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{"title":"Low Voltage YJV22 Armored Cable for General Power Distribution & Fixed","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/76\/c7ed94f9abdc5a02f122e537ee2b-200x200-1\/low_voltage_yjv22_armored_cable_for_general_power_distribution_26_fixed_installation.jpg","attrs":{"Brand Name":"JinHong","Model Number":"YJV22","Certification":"CE\u3001ROHS","Place of Origin":"Anhui China"}}
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YJLHV22 (8.7/15kV) is a medium-voltage (MV) power cable designed specifically for 10kV distribution networks. It features 8000 series aluminum alloy conductors, cross-linked polyethylene (XLPE) insulation, copper tape shielding, galvanized steel tape armor, and a low-smoke halogen-free (LSZH) outer sheath. Rated at 8.7/15kV (Um=17.5kV), it is designed for applications such as urban power grids, industrial parks, critical public utilities, and renewable energy projects, offering high safety, mechanical protection, fire resistance, and cost-effectiveness.
Compared to traditional copper-core YJV22 or aluminum-core YJLV22 cables, YJLHV22 (8.7/15kV) offers advantages such as lighter weight, superior fire/smoke resistance, robust armor, and stable electrical performance, making it the preferred choice for engineers and procurement personnel in high-reliability, fire-resistant, and budget-sensitive medium-voltage projects.
Technical Specifications and Structure
2.1 Multi-layer Structure (Precision Design)
Conductor: Tightly stranded 8000 series (AA8030) aluminum alloy, high conductivity, creep resistance, fatigue resistance, tensile strength superior to pure aluminum
Conductor Shielding Layer: Extruded semiconducting compound, uniform electric field, reducing the risk of partial discharge
Insulation Layer: Cross-linked polyethylene (XLPE), 90°C long-term rated temperature, high dielectric strength, heat/aging resistance, low loss tangent
Operating Environment: -40°C to +90°C, Humidity ≤95% (non-condensing)
Impact Withstand Voltage: 112kV (peak)
2.3 Compliance and Standards
GB/T 31840 (Aluminum Alloy Power Cables)
GB/T 12706 (Medium Voltage Cross-linked Polyethylene Insulated Cables)
IEC 60228, IEC 60502, IEC 60332, IEC 60754
CPR (Building Product Regulation) B2ca-s1a, d0, a1 Class
3. Application Scenarios (Engineers and Procurement Focus)
3.1 Urban Power Grids and Distribution Networks
10kV trunk and branch feeders in urban renewal, new district, and smart grid projects
Underground utility tunnels/pipeline corridors: Steel-lined armor resists soil pressure, vehicle vibration, and minor ground movement.
Substation outgoing and incoming lines: High insulation reliability and fault current capacity.
3.2 Industrial Parks and Heavy Industries
Manufacturing, chemical, pharmaceutical, and food processing: Vibration resistant, dustproof, moisture-proof, and resistant to minor chemical corrosion.
Data centers and technology parks: Low smoke halogen-free (LSZH) ensures low smoke during fires, protecting critical equipment and ensuring safe evacuation.
Mining and metallurgy: Compression and impact resistance under harsh geological conditions.
3.3 Important Public Buildings and High-Rise Buildings
Hospitals, schools, stadiums, and shopping malls: Strict fire safety requirements; Low smoke halogen-free (LSZH) Prevents inhalation of toxic fumes
High-rise commercial and residential buildings: Shaft and riser installation; Class A flame retardant prevents fire spread
Transportation hubs (subways, railways, airports): Enclosed spaces require low smoke, halogen-free, and high fire resistance.
3.4 Renewable Energy and Utility Projects
Solar/Wind Farm Hubs: Direct burial, UV resistant, long-term outdoor stability
Water and Wastewater Treatment Plants: Humid environments, chemical resistance, armored protection
Landscape and Municipal Lighting: Outdoor, underground, or overhead installation
3.5 Special Installation Conditions
Direct burial/Cable trench/Pipe: Armored to withstand rocks, backfill, and external impacts
Cable tray/Aerial/Wall mounting: Good flexibility, suitable for dense wiring and bending
Vertical/Steep slope installation: Armored and alloy conductors provide tensile strength
4. Core Performance and Competitive Advantages
4.1 Superior Electrical Reliability
XLPE (Cross-linked Polyethylene) Insulation: High dielectric strength, low partial discharge, long-term stability at 90°C
Copper Tape Shielding: Ensures uniform electric field, safe fault current return, and electromagnetic interference shielding
Low Thermal Resistance: Optimized layered design reduces operating temperature rise and extends service life
4.2 Class A Fire Safety and Environmental Protection
Low Smoke Halogen-Free (LSZH) System: Halogen-free, produces no toxic/corrosive gases (HCl, SOx) in a fire
Ultra-Low Smoke: High light transmittance ensures visibility during evacuation
Class A Flame Retardant: Self-extinguishing, prevents fire spread (critical for buildings/tunnels)
Environmentally Friendly: Recyclable materials, does not cause soil/air pollution during use and disposal
4.3 Heavy Machinery Protection
Double-layer steel strip armor: Withstands compressive forces up to 20kN/m and impact forces up to 5kJ/m
Rust-resistant galvanized steel: Provides long-term stability in humid/underground environments
40-50% lighter than copper YJV22: Reduces transportation, handling, and installation labor costs
30-40% lower material costs than copper: Achieves equivalent electrical performance with lower capital expenditure
Lower installation costs: Easier to pull, fewer supports, less civil engineering work
4.5 Excellent Workability and Durability
Good flexibility: Bend radius smaller than copper cable, ideal for narrow shafts/trenches
High corrosion resistance: Aluminum alloy + low-smoke halogen-free sheath resists corrosion from coastal salt, industrial atmospheres, and soil chemicals
Long service life: Designed for over 40 years under normal conditions; extremely low maintenance
5. Engineering and Procurement Key Points
5.1 Design and Selection Guidelines
Voltage Matching: Strictly applicable to 10kV (8.7/15kV) systems; not permitted for higher voltage levels.
Cross-section Selection: Calculated based on load current, voltage drop, and short-circuit capacity; a 20% derating should be considered for direct burial in high-temperature soil.
Fireproof Areas: Mandatory use of Low Smoke Halogen-Free (LSZH) + Class A flame-retardant materials (e.g., hospitals, subways, data centers).
Harsh Environments: For coastal/chemical areas, reinforced LSZH sheathing + corrosion-resistant armor coating should be specified.
5.2 Installation and Laying Specifications
Temperature Control: Not permitted for laying below 0°C; avoid impact/bending in cold weather.
Bending Radius: The bending radius of a 3-core cable should be 15 times its outer diameter; sharp bends or kinks are prohibited.
Tensive Force: Maximum tensile force ≤ Avoid overstretching when pulling cables with a cross-sectional area of 3 N/mm².
Direct burial: Lay a 100 mm layer of fine sand under/above the cable; cover with concrete slabs or bricks to prevent damage from sharp objects.
Termination and joints: Use aluminum alloy compatible terminals; install by qualified personnel to avoid overheating at connections.
Grounding: Both ends of the metal shielding and armor must be reliably grounded according to IEC 60287 standards.
3. Procurement and Acceptance Checklist
Documents: Verify type test report, factory test report, flame retardant/smoke/halogen test report, and Certificate of Conformity (COC)
Visual Inspection: Inspect the sheath for cracks, dents, or damage; confirm that markings are clear and continuous (dimensions, voltage, standards)
Sampling Testing: For bulk orders, perform partial discharge, dielectric strength, and sheath resistance tests according to GB/T 12706 standard.
Storage: Store in a dry, well-ventilated warehouse; avoid prolonged exposure to outdoor environments; store in reels, do not stack flat.
Practical Application Cases
Case 1: Urban 10kV Power Grid Upgrade (East China)
A municipal project replaced its old copper cables with YJLHV22-8.7/15kV-3×400mm² cables for a 12-kilometer underground main power line. Key advantages: 35% cost reduction, compliance with low-smoke halogen-free fire-resistant standards, and armor reinforcement for busy traffic areas. After five years of operation, no faults occurred; maintenance costs were reduced by 60% compared to the old copper cables.
Case 2: Hospital 10kV Main Power Supply (Central China)
A hospital with 1200 beds selected YJLHV22-8.7/15kV-3×300mm² cables as its main incoming line. Requirements: Class A flame retardant, low-smoke, halogen-free, ensuring life safety. The cable passed the fire department's inspection and has been operating continuously for 24 hours a day for 4 years with stable performance.
Case Study 3: Industrial Park and Data Center (South China)
A 500,000-square-meter high-tech park (including two data centers) used YJLHV22-8.7/15kV-3×240mm² cables for power distribution in the factory and data centers. Advantages: Lightweight (30% faster installation), low-smoke halogen-free (LSZH) characteristics ensure fire safety for the data centers, and the armored structure facilitates direct burial. The project was completed on time, with total costs reduced by 18% compared to copper core solutions.
Case Study 4: Solar Power Plant Data Collection Line (Northwest China)
A 50MW solar power plant used YJLHV22-8.7/15kV-3×185mm² insulation material to lay 8 kilometers of directly buried data collection lines. Key advantages: strong UV resistance and weather resistance, able to withstand desert rock erosion, and low cost. It withstood extreme temperatures (-35℃ to +45℃) and sandstorms, operating without failure for three years.
7. Why Choose Our YJLHV22 (8.7/15kV)
7.1 Superior Quality and Strict Quality Control
High-purity 8000 series aluminum alloy: Stable conductivity and excellent creep resistance
360° online XLPE thickness monitoring: Ensures uniform insulation with no weak points
100% factory tested: Each reel undergoes partial discharge, dielectric strength, and sheath integrity testing
ISO 9001/14001/45001 certified: Comprehensive quality and environmental management system
7.2 Customized Services and Engineering Support
Customizable cross-sections and lengths: 35–630mm², cut to project requirements
Free engineering consultation: Load calculation, voltage drop analysis, and installation plan design
On-site technical guidance: Installation supervision, termination training, and troubleshooting
7.3 Reliable Delivery and Inventory
Large-volume order capacity: Production capacity exceeds 50 kilometers per month, meeting the needs of large-scale projects.
