YJHLV 8.7/15kV Alloy Aluminum XLPE Insulated for Grid & Industrial Distribution

The YJHLV 8.7/15kV is a high-performance alloy aluminum conductor medium-voltage power cable designed for cost-critical, long-distance, large-scale medium-voltage infrastructure projects. This cable features a high-strength, heat-resistant aluminum alloy conductor, a triple co-extruded semi-conductive shielding structure, and a high-quality cross-linked polyethylene (XLPE) insulation layer, offering excellent conductivity, superior mechanical flexibility, creep resistance, and thermal stability.

Unlike traditional pure aluminum cables, the YJHLV alloy aluminum core overcomes the drawbacks of easy breakage, poor ductility, and unstable connection performance. Its standardized 8.7/15kV voltage rating design maintains ultra-low partial discharge, excellent resistance to water treeing, and insulation aging performance even under continuous high load operation. Its lightweight, unarmored construction makes it suitable for various installation scenarios, including indoor, conduit, and cable trench installations, perfectly meeting the needs of global EPC contractors, power engineers, and industrial users for cost-effectiveness, long service life, and system compatibility. This product is manufactured in full compliance with IEC international standards and global electrical specifications, achieving a balance of performance in terms of electrical safety, mechanical properties and environmental adaptability, making it suitable for modern medium-voltage transmission networks.

Rated Voltage

8.7/15kV (Uo/U, 15kV power system standard)

Conductor

Compact heat-resistant aluminum alloy stranded conductor, high ductility, creep resistance, and fracture resistance.

Insulation

Cross-linked polyethylene (XLPE), high dielectric strength, low dielectric loss, and inhibition of water tree formation.

Shielding System

Inner semi-conductive shielding layer + XLPE insulation layer + outer semi-conductive shielding layer, uniformly controlling the electric field.

Outer Sheath

High-toughness PVC sheath, anti-aging, moisture-proof, and resistant to slight chemical corrosion.

Maximum Continuous Operating Temperature

90℃

Short Circuit Withstand Temperature

250℃ (5-second short-time overload)

Minimum Bending Radius

10 times the cable outer diameter, suitable for flexible wiring.

Standards

IEC 60502-2, GB/T 12706.3

Certifications

CE, RoHS, ISO 9001 certified.

• Municipal power grid upgrades, urban trunk power distribution, and long-distance overhead auxiliary cabling
• Medium-voltage power supply lines in large industrial parks, chemical plants, metallurgical plants, and manufacturing plants
• Substation auxiliary circuits, distribution room connections, and indoor medium-voltage switchgear cabling
• Renewable energy projects, including power transmission within solar power plants, wind farms, and energy storage stations
• Centralized power distribution systems in commercial complexes, public facilities, campuses, and large buildings
• Cable trenches, enclosed ducts, tunnels, and indoor protective cabling projects, free from mechanical crushing or impact risks.

• Upgraded Alloy Aluminum Conductor Performance
  Heat-resistant aluminum alloy materials possess excellent flexibility, creep resistance, and mechanical toughness. This prevents loosening and breakage caused by thermal expansion and contraction, significantly improving long-term operational safety compared to ordinary aluminum cables.
• Superior Medium-Voltage Dielectric Stability
  High-density cross-linked polyethylene (XLPE) insulation, combined with a double-layer shielding structure, suppresses partial discharge and electric field concentration, effectively delaying insulation aging, adapting to long-term variable load operation, and reducing the risk of line breakdown and leakage.
• Significantly Reduced Total Project Costs
  Lighter than copper cables and with higher structural stability than pure aluminum cables. It reduces raw material costs, transportation costs, and on-site construction difficulty, making it the best cost-effective solution for long-distance medium-voltage power transmission.
• Flexible Laying and Strong Adaptability
  Unarmored, compact structure with a small bending radius, suitable for complex line layouts and construction in confined spaces. The durable outer sheath adapts to complex operating conditions such as humidity, high temperatures, and diverse climates.
• Low Life Cycle Operating Costs
  Stable physical and chemical properties, low failure rate, and maintenance-free daily operation. It effectively reduces the costs of subsequent inspection, maintenance, and replacement for power operators and asset owners.

• Conductor Selection and Current-Carrying Design
  Engineers should appropriately increase the conductor cross-sectional area based on the actual load current. Aluminum alloys have different conductivity than copper, requiring proper cross-sectional matching to avoid overload heating.
• Laying Environment Limitations
  This unarmored YJHLV cable is not suitable for direct burial, heavy-duty, frequent impact, or rodent-infested areas. For harsh mechanical environments, a custom armored version is strongly recommended.
• Terminal Connection Standards
  Aluminum alloy conductors require specialized aluminum-specific terminal crimping and anti-oxidation treatment to prevent increased contact resistance and overheating at the joints, thus ensuring standardized on-site construction.
• Global Compliance
  Customized sheath materials and technical specifications are supported to meet power industry standards in Africa, Southeast Asia, the Middle East, and other regions, ensuring smooth project acceptance and bid qualification reviews.

• Global Standards Compliance, Complete Documentation
  All products are tested by authoritative third-party organizations and possess CE and RoHS certifications, along with complete certification reports, factory test data, and technical data sheets. This supports international customs clearance, EPC bidding, and cross-border project delivery.
• High-Quality Raw Materials, Strict Production Control
  Uses high-purity heat-resistant aluminum alloy rods and imported XLPE insulation materials. Automated co-extrusion production and 100% online high-voltage withstand voltage and partial discharge testing ensure stable and reliable batch quality.
  
• Customized B2B Engineering Solutions
  Supports customized core quantity, cross-sectional size, sheath formulation, and surface printing. Flexible minimum order quantities and stable batch production cycles meet the needs of large-scale infrastructure projects, bulk wholesale, and long-term framework cooperation orders.
• Factory Direct Sales Advantages
  No middlemen markups, transparent pricing, and strong cost competitiveness in medium- and long-distance power grid projects. Standard export-grade wooden barrel packaging ensures safe long-distance sea and land transport.
• Professional One-Stop Technical Support
  Our professional electrical engineering team provides free current carrying capacity calculations, cable selection guidance, installation specifications, and connection technology advice, efficiently solving the core technical points of global buyers and field engineers.