E-A2XHCY Cable

What is E-A2XHCY Cable?

The E-A2XHCY Cable is a single-core aluminium conductor medium-voltage power distribution cable manufactured in strict adherence to international standard IEC 60502-2, European conductor standard EN 60228, and generally conforming to harmonized specification HD 620 10A. Designed for primary energy transmission across standard operating voltage classes of 6/10 (12)kV, 12/20 (24)kV, and 18/30 (36)kV, it provides a lightweight, cost-effective solution for electrical power distribution networks, power supply stations, and plant process interconnections.

The European cable coding system defines its layered construction: E- signifies a medium-voltage distribution cable manufactured according to European harmonized standards; A specifies a Class 2 stranded aluminium conductor; 2X indicates dry-cured Cross-Linked Polyethylene (XLPE) dielectric insulation rated for continuous +90°C operation; H denotes extruded semi-conductive conductor and insulation screening layers that maintain uniform radial electrical stress; C designates a metallic screen consisting of plain copper wires to safely conduct earth fault currents; and Y specifies a heavy-duty Polyvinyl Chloride (PVC) outer sheath. Suitable for direct burial in soil, open outdoor air, indoor switchgear rooms, and cable duct banks, the cable combines flame retardancy per IEC/EN 60332-1-2 with reliable electrical performance.

E-A2XHCY Cable Construction

• Conductor: Class 2 stranded circular compacted aluminium conductor conforming to EN 60228.
• Conductor Screen: Extruded semi-conductive material ensuring uniform radial electrostatic stress distribution.
• 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 to the dielectric insulation.
• Metallic Screen: Concentric plain copper wires (standardized at 16mm², 25mm², or 35mm² based on conductor cross-section).
• Outer Sheath: Heavy-duty, flame-retardant Polyvinyl Chloride (PVC) compound.
• Sheath Colour: Red.

Applications

E-A2XHCY medium-voltage aluminium power cables are engineered for primary electrical energy transmission across diverse utility, industrial, and power generation installations:

• Direct Burial in Ground: Heavy-duty subterranean trench installation directly into prepared soil without requiring auxiliary conduit protection.
• Underground Cable Ducts & Conduits: Pulled through concrete duct banks, utility raceways, and pipe systems where lightweight handling and low pulling forces are required.
• Power Distribution Networks: Primary medium-voltage feeder circuits interconnecting municipal substations, switching stations, and step-down power transformers.
• Generation Units & Plant Process Connections: Feeder connections linking power generation units, thermal facilities, and renewable energy collector substations to plant process circuits.
• Indoor & Outdoor Fixed Wiring: Routing along cable trays, raceways, structural masonry, and open-air cable racks in industrial complexes requiring flame retardancy.

Specifications & Dimensions

Huadong Cable Group manufactures E-A2XHCY 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 spanning 50mm² up to 400mm² (50, 70, 95, 120, 150, 185, 240, 300, and 400mm²) and copper wire screen sections of 16mm², 25mm², or 35mm² in strict compliance with IEC 60502-2 and EN 60228. Across the voltage spectrum, nominal overall diameters range from 29mm to 45mm for 6/10kV, 33mm to 49mm for 12/20kV, and 41mm to 56mm for 18/30kV, with nominal cable weights spanning 750 kg/km up to 2,920 kg/km. Operating across a continuous fixed installation temperature range of -20°C to +90°C, continuous current carrying capacities reach up to 660A in air and 529A in ground for 6/10kV 400mm², up to 660A in air and 535A in ground for 12/20kV 400mm², and up to 654A in air and 545A in ground for 18/30kV 400mm² under trefoil conditions. The cable maintains a standardized minimum installation bending radius of 15 times the overall diameter and complies fully with flame retardance standards per IEC/EN 60332-1-2.

Standards

Design & Manufacturing Standards: IEC 60502-2, EN 60228 Class 2, Generally to HD620 10A
Flame Retardancy: Flame Retardant according to IEC/EN 60332-1-2
Voltage & Electrical Ratings: Voltage Rating Uo/U (Um): 6/10 (12)kV, 12/20 (24)kV, 18/30 (36)kV
Thermal Ratings: Fixed Operating Temperature: -20°C to +90°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-A2XHCY and copper E-2XHCY cables?
A: E-A2XHCY utilizes Class 2 stranded aluminium conductors rather than copper. While aluminium conductors require a larger cross-section for equivalent ampacity due to higher DC resistance, they reduce overall cable weight by roughly 40% to 50% (e.g., 2,300 kg/km vs 4,450 kg/km for 6/10kV 400mm²), substantially lowering procurement and transportation costs for long-distance utility networks.

Q: How does the PVC outer sheath differ in performance compared to MDPE-sheathed variants?
A: The Polyvinyl Chloride (PVC) outer sheath provides flame retardancy to IEC/EN 60332-1-2 and greater flexibility for indoor tray routing and tight switchgear connections, whereas MDPE sheathing offers higher surface hardness and enhanced moisture impermeability primarily optimized for direct burial.

Q: What is the function of the concentric copper wire screen?
A: The concentric copper wire screen provides an electrical earth path to safely conduct earth-fault currents to ground during short-circuit events, while maintaining a uniform electrostatic field around the insulation to prevent dielectric breakdown.

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-A2XHCY Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures E-A2XHCY medium-voltage aluminium power cables in strict compliance with IEC 60502-2, EN 60228, and HD 620 10A specifications. Utilizing high-purity electrical-grade aluminium rod, our high-speed stranding machinery produces Class 2 stranded circular compacted conductors that ensure tight dimensional tolerance, optimal compaction density, and minimum DC resistance. On our triple-extrusion catenary continuous vulcanization (CCV) lines, the semi-conductive conductor screen, high-cleanliness XLPE insulation, and semi-conductive insulation screen are extruded simultaneously in a pressurized dry nitrogen environment, eliminating microscopic voids and keeping partial discharge levels well below standard 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, generation facilities, and industrial EPC contractors worldwide.