E-2XHCJA2Y Cable

What is E-2XHCJA2Y Cable?

The E-2XHCJA2Y Cable is a single-core, copper 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 provides primary electrical power transmission for distribution networks, substation transformers, and electrical power generation stations.

The standardized European cable designation details its dual-barrier waterproof architecture: E- indicates a power distribution cable manufactured to European harmonized specifications; 2X specifies dry-cured Cross-Linked Polyethylene (XLPE) dielectric insulation; H denotes extruded semi-conductive conductor and bonded insulation screens; C represents a metallic screen composed of concentric copper wires and equalizing copper tape; J designates longitudinal waterblocking provided by semi-conductive and non-conductive swellable tapes; A specifies a radial water barrier consisting of an Al/PET (Aluminium/Polyester) tape bonded to the outer sheath; and 2Y specifies a Medium Density Polyethylene (MDPE) outer protective jacket. Certified to EN 60529 for water resistance, AG2 mechanical impact resistance per EN 60364-5.51, tear and abrasion resistance to EN 60229-4.1, and UV resistance per ISO 4892-3, E-2XHCJA2Y provides protection against both radial moisture diffusion and longitudinal water propagation in direct burial and ducted installations.

E-2XHCJA2Y Cable Construction

• Conductor: Class 2 Stranded Annealed Copper conductor conforming to IEC 60228.
• Conductor Screen: Extruded semi-conductive material ensuring a uniform electrostatic stress transition.
• Insulation: High-purity 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 to conduct earth-fault currents safely.
• Outer Longitudinal Waterblocking: Swellable tapes applied over the metallic screen.
• Radial Waterblocking: Al/PET (Aluminium/Polyester) tape bonded directly to the inner surface of the outer sheath.
• Outer Sheath: Heavy-duty, UV-resistant Medium Density Polyethylene (MDPE) compound.
• Sheath Colour: Available in Red or Black.

Applications

E-2XHCJA2Y medium-voltage waterproof copper cables are engineered for primary electrical energy distribution across demanding civil, utility, and heavy industrial installations:

• Direct Burial in Waterlogged Ground: Subterranean installations in high water table soils, tidal floodplains, and damp ground where both radial moisture vapor diffusion and longitudinal water traveling must be completely blocked.
• Buried Cable Ducts & Pipes: Pulled through concrete duct banks, underground conduit raceways, and road crossings subject to standing water and high pulling friction.
• Utility Power Distribution Networks: Primary medium-voltage feeder circuits interconnecting municipal substations, switching stations, and step-down power transformers.
• Power Generation Units & Renewables: Main medium-voltage collector circuits linking renewable power generation units (offshore transition landings, wind turbine towers, and large-scale solar PV inverter stations) to grid step-up substations.
• Heavy Industrial Facilities: Subterranean power distribution lines across chemical facilities, refineries, paper mills, and automated manufacturing complexes exposed to humid ground conditions.

Specifications & Dimensions

Huadong Cable Group manufactures E-2XHCJA2Y single-core copper 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 precisely 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. Across the series, nominal overall outer diameters range from 23mm to 47mm for 6/10kV, 27mm to 51mm for 12/20kV, and 32mm to 56mm for 18/30kV, with nominal cable weights spanning 900 kg/km up to 7,250 kg/km and maximum permissible pulling tensions up to 31,500 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 copper conductor DC resistance at 20°C ranges from 0.387 Ω/km (50mm²) down to 0.0283 Ω/km (630mm²). Continuous current carrying capacities reach up to 1,030A in air (30°C) and 850A in ground (20°C), supported by a standard minimum bending radius of 15 times the overall diameter, fully adhering to IEC 60502-2, IEC 60228, and HD 620 10A specifications.

Standards

Design & Manufacturing Standards: IEC 60502-2, IEC 60228 Class 2, Generally to HD620 10A
Mechanical & Environmental Resistance: UV Resistant: ISO 4892-3; Water Resistant: EN 60529; 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-2XHCJA2Y and E-2XHCJ2Y cables?
A: While both cables feature longitudinal waterblocking swellable tapes (“J”), E-2XHCJA2Y incorporates an additional radial water barrier consisting of an Al/PET (Aluminium/Polyester) tape bonded directly to the MDPE outer sheath (“A”), preventing moisture vapor diffusion into the insulation over long-term submersed operation.

Q: How does the bonded Al/PET tape function as a radial moisture barrier?
A: The aluminium layer of the Al/PET tape acts as a hermetic barrier that blocks moisture vapor molecules from permeating through the polymeric MDPE jacket, protecting the XLPE insulation against water treeing degradation in damp soils.

Q: Why is Medium Density Polyethylene (MDPE) used as the outer jacket material?
A: MDPE offers high surface hardness, AG2 impact resistance (EN 60364-5.51), tear and abrasion protection (EN 60229-4.1), and low coefficient of friction during duct pulling, while bonding effectively to the Al/PET radial barrier tape.

Q: What standard delivery lead time does Huadong Cable offer for international project orders?
A: Our standard manufacturing lead time ranges from 15 to 25 working days depending on order volume, voltage rating, and custom drum lengths, backed by prioritized production scheduling for urgent utility projects.

E-2XHCJA2Y Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures E-2XHCJA2Y medium-voltage waterproof copper power cables in strict compliance with IEC 60502-2, IEC 60228, and HD 620 10A specifications. Utilizing high-purity electrical-grade electrolytic copper rod, our drawing and stranding lines produce Class 2 stranded conductors that deliver tight geometric tolerances, optimal compaction, 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.