26/35kV 3 Core 300-630 sqmm AL XLPE CWS SWA PVC Steel Wire Armoured Power Cable for Underground Distribution
26/35kV AL/XLPE/CWS/SWA/PVC Three Core Power Cable (300-630 mm²)
Zhongdong Cable's 26/35kV large-section three-core power cable is engineered for high-capacity medium-voltage transmission, manufactured in accordance with IEC 60502-2 and IEC 60228. The large aluminium conductor cross sections from 300 to 630 mm² deliver lower electrical resistance and higher current-carrying capacity for demanding distribution routes.
The combination of XLPE insulation, copper wire screen (CWS) and galvanized steel wire armour (SWA) ensures stable dielectric performance, effective fault current return and outstanding mechanical protection for direct burial.
Quick Specs
| Type | Steel Wire Armoured MV Power Cable |
| Voltage Rating | 26/35 kV |
| Cores | 3 Core |
| Conductor | Aluminium, Class 1 / Class 2 (IEC 60228) |
| Insulation | XLPE |
| Screen | Copper Wire Screen (CWS) |
| Armour | Galvanized Steel Wire Armour (SWA) |
| Sheath | PVC ST2 |
| Standards | IEC 60502-2 / IEC 60228 |
| Cross Reference | YJLSV32 / NA2XSERY-Armoured Equivalent |
Construction
- Conductor: Stranded aluminium conductor, Class 1 / Class 2
- Conductor Screen: Semi-conductive layer for electric field control
- Insulation: XLPE with stable thermal and dielectric performance
- Insulation Screen: Semi-conductive layer for uniform field distribution
- Metallic Screen: Copper wire screen for grounding and fault current path
- Armour: Galvanized steel wire armour (SWA) for high tensile strength and mechanical protection
- Outer Sheath: PVC (ST2), resistant to moisture and abrasion
Key Advantages of Large Cross Sections
- Lower DC resistance and reduced power losses on long routes
- Higher ampacity for heavy-load industrial and utility feeders
- Fewer parallel runs required, simplifying installation and jointing
- Cost-effective aluminium conductor with SWA mechanical protection
Standards
IEC 60502-2 / IEC 60228 / IEC 60332-1 / IEC 60332-3 / IEC 60754-1 / IEC 60754-2 / IEC 61034; DIN VDE 0276-620; BS 6622 / BS 7835; NF C 33-220; AS/NZS 1429.1; ASTM B3 / ASTM B8
Technical Data (3×300 - 3×630 mm²)
| Nominal Cross Section (mm²) | Insulation Thickness (mm) | Steel Wire Diameter (mm) | Sheath Thickness (mm) | Approx. Diameter (mm) | Approx. Weight (kg/km) | Max DC Resistance at 20°C (Ω/km) |
|---|---|---|---|---|---|---|
| 3×300 | 8 | 3.15 | 4.4 | 110.7 | 15595 | 0.1 |
| 3×400 | 8 | 3.15 | 4.6 | 117.3 | 17675 | 0.0778 |
| 3×500 | 8 | 3.15 | 4.8 | 125.4 | 20009 | 0.0605 |
| 3×630 | 8 | 3.15 | 5.1 | 134.2 | 22527 | 0.0469 |
FAQ
Q1: What is the main installation consideration?
A: Due to higher voltage and larger size, proper cable handling and controlled pulling force are critical during laying.
Q2: Can this cable be used for long-distance underground routes?
A: Yes, but route design should minimize sharp bends and reduce installation stress to maintain insulation integrity.
Contact Zhongdong Cable for competitive factory pricing and professional technical support.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.