Product Overview
The YJLV22 is a standard armored power cable widely used in medium- and low-voltage fixed power transmission and distribution systems. Featuring compacted stranded pure aluminum conductors, XLPE insulation, an inner bedding layer, double-layer overlapping galvanized steel tape armor, and a weather-resistant PVC outer sheath, this cable offers superior mechanical protection, effectively withstanding crushing forces, impacts, and rodent damage in underground environments. As a fundamental armored cable that balances cost-effectiveness with practicality, it strikes an optimal equilibrium between reliable electrical performance and initial cost control, making it a preferred choice for infrastructure projects where budget efficiency is a priority. Unlike the YJLHV22 model—which utilizes alloy conductors—the YJLV22 employs standard pure aluminum conductors, offering a more competitive unit price. This makes it a top choice for large-scale deployment in sectors such as municipal grid upgrades, residential distribution networks, industrial auxiliary circuits, and small-to-medium-scale renewable energy collection systems, enjoying widespread adoption in international markets.
Model Code Breakdown and Global Compliance Framework
Field Engineering Reference: Model Structure Explained
YJ: Cross-linked polyethylene (XLPE) insulation, featuring high dielectric strength, excellent thermal aging resistance, and low dielectric loss under fluctuating operating loads.
L: Aluminum conductor; offers significant material cost savings compared to copper alternatives while meeting conductivity requirements for standard power distribution circuits.
V: Extruded PVC inner bedding layer, providing a protective barrier between the armor and the insulated core assembly.
22: Double-layer galvanized steel tape armor with an outer PVC sheath; specifically designed for direct-burial underground applications.
Applicable Manufacturing and Testing Standards
- GB/T 12706.1–4-2020: National standard for extruded insulation power cables (rated voltages from 0.6/1kV to 35kV).
- IEC 60502-1, IEC 60502-2: International standards for extruded insulation power cables.
- IEC 60228: Standard for cable conductor classification.
- GB/T 19666: Standard for flame-retardant classification (supports customization for ZA, ZB, ZC, and other flame-retardant grades).
Comprehensive Certification Suite: ISO 9001 Quality Management System certification, CCC mandatory product certification, CE certification, CB certification, full-item type test reports, raw material inspection records, and third-party independent test certificates; fully compliant with documentation submission and project completion audit requirements for international infrastructure tenders.
Structural and Functional Analysis
- Compact Class 2 Stranded Pure Aluminum Conductor
Manufactured using a precision compacting and stranding process, this conductor features enhanced roundness and density, ensuring stable electrical performance during continuous long-distance power transmission. It is compatible with industry-standard aluminum terminal crimping processes and is particularly suitable for large-scale installations of large-cross-section cables where material cost-effectiveness is a priority.
- XLPE Insulation Layer with In-line Eccentricity Control
Insulation thickness and eccentricity are monitored in real-time during extrusion to ensure strict dimensional tolerance control. The material offers excellent dielectric strength, hydrolysis resistance, and thermal stability, effectively inhibiting water-tree aging and insulation degradation caused by long-term exposure to damp underground environments and load-cycling fluctuations.
- Non-hygroscopic PP Filler Strands and Binding Tape
These components fill the interstices between cores to maintain the cable's overall roundness and reduce internal friction during installation and bending. They also form a physical barrier that retards moisture ingress, thereby preserving the integrity of the insulation layer throughout the cable's underground service life.
- PVC Inner Separator Sheath
This layer isolates the steel tape armor from the insulated cores, preventing abrasion during installation and avoiding electrochemical corrosion between the metal armor and internal components when the cable is laid in acidic, alkaline, or saline soil environments.
- Double-layer overlapping galvanized steel tape armor (mechanical protection layer for the cable core)
Utilizes a double-layer overlapping steel tape structure that effectively withstands lateral soil pressure, accidental impacts during excavation, punctures from sharp rocks, and rodent damage. This structural design eliminates the need for additional protective conduit in direct-burial installations.
- Weather-resistant PVC outer sheath
Serving as the external protective layer, this sheath resists soil chemical corrosion, UV degradation, ozone erosion, and moisture ingress; it is suitable for overhead, cable trench, and tunnel installations, as well as various underground conditions, ensuring the long-term structural integrity of the cable.
Comprehensive technical specifications for design and Bill of Quantities (BOQ) preparation
- Rated voltage specifications
Standard low-voltage specifications: 0.6/1kV (widely used in building and municipal power distribution networks)
Custom medium-voltage specifications: 8.7/10kV, 8.7/15kV, 26/35kV (used for substation feeder connections)
- Conductor Cross-Sectional Area Range
Specifications cover 10 mm² to 630 mm², suitable for applications ranging from small branch circuits to heavy-duty main feeders.
- Standard Core Configurations
3-core, 4-core, 5-core, 3+1, 3+2, and 4+1 configurations; core layouts and asymmetrical cross-section combinations can be customized based on customer-provided technical drawings.
- Thermal Operating Parameters
Maximum long-term continuous conductor operating temperature: 90°C
Maximum short-circuit withstand temperature (duration ≤ 5 seconds): 250°C
Minimum ambient temperature for installation: Standard 0°C; a special low-temperature formulation is available for installation environments as low as -20°C.
Rated design service life (under compliant installation and operating conditions): At least 25 years.
- Mandatory Bending Radius Requirements (Critical On-Site Inspection Points)
Multi-core YJLV22 minimum bending radius: 15 × cable outer diameter
Custom single-core YJLV22 minimum bending radius: 20 × cable outer diameter
- Structural Limitations: While the armor layer can withstand pressure and impact loads, it cannot withstand significant axial tensile forces; long-span overhead suspension installation is not recommended.
- Weight and Cost Comparison
For specifications with equivalent current-carrying capacity, the total weight of YJLV22 is only about 50% that of the equivalent YJV22 copper-core armored cable, thereby significantly reducing costs associated with logistics, lifting equipment rental, and on-site manual installation.
Product Differentiation Advantages (Engineering Technical Value and Procurement Economic Value)
Technical Advantages for Electrical Design Engineers
- Compliance with industry standards and high specification versatility
YJLV22 is a globally standardized aluminum-core armored cable; its current-carrying capacity tables, dimensional data, and accessory specifications are well-established and widely recognized by design institutes, third-party auditing bodies, and power authorities. This standardization simplifies processes such as drawing review and approval, technical evaluation during tendering, and final project acceptance.
- Integrated Armoring Simplifies Underground Civil Engineering Design
Featuring built-in double-layer steel tape mechanical protection, this design eliminates the need for complex conduit specifications or installation planning for direct-burial routes. This reduces the workload associated with excavation, conduit laying, and backfilling, while shortening construction timelines for large-scale power distribution network deployments.
- Durable Insulation System Resilient to Underground Environmental Stresses
Utilizing a specialized XLPE insulation formula, the cable inhibits water tree growth and mitigates the risk of insulation breakdown caused by prolonged burial in moist or chemically active soil. This reduces circuit failures during medium- to long-term operation, making it particularly suitable for projects with specific service life requirements.
- Flame-Retardant Ratings Compliant with Building Fire Safety Codes
Options include various flame-retardant ratings (such as ZA, ZB, and ZC) to meet regulatory requirements for tunnel cabling, underground utility tunnels, basement main power feeders, and internal power wiring in high-occupancy public areas.
- Clear Specification Guidelines for Copper-to-Aluminum Cable Replacement
When replacing YJV22 copper cables with YJLV22 aluminum alloy cables, selecting a conductor size one or two steps larger achieves equivalent current-carrying capacity. This allows for the continued use of existing distribution cabinet busbars, terminal enclosures, and wiring layouts, avoiding the need for extensive system redesign.
Lifecycle Economic Advantages for Procurement Managers and EPC Cost Controllers
- Lower initial material costs compared to mainstream armored power cables
The raw material cost of pure aluminum conductors is lower than that of copper-core YJV22 and creep-resistant alloy YJLHV22 cables, significantly reducing total expenditure for large-scale tender procurement projects.
- Lightweight structure reduces end-to-end logistics and installation costs
Lower weight per unit length reduces container shipping fees, labor requirements for loading and unloading, and pulling tension during on-site installation, thereby lowering equipment rental fees and overall indirect construction costs.
- Direct-burial design eliminates conduit material and installation expenses
By eliminating the procurement, transport, and installation of conduits in direct-burial layouts, the share of civil engineering costs in the total project budget is reduced, helping EPC contractors maintain healthier profit margins in their bids.
- Relatively low ongoing operation and maintenance costs
Stable structural performance ensures asset reliability during operation, reducing the frequency of routine inspections, the need for fault repair responses, and costs associated with partial cable replacements for utility operators and property managers.
- Ample ready-stock inventory shortens order delivery times
A consistent inventory of finished products in high-demand standard specifications supports both small-batch sample orders during the project's early stages and urgent restocking needs, effectively preventing delays to construction schedules.
Side-by-Side Selection Comparison Table
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Comparison Item
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YJLV22 Standard Aluminium Armoured Cable
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YJLHV22 Anti-Creep Aluminium Alloy Armoured Cable
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YJV22 Copper Core Armoured Cable
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Conductor Material
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Standard Commercial Pure Aluminium
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AA8030 Anti-Creep Rare Earth Aluminium Alloy
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Electrolytic Copper
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Long-Term Terminal Stability
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Moderate, gradual creep deformation under sustained compression
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Superior, minimal deformation with stable contact resistance
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Excellent
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Initial Procurement Outlay
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Lowest
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Mid-Range
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Highest
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Direct Burial Suitability
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Very Suitable
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Very Suitable
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Very Suitable
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Ideal Project Lifespan Profile
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15–25 Year Standard Infrastructure
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30+ Year High-Reliability Critical Installations
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All High-Spec Critical Power Circuits
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Classification by Application Area + Three Independent Real-World Case Studies
Typical Application Scope
- Renovation of urban low-voltage distribution networks and replacement of buried service cables in residential areas
- Underground main power feeder cables for shopping malls, schools, medical facilities, and complexes comprising mid-to-high-rise residential and office buildings
- Internal fixed power distribution lines in industrial parks and manufacturing plants, as well as auxiliary power circuits for factory equipment
- Collection and interconnection cables between combiner boxes and transformers in small-to-medium-scale ground-mounted photovoltaic projects
- Power cables in roads, bridges, and municipal tunnels susceptible to accidental mechanical damage and stresses from ground settlement or displacement
- Substation outgoing cables and buried interconnection cables between distribution cabinets and box-type transformers
- Auxiliary power supply cables for infrastructure surrounding mining areas, and cables for non-critical circuits within chemical industrial parks
Case Study 1: 11 MW Distributed PV Project Cluster in Southeast Asia
Project Requirements: Installation of underground collection lines connecting PV combiner boxes to box-type transformers; high total cable volume; strict overall capital budget constraints; requirement for basic mechanical protection for underground use.
Selected Solution: 0.6/1kV YJLV22 3×150mm² aluminum-core armored cable; total supply length of 71 km.
Project Outcome: Total cable procurement costs were reduced by 36% compared to the original design using YJV22 copper-core cables. The reduced cable weight accelerated on-site excavation and installation; the project successfully passed the local power authority's completion inspection and has operated stably for three full years post-grid connection without any faults.
Case Study 2: Residential Grid Renovation Tender in a Central Asian City
Project Requirements: Removal of aging overhead lines across 12 residential complexes and replacement with underground armored cables; large-scale procurement; cost control as the primary consideration; compliance with local power authority acceptance standards.
Selected Solution: Bulk supply of YJLV22 armored cables totaling 145 km in various specifications, covering standard 4-core and 3+1 core configurations.
Project Outcome: Highly competitive unit pricing effectively controlled the overall investment for the tender; standardized product specifications streamlined the on-site inspection and acceptance processes. The city's power authority subsequently designated YJLV22 as the benchmark aluminum-core cable model for all future residential grid upgrade and renovation tender frameworks.
Case Study 3: Civil Works for Auxiliary Power Distribution in an Industrial Park
Project Requirements: Laying underground main power supply lines for factory auxiliary equipment, with the route following roadside green belts; the system required resilience against accidental excavation damage; the project budget was set at a mid-range level.
Specified Solution: 0.6/1kV YJLV22 4×185+1×95mm² cable, with a total supply length of 8.2 km.
Project Outcome: Verified by an independent electrical consultant, the current-carrying capacity fully met design load parameters; total construction costs were reduced by 28% compared to a copper-core cable solution. The steel-tape armor successfully prevented accidental cable damage during subsequent road maintenance; the project successfully passed electrical safety compliance inspections and fire department filing requirements.
Key Selection and Installation Guidelines for Design Engineers and Site Supervisors
- Sizing Rules for Aluminum-Core Alternatives to Copper-Core Cables
When specifying YJLV22 cables as alternatives to YJV22 copper-core armored cables, the conductor cross-sectional area must be increased by one or two sizes to maintain equivalent current-carrying capacity. Our technical team provides free, customized ampacity calculation tables and comparative alternative proposals to support drawing preparation and client design reviews.
- Controlled Installation Standards for Aluminum-to-Copper Connections
All cable termination points must utilize copper-aluminum transition lugs (bimetallic terminals). Direct contact between bare aluminum conductors and copper busbars is strictly prohibited to prevent electrochemical reactions, which could otherwise lead to increased contact resistance and excessive joint temperatures over time.
- Applicable Installation Environments and Limitations
Approved installation methods include direct burial, laying in cable trenches or tunnels, and indoor rack mounting. This product is not suitable for long-span overhead installations involving tension or for applications subject to continuous axial tensile loads. Single-core AC YJLV22 cables must not be installed inside magnetic metal conduits.
- Mandatory Armoring Grounding Requirements
Both ends of the steel tape armor layer must be grounded in accordance with relevant electrical standards to prevent the accumulation of induced voltage within the metal armor, thereby avoiding potential operational hazards.
- Storage, Transport, and Handling Guidelines
Cable reels should be stored in a dry, well-ventilated warehouse; prolonged exposure to standing water outdoors or direct, unshielded ultraviolet radiation must be avoided. Handle with care during loading, transport, and unloading to prevent damage, sheath cracking, or structural impairment caused by severe impacts.
Why Choose Our YJLV22 Cables for Tenders, Procurement, and EPC Projects?
- Comprehensive Documentation for Tenders and Compliance
All production processes strictly adhere to GB/T 12706 and relevant IEC international standards. We provide a complimentary, full suite of factory qualification documents, type test reports, third-party certifications, and editable technical data sheets, fully satisfying documentation review and submission requirements for global tenders and project acceptance inspections.
- Rigorous Raw Material Selection and End-to-End Quality Control
We use only certified prime aluminum rods and high-quality XLPE insulation materials. Key production lines—including stranding, extrusion, and armoring—are equipped with in-line dimensional monitoring systems. This ensures high consistency in dimensions and electrical performance across batches, minimizing the risk of non-conforming products during incoming quality inspections for large-volume orders.
- Flexible Customization to Meet Specific Project Needs
We offer a wide range of customization options, including flame-retardant models (ZA/ZB/ZC), production of 10kV/15kV/35kV medium-voltage cables, cut-to-length supply, and export-grade packaging on wooden or steel reels tailored to specific technical specifications.
- Factory-Direct Pricing and Flexible Order Quantities
Supplied directly from our own manufacturing base, eliminating intermediary markups. We support small-batch sample trials for pre-project qualification testing, offer priority scheduling for bulk orders, and maintain stock of common specifications to ensure rapid delivery.
- Full-lifecycle technical support from a professional electrical engineering team
Our cable design engineers provide complimentary selection consultation, comparative reports on copper-versus-aluminum options, routing optimization advice, and standardized after-sales quality tracking. These services are backed by formal, long-term product warranties to ensure complete peace of mind for our customers.
- Extensive experience in cross-border exports for international infrastructure projects
We have established rigorous export packaging standards, provide comprehensive support for customs documentation, and coordinate global logistics. We have a proven track record of supplying power infrastructure projects across Southeast Asia, Central Asia, Africa, the Middle East, and Latin America, and we are well-versed in the specific regional requirements for inspection, acceptance, and regulatory compliance.
Frequently Asked Questions (FAQ)
Q1: What are the main differences between YJLV22 and YJLHV22 aluminum-core armored cables?
A1: YJLV22 utilizes standard pure aluminum conductors; it offers a lower initial procurement cost and is suitable for cost-sensitive projects with moderate service life requirements. YJLHV22 employs creep-resistant rare-earth aluminum alloy conductors, which effectively mitigate issues such as terminal deformation and thermal instability; it is better suited for long-lifecycle asset projects requiring over 30 years of continuous, reliable operation. Customers can select the appropriate cable based on their project's design lifespan and budget requirements.
Q2: Can YJLV22 cables be laid directly underground without protective conduit?
A2: Yes, direct burial is fully permissible without the need for additional conduit. Featuring a double steel-tape armored structure, the cable offers excellent resistance to compression, mechanical impact, and rodent damage; consequently, direct burial is the most cost-effective installation method for YJLV22, saving customers money on both materials and civil engineering costs.
Q3: In engineering design, can YJLV22 fully replace YJV22 copper-core armored cable?
A3: Yes. By appropriately increasing the conductor cross-sectional area to meet current-carrying capacity requirements, YJLV22 can match the performance of YJV22 in terms of both current-carrying capacity and mechanical protection. As a cost-effective alternative, it is widely used globally in municipal upgrades, industrial parks, and renewable energy projects for non-critical power distribution circuits.
Q4: What certification documents can you provide to meet international tender requirements?
A4: Upon request, we can provide manufacturing licenses, ISO9001, CCC, CE, and CB certifications, comprehensive type test reports, raw material inspection records, independent third-party certificates, and technical data sheets customized for the specific tender project.
Q5: What is the typical production and delivery lead time for large-volume YJLV22 orders?
A5: Standard stock specifications can be shipped within 3–7 working days; the lead time for customized flame-retardant models and custom medium-voltage products is 10–20 working days. For EPC project orders with tight schedules, we can arrange priority production to ensure the project timeline remains on track.
Q6: How can overheating at the aluminum-to-copper connection point be prevented during YJLV22 cable installation?
A6:We recommend using specialized copper-aluminum transition lugs and can provide guidance on selecting the right components. Installation performed in strict accordance with standard crimping procedures, combined with the application of an anti-corrosion coating, effectively eliminates the risks of electrochemical corrosion and abnormal temperature rise at connection points.
