High Safety 8.7/15kV YJLHV22 Cable LSZH & Armored for Critical Infrastructure
Productspecificatie
Plaats van herkomst:
Anhui China
Merknaam:
JinHong
Certificering:
CE、ROHS
Modelnummer:
YJLHV22
Minimale bestelhoeveelheid:
500M
Prijs:
15-32USD/m
Levertijd:
30DAGEN
Betalingsvoorwaarden:
T/T
Productoverzicht
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 ...
Productdetails
Markeren:
8.7/15kV YJLHV22 armored cable
,LSZH high safety electrical cable
,critical infrastructure armored power cable
Productbeschrijving
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
2.3 Compliance and Standards
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
- Insulation Shielding Layer: Extruded semiconducting XLPE, uniform interface, minimizing stress concentration
- Metallic Shielding Layer: Copper strip (overlapping), carries fault current, electromagnetic shielding, grounding safety
- Inner Sheath: Low smoke halogen-free (LSZH) compound, isolates the armor layer from the core wire, moisture-proof
- Armor Layer: Galvanized steel strip (type 22) double armor, high compressive/impact resistance, rust prevention, vibration resistance
- Outer Sheath: Low smoke halogen-free (LSZH) Compound (low smoke, halogen-free) modified polyolefin, UV/ozone resistant/weather resistant, flame retardant, non-toxic when burning.
2.2 Main Electrical and Mechanical Parameters
- Rated Voltage: 8.7/15kV (Uo/U), Um=17.5kV (10kV system)
- Frequency: 50Hz
- Conductor Cross-sectional Area: 35mm² – 630mm² (standard three-core; single-core optional)
- Core Configuration: Three-core (main line), single-core (special)
- Long-term Conductor Temperature: ≤90°C
- Maximum Short-circuit Temperature: 250°C (≤5s)
- Flame Retardant Rating: GB/T 19666 Class A / IEC 60332-3 Class A
- Smoke Density: Light transmittance ≥70% (combustion)
- Halogen Content: Zero halogen (IEC 60754-1/2)
- Minimum Bending Radius:
- Three-core: 15 × outer diameter (installation)
- Fixed Installation: 12 × Outer Diameter
- Installation Temperature: ≥0°C (non-cold bending)
- 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
- High tensile strength: Alloy conductor + armor supports long-span installations (e.g., bridges)
4.4 Lightweight and Cost-Effective
- 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.
- Safe packaging: Export-grade wood rolls, moisture-proof packaging.
7.4 Full-cycle service and compliance
- Complete certification documentation: All test reports and compliance documents, meeting bidding/acceptance requirements.
- After-sales support: 24/7 technical hotline; long-term performance tracking.
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