This article covers two types of double steel tape armored flexible cables: Rvfv-K and Rvfav-K, with a conductor cross-sectional specification of 240mm² and flame-retardant properties.​ The 240mm² conductor cross-section endows the cable with a strong current-carrying capacity, usually reaching 400-500A, which can meet the power transmission needs of large industrial equipment and high-load power distribution systems. The flexible design makes the cable easier to bend during laying, especially suitable for narrow spaces that require turning, such as internal wiring of equipment and underground pipeline threading. The double steel tape armor layer significantly improves the mechanical strength of the cable, which can resist external extrusion, collision and other impacts, and protect the internal core from damage.​ Flame-retardant property is an important advantage of this type of cable. When in contact with fire sources, it can inhibit the spread of combustion and reduce the release of toxic smoke, buying time for personnel evacuation and fire fighting. Therefore, it is suitable for places with high fire safety requirements such as high-rise buildings, subways and power stations.​ There may be differences in structural details between Rvfv-K and Rvfav-K models, such as fine adjustments to insulation or sheath materials, but both take "double steel tape armor + flexibility + flame retardancy" as the core design, balancing transmission capacity, protection performance and installation flexibility.

Vav Armored Cable and Steel Tap Armored Cable are two types of armored cables with excellent performance. With outstanding stability and durability, they are widely used in various fields such as power transmission, construction engineering, and industrial manufacturing.​ In terms of specifications and parameters, both offer rich options to adapt to different scenarios. Vav Armored Cable has a cross-sectional area ranging from 0.5-240mm² and a rated voltage from 0.6/1kV to 10kV; Steel Tap Armored Cable has a cross-sectional area between 1.5-400mm² and a rated voltage of 0.6/1kV to 35kV, which can meet the diversified needs from low-voltage distribution to medium-voltage transmission. In terms of characteristic applications, Vav Armored Cable, due to its combination of flexibility and protection, is suitable for places with high requirements for cable protection such as equipment connection in industrial workshops and vertical wiring in high-rise buildings, and can resist mechanical collision, vibration and erosion from humid environments; Steel Tap Armored Cable, with its strong armored structure, performs well in scenarios such as underground direct burial, tunnel projects, and outdoor overhead installation, and can withstand large external pressures such as soil pressure and vehicle rolling.​ In terms of materials, the conductors of both cables are mostly made of 99.9% high-purity electrolytic copper or high-conductivity aluminum to ensure low resistance and excellent conductivity; the insulation layer is made of cross-linked polyethylene (XLPE) or polyvinyl chloride (PVC) resistant to temperatures from -40℃ to 105℃, which has both aging resistance and insulation reliability; the armor layer is hot-dip galvanized steel strip or wire, which after special processing, significantly improves the cable's impact resistance, corrosion resistance and mechanical strength. The production process is exquisite. From the precise size control of conductor drawing, to the uniform coating of the insulation layer extrusion, and then to the tight winding of the armor layer, each process is completed by automated equipment and undergoes multiple tests such as withstand voltage and insulation resistance to ensure stable product quality.​ In terms of general information, the packaging adopts a combination of moisture-proof kraft paper and galvanized iron 盘，with a wrapping film on the outer layer, which can effectively prevent the cable from getting damp and worn during storage and transportation; the transportation method is flexible, supporting whole-vehicle land transportation, container sea transportation and less-than-truckload distribution, and the plan is optimized according to the order quantity and destination; samples can be provided free of charge according to the customer's specified specifications (within 10 meters), with test reports for convenient testing; the after-sales system is perfect, providing a 2-year warranty service, and the professional technical team responds to fault consultations within 72 hours, supporting on-site installation guidance and problem troubleshooting.

This article introduces two aluminum armored cables of the Hge brand, with models 3150+170 and 3120+170, both belonging to low-voltage power transmission cables, suitable for fixed laying scenarios in industrial, construction, energy and other fields. Both cables use aluminum as the conductor material, which has good electrical conductivity and lightweight characteristics, effectively reducing laying costs and difficulties. The armored layer design enhances the mechanical strength of the cables, enabling them to resist impact and rolling, while improving corrosion and moisture resistance, making them adaptable to complex environments such as underground direct burial, tunnels, and cable trays. The model 3150+170 consists of 3 phase wires with a cross-sectional area of 150mm² and 1 neutral wire of 70mm². It has a large current-carrying capacity and is suitable for power supply of medium and high-power equipment, such as large motors and industrial production lines. The 3120+170 includes 3 phase wires of 120mm² and 1 neutral wire of 70mm², with a slightly lower current-carrying capacity, more suitable for medium-power scenarios, such as building power distribution systems and power supply for small and medium-sized machinery. Both cables comply with relevant electrical safety standards. The insulation layer is made of temperature-resistant and anti-aging materials to ensure long-term stable operation. Their structural design balances safety and economy, providing reliable solutions for power transmission with different power requirements.

2xsey and 2xseyry cables are two types of high-performance medium-voltage power armored cables, widely applicable to power transmission scenarios with voltage levels of 3.6/6kv and 6/10kv. Their design fully takes into account the complexity and harshness of medium-voltage power transmission environments, achieving an efficient integration in structure and performance.​ In terms of structure, both cables adopt a multi-layer composite design. The conductor part is made of high-purity electrolytic copper, ensuring low loss and stability in current transmission, which can effectively meet the current-carrying requirements in medium-voltage circuits. The insulation layer is made of high-quality cross-linked polyethylene (XLPE) material, which has excellent electrical insulation performance, aging resistance and thermal stability. It can maintain good insulation effect during long-term use, reducing the risk of short circuit and leakage. As a key protective structure, the armor layer usually adopts steel tape or steel wire armoring, which not only significantly improves the mechanical strength of the cable, enabling it to resist external pressure, tension and impact, but also enhances the corrosion resistance of the cable, prolonging its service life. It is especially suitable for environments vulnerable to mechanical external forces such as underground direct burial and pipeline laying.​ In terms of performance, 2xsey and 2xseyry cables have excellent temperature resistance, and can work stably in the environment of -40℃ to 90℃, adapting to the climate conditions of different regions. At the same time, their good flame retardancy and chemical corrosion resistance enable them to operate safely in special environments such as industrial factories and chemical parks. In addition, the cable has good bending performance, which is convenient for laying and installation during construction, improving project efficiency.​ With reliable performance and wide applicability, these two cables are widely used in urban power grid transformation, industrial park power distribution, power transmission of new energy projects (such as wind power and photovoltaic), providing a solid guarantee for the stable operation of medium-voltage power systems.

The 5X10mm² and 5X16mm² copper core XLPE/Fr-PVC/Swa/Fr-PVC armored power cables are medium and low voltage distribution cables with complex structures and excellent performance, widely used in fixed laying scenarios in industrial, construction, energy and other fields. Their multi-layer composite structure design endows them with multiple advantages such as efficient conductivity, temperature resistance, fire resistance, and mechanical protection, making them ideal for power transmission in harsh environments.​ In terms of structure, the cable adopts a 5-core copper conductor design, with single-core cross-sectional areas of 10mm² and 16mm² respectively. The conductors are stranded from high-purity electrolytic copper with a purity of over 99.95%, ensuring low resistance and high conductivity. The DC resistance of the 10mm² cable conductor is ≤1.83Ω/km (at 20℃), and that of the 16mm² is ≤1.15Ω/km, which is much lower than industry standards, effectively reducing transmission losses. The outer layer of the conductor is sequentially coated with an XLPE (cross-linked polyethylene) insulation layer. After high-temperature cross-linking treatment, this material forms a three-dimensional network structure with a temperature resistance rating of 90℃ and an insulation resistance of ≥1000MΩ·km. The insulation thickness is 1.4mm (10mm²) and 1.6mm (16mm²) respectively, which can withstand a 12kV/5min voltage test without breakdown, and its insulation performance is far superior to ordinary PVC materials.​ Outside the insulation layer is a Fr-PVC (flame-retardant polyvinyl chloride) inner sheath with an oxygen index of ≥32. When exposed to fire, it forms a carbonized layer to block the spread of flames, complying with the GB/T 18380 flame retardant standard. The middle layer is Swa (steel wire armor), which uses galvanized low-carbon steel wires with a diameter of 1.6-2.0mm, wrapped in a spiral winding manner. The armor density is ≥80%, enabling the cable to resist mechanical impact, pressure, and rodent/ant bites. The armor layer of the 16mm² cable has a tensile strength of over 15kN, which can withstand soil pressure during underground laying. The outermost layer is a Fr-PVC outer sheath with a thickness of ≥2.0mm, which has acid and alkali resistance, UV aging resistance, and also meets flame retardant requirements, forming a double fire barrier.​ In terms of performance parameters, both cables have a rated voltage of 0.6/1kV, meeting the GB/T 12706.1 standard. The long-term operating temperature range is -40℃ to 90℃, and it can withstand high temperatures of 250℃ during short circuits (within 5s). The current-carrying capacity of the 5X10mm² cable is 65-85A (when laid in air) and 55-70A (when laid underground); the 5X16mm² is 85-110A and 70-90A, adapting to power distribution systems of different powers. The bending radius is 12 times the cable outer diameter (static) and 20 times (dynamic), facilitating laying construction in narrow spaces.​ Its characteristic applications cover multiple fields: in industrial plants, as power cables connecting high and low voltage distribution cabinets to large equipment (such as 100kW motors), the armor layer can resist vibration and impact during equipment operation; in the strong electric wells of high-rise buildings, the flame-retardant 特性 reduce fire hazards, suitable for emergency power circuits; in new energy photovoltaic power stations, the performance of withstanding -40℃ low temperature ensures stable power supply in winter; in underground pipe gallery projects, the double sheath and armor layer resist groundwater corrosion and mechanical damage. Compared with ordinary non-armored cables, its service life is extended by more than 30%, and the whole life cycle cost is lower.​ In market applications, the cable has passed CCC, CE and other certifications, and can be customized in length (up to 1000 meters per reel). When purchasing, it should be noted that: due to the increased usage of conductors and armor materials, the unit price of 16mm² cables is about 30%-40% higher than that of 10mm²; bulk purchases (over 500 meters) can enjoy an 8%-12% discount; choosing products with a 10-year warranty, although the initial cost increases by 5%, can avoid later maintenance risks and has better overall cost performance.

The N2XRY armored cable is a high-performance power cable designed for complex energy transmission scenarios, whose structural design and material selection fully meet the stringent requirements for safety, durability, and efficiency in industrial, municipal, and energy sectors. The designation "N2XRY" directly reflects its core composition and performance characteristics, where "N" denotes fire resistance, "2" indicates suitability for higher temperature environments, "X" refers to cross-linked polyethylene (XLPE) insulation, "R" corresponds to polyvinyl chloride (PVC) sheathing, and "Y" implies the flexibility and adaptability of its overall structure. Structurally, the N2XRY cable features a multi-layer composite design. The core conductor is made of high-purity copper (CU), which exhibits excellent electrical conductivity, effectively reducing energy loss during transmission and ensuring efficient power delivery. The conductor is wrapped in a cross-linked polyethylene (XLPE) insulation layer, a material known for its high voltage resistance, aging resistance, and temperature tolerance. It can operate stably in environments ranging from -40°C to 90°C, significantly enhancing the cable's insulation reliability and preventing safety hazards such as short circuits and leakage. To further enhance the cable's mechanical protection, a steel wire armor (SWA) structure is applied over the XLPE insulation. The steel wire armor, either spirally wound or longitudinally wrapped, provides robust resistance to impact, extrusion, and stretching. This allows the cable to withstand external pressures from underground laying, burial projects, or vibrations from industrial equipment, while also effectively resisting gnawing by rodents, thereby extending the cable's service life. Externally, the armor layer is covered with a polyvinyl chloride (PVC) outer sheath. PVC not only offers excellent corrosion resistance, protecting against chemicals, moisture, and ultraviolet radiation in the soil, but also provides a degree of flame retardancy, complying with fire safety standards. It is particularly suitable for industrial environments with humidity, dust, or flammable risks. The N2XRY cable finds extensive applications, including urban power grid transformation, industrial park distribution systems, power transmission in high-rise buildings, and grid-connection lines of new energy power stations (e.g., photovoltaic and wind power). In these scenarios, the cable must cope with complex environmental conditions and high-load power transmission demands. With its multi-layer protective structure and high-performance material combination, N2XRY stably ensures continuous power supply and reduces maintenance costs. Moreover, the cable is designed for easy installation. The flexibility of the steel armor allows for easy bending and laying, reducing construction difficulties. Additionally, its standardized specifications (with cross-sectional areas ranging from 10mm² to 400mm²) can meet transmission needs of different power levels, adapting to various wiring equipment. In summary, the N2XRY armored cable achieves a comprehensive balance of conductivity, insulation safety, mechanical protection, and environmental adaptability through the scientific combination of copper conductors, XLPE insulation, steel armor, and PVC sheathing. It is an ideal choice in modern energy transmission, offering both reliability and cost-effectiveness

The wholesale armored cable designed for direct burial emerges as a robust and versatile solution for outdoor, garden, and residential power supply needs, combining durability, conductivity, and protection to thrive in challenging environments. At its core, this cable features a stranded copper conductor, encased in multiple protective layers—including an armor shield and a PVC sheath—making it uniquely suited for direct burial applications where exposure to soil, moisture, physical impact, and environmental stressors is inevitable. The stranded copper conductor is a key component that sets this cable apart, offering distinct advantages over solid core alternatives. Composed of multiple thin copper strands twisted together, it provides enhanced flexibility, allowing for easy maneuvering around rocks, roots, and other obstacles during installation in gardens or outdoor spaces. This flexibility also reduces the risk of conductor damage when the cable is bent or routed through tight spaces, a common requirement in residential outdoor wiring (e.g., connecting garden sheds, pool pumps, or outdoor lighting). Copper, renowned for its high electrical conductivity (approximately 580 S/m), ensures efficient power transmission with minimal energy loss, making the cable suitable for both low-voltage (e.g., 120V) and medium-voltage (e.g., 480V) applications in residential and light commercial settings. Additionally, the stranded design improves current-carrying capacity compared to solid conductors of the same cross-sectional area, as the increased surface area reduces skin effect losses at higher frequencies, ensuring stable performance even when powering multiple devices simultaneously. Beneath the outer layers, the conductor is insulated with a PVC (polyvinyl chloride) layer, which serves as the first line of defense against electrical leakage and short circuits. This insulation boasts a high dielectric strength (typically 15 kV/mm) and is formulated to resist moisture, chemicals, and temperature fluctuations—critical properties for direct burial, where the cable may come into contact with damp soil, fertilizers, or pesticides commonly used in gardens. The insulation is also flame-retardant, adhering to standards such as IEC 60332-1-2, which minimizes fire risks in case of accidental damage or overload, a vital safety feature for residential areas. Surrounding the insulated conductor is a metal armor shield, usually made of galvanized steel or aluminum, which provides exceptional mechanical protection. This armor is designed to withstand the rigors of direct burial, including pressure from soil compaction, impacts from shovels or heavy equipment during landscaping, and gnawing from rodents. Unlike unarmored cables, which require additional conduit for burial, this armored variant can be directly laid in trenches without extra protection, reducing installation time and costs—an attractive feature for wholesale buyers and contractors managing large-scale projects. The armor also acts as a barrier against electromagnetic interference (EMI), preventing external signals from disrupting power transmission and ensuring stable operation of sensitive equipment like smart garden sensors or outdoor entertainment systems. The outermost layer is a tough PVC sheath, which encapsulates the armor and provides an additional layer of protection against environmental factors. This sheath is UV-resistant, preventing degradation from prolonged exposure to sunlight—essential for above-ground segments of the cable (e.g., where it exits the ground to connect to outdoor outlets or fixtures). It also resists oil, grease, and most industrial chemicals, making the cable suitable for use near driveways, garages, or workshops where such substances may be present. The PVC sheath’s smooth surface simplifies installation, allowing the cable to glide through soil with minimal friction, while its flexibility ensures it can conform to uneven terrain without cracking. This armored cable is available in a range of cross-sectional sizes (e.g., 2.5mm² to 16mm²), catering to diverse power requirements. Smaller sizes (2.5mm²–4mm²) are ideal for garden lighting, sprinkler systems, or small outdoor appliances, while larger sizes (6mm²–16mm²) can handle higher currents, making them suitable for powering pool pumps, air conditioning units, or main supply lines to detached garages or guest houses. Its voltage rating (typically 0.6/1 kV) covers most residential and light commercial needs, ensuring compatibility with standard electrical systems. Compliance with industry standards is a hallmark of this cable, with certifications from organizations such as the International Electrotechnical Commission (IEC), Underwriters Laboratories (UL), and national bodies (e.g., GB 50217 in China). These certifications guarantee that the cable meets strict criteria for conductor purity, insulation thickness, armor strength, and flame resistance, providing wholesale buyers and end-users with confidence in its reliability. The cable also operates within a wide temperature range (-20°C to +70°C), ensuring performance in harsh winters, scorching summers, and everything in between—critical for outdoor use in diverse climates. Installation of this armored cable is streamlined by its design. For direct burial, a trench (typically 600mm deep for residential areas) is dug, and the cable is laid with minimal tension to avoid straining the armor or conductors. The stranded copper core simplifies termination, as the flexible strands can be easily connected to terminals, switches, or junction boxes using standard tools. Unlike solid core cables, which may require special connectors, the stranded design ensures secure, low-resistance connections, reducing the risk of overheating. For wholesale applications, the cable is often supplied in large reels (e.g., 100m–500m), allowing contractors to cut custom lengths for each project, minimizing waste and optimizing inventory management. In terms of longevity, the cable is engineered to last 25 years or more under normal operating conditions. The galvanized armor resists corrosion, while the PVC layers are resistant to degradation from environmental stressors. Regular inspections (e.g., checking for damage to the sheath or armor after landscaping) can further extend its lifespan, ensuring reliable power supply for decades—a key selling point for wholesale customers seeking cost-effective, long-term solutions. In summary, the wholesale armored cable for direct burial, with its stranded copper conductor, PVC insulation, metal armor, and PVC sheath, is a premium choice for garden, outdoor, and house power supply needs. Its combination of flexibility, durability, and safety features makes it suitable for direct burial without additional protection, while its range of sizes and compliance with standards ensures versatility across applications. For wholesale buyers, contractors, and homeowners alike, this cable offers a reliable, cost-effective solution for delivering power to outdoor spaces, combining ease of installation with long-term performance.