High Strength YJV22 Medium Voltage Armored Cable Copper Core for Power Grid & Heavy Industry Projects

The medium-voltage cross-linked polyethylene (XLPE) insulation features ultra-low dielectric loss and high insulation resistance. Combined with a double-sided extruded semi-conductive shielding layer, the cable effectively homogenizes the electric field distribution and maintains partial discharge at extremely low levels during long-term operation. It avoids common medium-voltage cable faults such as insulation breakdown, creepage, and corona discharge, ensuring stable and safe operation of 6/10kV power circuits even under load fluctuations and frequent starts of heavy equipment.

The double-layer galvanized steel tape armor significantly enhances the cable's resistance to compression, impact, torsion, and rodents. In scenarios such as direct burial, cable trench, and roadside laying, it can withstand ground subsidence, heavy vehicle traffic, accidental excavation, and external collisions. For construction sites and industrial areas with complex terrain and frequent mechanical activity, this structure can significantly reduce cable damage rates and minimize unplanned downtime due to circuit faults.

XLPE material maintains stable physical and electrical properties even under continuous operation at 90℃, without softening, shrinkage, or cracking. The modified outer sheath contains UV stabilizers and anti-aging agents, mitigating material performance degradation caused by temperature changes, sunlight exposure, and natural weathering. Whether fully buried or partially exposed outdoors, the cable maintains stable performance throughout its entire service life.

The tightly bonded multi-layered structure forms a reliable waterproof barrier, preventing groundwater and humid air from penetrating the cable core. The special sheath formulation provides strong resistance to saline-alkali soils, swampy soils, and trace amounts of industrial chemical vapors. It operates stably even in harsh geological environments such as coastal areas, industrial zones, and mountainous regions, preventing performance degradation caused by moisture erosion and chemical corrosion.

Standard cables have inherent flame-retardant properties, inhibiting the spread of flames along the cable path. Customized fire-resistant products can maintain normal power supply to emergency systems for a certain period during a fire hazard. Low-smoke halogen-free products release almost no smoke or toxic gases when burning, fully complying with the stringent fire safety regulations for enclosed spaces, public gathering places, and key national infrastructure.

High-purity compacted copper conductors possess low resistivity and uniform current characteristics, enabling efficient high-current transmission in medium-voltage trunk lines while reducing heat generation and active power loss. For long-distance distribution networks, its low-loss characteristics help project owners reduce daily energy consumption and generate continuous economic benefits over decades of operation.

All dimensions are manufactured according to unified industry standards, ensuring full compatibility with mainstream global medium-voltage terminals, cable connectors, fittings, and mounting hardware, eliminating the need for special supports. Optimized flexibility balances rigidity and bending performance, adapting to complex cabling environments such as cable trenches, conduits, and bends, thereby simplifying the installation process and shortening project delivery cycles.

Suitable for urban substation outgoing lines, inter-regional medium-voltage trunk lines, old power grid renovation, and new regional power grids. Its excellent underground performance and electrical stability make it the standard choice for urban underground medium-voltage power systems.

Serving as the main power supply line for metallurgical, chemical, building materials, large machinery manufacturing, and integrated industrial parks. Connecting the substation to high-power motors, frequency converters, and production lines, adaptable to environments with high dust, slight chemical pollution, and frequent mechanical operation within workshops.

Preferred laying methods: direct burial, cable trench, buried pipe, and cable gallery. Long-distance overhead laying is not recommended. If overhead laying is necessary, dedicated insulating supports and protective sleeves should be provided. For sections crossing roads, railways, and building foundations, secondary mechanical protection should be provided using steel pipe sheaths.

Before design, verify that the actual operating voltage of the power system matches the rated voltage of the 6/10kV cable. Calculate the total three-phase load current based on the rated power of the connected equipment. Reserve sufficient current-carrying margin for impact loads and intermittent heavy-load equipment. Long-term overload operation is strictly prohibited to avoid accelerated insulation aging and potential safety hazards.

During cable laying, the specified minimum bending radius should be followed. Excessive bending can damage the internal shielding layer and insulation structure, leading to partial discharge. Cables should be kept away from sharp metal edges and highly corrosive substances. For direct burial, graded fine sand should be laid at the top and bottom of the cable, and protective bricks should be placed according to construction specifications.

In coastal saline-alkali areas, high-humidity areas, and heavily polluted industrial areas, special waterproof and corrosion-resistant medium-voltage cable joints should be used, and all connection points should be fully sealed. Construction should be suspended when the ambient temperature is below 0°C to prevent sheath embrittlement and breakage. All joints should be located in well-ventilated and easily inspected locations.

Allow sufficient maintenance space in cable trenches and corridors. Establish regular inspection points for long-distance medium-voltage lines. Conduct regular insulation resistance tests and partial discharge detection during operation to promptly identify and eliminate potential risks.

All products are manufactured in accordance with IEC international standards and mainstream regional electrical specifications, meeting the bidding, supply, and application requirements for medium-voltage engineering projects worldwide.

• Incoming Material Inspection: All copper conductors, XLPE granules, shielding materials, and sheath raw materials undergo rigorous sampling inspection before warehousing.
• Online Monitoring: The fully automated production line monitors insulation thickness, shielding uniformity, and outer diameter in real time to ensure product structural consistency.
• Finished Product Inspection: 100% random sampling inspection, including conductor DC resistance, power frequency withstand voltage, partial discharge, mechanical properties, and thermal aging tests. Non-conforming products are completely isolated.

We provide a complete set of official documentation, including factory inspection reports, qualification certificates, and detailed test data sheets, to support project bidding, filing, acceptance, and final acceptance.

Mature production technology and standardized operating procedures ensure no significant performance deviations between different batches of products, perfectly matching the phased construction and multi-batch delivery of large-scale projects.

A newly built economic development zone implemented an underground medium-voltage power grid construction project, purchasing 26,000 meters of our company's 6/10kV YJV22 armored cable as the main distribution line for the area. The cable was laid under urban roads, green belts, and municipal utility tunnels. After 9 years of operation, all lines showed good insulation, with no water seepage, mechanical damage, or abnormal aging. A stable power supply ensured the normal operation of residential areas, commercial areas, and public facilities, and passed multiple rounds of official power grid acceptance inspections.

A large national-level cement plant selected cables manufactured by our company for medium-voltage power supply between the substation and high-power equipment such as rotary kilns and crushers. The workshop experienced high dust levels, significant vibration, and slightly corrosive gases. Thanks to its anti-corrosion sheath and double-layer steel tape armor, the cable was able to withstand the harsh operating environment. The power system operates 24 hours a day, year-round, with an extremely low failure rate. Our clients have established long-term strategic procurement partnerships with us for factory expansion and equipment upgrades.

We use top-grade oxygen-free copper and medium-voltage special cross-linked polyethylene (XLPE) materials. A comprehensive quality management system is implemented throughout every production stage. High product reliability effectively reduces the risk of circuit failures and subsequent maintenance costs in medium-voltage projects, providing a solid guarantee for long-term safe operation.

We offer a full range of 6/10kV YJV22 cables, covering various core types and cross-sectional specifications. In addition to standard products, we also support customized production for flame retardant ratings, fire resistance ratings, low-smoke halogen-free formulations, sheath colors, and fixed cutting lengths. Furthermore, we provide one-stop matching services for medium-voltage cable accessories to meet the differentiated design needs of various projects.

Our experienced medium-voltage electrical engineers provide free dedicated services, including cable type selection, load current calculation, laying scheme optimization, and accessory matching. We can compile specific technical information and certification documents required for project bidding, helping clients optimize design solutions and save time on technical research.

We maintain ample inventory of standard specifications to support large spot orders and urgent project needs. Mixed shipments with other cable products are possible to improve container utilization and control cross-border logistics costs. For long-term clients, we have framework agreements to ensure regular bulk deliveries and stable supply.

We are familiar with international trade rules and customs requirements in different regions. We can provide a complete set of certification documents, test reports, commercial invoices, and packing lists required for export, ensuring smooth customs clearance and on-time delivery worldwide.

For large-scale medium-voltage projects, our service team responds quickly to product and application inquiries and provides practical solutions to ensure smooth project operation.