSEY the same as three N2XSY cables?
Нет. N2XSEY combines three phase cores within one sheath. Separate N2XSY cables have different assembly, handling and installation arrangements.
Related: Кабель среднего напряжения · Типы и модели кабелей
Route and handling constraints for underground MV cable
Связаться с XWA: info@xwacable.com · WhatsApp