E-A2XHC2Y Cable

What is E-A2XHC2Y Cable?

The E-A2XHC2Y Cable is a single-core, aluminium conductor medium-voltage power distribution cable manufactured in strict adherence to international standard IEC 60502-2, conductor standard IEC 60228, and generally conforming to European harmonized specification HD 620 10A. Designed for primary energy transmission across voltage classes of 6/10 (12)kV, 12/20 (24)kV, and 18/30 (36)kV, it serves as an economical and lightweight solution for municipal utility distribution networks, primary step-down substations, and industrial power infrastructure.

The standardized European designation defines each structural element: E- indicates a power distribution cable built to European harmonized specifications; A specifies a Class 2 stranded aluminium conductor; 2X designates high-purity dry-cured Cross-Linked Polyethylene (XLPE) dielectric insulation; H denotes extruded semi-conductive conductor screening and a bonded semi-conductive insulation screen; C2 represents a heavy-duty metallic screen composed of concentric plain copper wires bound with an equalizing copper counter-tape; and Y (MDPE) specifies a tough Medium Density Polyethylene protective outer sheath. Engineered for rigorous outdoor mechanical demands, E-A2XHC2Y features AG2 mechanical impact resistance per EN 60364-5.51, tear and abrasion endurance to EN 60229-4.1, and long-term UV resistance per ISO 4892-3, making it exceptionally reliable for direct underground burial and duct installations.

E-A2XHC2Y Cable Construction

• Conductor: Class 2 Stranded Circular Compacted Aluminium conductor conforming to IEC 60228.
• Conductor Screen: Extruded semi-conductive compound ensuring uniform electrostatic stress distribution over the conductor surface.
• Insulation: High-grade Cross-Linked Polyethylene (XLPE) compound providing dielectric endurance up to +90°C continuous operating temperature.
• Insulation Screen: Extruded semi-conductive material (bonded type) creating an intimate molecular dielectric interface.
• Metallic Screen: Concentric plain copper wires bound with an equalizing copper counter-tape (available in 16mm², 25mm², or 35mm²).
• Outer Sheath: Heavy-duty, UV-resistant, halogen-free Medium Density Polyethylene (MDPE) compound.
• Sheath Colour: Available in Red or Black.

Applications

E-A2XHC2Y medium-voltage aluminium cables are engineered for high-capacity primary electrical power transmission across demanding civil, utility, and heavy industrial environments:

• Direct Burial in Ground: Subterranean installations laid directly into open soil trenches without auxiliary conduit, utilizing the tough MDPE outer sheath for abrasion, impact, and moisture protection.
• Buried Cable Ducts & Pipes: Pulled through concrete duct banks, underground conduit raceways, and road crossings where low jacket friction and lightweight pulling ease are required.
• Power Distribution Networks: Primary medium-voltage feeder circuits interconnecting electrical supply stations, regional switching substations, and step-down transformers.
• Power Generation Units & Renewables: Main collector lines linking renewable energy generation units (wind turbine strings and large-scale solar PV inverter stations) to grid step-up substations.
• Heavy Industrial Facilities: Subterranean power distribution lines across manufacturing plants, chemical complexes, and mining facilities requiring dependable, cost-efficient cabling.

Specifications & Dimensions

Huadong Cable Group manufactures E-A2XHC2Y single-core aluminium cables across 6/10 (12)kV, 12/20 (24)kV, and 18/30 (36)kV voltage classes with conductor cross-sectional areas from 50mm² up to 630mm² (50, 70, 95, 120, 150, 185, 240, 300, 400, 500, and 630mm²) and copper screen cross-sections of 16mm², 25mm², or 35mm². Nominal insulation thicknesses are calibrated per voltage rating: 3.40mm (2.96mm min) for 6/10kV, 5.50mm (4.85mm min) for 12/20kV, and 8.00mm (7.10mm min) for 18/30kV. Nominal outer sheath thicknesses range from 1.80mm to 2.70mm, yielding overall outer diameters spanning 23mm to 46mm for 6/10kV, 27mm to 51mm for 12/20kV, and 32mm to 56mm for 18/30kV, with nominal cable weights spanning 550 kg/km up to 3,500 kg/km and maximum permissible pulling tensions from 1,500 N up to 18,900 N. Operating reliably across an ambient installation temperature range of -20°C to +60°C, a permissible continuous conductor operating temperature of +90°C, and a short-circuit limit of +250°C for up to 5 seconds, maximum aluminium conductor DC resistance at 20°C ranges from 0.641 Ω/km (50mm²) down to 0.0469 Ω/km (630mm²). Continuous current carrying capacities reach up to 882A in air (30°C) and 701A in ground (20°C) for 630mm² cables, with conductor 1-second short-circuit current withstand up to 59.22 kA and metallic screen ratings of 3.2 kA (16mm²), 5.0 kA (25mm²), and 7.1 kA (35mm²), fully adhering to IEC 60502-2, IEC 60228, and HD 620 10A standards.

Standards

Design & Manufacturing Standards: IEC 60502-2, IEC 60228 Class 2, Generally to HD620 10A
Mechanical & Environmental Resistance: UV Resistant: ISO 4892-3; Abrasion and Tear Resistant: EN 60229-4.1; Impact rated to AG2: EN 60364-5.51
Halogen Content: Halogen free according to IEC 60754
Voltage & Test Ratings: Voltage Rating Uo/U (Um): 6/10 (12)kV, 12/20 (24)kV, 18/30 (36)kV; AC Test Voltages (5 mins): 21kV (6/10kV), 42kV (12/20kV), 63kV (18/30kV)
Thermal Ratings: Temperature Range: -20°C to +60°C; Permissible Conductor Operating Temp: +90°C; Permissible Short Circuit Temp (up to 5s): +250°C
Bending Performance: Minimum Bending Radius: 15 × overall diameter
Regulatory Compliance: RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What is the primary difference between E-A2XHC2Y and copper E-2XHC2Y cables?
A: E-A2XHC2Y utilizes Class 2 stranded aluminium conductors instead of copper. While aluminium has a higher DC resistance and requires a larger cross-section for equivalent ampacity, it reduces cable weight by more than 50% (e.g., 3,000 kg/km vs 6,750 kg/km for 6/10kV 630mm²) and significantly lowers raw material expenditure for long-distance utility runs.

Q: What mechanical advantages does the Medium Density Polyethylene (MDPE) outer sheath provide?
A: The MDPE outer sheath delivers superior abrasion and tear resistance (EN 60229-4.1), AG2 impact resistance (EN 60364-5.51), and excellent moisture impermeability, offering greater protection than standard PVC during direct burial and aggressive conduit pulls.

Q: Why is a bonded semi-conductive insulation screen specified instead of a strippable type?
A: The bonded semi-conductive screen forms an intimate molecular transition with the dry-cured XLPE insulation during continuous triple extrusion, completely eliminating microscopic voids and micro-delamination that could initiate partial discharge erosion under high-voltage electrical stress.

Q: What commercial payment terms does Huadong Cable accept for international project orders?
A: We accept standard international commercial payment terms, primarily Telegraphic Transfer (T/T, with 30% advance deposit and 70% against shipping documents) and 100% Irrevocable Letter of Credit (L/C) at sight.

E-A2XHC2Y Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures E-A2XHC2Y medium-voltage aluminium power cables in strict compliance with IEC 60502-2, IEC 60228, and HD 620 10A specifications. Utilizing high-purity electrical-grade aluminium rod, our high-speed drawing and stranding lines produce Class 2 circular compacted aluminium conductors that deliver tight geometric tolerances, optimal compaction density, and minimum DC resistance. On our catenary continuous vulcanization (CCV) triple-extrusion lines, the semi-conductive conductor screen, high-cleanliness XLPE insulation, and bonded insulation screen are applied simultaneously in a pressurized dry nitrogen environment, eliminating microscopic air voids and keeping partial discharge levels well below international test limits.

Backed by more than 20 years of precision cable engineering expertise, Huadong Cable Group operates testing laboratories accredited under ISO/IEC 17025 and quality management systems certified to ISO 9001 and CE frameworks. Direct factory manufacturing eliminates middleman trading markups, allowing us to provide competitive factory pricing, 100% routine electrical and spark testing verified by certified Mill Test Certificates (MTC), continuous drum cuts packaged on heavy-duty ISPM 15 heat-treated export wooden reels, and dependable logistics for international electric utilities, renewable EPCs, and industrial engineering contractors worldwide.