Flame Retardant Low Smoke Halogen Free YJLHV22 Buried Power Cable

YJLHV22 is a high-performance, low-smoke, halogen-free, flame-retardant aluminum alloy conductor steel tape armored power cable with a rated voltage of 0.6/1kV. Designed for reliable power transmission and distribution, this cable utilizes high-quality 8000 series aluminum alloy conductors, a low-smoke, halogen-free insulation sheath, and robust steel tape armor. It stands out among traditional power cables due to its superior conductivity, excellent mechanical protection, fire safety, environmental performance, and long-term durability. Engineering companies, general contractors, and purchasers widely use it in various working environments, including civil buildings, municipal infrastructure, industrial facilities, and public transportation projects, making it a cost-effective, safe, and reliable mainstream power cabling solution in modern engineering.

• Conductor: 8000 series high-performance aluminum alloy tightly stranded conductor, with uniform stranding structure and excellent tensile strength and creep resistance.
• Insulation: Low-smoke halogen-free flame-retardant polyolefin compound, with excellent dielectric strength and thermal stability.
• Inner Sheath: LSZH protective layer, isolating the conductor and insulation layer to prevent external abrasion.
• Armor: Hot-dip galvanized steel strip (Type 22 armor), rust-proof, pressure-resistant, and impact-resistant.
• Outer Sheath: Weather-modified LSZH outer sheath, UV-resistant, aging-resistant, and moisture-proof.

• Rated Voltage: 0.6/1 kV AC
• Continuous Operating Temperature: Maximum 90 °C
• Short Circuit Withstand Temperature: Maximum 250 °C, duration not exceeding 5 seconds
• Conductor Cross-sectional Area: 10 mm² ~ 400 mm²
• Core Configuration: Single core, dual core, triple core, 3+1 core, 3+2 core, multi-core available upon customization
• Flame Retardant Rating: GB/T 19666 Class A flame retardant, vertical flame retardant
• Smoke Performance: Light transmittance ≥70% during combustion, extremely low smoke production
• Halogen Index: Zero halogen content, pH Value ≥ 4.3, no toxic or corrosive gas emissions during combustion
• Minimum bending radius: Static fixed laying ≥ 12 × cable outer diameter; movable laying length ≥ 15 times cable outer diameter
• Permissible laying ambient temperature: ≥ 0℃
• Waterproof performance: Integrated sealed structure, suitable for damp underground and semi-submerged laying environments
• Dielectric strength: Passes full voltage withstand test, insulation performance is stable under long-term load
• Tensile strength: Armored structure improves overall tensile strength, adapting to long-distance traction during construction
  

Expanded application scope, covering standard working conditions and particularly harsh engineering environments, categorized according to usage requirements to achieve precise project matching:

• Directly buried in urban road green belts, sidewalks, and roadbeds: Resistant to soil compaction, vehicle vibration, and sharp gravel compression.
• Integrated utility tunnels and underground pipeline trenches: Suitable for centralized power distribution layouts in urban underground pipe networks.
• Suburban power trunk lines and rural power grid upgrades: Suitable for open-air burial under complex geological conditions.
• Crossing foundation pits, culverts, and drainage pipes: Strong resistance to compression prevents cable damage caused by geological displacement.

• High-rise residential buildings, commercial complexes, shopping malls, and exhibition centers: Ideal for main power lines and branch circuits in densely populated areas.
• Hospitals, clinics, nursing homes, and educational institutions: Meets ultra-high fire safety standards for special public facilities.
• Subway stations, train stations, airport terminals, and passenger hubs: Low-smoke, halogen-free design ensures safe evacuation from enclosed public spaces.
• Office buildings, hotel groups, and cultural venues: Indoor and outdoor wiring layouts that balance safety, durability, and aesthetics.

• General manufacturing workshops, assembly plants, and warehouses: Resistant to mechanical impact, equipment vibration, and dust corrosion.
• Light chemical industrial parks, food processing plants, and pharmaceutical factories: Halogen-free materials meet environmental protection and production safety requirements.
• Logistics parks, freight yards, and large cold storage facilities: Adaptable to working environments with large temperature fluctuations and high humidity.
• Mining auxiliary power distribution and factory outdoor power supply circuits: Weather-resistant sheaths can withstand long-term outdoor exposure.

• Urban power grid upgrades, new area construction, and municipal supporting projects: Fully compliant with national municipal engineering acceptance standards.
• Landscape engineering, park facilities, and street lighting systems: Outdoor UV resistance and weather resistance ensure long service life.
• Water supply, sewage treatment, and municipal environmental protection projects: Moisture-proof and corrosion-resistant properties suitable for water-related engineering environments.

• Suitable for indoor and outdoor wall laying, bridge laying, and cable tray installation.
• Suitable for semi-open-air laying of power supply circuits for factory workshops and outdoor equipment.

Unlike ordinary pure aluminum cables, our 8000 series aluminum alloy conductors utilize a precise formulation and special stranding technology, effectively solving common defects such as conductor creep, loose connections, and poor tensile strength. It maintains stable conductivity meeting standard requirements and possesses excellent fatigue and loosening resistance. Under long-term continuous load and frequent current fluctuations, the conductor connection points will not overheat, significantly reducing the potential risks of circuit failures and power outages. Simultaneously, its overall weight is far lower than copper cables, significantly reducing material and transportation costs without affecting transmission efficiency.

The entire insulation layer and sheath are made of low-smoke halogen-free flame-retardant materials. When exposed to open flames, it will not release toxic fumes or corrosive gases, and the generated smoke is extremely thin, ensuring clear visibility for personnel evacuation and fire rescue. Class A flame retardancy effectively prevents the spread of flames and escalation of the fire. This material is non-toxic and environmentally friendly, and will not pollute the soil or air during use or disposal. It fully meets the requirements of modern green building projects, especially the mandatory fire protection and environmental protection standards for public buildings and high-rise buildings.

The Type 22 hot-dip galvanized steel tape armor forms a robust protective layer for the cable body, providing comprehensive external protection against compression, impact, friction, and tension. Even when buried in rocky soil, subjected to heavy loads, or impacted by construction machinery, the cable core remains effectively protected. This feature significantly reduces cable damage rates during construction and daily operation, extends the entire service life, and reduces the cost of repeated replacements and maintenance. The galvanizing treatment also prevents the steel tape from rusting in humid environments.

The specially designed outer sheath offers excellent resistance to UV radiation, ozone, low-temperature toughness, and weathering, allowing for stable operation year-round in hot summers, cold winters, rainy and humid regions, and areas with strong UV radiation. The entire cable structure resists aging, cracking, and performance degradation even after decades of operation and can adapt to various regional climates.

Thanks to its optimized material formulation and structural design, this cable boasts excellent flexibility and bending performance. It can adapt to narrow trenches, dense cable trays, and complex bend layouts, facilitating easy cabling even in space-constrained environments. Its lightweight design significantly reduces labor intensity during handling, hoisting, and laying, accelerating overall construction progress and saving labor costs for the engineering team.

The integrated sealed structure effectively prevents moisture penetration, making it suitable for long-term use in damp underground environments and semi-damp work areas. It exhibits a certain degree of resistance to weak acids and alkalis in common soils, reducing performance degradation caused by environmental erosion.

• Environmental Limitations: Avoid prolonged laying in strong acids, alkalis, and corrosive soils. For locations with corrosive media, an anti-corrosion coating or protective sleeve should be added.
• Construction Temperature Control: Do not lay cables when the ambient temperature is below 0°C to prevent brittle cracking of the insulation and sheath. If construction is required at low temperatures, preheat the cable appropriately.
• Bending Standards: Strictly adhere to the specified minimum bending radius during laying. Do not force bending, twisting, or squeezing to prevent insulation damage and potential electrical faults.
• Tightening Force Control: Control the pulling force during cable pulling and laying. Excessive tension can cause conductor deformation, armor displacement, and structural damage. Use professional pulling tools to apply force evenly.
• Direct Burial Construction Specifications: For direct burial applications, lay a fine sand mat around the cable and cover it with protective bricks or concrete slabs to isolate it from sharp stones and hard objects, preventing direct pressure.
• Terminal and Connector Treatment: Select specialized connectors suitable for aluminum alloy conductors. Follow standardized crimping, wiring, and sealing procedures to ensure stable electrical connections and excellent sealing performance at the joints.
• Cable Storage Management: Store finished cables in a dry, ventilated, and cool warehouse. Avoid contact with ground moisture, open flames, and chemical reagents. Avoid prolonged outdoor storage and direct sunlight before installation.
• Layout Planning: Arrange cable spacing appropriately during cable tray installation, reserving space for heat dissipation to prevent overheating under full load.

• Fully compliant with national GB standards; all technical indicators have passed testing and inspection by authoritative third-party institutions, ensuring stable and reliable performance in mass production.
• Provides a complete set of qualification documents: type test reports, flame retardant test reports, smoke and halogen test reports, factory inspection certificates, etc. All documents can be used for project bidding, on-site acceptance, and project filing.
• A rigorous end-to-end quality traceability system: Each batch of products has independent production records, raw material inspection data, and delivery inspection reports, supporting full-cycle quality supervision for large-scale projects.
• Complies with international low-smoke halogen-free, flame-retardant, and armored cable technical specifications, suitable for procurement in key domestic projects and overseas supporting projects.
• Regular product sampling and performance retesting ensure long-term stable quality and meet the continuous supply needs of projects.

Why Choose Our YJLHV22 Cables

• Reliable Raw Materials and Stable Batch Quality:We use high-purity imported aluminum alloy ingots and branded LSZH compounds, equipped with fully automated production lines. From raw material warehousing and semi-finished product processing to finished product delivery, we implement rigorous multi-channel inspections to ensure consistent performance in every batch of cables.
• Flexible Customization Services:In addition to standard specifications, we can provide personalized customization based on project drawings and on-site laying requirements, including conductor cross-sectional area, number of cores, special sheath materials, fixed lengths, and packaging, to meet diverse engineering design needs.
• Professional Full-Cycle Technical Support: Our senior electrical engineers offer free pre-sales selection, load calculation, and wiring scheme optimization services. We also provide on-site construction guidance and technical consultation during project implementation, promptly resolving technical issues encountered by engineers and construction teams.
• Sufficient Inventory and Timely Delivery:We maintain ample inventory of all mainstream standard specifications to meet the needs of small-batch urgent orders and large-volume spot supply. For large, long-lead-time projects, we develop dedicated production plans to ensure delivery schedules and avoid project delays.
• One-stop sourcing solution: We offer a full range of complementary products, including various power cables, cable accessories, connectors, and wiring fittings. Customers can complete their purchases in one place, simplifying the procurement process and reducing supplier management costs.
• Comprehensive long-term after-sales service: We establish dedicated project files for large-scale engineering orders. Our after-sales team regularly tracks product operation status and efficiently responds to technical inquiries and product feedback throughout the cable's lifespan.
• Highly competitive total cost: Compared to copper-armored cables, our products offer significant advantages in procurement costs, transportation costs, and construction labor costs, resulting in better overall economic benefits for long-term engineering projects.