Armoured Cable | Heavy Duty Buried Power Cable for Global Engineering Infrastructure Power Distribution
Product Summary
Product Description
YJLV22 is a globally mainstream standard low-voltage armored power cable conforming to IEC 60502 and international electrical engineering design specifications, specifically designed for 0.6/1kV AC transmission and distribution systems. This cable features a high-conductivity solid/compacted stranded copper conductor, high-temperature resistant cross-linked polyethylene (XLPE) core insulation, double-layer galvanized steel tape mechanical armor, and a weather-resistant modified polyvinyl chloride (PVC) outer sheath. It is specifically designed for fixed installation projects with high requirements for mechanical protection, long-term operational stability, and circuit safety.
Unlike ordinary unarmored YJLV cables, the integrated steel tape armor layer of YJLV22 provides excellent resistance to external impact and compression, enabling stable operation in underground, trench, and harsh outdoor environments. Its standardized electrical performance, mature structural design, and reasonable total deployment cost make it the most widely used backbone power cable in global civil buildings, industrial park construction, and municipal power upgrade projects.
Through long-term full-load cyclic operation tests, accelerated thermal aging tests, and environmental adaptability verification, YJLV22 maintains stable conductor resistance, consistent insulation dielectric strength, and complete overall structure under long-term temperature fluctuations, seasonal climate changes, and continuous heavy load operation conditions, effectively reducing the operational fluctuation risk of the entire power distribution system.
- Rated Voltage:
- 0.6/1kV AC
- Conductor:
- High-purity electrolytic copper, tightly concentrically stranded
- Maximum Long-Term Operating Temperature:
- 90℃
- Short-Circuit Permissible Temperature:
- 250℃ (maximum duration 5 seconds)
- Insulation Material:
- High-density cross-linked polyethylene (XLPE)
- Protective Armor:
- Double-layer hot-dip galvanized steel tape
- Outer Sheath:
- Anti-aging, flame-retardant, and waterproof modified polyvinyl chloride (PVC)
- Core Configuration:
- 3-core, 4-core, 5-core, 3+1-core, 3+2-core full range
- Cross-sectional Area Range:
- 10mm²～630mm² (complete specifications)
- Minimum Ambient Temperature for Laying:
- 0℃
- Minimum Bending Radius:
- 15 times the cable outer diameter
- Standards Compliance:
- IEC 60502-1, IEC 60332, GB/T 12706
- Optional Ratings:
- ZA/ZB/ZC flame retardant rating, customizable
High-quality, low-impedance copper conductors ensure extremely low line losses during medium- to long-distance power transmission. The optimized, compact stranded structure accelerates internal heat dissipation, preventing localized overheating under continuous overload, maintaining stable and uniform current transmission, and perfectly meeting the high-stability power supply requirements of heavy-duty industrial equipment.
XLPE insulation possesses excellent electrical insulation properties, strong resistance to partial discharge, and superior anti-aging properties. Even after decades of operation, it will not exhibit insulation shrinkage, cracking, or performance degradation, effectively isolating internal current and external electromagnetic interference. Its high-temperature resistance significantly enhances the cable's overload capacity, with a designed service life of over 30 years.
The enclosed steel tape armor layer effectively resists soil compression, construction machinery impact, rock friction, and rodent damage in underground laying scenarios. Even under minor ground settlement and external construction disturbances, it protects the internal core structure from deformation and damage, thus significantly improving operational safety under complex terrain laying conditions.
The upgraded formula outer sheath offers excellent waterproof, moisture-proof, sun-proof, and ozone-resistant properties, and also exhibits some resistance to weak acid and alkali corrosion. It can adapt to dry and cold regions, humid subtropical regions, and temperate continental climate zones, enabling stable laying and operation year-round in multiple regions worldwide.
The unified external dimensions and internal wiring standards are highly compatible with mainstream international cable terminals, distribution cabinets, cable connectors, and junction boxes. Global engineers can complete drawing design, circuit matching, and subsequent daily maintenance according to common industry standards, greatly shortening project design cycles and on-site construction integration periods.
Inherent flame retardant and self-extinguishing properties prevent the spread of flames in the event of an accidental fire. The low-smoke, low-hazard formulation complies with public building safety regulations and is suitable for electrical distribution systems in densely populated areas and enclosed spaces.
- High-Rise and Commercial Building Projects
Main power lines for buildings, vertical power trunk lines, basement power distribution systems, and power circuits for central air conditioning in shopping malls and office buildings.
- Industrial Park and Factory Power Systems
General power supply trunk lines for workshops, fixed power cabling for heavy machinery and equipment, and stable power distribution lines within chemical, food, and electronics manufacturing plants.
- Municipal Public Infrastructure Construction
Urban power grid renovation and expansion, road traffic power supply, bridge and tunnel auxiliary power supply, and centralized power distribution for urban public facilities.
- Outdoor Buried and Remote Area Power Projects
Urban underground pipeline power transmission, suburban centralized power supply, fixed power transmission for on-site projects, and construction of stable power distribution networks in remote areas.
- Logistics and Large Public Places
Internal power layout for warehousing parks, and fixed trunk power cabling for large public places such as exhibition centers and stadiums.
5. Global Engineering Application Examples
A local municipal engineering contractor used YJLV22 3185+195mm² armored cable to upgrade the city's aging power grid. This cable boasts excellent buried compressive strength and high-temperature stability, operating stably even in tropical high-temperature and high-humidity environments, effectively reducing later circuit failure rates and shortening the overall project construction cycle.
The client selected flame-retardant YJLV22 series cables for the fixed power distribution trunk lines of a large manufacturing park. With its standard fire resistance and strong adaptability to sandstorm and windy environments, this product successfully passed local electrical safety inspections, meeting the long-term uninterrupted power supply needs of multiple production workshops.
A European residential community power supply project used our company's standard YJLV22 low-voltage armored cable. This cable has complete CE certification and standardized structural dimensions, fully complying with local building wiring standards, enabling rapid installation and providing a stable power supply to homes and public areas.
- Current Carrying Capacity Derating Calculation
Designers should calculate the actual available current carrying capacity based on laying temperature, burial depth, soil thermal resistance, and the number of multiple cable groups. Our team provides standard current carrying capacity tables and engineering matching calculation solutions free of charge.
- Standard Connection Specifications
Use matching copper core cable terminals and strictly tighten connection points according to international electrical torque standards to avoid the risk of localized overheating due to poor contact.
- Short Circuit Capacity Confirmation
Confirm the maximum short circuit current of the system in advance and verify the cable's high-temperature resistance to ensure that the insulation remains undamaged during transient circuit failures.
- Special Environment Model Upgrade
For coastal salt spray areas and areas with heavy chemical corrosion, select customized versions with enhanced anti-corrosion sheaths to improve long-term operational stability.
- Construction Operation Control
During laying, avoid violent dragging and scratching of the sheath. Strictly adhere to the specified minimum bending radius to avoid hidden damage to the internal insulation.
- Appropriate Fire Resistance Rating Selection
Select cables with appropriate flame-retardant ratings according to local building fire codes to ensure smooth project delivery and safe acceptance.
All YJLV22 series cables are manufactured using a standardized, end-to-end quality control system, encompassing raw material inspection, stranding, insulation extrusion, armor winding, and comprehensive electrical performance testing of finished products. We hold numerous mainstream global certifications, including ISO9001 quality management system certification, CE export certification, and RoHS environmental certification. We can provide complete material certificates, third-party testing reports, and factory inspection documents to meet project bidding qualification requirements and overseas customs clearance documentation.
- Direct sales from the manufacturer, boasting extensive experience in low-voltage cable manufacturing, a stable raw material supply chain, timely bulk delivery, and flexible export delivery cycles.
- A professional overseas technical team provides one-stop service, including model selection guidance, power distribution scheme optimization, parameter consultation, and remote construction technical support.
- Support for diversified and personalized customization: Sheath color, outer sheath material, internal structure, and safety level can be adjusted according to different national standards and project-specific requirements.
- 100% inspection of finished products before shipment, strictly controlling product quality consistency and eliminating defective products.
- Providing professional export packaging and complete customs clearance support documents, simplifying the cross-border procurement process for international purchases.
- Following global green engineering development trends, using environmentally friendly and recyclable raw materials, assisting customers in completing green engineering assessments and sustainable project layouts.
- Establishing a stable and long-term after-sales service mechanism, promptly responding to issues related to product application, accessories, and daily maintenance, and building long-term and stable partnerships.
