E-2XHC2Y Cable

What is E-2XHC2Y Cable?

The E-2XHC2Y Cable is a single-core, copper conductor medium-voltage power distribution cable engineered in conformity with international standard IEC 60502-2, conductor standard IEC 60228, and generally 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 a critical connection between power generation facilities, distribution substations, and major industrial power consumers.

The standardized European cable code defines its premium structural design: E- indicates a power distribution cable manufactured to European harmonized specifications; 2X specifies high-purity dry-cured Cross-Linked Polyethylene (XLPE) dielectric insulation; H denotes extruded semi-conductive conductor and bonded insulation screens; C2 represents a heavy-duty metallic screen composed of concentric plain copper wires reinforced with a helical copper counter-tape; and Y (MDPE) designates a high-density, weather-resistant Medium Density Polyethylene protective outer sheath. Engineered for rigorous outdoor mechanical demands, E-2XHC2Y 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 burial and ducted installations.

E-2XHC2Y Cable Construction

• Conductor: Class 2 Stranded Annealed Copper 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 exceptional dielectric endurance up to +90°C continuous operating temperature.
• Insulation Screen: Extruded semi-conductive material (bonded type) creating an intimate, void-free molecular interface with the XLPE insulation.
• Metallic Screen: Concentric plain copper wires bound with an equalizing plain copper tape to conduct earth-fault currents safely.
• Outer Sheath: Heavy-duty, UV-resistant, halogen-free Medium Density Polyethylene (MDPE) compound.
• Sheath Colour: Available in Red or Black.

Applications

E-2XHC2Y medium-voltage copper cables are engineered for high-capacity primary electrical power transmission across demanding civil, utility, and heavy industrial environments:

• Direct Burial in Ground: Heavy-duty subterranean installation directly into open trenches without supplementary conduit, leveraging its MDPE outer jacket for tear, abrasion, and moisture resistance.
• Buried Cable Ducts & Conduits: Pulled through concrete duct banks, underground pipe systems, and road crossings where low jacket friction and high pulling tension tolerance are critical.
• Power Distribution Networks & Substations: Primary feeder lines interconnecting electrical supply stations, regional switching substations, and step-down transformer rooms.
• Power Generation Units & Renewables: Main medium-voltage collector circuits linking renewable power generation units (wind turbine arrays and solar PV inverter clusters) to grid step-up substations.
• External Industrial Infrastructure: Outdoor and subterranean power feeds across chemical processing plants, refineries, mining complexes, and automated manufacturing facilities.

Specifications & Dimensions

Huadong Cable Group manufactures E-2XHC2Y 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 full portfolio, nominal overall diameters range from 22mm to 46mm for 6/10kV, 26mm to 51mm for 12/20kV, and 32mm to 56mm for 18/30kV, with nominal cable weights spanning 850 kg/km up to 7,500 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 continuous maximum 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 ratings reach up to 1,030A in air and 850A in ground, 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; 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: Low Voltage Directive 2014/35/EU, RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What mechanical advantages does the Medium Density Polyethylene (MDPE) outer sheath provide for E-2XHC2Y?
A: The MDPE outer sheath provides exceptional surface hardness, high tear and abrasion resistance (EN 60229-4.1), AG2 impact resistance (EN 60364-5.51), and complete moisture impermeability, making it far more rugged than standard PVC for direct subterranean burial and duct pulling.

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: How does the metallic screen composed of copper wires and copper tape perform during fault events?
A: The concentric annealed copper wires provide a low-resistance path to conduct single-phase short-circuit fault currents safely to ground, while the copper tape counter-spiral ensures electrical continuity and equalizes radial electrostatic charge across the core.

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-2XHC2Y Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures E-2XHC2Y medium-voltage 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 high-speed drawing and stranding equipment produces 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 extruded 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 EPC engineering contractors worldwide.