YJLV22 Aluminum Conductor XLPE Insulated Double Steel Tape Armoured Budget-Friendly Direct Burial Distribution Cable

The YJLV22 is the most widely used aluminum-conductor, steel-tape armored power cable in medium- and low-voltage fixed power transmission and distribution systems. Featuring a stranded pure aluminum conductor, extruded XLPE insulation, an inner bedding layer, double-layer overlapping galvanized steel tape armor, and a weather-resistant PVC outer sheath, this cable offers reliable crush and impact resistance, making it suitable for underground installation. As a cost-effective armored cable solution, it meets standard direct-burial distribution requirements while effectively controlling initial procurement costs; consequently, it is widely used in global infrastructure projects—such as grid upgrades and civil building power distribution—that require reliable performance but do not involve ultra-long-distance runs. Unlike creep-resistant alloy cables (YJLHV22), the YJLV22 utilizes standard industrial-grade pure aluminum conductors, offering a more competitive price point, which makes it the preferred choice for large-scale, budget-conscious projects.

• YJ = XLPE (Cross-linked Polyethylene) insulation; features high dielectric strength, resistance to thermal aging, and low dielectric loss.
• L = Aluminum conductor; lightweight material offering significant cost advantages over electrolytic copper.
• V = PVC inner sheath; serves to prevent friction and electrochemical reactions between the armor layer and the internal insulation structure.
• 22 = Double-layer overlapping galvanized steel tape armor + PVC outer sheath; provides mechanical protection and is suitable for direct burial in soil.

• GB/T 12706.1–4:2020 – National standards for extruded insulation power cables (rated voltages 0.6/1 kV to 35 kV)
• IEC 60502-1 & IEC 60502-2 – International standards for extruded insulation power cables
• IEC 60228 – Standard for conductor construction
• GB/T 19666 – Flame-retardant grade specifications (customizable flame-retardant versions: ZA, ZB, ZC)

Comprehensive documentation: ISO9001 Quality Management System certification, CCC mandatory certification, CE certification, CB certification, full-item type test reports, raw material inspection reports, and third-party authoritative test certificates; fully compliant with requirements for international tendering and project acceptance audits.

Utilizes standard circular stranded aluminum wires that have undergone a compaction process; this enhances conductor compactness and overall roundness, ensuring stable electrical performance during long-term, continuous power transmission. It offers significant cost advantages for large-cross-section applications and is compatible with standard terminal crimping procedures for aluminum cables.

Real-time online monitoring of thickness and eccentricity during extrusion ensures strict control over insulation dimensional tolerances. It offers superior resistance to dielectric breakdown, hydrolysis, and thermal degradation, effectively withstanding insulation aging caused by long-term load fluctuations and moisture in underground environments.

Fills the interstices between multi-core conductors to maintain a uniform, circular profile; minimizes internal friction and compression during bending and pulling operations; and blocks external moisture ingress, thereby preserving the integrity of the insulation layer during long-term underground service.

Forms a barrier between the steel tape armor and the insulated core, preventing direct abrasion damage during bending and inhibiting chemical corrosion reactions between the galvanized steel tape and the insulation material in acidic, alkaline, or saline soil environments.

Utilizes a double-layer overlapping galvanized steel tape wrap to withstand lateral soil pressure, accidental excavation impacts, sharp rock punctures, and rodent damage; this core structural design supports direct-burial installation without the need for additional protective conduit.

Provides comprehensive external protection against soil corrosion, UV radiation, ozone aging, and moisture ingress; suitable for outdoor exposure, cable trenches, tunnels, and complex underground installations, ensuring structural integrity under various operating conditions.

• Standard low-voltage ratings: 0.6/1kV (most widely used specifications in building and municipal power distribution)
• Customizable medium-voltage ratings: 8.7/10kV, 8.7/15kV, 26/35kV (suitable for substation feeder trunk lines)

10mm² to 630mm²; a complete range of specifications covering small, medium, and large cross-sections to meet diverse engineering requirements

3-core, 4-core, 5-core, 3+1, 3+2, and 4+1 configurations; supports customization of specific core counts and cross-section combinations based on client construction drawings

• Maximum long-term continuous operating temperature of conductor: 90°C
• Maximum short-circuit withstand temperature (duration ≤ 5 seconds): 250°C
• Minimum ambient temperature for installation: 0°C (standard version); -20°C (low-temperature custom version)
• Design service life under proper installation and operating conditions: ≥ 25 years

• Minimum bending radius for multi-core YJLV22: ≥ 15 times the cable outer diameter
• Minimum bending radius for single-core custom YJLV22: ≥ 20 times the cable outer diameter

This cable can withstand external mechanical compression and impact but cannot withstand significant axial tension; long-distance vertical suspended installation is not recommended.

For equivalent current-carrying capacity, the total weight of this cable is only about 50% that of a standard YJV22 copper-core armored cable of the same specification. This effectively reduces transportation costs, hoisting equipment rental fees, and on-site installation labor costs.

• Mature, standardized structure with strong design compatibility
• Integrated steel-tape armor simplifies direct-burial project layouts
• Stable performance and resistance to underground environmental corrosion
• Flexible flame-retardant customization compliant with fire safety regulations
• Clear guidelines for substituting copper cables

• Lowest raw material cost per unit among mainstream armored power cables
• Lightweight characteristics reduce overall logistics and construction costs.
• Simplified direct-burial installation reduces civil engineering budgets.
• Low investment in routine maintenance during the operational phase.
• Ample stock reserves shorten order delivery times.

• Renovation projects for urban low-voltage municipal power grids and underground residential service lines
• Underground main power lines for shopping malls, schools, hospitals, mid-to-high-rise office buildings, and residential complexes
• Fixed power distribution lines for industrial parks, manufacturing plants, and auxiliary equipment circuits within factory premises
• Collection lines for small-to-medium-sized distributed photovoltaic power plants and underground cable layouts for pad-mounted transformers
• Power supply routes for roads, bridges, and municipal tunnels exposed to risks of external mechanical impact and crushing damage
• Underground connection cables for distribution station outgoing feeders and links between distribution cabinets and ground-mounted transformers
• Underground transmission lines for auxiliary power supply around mining areas and non-critical circuits in chemical industrial parks

Project Requirements: Direct-buried collection lines connecting PV combiner boxes to pad-mounted transformers; required basic crush resistance; strict control over the total project budget; and a massive volume of cable required.

Solution Adopted: 0.6/1kV YJLV22 3×150mm² aluminum-core armored cable; total supply of 64 km.

Project Outcome: Compared to the original design using YJV22 copper-core cables, total cable procurement costs were reduced by 37%; the lightweight nature of the cable accelerated on-site trenching and installation progress; the project successfully passed the local utility authority's completion inspection and has operated continuously for three years post-grid connection without any line faults.

Project Requirements: Replace aging overhead lines with underground power cables across 12 residential blocks; large order volume; emphasis on cost control; compliance with municipal power authority acceptance standards required.

Solution Implemented: Bulk supply of YJLV22 series armored cables in various specifications, totaling 138 km, covering standard 4-core and "3+1" core configurations.

Project Outcome: Economical unit pricing effectively controlled the total investment; standardized specifications simplified inspection and acceptance procedures; the local power bureau designated YJLV22 as the preferred aluminum-core cable model for future urban community grid renovation tenders.

Project Requirements: Lay underground power supply mains for auxiliary equipment in factory workshops; route along roadside green belts; require resistance to accidental excavation damage during construction; mid-range budget.

Solution Implemented: 0.6/1kV YJLV22 4×185+1×95mm² cables; total supply length of 7.6 km.

Project Outcome: Current-carrying capacity, verified by the electrical design institute, fully met design load requirements; total construction costs were reduced by 29% compared to a copper-core cable solution; the steel-tape armor layer effectively prevented accidental cable damage during subsequent roadworks; the entire system successfully passed electrical safety inspections and fire safety filing requirements.

When replacing YJV22 copper-core armored cables with YJLV22 aluminum-core cables, the cross-sectional size should be increased by one or two standard gauge steps to ensure equivalent current-carrying capacity. Our technical team offers complimentary customized current-carrying capacity calculation charts and comparative data on alternatives to assist with design documentation.

Cable terminal connections must utilize specialized copper-aluminum transition terminals (bimetallic lugs); direct contact between aluminum conductors and copper busbars is strictly prohibited to prevent electrochemical corrosion, which can lead to increased contact resistance and abnormal overheating at the connection point.

Suitable installation methods include direct burial, cable trench laying, tunnel installation, and mounting on indoor wall brackets; these cables are not suitable for long-distance overhead suspension or applications subject to significant axial tension. Under AC circuit operating conditions, single-core YJLV22 cables must not be installed inside magnetic metal conduits.

Both ends of the steel-tape armor layer must be reliably grounded in accordance with electrical standards to prevent the accumulation of induced voltage within the metal armor, which could pose potential safety risks.

Cable reels should be stored in a dry, well-ventilated warehouse and protected from prolonged exposure to rain and direct sunlight. During loading, unloading, and transportation, care must be taken to avoid severe impacts, crushing, or dropping the reels, so as to prevent cracking of the outer sheath or damage to the internal structure.

All products are manufactured in strict accordance with GB/T 12706 and IEC international standards. We provide a complete package of factory qualification certificates, type test reports, third-party inspection documents, and editable technical data sheets free of charge, meeting all documentation review and submission requirements for global tenders and project acceptance processes.

We utilize high-quality aluminum rods and high-purity XLPE insulation materials. Key processes—such as extrusion, stranding, and armoring—are equipped with in-line dimensional monitoring systems to ensure consistent dimensions and stable electrical performance across production batches, thereby minimizing the risk of rejection during incoming quality inspections for large-volume orders.

We offer customization options including flame-retardant modifications (ZA/ZB/ZC ratings), medium-voltage cable production (10kV/15kV/35kV), and cut-to-length services. Additionally, we provide tailored packaging solutions—such as wooden reels, steel reels, and export-grade packaging—based on specific technical requirements.

With our own manufacturing facilities, we eliminate intermediary markups. We support small-batch sample orders for initial project validation and prioritize large-volume orders in our production schedule. We maintain ready stock for standard specifications to ensure rapid delivery.

Our expert cable engineering team provides free consultation on cable selection, comparative analysis of copper-versus-aluminum solutions, advice on optimizing installation routes, remote technical guidance, and post-sales quality monitoring. We also offer long-term quality warranties for your peace of mind.

We offer comprehensive export packaging solutions, standardized customs documentation capabilities, and global logistics coordination. We have extensive experience delivering power infrastructure projects across Southeast Asia, Central Asia, Africa, the Middle East, and Latin America, and are well-versed in local inspection, acceptance, and regulatory filing requirements.

• Q1: What are the main differences between YJLV22 and YJLHV22 aluminum-core armored cables?
  A1: YJLV22 utilizes standard pure aluminum conductors and offers a lower initial cost, making it suitable for cost-sensitive projects with shorter service lifecycles. YJLHV22 employs creep-resistant rare-earth aluminum alloy conductors, which effectively mitigate risks associated with terminal deformation and overheating; it is ideal for long-term projects requiring stable operation for over 30 years. Customers can make their selection based on the project's lifecycle and budget requirements.
• Q2: Can YJLV22 be buried directly underground without protective conduit?
  A2:Yes. Its double steel-tape armor structure provides reliable protection against crushing, impact, and rodent damage. Direct burial is the most economical and typical installation method for YJLV22, helping customers save on conduit procurement and trench excavation costs.
• Q3: Can YJLV22 fully replace YJV22 copper-core armored cable in engineering designs?
  A3: Yes. By appropriately upgrading the conductor cross-section, YJLV22 can achieve current-carrying capacity and mechanical protection performance comparable to YJV22. It has currently become a mainstream, cost-effective alternative for non-critical power supply circuits in municipal renovation, industrial park, and photovoltaic projects worldwide.
• Q4: What certification documents can you provide to meet international tender submission requirements?
  A4: We can provide manufacturing qualification certificates, ISO9001 quality system certification, CCC, CE, and CB certifications, complete type test reports, raw material inspection reports, third-party authoritative test certificates, and customized technical parameter sheets for bidding.
• Q5: What is the production and delivery lead time for large-volume orders of YJLV22?
  A5: Standardized products available in stock can be shipped within 3–7 working days; the production cycle for customized flame-retardant models and medium-voltage custom models is 10–20 working days; for urgent EPC project orders, we can negotiate priority scheduling to ensure the project timeline is met.
• Q6: How can the issue of overheating at the aluminum-to-copper connection point be effectively resolved during the installation of YJLV22 cables?
  A6: We recommend using compatible copper-aluminum transition terminals and can provide a list of specific terminal selection recommendations. By strictly adhering to standard crimping procedures and applying anti-corrosion coatings, the risks of electrochemical corrosion and abnormal temperature rise at the connection point can be completely eliminated.