The XLPE Insulated Steel Wire Armoured (SWA) Cable is a heavy-duty power transmission cable designed for medium-voltage electrical distribution networks.
Technical Specifications
|
Item |
Specification |
|
Cable Type |
Single-core / Three-core XLPE insulated steel wire cable |
|
Conductor Area |
50–630 mm² |
|
Insulation |
XLPE, 8.0 mm thickness |
|
Conductor |
Compact stranded 8000-series aluminum alloy |
|
Operating Temperature |
90°C continuous |
|
Armor |
Galvanized Steel Wire Armour (SWA) |
|
Sheath |
PVC / HDPE |
|
Diameter Range |
38.8–64.3 mm (single-core), 79.7–116.1 mm (three-core) |
|
Weight Range |
2,610–17,870 kg/km |
Cable Construction
|
Layer |
Material / Function |
|
Conductor |
Aluminum alloy conductor for power transmission |
|
Conductor Screen |
Semi-conducting layer for stress control |
|
Insulation |
XLPE insulation for thermal and electrical performance |
|
Insulation Screen |
Semi-conducting layer via CCV process |
|
Metallic Screen |
Copper tape/wire protection layer |
|
Bedding |
Polypropylene tape for moisture protection |
|
Armouring |
Galvanized steel wire for mechanical strength |
|
Outer Sheath |
PVC/HDPE protection against abrasion, UV, oil, moisture |
Key Advantages
Thermal Endurance: Continuous conductor operation at 90°C, emergency overload up to 130°C, and short-circuit limit at 250°C (5s max).
Direct-Burial Mechanical Strength: Galvanized Steel Wire Armor (SWA) withstands crushing forces >1,500 N/10cm and tensile pulling up to 70 N/mm².
Low Dielectric Loss: Insulation power factor (tan δ) <0.001 at 20°C reduces continuous operational energy loss across long-distance distribution lines.
Subsurface Chemical Resistance: Impermeable outer sheath prevents moisture ingress, soil corrosion, and microbial degradation in pH 4–9 environments.
Custom Options
Choice of ST1/ST2 PVC, ST8 LSZH (IEC 60332-3 category flame retardancy), or anti-termite/rodent additive formulations.
Optional longitudinal swelling tapes and yarns for permanently flooded duct applications.
Insulation thickness engineered for systems from 0.6/1 kV up to 18/30 kV.
Custom outer sheath coloring, sequential meter inkjet marking, and tailored cut lengths from 500m to 2,000m.
Quality Control
CCV Line Precision: Continuous Vulcanization lines equipped with X-ray thickness and eccentricity gauges to ensure zero internal voids.
Planetary Armoring: Controlled-tension wire stranding ensures >90% armor coverage without loose wire overlap.
Routine Testing: Every cable reel undergoes inline spark testing and AC high-voltage withstand testing before shipment.
Complete Traceability: Full Material Test Reports (MTR) compliant with EN 10204 3.1 are issued with every shipment batch.
Commercial Terms
MOQ: Base MOQ starts at 1,000 meters per conductor cross-section.
Export Packaging: Heat-treated wooden drums or steel-framed timber reels fully compliant with ISPM 15 standards.
Production Lead Time: 15 to 25 calendar days for standard specifications upon contract confirmation.
Warranty: 24-month factory warranty backed by individual drum serial number tracking and QA archives.
Factory Compliance
Global Standard Adherence: Fully compliant with IEC 60502-1, BS 5467, BS 6724, and DIN VDE 0276.
Management Certifications: Operating under ISO 9001, ISO 14001, and ISO 45001 certified quality and safety systems.
Scale & Capacity: 150-acre manufacturing facility with 20+ specialized extrusion and armoring lines ensuring stable lead times.
Cable Structure

FAQ
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