ARE4H1R Cable

What is ARE4H1R Cable?

The ARE4H1R Cable is a single-conductor aluminium medium-voltage power distribution cable engineered in conformity with the international standard IEC 60502-2. Available in nominal voltage ratings of 12/20 (24)kV and 18/30 (36)kV, it is designed for primary electrical utility circuits, substation transformer feeders, industrial plant networks, and renewable power infrastructure such as wind turbine generation systems.

The cable construction features a Class 2 compacted stranded aluminium conductor insulated with dry-cured XLPE compound (DIX 8) bounded by extruded semi-conductive screening layers. Enhanced by a semiconductive watertight tape barrier and a copper wire/tape metallic screen beneath an oil- and abrasion-resistant red PVC (ST2) jacket, ARE4H1R provides mechanical durability and electrical stability whether laid in underground channels, pulled through buried conduits, installed in open air, or placed directly in protected subterranean trenches.

ARE4H1R Cable Construction

• Conductor: Class 2 compacted stranded circular aluminium conductor.
• Conductor Screen: Extruded semi-conductive XLPE compound to eliminate electrostatic stress concentrations.
• Insulation: Cross-Linked Polyethylene (XLPE) compound (DIX 8) providing dielectric strength and continuous thermal endurance up to 90°C.
• Insulation Screen: Extruded semi-conductive XLPE compound bonded to the insulation layer.
• Protective Layer: Semiconductive watertight tape applied over the insulation screen to impede moisture ingress.
• Metallic Screen: Concentric copper wires and equalizing copper tape designed for earth-fault carrying capacity.
• Outer Sheath: Heavy-duty Polyvinyl Chloride (PVC) compound (ST2) providing chemical and mechanical protection.
• Outer Sheath Colour: Red.

Applications

ARE4H1R medium-voltage cables are engineered for primary electrical energy distribution across diverse civil, utility, and renewable energy installations:

• Wind Power Plants: Medium-voltage power collection circuits and collector networks linking wind turbine step-up transformers to substation switchgear.
• Underground Utility Channels: Primary distribution runs routed through concrete cable galleries, raceways, and sub-station basement trenches.
• Underground Pipe & Duct Systems: Pulled through subterranean PVC/PE duct banks and conduits subject to installation friction.
• Protected Direct Underground Burial: Soil trench installation with appropriate backfilling and mechanical cover tiles or slabs.
• Open Air & Industrial Cable Trays: External indoor/outdoor perimeter routes and ladder-rack distribution across industrial facilities.

Specifications & Dimensions

Huadong Cable Group manufactures single-core ARE4H1R cables across 12/20 (24)kV and 18/30 (36)kV ratings in cross-sectional areas from 50mm² up to 630mm² (including 50, 70, 95, 120, 150, 185, 240, 300, 400, 500, and 630mm²). In the 12/20kV class, the cable utilizes a 4.9mm nominal XLPE insulation thickness (minimum 4.31mm), with overall outer diameters ranging from 27.32mm to 50.52mm and unit weights from 695 kg/km to 2,987 kg/km. In the 18/30kV class, it incorporates a 7.25mm nominal XLPE insulation thickness (minimum 6.5mm), with overall diameters spanning 32.02mm to 55.22mm and weights from 855 kg/km to 3,286 kg/km. Operating at a continuous conductor temperature of 90°C, minimum installation temperature of -25°C, and short-circuit thermal limit of 250°C (5 seconds), conductor DC resistance at 20°C ranges from 0.641 Ω/km (50mm²) down to 0.0469 Ω/km (630mm²). Trefoil-formation current carrying capacities reach up to 914A in air (30°C) and 610A in ground (20°C, depth 0.8m), with all dimensional tolerances strictly conforming to IEC 60502-2.

Standards

Design & Material Standards: In accordance with IEC 60502-2
Conductor Specification: Class 2 compacted stranded aluminium
Insulation & Sheath Compounds: XLPE compound DIX 8; PVC outer sheath compound ST2
Voltage Ratings: Voltage Uo/U: 12/20 (24)kV and 18/30 (36)kV
Thermal Ratings: Maximum operating temperature: 90°C; Short-circuit maximum temperature (5s): 250°C; Minimum installation temperature: -25°C
Regulatory Compliance: RoHS Directive 2015/65/EU, REACH Regulation EC 1907/2006, CE Marked

Frequently Asked Questions

Q: What is the primary function of the semiconductive watertight tape in ARE4H1R cables?
A: The semiconductive watertight tape layer provides electrical continuity between the insulation screen and the metallic screen while swelling slightly upon exposure to moisture to prevent longitudinal water migration along the screen boundary.

Q: What are the installation advantages of compacted stranded aluminium conductors?
A: Class 2 compacted stranded aluminium significantly reduces overall cable diameter and physical weight compared to copper, decreasing pulling tension and logistical handling costs while maintaining reliable ampacity.

Q: Can ARE4H1R cable be buried directly in the ground?
A: Yes, the cable is suitable for underground installation in pipes, channels, or direct burial in ground provided that suitable mechanical protection (such as protective tiles or sand bedding) is utilized.

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.

ARE4H1R Cable – Why Choose Huadong Cable?

Huadong Cable Group manufactures ARE4H1R medium-voltage power cables in strict compliance with the international standard IEC 60502-2. Utilizing high-purity electrical-grade aluminium rod, our advanced rigid stranding equipment produces compacted circular Class 2 conductors that minimize core voids and optimize dimensional uniformity. On our triple-extrusion catenary continuous vulcanization (CCV) lines, the semi-conductive conductor screen, high-cleanliness XLPE (DIX 8) insulation, and semi-conductive insulation screen are applied simultaneously under pressurized dry nitrogen curing, preventing microscopic voids and keeping partial discharge levels well below industry thresholds.

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. Direct factory manufacturing eliminates middleman trading markups, allowing us to provide competitive factory pricing, 100% routine electrical testing (including high-voltage AC withstand and partial discharge verification) documented via 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 and wind farm contractors worldwide.