E-A2XHCJ2Y Cable

What is E-A2XHCJ2Y Cable?

The E-A2XHCJ2Y 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 electrical energy distribution across voltage ratings of 6/10 (12)kV, 12/20 (24)kV, and 18/30 (36)kV, it provides an economical, lightweight, and waterproof solution for utility distribution networks, generation units, and heavy industrial facilities.

The standardized European cable designation details its structural design: 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 and bonded insulation screening; C represents a metallic screen composed of concentric plain copper wires bound with an equalizing copper counter-tape; J designates longitudinal waterblocking provided by semi-conductive and non-conductive swellable tapes; and 2Y specifies a Medium Density Polyethylene (MDPE) outer protective sheath. Featuring AG2 impact resistance per EN 60364-5.51, tear and abrasion resistance to EN 60229-4.1, and long-term UV resistance per ISO 4892-3, E-A2XHCJ2Y provides moisture protection and physical durability for direct underground burial and duct installations.

E-A2XHCJ2Y 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.
• 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.
• Inner Longitudinal Waterblocking: Semi-conductive swellable tape applied beneath the metallic screen.
• Metallic Screen: Concentric plain copper wires bound with an equalizing copper tape (available in 16mm², 25mm², or 35mm²).
• Outer Longitudinal Waterblocking: Swellable tapes applied over the metallic screen.
• Outer Sheath: Heavy-duty, UV-resistant, halogen-free Medium Density Polyethylene (MDPE) compound.
• Sheath Colour: Available in Red or Black.

Applications

E-A2XHCJ2Y medium-voltage waterproof aluminium power cables are engineered for primary electrical energy distribution across demanding civil, utility, and heavy industrial installations:

• Direct Burial in Damp Ground: Heavy-duty subterranean installation in high water-table soils, wet trenches, and marshy terrain, utilizing dual swellable tapes to prevent longitudinal water travel.
• Buried Cable Ducts & Pipes: Pulled through subterranean concrete duct banks, utility raceways, and road crossings where lightweight flexibility and low jacket friction reduce installation pulling tension.
• Power Distribution Networks: Primary medium-voltage feeder circuits interconnecting regional distribution substations, switching stations, and step-down transformers.
• Power Generation Units & Renewables: Main medium-voltage collector circuits 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-A2XHCJ2Y 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 3,750 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-A2XHCJ2Y and E-A2XHC2Y cables?
A: E-A2XHCJ2Y incorporates dual longitudinal waterblocking swellable tapes (an inner semi-conductive swellable tape below the metallic screen and an outer swellable tape above it) indicated by the letter “J”, providing active moisture sealing that is absent in standard E-A2XHC2Y cables.

Q: How do the swellable tapes function in the event of outer sheath puncture?
A: When water penetrates a damaged outer sheath, the swellable tapes absorb the moisture and rapidly expand to form an impermeable physical gel barrier, arresting longitudinal water migration along the metallic screen interface.

Q: What are the economic and handling advantages of choosing aluminium (E-A2XHCJ2Y) over copper (E-2XHCJ2Y)?
A: Aluminium conductors significantly lower overall project capital expenditure and reduce total cable weight by approximately 50% (e.g., 3,750 kg/km vs 7,500 kg/km for 18/30kV 630mm²), making transport, handling, and duct installation substantially easier.

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-A2XHCJ2Y Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures E-A2XHCJ2Y medium-voltage waterproof 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.