This is a flexible copper power cable available in 4-core 120mm² and 5-core 185mm² configurations, featuring XLPE insulation and PVC sheath with rated voltage 600/1000V. The high-purity copper conductor ensures excellent flexibility and bending resistance, making it ideal for applications requiring frequent movement or complex routing. Compliant with international electrical standards, the cable has a temperature rating of 90℃ and is widely used in industrial equipment, building distribution, and temporary power systems.

The U-1000 RVFV XAV insulated PVC jacket armored power cable features copper/aluminum conductors, specifically designed for underground installation. With PVC insulation and armored protection, it delivers superior mechanical strength and electrical insulation, suitable for fixed wiring applications up to 1000V. The armor layer resists external stress, while the PVC outer sheath ensures weather and corrosion resistance, making it ideal for construction, industrial, and municipal power distribution systems.

Self-supporting insulated wires, including models SIP-5ng (4X50, 4X35), SIP-1, Sipn-1, SIP-2, Sipn-2, SIP-4, Sipn-4, SIP-5, Asxs, and Asxsn, are engineered for efficient overhead power distribution. These wires integrate structural support and electrical conduction into a single unit, eliminating the need for separate messenger cables and simplifying installation.​ SIP-5ng, available in 4X50 and 4X35 configurations, stands out with its robust design, combining high current-carrying capacity with self-supporting strength—ideal for medium to heavy-duty applications. Models like SIP-1, Sipn-1, SIP-2, and Sipn-2 cater to lighter loads, offering flexibility for residential and small commercial networks. SIP-4, Sipn-4, and SIP-5 balance performance and durability, suitable for urban and suburban grids.​ Asxs and Asxsn variants focus on specialized environments, providing enhanced insulation for areas with high moisture or chemical exposure. All models feature insulated conductors (typically XLPE or PVC) that prevent short circuits and reduce energy loss, while their self-supporting structure ensures stability over spans up to 50 meters, resisting wind and temperature fluctuations.​ Compliant with international standards, these wires meet SEO keywords like "self-supporting insulated cable," "overhead power wire," and "efficient power distribution," making them a top choice for utility companies, contractors, and infrastructure projects seeking reliable, cost-effective solutions.

The A2xfy, 2xfy, A2xwy, 2xwy series of cross-linked polyethylene (XLPE) insulated polyvinyl chloride (PVC) jacket underground copper core power cables and wires are high-efficiency solutions specially designed for underground power transmission scenarios. Their core structure adopts high-purity copper conductors, which have excellent electrical conductivity, can reduce energy loss during transmission, and ensure efficient power delivery.​ The insulation layer is made of cross-linked polyethylene material, which after special processing, has excellent temperature resistance, chemical corrosion resistance and electrical insulation strength. It can maintain stable performance in complex underground environments (such as changes in soil pH, microbial erosion, etc.), effectively resisting the impact of moisture penetration and mechanical extrusion. The outer polyvinyl chloride sheath further strengthens the cable's protective ability, with good anti-aging, wear resistance and moisture resistance, which can adapt to the harsh conditions of long-term underground burial and extend the service life of the cable.​ This series of cables is suitable for underground power transmission and distribution systems, municipal engineering, underground wiring in industrial plants and other scenarios, and can meet the power transmission needs of different power levels. Its design complies with industry standards for underground cable laying, taking into account safety and reliability, and can provide a solid guarantee for the stable operation of underground power networks, reducing later maintenance costs.

Zr-BV-1×25mm² 450/750V copper core PVC insulated wire and Zc-YJV cable are two types of high-performance electrical wiring products, widely used in power transmission and distribution in construction, industrial and other fields. With reliable electrical performance, good mechanical strength and specific flame-retardant characteristics, they have become important components to ensure the safe and stable operation of electrical systems.​ I. Zr-BV-1×25mm² 450/750V Copper Core PVC Insulated Wire​ Core Specifications and Performance​ The conductor is made of high-purity electrolytic copper, with a single-core structure and a precise cross-sectional area of 25mm². The DC resistance of the conductor at 20℃ is ≤0.727Ω/km, with excellent conductivity, enabling efficient power transmission.​ The insulation layer is made of polyvinyl chloride (PVC) material, with a thickness of ≥1.2mm and a temperature resistance range of -15℃ to 70℃, which can maintain stable insulation performance in normal use environments. The insulation resistance is ≥100MΩ (20℃), and it can withstand a power frequency voltage of 3kV for 5min without breakdown, ensuring electrical safety.​ It has ZR (flame-retardant) characteristics and passes the GB/T 18380 flame-retardant test, which can inhibit the spread of combustion under the action of flame and reduce fire hazards. The overall outer diameter of the wire is about 8.5mm, and the bending radius is ≥4 times the outer diameter, which is convenient for laying and installation in narrow spaces.​ Characteristic Applications​ Construction electrical field: Suitable for lighting and power distribution trunk lines in high-rise buildings and commercial complexes, which can be laid openly or concealed in walls and floors, adapting to the power needs of residences, office buildings and other places.​ Industrial auxiliary lines: As power connection lines for small and medium-sized motors, machine tools and other equipment in factory workshops, it can withstand certain mechanical vibrations and ensure stable power supply for equipment.​ Public facilities: Used for emergency lighting lines and ordinary socket circuits in hospitals, schools and other places. The flame-retardant feature adds safety guarantee for places with dense people.​ II. Zc-YJV Cable​ Core Specifications and Performance​ The conductor is made of multi-strand copper wires stranded, with common cross-sectional areas covering various specifications from 4mm² to 240mm², meeting different power transmission needs. The DC resistance of the conductor at 20℃ complies with GB/T 3956 standard, ensuring low-loss power transmission.​ The insulation layer is made of cross-linked polyethylene (XLPE), with a temperature resistance range of -40℃ to 90℃, excellent insulation performance, low dielectric loss, suitable for higher voltage level scenarios. The sheath is made of polyvinyl chloride (PVC), with good weather resistance and corrosion resistance, and flame retardants are added to meet ZC (Class C flame retardant) requirements, releasing less smoke and low toxicity during combustion.​ The rated voltage is 0.6/1kV, which can withstand a power frequency voltage of 10kV for 5min without breakdown. The short-circuit withstand temperature is 250℃ (5s), with high mechanical strength, tensile strength ≥12MPa, and elongation at break ≥125%.​ Characteristic Applications​ Building trunk lines: In large shopping malls, hotels and other buildings, as the trunk cable from the distribution room to the distribution boxes on each floor, it can be buried, piped or laid along the bridge, adapting to complex wiring environments.​ Industrial power distribution: Used for the connection between factory transformer and distribution rooms and workshop main distribution boxes, it can carry large load currents and resist the influence of oil, dust, etc. in industrial environments.​ Municipal engineering: In municipal projects such as urban road lighting and underground pipe corridors, as the main line for power transmission, it has good corrosion resistance to buried ground and a long service life.​ III. Common Advantages and Material Technology​ In terms of materials, both conductors are made of high-purity copper to ensure conduction efficiency; insulation and sheath materials are strictly selected, meeting environmental protection requirements and containing no harmful substances such as heavy metals.​ In terms of technology, Zr-BV wires adopt wire drawing, insulation extrusion and other processes to ensure uniform and tight insulation layers; Zc-YJV cables go through multiple processes such as conductor stranding, cross-linked insulation extrusion, cabling, and sheath extrusion, with firm bonding of each layer and stable performance.​ Both have passed the national mandatory product certification (CCC), with reliable quality, convenient installation and maintenance, and are ideal choices with both safety and economy in electrical engineering.

The BV-1×1.5mm² 300/500V copper core PVC insulated wire is a basic wire product widely used in building electrical systems, home wiring, and power supply for small electrical appliances. With high-purity copper as the conductor core and polyvinyl chloride (PVC) insulation layer, it combines excellent conductivity, stable insulation effect, and convenient installation characteristics, making it an ideal choice for power transmission in low-voltage scenarios.​ I. Core Specifications and Performance Parameters​ Conductor Characteristics​ It uses electrolytic copper with a purity of ≥99.95% as the conductor, featuring a single solid core structure with a precisely controlled cross-sectional area of 1.5mm². The conductor diameter is approximately 1.38mm (with an allowable error of ±0.02mm). At 20℃, the DC resistance is ≤12.1Ω/km, ensuring high conduction efficiency and effectively reducing transmission losses. After annealing, the conductor has a tensile strength of ≥200MPa and an elongation of ≥30%, which can withstand slight stretching and bending during wiring without breaking.​ Insulation Performance​ The insulation layer is made of weather-resistant PVC material with a thickness of ≥0.7mm (error ±0.05mm) and a temperature resistance range of -15℃ to 70℃, which can maintain stable insulation in conventional environments such as homes and offices for a long time. The insulation resistance is ≥100MΩ (at 20℃), and it can withstand a power frequency voltage of 2kV for 5 minutes without breakdown, reliably isolating current and preventing leakage risks. The surface of the insulation layer is smooth, free of defects such as bubbles and pinholes, with excellent mechanical strength, tensile strength ≥12MPa, and elongation at break ≥150%, which can resist daily friction and extrusion.​ Safety and Physical Parameters​ The rated voltage is 300/500V, suitable for civil and small industrial low-voltage systems. The overall outer diameter is about 2.8mm, and the bending radius is ≥4 times the outer diameter (i.e., ≥11.2mm), which can flexibly pass through narrow spaces such as wall pipelines and trunking. The wire complies with GB/T 5023.3 standards, has passed CCC mandatory certification, and its combustion performance meets the flame retardancy requirements specified in GB/T 18380 (the self-extinguishing time of a single vertical burning test is ≤30 seconds), enhancing usage safety.​ II. Characteristic Applications and Scene Adaptation​ Home and Office Wiring​ It is the main wire for home decoration, suitable for lighting circuits and power supply lines of ordinary sockets (such as low-power appliances like TVs, computers, and desk lamps). In two-bedroom apartments or small-sized residences, it can be used as the main lighting line for the entire house and the socket branch lines in bedrooms and living rooms. Due to its slender diameter, it can be concealed in wall plaster layers, floor cushions, or buried in ceilings through pipes, occupying little space and being convenient for construction.​ Small Appliance Connection​ It is used for internal wiring of power cords of household appliances with power ≤1.5kW, such as water dispensers, microwave ovens, and rice cookers. It can also be used as the power connection line for air conditioners (≤1.5 horsepower) (used with sockets). Its stable insulation performance and current-carrying capacity (19A when laid in air) can meet the long-term safe operation requirements of such appliances.​ Public Facilities and Small Projects​ In office buildings, schools, shopping malls, and other places, it can be used as emergency lighting branch lines, auxiliary power lines from weak current boxes to information points (such as power supply for routers and switches), or power supply lines for small monitoring equipment and access control systems. Due to its moderate cost and strong versatility, it is also commonly used in short-term electricity scenarios such as temporarily built prefabricated houses and exhibition booths.​ III. Material Technology and Advantages​ Material Advantages: High-purity electrolytic copper conductors ensure low resistance and high conductivity; the PVC insulation layer does not contain heavy metals or harmful plasticizers, meeting RoHS environmental protection requirements, and produces low smoke during combustion, reducing toxicity risks.​ Production Process: The conductor undergoes continuous wire drawing and annealing integration treatment to ensure dimensional accuracy and flexibility; the insulation layer is formed by extrusion, where high-temperature molten PVC material uniformly coats the conductor, forming a tightly bonded insulation layer after cooling to avoid interlayer peeling.​ Practical Features: The surface of the wire is printed with clear specification marks (such as "BV 1.5mm² 300/500V"), production batch numbers, and meter marks, facilitating quick identification and cutting during construction. The length of each roll is usually 100 meters, with compact packaging, suitable for home and small projects to take as needed.​ As a mature low-voltage wire, it balances performance, cost, and safety, and is an indispensable basic electrical component in civil and light industrial fields, which can be flexibly used according to load requirements and wiring environments.

Insulated 50mm 70mm 145mm Aluminum Copper Wire for Building Construction and Industrial Product Abstract​ Versatile Wires for Construction and Industrial Needs​ The insulated 50mm, 70mm, and 145mm aluminum copper wires are engineered to meet the rigorous demands of building construction and industrial applications. Combining the strengths of aluminum and copper, these wires deliver a blend of conductivity, durability, and cost-effectiveness, making them ideal for diverse electrical systems.​ Dual-Material Advantages​ These wires leverage the best of both metals: copper ensures superior electrical conductivity, critical for high-power industrial machinery and precision construction electrical systems, while aluminum offers lightweight properties and cost efficiency, suitable for large-scale building wiring where weight reduction is key. The combination allows for optimal performance across varying load requirements, from moderate construction circuits to heavy-duty industrial equipment.​ Robust Insulation & Design​ Equipped with high-quality insulation, the wires resist heat, moisture, abrasion, and chemical exposure—common challenges in construction sites and industrial environments. This insulation ensures long-term reliability, preventing electrical leakage and safeguarding against environmental damage. The wires’ structural design, often featuring stranded conductors, enhances flexibility, simplifying installation in complex building layouts, tight spaces, or around industrial machinery.​ Applications Across Sectors​ The 50mm and 70mm wires are well-suited for building construction, powering lighting, HVAC systems, and general electrical circuits in commercial and residential buildings. The 145mm wire, with its higher capacity, caters to industrial needs, such as powering heavy machinery, manufacturing lines, and industrial electrical panels. Together, they provide a comprehensive solution for safe, efficient electrical distribution in both construction and industrial settings.

The H07V-U 1.5mm² single core solid copper PVC insulated wire is a stable and widely used electrical cable with a rated voltage of 450/750V. It is specially designed to meet the power transmission needs of medium and low-power electrical equipment and performs excellently in various electrical installation scenarios.​ In terms of structure, the wire adopts a single core solid design, and the conductor is made of high-purity copper. High-purity copper has excellent conductivity, which can effectively reduce energy loss during current transmission and ensure efficient power delivery. The solid conductor structure endows the wire with good mechanical strength, making it not easy to deform due to external pulling or extrusion in a fixed wiring environment, ensuring the continuous smoothness of the circuit and prolonging its service life.​ The insulation layer is made of high-quality PVC (polyvinyl chloride) material, providing multiple reliable protections for the wire. PVC material has excellent insulation performance, which can reliably isolate the conductor from the outside world, effectively prevent electric leakage accidents, and ensure electrical safety. At the same time, it has certain wear resistance and acid-alkali corrosion resistance, and can adapt to various complex environments. It can work stably whether in dry indoor walls, humid basements, or industrial auxiliary areas with slight chemical substances. In addition, the PVC insulation layer also has good flexibility, which is convenient for bending and threading during wiring, reducing construction difficulty and improving installation efficiency.​ In terms of specification parameters, the 1.5mm² wire diameter gives it an excellent current-carrying capacity. When laid in air, the current-carrying capacity is about 19A; when laid in a pipe (three wires), the current-carrying capacity is about 14A, which is sufficient to support the normal operation of various medium and low-power equipment. The maximum DC resistance of the conductor at 20℃ does not exceed 12.1Ω/km, which further ensures the stability of its conductive performance. The operating temperature range of the wire is from -15℃ to 70℃. Within this range, all performances can remain stable, and there will be no problems such as insulation aging and conductor performance degradation due to temperature fluctuations.​ It has a wide range of applicable scenarios. In home decoration, it is often used in lighting circuits in bedrooms, living rooms, studies and other areas, connecting chandeliers, ceiling lamps, wall lamps and other lighting equipment to ensure stable lighting. At the same time, it is also suitable for connecting small household appliances such as TVs, set-top boxes, routers and desk lamps, providing continuous and stable power support for these devices. In small commercial places, such as convenience stores and offices, it can be used for power supply of shelf lighting, cash register equipment, and office equipment such as computers and printers. In addition, it can also meet the power connection needs of small equipment such as control instruments in industrial auxiliary areas such as factory control rooms and small workshops.​ This wire also has the characteristics of convenient installation. Its surface is smooth, and it is compatible with wire tubes and trunking, so it can be easily embedded in various wiring channels. Moreover, the PVC insulation layer has various colors, commonly including red, blue, black, etc., which is convenient for distinguishing different circuit loops (such as live wire and neutral wire) and reducing wiring errors during construction.​ In conclusion, relying on reasonable structural design, high-quality material selection and stable performance, the H07V-U 1.5mm² single core solid copper PVC insulated wire has become an ideal choice for power transmission of medium and low-power electrical equipment, providing reliable guarantee for the safe and efficient operation of various electrical systems.

TF Wire Twisted Wire 1.25mm² 1.6mm² 2.0mm² Copper PVC Insulated Wire Summary​ TF Wire’s twisted copper PVC insulated wires, available in 1.25mm², 1.6mm², and 2.0mm², are precision-engineered for reliable signal and power transmission in residential, commercial, and light industrial applications. The twisted pair design minimizes electromagnetic interference (EMI) and crosstalk, ensuring stable performance in audio-visual setups, security systems, and low-voltage control circuits.​ Crafted with high-purity copper conductors, these wires deliver excellent conductivity, reducing signal loss and ensuring efficient power delivery. The PVC insulation provides robust protection against moisture, abrasion, and temperature fluctuations (-15°C to 70°C), making them suitable for both indoor and enclosed outdoor installations—such as wall cavities, conduit runs, or underfloor wiring.​ Each size caters to specific load and space requirements: 1.25mm² for small-scale devices like doorbells and sensors; 1.6mm² for medium-duty applications such as intercoms and lighting controls; 2.0mm² for higher-current devices like smart home hubs and security cameras. Compliant with industry standards, the wires feature flexible construction for easy routing in tight spaces, while their twisted configuration enhances durability against repeated bending.​ Ideal for modern connectivity needs, these wires balance performance and versatility, making them a trusted choice for seamless signal and power management in diverse electrical systems.

TF Wire Twisted Wire 1.25mm² 1.6mm² 2.0mm² Copper PVC Insulated Wire Summary​ TF Wire’s twisted copper PVC insulated wires, available in 1.25mm², 1.6mm², and 2.0mm², are high-performance solutions for signal and power transmission in residential, commercial, and light industrial settings. The twisted pair design is engineered to minimize electromagnetic interference (EMI) and crosstalk, ensuring stable data and power flow—critical for audio-visual systems, security networks, and smart home controls.​ Constructed with 99.9% high-purity copper conductors, these wires deliver exceptional conductivity, reducing signal loss and energy waste. The PVC insulation provides robust protection against moisture, abrasion, and temperature extremes (-15°C to 70°C), making them suitable for indoor, enclosed outdoor, and tight-space installations like wall cavities or conduit runs.​ Sizing aligns with specific needs: 1.25mm² for low-power devices (doorbells, sensors); 1.6mm² for medium applications (intercoms, lighting controls); 2.0mm² for higher-current equipment (security cameras, smart hubs). Compliant with international standards, they feature flame-retardant PVC and flexible construction for easy routing, balancing durability with versatility. Ideal for modern connected systems, these wires ensure reliable performance in EMI-prone environments.

Summary of Flexible 1.5mm² 2.5mm² 4mm² Copper PVC Insulated Single-Core Wire (IEC Insulation, Building Use, 100m Rolls, Min. 100m Order)​ The Flexible 1.5mm², 2.5mm², 4mm² Copper PVC Insulated Single-Core Wire—compliant with IEC insulation standards, supplied in 100m sold rolls with a minimum 100m order—stands as a reliable, user-friendly electrical solution tailored for building projects. Crafted with high-purity copper conductors, this single-core wire delivers excellent electrical conductivity, ensuring stable current transmission for essential building electrical systems, from lighting circuits and power outlets to small-appliance wiring.​ Its flexibility is a key advantage: the wire’s design allows easy bending and routing through tight spaces in buildings, such as wall cavities, ceiling gaps, or narrow conduits, simplifying installation for electricians and reducing labor time. The PVC insulation, meeting strict IEC standards, provides robust protection—resisting moisture, abrasion, and moderate heat, which safeguards the copper conductor from external damage in building environments (e.g., damp basements, dusty construction sites) and prevents electrical leaks or short circuits, enhancing overall safety.​ Available in three practical cross-sectional areas (1.5mm², 2.5mm², 4mm²), the wire caters to diverse building electrical needs. The 1.5mm² variant is ideal for low-load circuits like residential lighting and small sockets; 2.5mm² suits medium-load applications such as bedroom/bathroom power outlets; 4mm² handles higher loads, including kitchen appliance circuits or small HVAC connections in commercial buildings.​ Supplied in 100m sold rolls with a minimum 100m order, it aligns with the bulk material demands of building projects—whether for large-scale residential complexes, commercial offices, or renovation works—ensuring consistent supply and reducing packaging waste. Compliant with IEC insulation standards, it meets global safety and performance benchmarks, giving contractors and project managers confidence in its reliability for long-term building electrical use.​ In summary, this flexible single-core copper PVC insulated wire combines conductivity, flexibility, IEC-certified safety, and practical packaging. It is an ideal choice for building electrical installations, meeting diverse load needs while simplifying installation and ensuring compliance with international standards.

The 4mm² single core copper cable with PVC insulation focused on in this abstract is a standardized electrical wire specifically designed for low-voltage power distribution scenarios in houses and buildings. Equipped with a rated voltage of 450/750V, high-purity copper conductor, and flame-retardant PVC insulation, it has obtained dual international certifications (CE and RoHS). It is widely suitable for medium-power electrical circuits such as residential kitchen sockets, electric water heaters, and wall-mounted air conditioners, as well as small equipment power supply systems in commercial buildings. Relying on the advantages of safety compliance, stable current-carrying capacity, and easy installation, it has become a preferred product for home improvement electricians, building contractors, and electrical project procurement, providing a reliable medium-power power transmission solution for house and building electrical systems. In terms of voltage rating and certification compliance, the rated voltage of 450/750V accurately matches the common electricity demand in house and building scenarios: "450V" refers to the insulation voltage between the conductor and the ground or neutral wire, and "750V" is the insulation voltage between two conductors. It can not only stably carry 220V single-phase (such as kitchen sockets, electric water heaters) and 380V three-phase (such as small commercial air conditioners) power supplies, but also reserves a 20%-30% safety margin to cope with voltage fluctuations during peak electricity usage (e.g., multiple air conditioners running simultaneously in summer), avoiding the risk of insulation breakdown. More importantly, the cable has passed CE certification (complying with the EU Low Voltage Directive 2014/35/EU), which means its electrical safety, mechanical performance, electromagnetic compatibility and other indicators all meet the European market access standards, and it can be directly used in building projects exported to Europe; at the same time, it meets the requirements of RoHS certification, with the content of six hazardous substances such as lead, cadmium, and mercury in the insulation layer and conductor accessories lower than the limit value, no heavy metal pollution, suitable for scenarios with high environmental protection requirements such as residential bedrooms, children's rooms, and office spaces in commercial buildings, ensuring indoor air quality and human health. In the core design of the conductor and insulation layer, the cable conductor is made of high-purity electrolytic copper (purity ≥99.95%), which has significant performance advantages compared to copper-clad aluminum or recycled copper conductors: Firstly, it has extremely low resistivity (≤0.017241Ω·mm²/m at 20℃), resulting in low current transmission loss, and is not easy to cause insulation aging due to heating during long-term use, which is especially suitable for equipment such as electric water heaters that run 24 hours a day in houses and buildings; Secondly, the conductor adopts a single-core solid or multi-strand stranded structure (selectable according to installation needs). The solid structure has strong rigidity, suitable for scenarios such as in-wall piping and fixed laying, and is not easy to shift due to vibration; the multi-strand stranded structure has better flexibility, which can be repeatedly bent at a bending radius of 5× the cable outer diameter, facilitating installation environments that require direction changes such as ceiling wiring and equipment terminals, reducing the probability of construction damage. Tests show that the long-term allowable current-carrying capacity of this 4mm² copper conductor is about 32A (20℃ environment, single-core laying), which can stably support medium-power equipment below 7.0kW (such as 80L electric water heaters and 1.5-ton wall-mounted air conditioners), avoiding conductor overheating or insulation softening caused by overload. The insulation layer is made of modified flame-retardant PVC (polyvinyl chloride) material, with optimized performance for house and building environment characteristics: Firstly, the flame-retardant grade meets the GB/T 18380.1-2008 Class C standard, with an oxygen index ≥24%. It can self-extinguish within 60 seconds in the vertical combustion test, and there are no molten drips, which can effectively prevent flames from spreading along the cable, reducing the risk of electrical fires in flammable areas such as kitchens and equipment rooms; Secondly, it has excellent electrical insulation performance, with a volume resistivity ≥1×10¹²Ω·cm and a dielectric loss tangent ≤0.08 at 50Hz. Even in the humid and oily environment of the kitchen, it can isolate the conductor from the external environment, avoiding electric leakage accidents; Thirdly, the temperature resistance performance is stable, with a long-term operating temperature of 70℃, and short-term overload can withstand 160℃ (for 5 seconds), which can cope with local high temperatures during electric water heater heating and temperature changes such as equipment heat dissipation in summer, and is not prone to insulation cracking or hardening; In addition, the surface of the PVC insulation layer is smooth, with low friction during piping, which can improve construction efficiency. At the same time, it has good chemical corrosion resistance, which can resist erosion from common cleaning agents, coatings in houses and weak acid-base substances in commercial buildings, extending the service life of the cable to more than 20 years. In terms of product positioning and scenario adaptability, this 4mm² single-core cable takes "exclusive for medium-power circuits" as its core positioning, and its detailed design meets practical needs: Firstly, the color identification is standardized, with red/yellow/green for live wires, blue for neutral wires, and yellow-green for ground wires, complying with international wiring standards. Electricians can quickly identify the purpose of wiring, reducing the probability of wrong connection (such as avoiding equipment burnout caused by confusing live wires and neutral wires); Secondly, it has strong specification adaptability. The 4mm² cross-sectional area is between 2.5mm² (low power) and 6mm² (high power), which exactly fills the wiring gap of medium-power equipment, and there is no need to choose a thicker 6mm² cable to adapt to 3-7kW equipment, resulting in cost waste; Thirdly, it has wide compatibility, and can be seamlessly adapted to common electrical accessories such as copper terminal blocks, PVC/metal conduits, and residual current devices. It can be integrated into the existing house and building electrical systems without additional modification, reducing the complexity of project construction. In addition, the product production process strictly follows international quality control standards. Each batch of cables undergoes multiple tests: conductor resistance test (to ensure the resistivity meets the standard), insulation thickness test (standard thickness 0.8mm, tolerance ±0.1mm), voltage resistance test (1.5kV/1min no breakdown), and flame-retardant performance test (vertical combustion self-extinguishing) to ensure stable and consistent performance. Whether it is the wiring of medium-power equipment circuits in the kitchen and bathroom during new house decoration, the replacement of old 2.5mm² cables to adapt to new home appliances during old house circuit transformation, or the equipment power supply in convenience stores and small offices in commercial buildings, this 4mm² single-core copper conductor PVC insulated cable can rely on its safety compliance, stable current-carrying capacity, environmental protection and durability to become a reliable power transmission carrier. Overall, this 4mm² single core copper cable with PVC insulation (450/750V CE & RoHS Certified) perfectly meets the medium-power electricity demand in houses and buildings through accurate voltage adaptation, authoritative international certification, high-quality material combination, and scenario-based design. It can not only ensure the safe and stable operation of medium-power equipment, but also meet the compliance requirements of domestic and foreign building projects, while taking into account environmental protection and durability, laying a solid electrical foundation for the comfortable life of houses and the efficient operation of buildings, and is an ideal choice in the field of medium-power building wiring.