I. Core Information about the Product Itself
(1) Specification Parameters
Conductor Parameters
The conductor of the BV-1×1.5mm² 300/500V wire is made of high-purity electrolytic copper with a purity of ≥99.95%. This high purity ensures excellent electrical conductivity, which is crucial for minimizing power loss during transmission. The conductor features a single solid core structure, and the cross-sectional area is precisely controlled at 1.5mm², with a tolerance of ±0.05mm to meet strict industry standards. The diameter of the conductor is approximately 1.38mm, with an allowable error of only ±0.02mm, ensuring consistency in performance across different batches.
At a temperature of 20℃, the DC resistance of the conductor is ≤12.1Ω/km. This low resistance value is a key indicator of its efficient conductive performance, allowing for smooth and low-loss power transmission even over longer distances. The conductor undergoes an annealing process, which involves heating it to a specific temperature and then cooling it slowly. This treatment eliminates internal stresses within the copper, significantly improving its ductility and
Flexibility. As a result, the tensile strength of the conductor reaches ≥200MPa, and the elongation is ≥30%, enabling it to withstand slight stretching and bending during installation without breaking or cracking.
Insulation Parameters
The insulation layer is made of high-quality weather-resistant polyvinyl chloride (PVC) material. The thickness of the insulation layer is ≥0.7mm, with a tolerance of ±0.05mm, ensuring uniform coverage and reliable protection. This PVC material is specially formulated to have a wide temperature resistance range, from -15℃ to 70℃, making it suitable for use in various indoor environments such as homes, offices, and small commercial spaces. It can maintain stable insulation performance even in temperature fluctuations within this range.
The insulation resistance of the wire is ≥100MΩ at 20℃, which is a critical parameter for preventing leakage current and ensuring electrical safety. In addition, it can withstand a power frequency withstand voltage of 2kV for 5 minutes without breakdown, demonstrating its ability to reliably isolate current and prevent electrical hazards. The surface of the insulation layer is smooth and free from defects such as bubbles, pinholes, or cracks, which could compromise its insulation properties.
The mechanical strength of the insulation layer is also impressive, with a tensile strength of ≥12MPa and an elongation at break of ≥150%. These properties allow the insulation to resist daily friction, 挤压 (squeezing), and other mechanical stresses, ensuring long-term durability.
Safety and Physical Parameters
The rated voltage of the BV-1×1.5mm² wire is 300/500V, which makes it ideal for use in low-voltage systems such as civil and small industrial applications. The overall outer diameter of the wire is approximately 2.8mm, and the minimum bending radius is ≥4 times the outer diameter (i.e., ≥11.2mm). This small size and good flexibility enable it to be easily routed through narrow spaces such as wall pipelines, wire troughs, and ceiling cavities, facilitating convenient installation in various building structures.
The wire complies with the national standard GB/T 5023.3, which specifies the requirements for
PVC Insulated Cables and wires for electrical and electronic equipment. It has also passed the CCC (China Compulsory Certification), a mandatory certification system that ensures products meet specific safety and quality standards. In terms of combustion performance, it meets the flame retardancy requirements specified in GB/T 18380. Specifically, in the single vertical burning test, the self-extinguishing time is ≤30 seconds, which helps to prevent the spread of fire and enhance overall safety in case of a fire incident.
(2) Characteristic Applications
Home and Office Wiring
The BV-1×1.5mm² wire is a staple in home decoration wiring. It is widely used in lighting circuits, providing power to ceiling lights, wall sconces, and other lighting fixtures throughout the house. Its low resistance and reliable performance ensure stable lighting without flickering or voltage drops. Additionally, it is suitable for power supply lines of ordinary sockets in homes and offices, which are used to connect low-power appliances such as televisions, computers, printers, desk lamps, and fans.
In two-bedroom apartments or small-sized residences, this wire can serve as the main lighting line for the entire house, as well as the socket branch lines in bedrooms, living rooms, and kitchens. Its slender diameter allows for easy concealed installation, such as being buried in wall plaster layers, floor cushions, or 穿管 (threaded through pipes) and embedded in ceilings. This not only saves space but also maintains the aesthetic appearance of the interior decoration. The ease of installation makes it a preferred choice for both professional electricians and DIY enthusiasts.
Small Appliance Connection
This wire is commonly used for
Internal Wiring in the power cords of household appliances with a power rating of ≤1.5kW. Examples include water dispensers, microwave ovens, rice cookers, blenders, and toasters. Its stable insulation performance and appropriate current-carrying capacity ensure the safe and reliable operation of these appliances.
It can also be used as the power connection line for air conditioning units with a cooling capacity of ≤1.5 horsepower when used in conjunction with a suitable socket. The current-carrying capacity of the wire when laid in air is 19A, which is sufficient to handle the power requirements of such air conditioners, ensuring they function properly without overheating the wire.
Public Facilities and Small Projects
In public facilities such as office buildings, schools, and shopping malls, the BV-1×1.5mm² wire finds various applications. It is used as emergency lighting branch lines, ensuring that emergency lights remain operational during power outages, providing essential illumination for evacuation and safety. It also serves as auxiliary
Power Lines from weak current boxes to information points, such as powering routers, switches, and network equipment, which are crucial for maintaining communication and internet connectivity.
Furthermore, it is suitable for power supply lines of small monitoring equipment, access control systems, and other low-power electrical devices in these public spaces. Its moderate cost and high versatility make it a practical choice for temporary electrical installations, such as in temporarily built prefabricated houses, exhibition booths, and construction site offices. It can be quickly and easily installed to meet short-term power needs, and its reliable performance ensures the smooth operation of temporary electrical systems.
(3) Material Styles
Conductor Material
The conductor is made of high-purity electrolytic copper, which undergoes a rigorous refining process to remove impurities such as iron, lead, and zinc. This high level of purity is essential for achieving excellent electrical conductivity, as impurities can increase resistance and reduce the efficiency of power transmission. The electrolytic copper has a bright, shiny surface and is free from oxidation, ensuring good electrical contact and long-term performance.
The single solid core structure of the conductor provides simplicity in installation and connection. Unlike
Stranded Conductors, which consist of multiple small wires twisted together, the solid core is less prone to tangling and is easier to terminate with wire connectors or terminals. This makes the wire more convenient to work with, especially in tight spaces.
Insulation Material
The insulation layer is composed of polyvinyl chloride (PVC), a synthetic polymer that offers a combination of good insulation properties, mechanical strength, and affordability. The PVC used in this wire is a specially formulated weather-resistant grade, which contains additives to enhance its resistance to aging, temperature variations, and UV radiation (though it is primarily intended for indoor use).
The insulation layer is typically color-coded for easy identification. Common colors include red, blue, yellow, green, and black, which help electricians distinguish between different circuits (such as live, neutral, and
Ground Wires) during installation, reducing the risk of wiring errors. The surface of the insulation is smooth, which not only improves its appearance but also makes it easier to pull through conduits and other tight spaces during installation.
Overall Style
The overall design of the BV-1×1.5mm² wire is simple and compact. The single solid
Copper Conductor is completely encapsulated by the
PVC Insulation layer, forming a cylindrical shape. This streamlined design allows for efficient use of space in wiring systems, as multiple wires can be installed in close proximity without excessive bulk.
The wire is supplied in rolls, with a typical length of 100 meters per roll, which is convenient for handling and installation. The rolls are designed to be easy to unwind, reducing the likelihood of kinks or tangles during use. The clear marking on the insulation surface, including specifications (such as "BV 1.5mm² 300/500V"), production batch numbers, and meter marks, provides important information for users, facilitating quick identification, proper selection, and accurate cutting during installation.
(4) Production Process
Conductor Drawing and Annealing
The production process begins with high-quality copper rods, which are made from electrolytic copper. These copper rods are fed into a wire drawing machine, where they are pulled through a series of dies with progressively smaller apertures. This process reduces the diameter of the copper rod to the required size (1.38mm for the 1.5mm² conductor). During drawing, a lubricant is applied to reduce friction between the copper and the dies, preventing overheating and ensuring a smooth surface finish.
After drawing, the
Copper Wire undergoes an annealing process. It is heated in a controlled atmosphere (often using nitrogen to prevent oxidation) to a temperature of around 400-500℃, then slowly cooled. Annealing relieves the internal stresses generated during drawing, improves the ductility and flexibility of the copper wire, and ensures consistent electrical and mechanical properties.
Insulation Extrusion
The next step is the extrusion of the PVC insulation layer. The annealed copper wire is fed into an extrusion machine, where the PVC material (in the form of pellets) is heated and melted. The molten PVC is then forced through a die that surrounds the copper wire, forming a continuous layer of insulation around it.
The extrusion process is carefully controlled to ensure the insulation layer has uniform thickness, a smooth surface, and proper adhesion to the conductor. Parameters such as temperature (typically around 160-190℃), extrusion speed, and pressure are monitored and adjusted to achieve the desired quality. After extrusion, the wire passes through a cooling water bath to solidify the PVC insulation, ensuring it retains its shape and properties.
Printing and Spooling
Once the insulation layer is cooled and solidified, the wire undergoes a printing process. A specialized printing machine applies clear and durable markings on the surface of the insulation, including the product specification, rated voltage, production batch number, and meter marks. These markings are essential for identification, quality control, and installation.
The printed wire is then spooled onto reels or coils of standard lengths (usually 100 meters). The spooling process is done with care to ensure the wire is neatly wound without kinks or overlaps, which could cause damage during transportation, storage, or installation. The reels are often made of cardboard or plastic, providing protection and ease of handling.
Quality Inspection
Throughout the production process, rigorous quality inspections are conducted to ensure the wire meets the required standards. This includes checking the diameter and roundness of the conductor, the thickness and uniformity of the insulation layer, and the surface quality of both the conductor and insulation. Electrical tests are also performed, such as measuring the DC resistance of the conductor and the insulation resistance, as well as conducting withstand voltage tests.
In addition, samples from each batch are subjected to mechanical tests, including tensile strength and elongation tests of both the conductor and insulation. Combustion tests are carried out to verify the flame retardancy performance. Only wires that pass all these tests are allowed to leave the factory, ensuring consistent quality and reliability.
II. General Product Information
(1) Packaging
The BV-1×1.5mm² wire is typically packaged in reels or coils. The most common packaging is a 100-meter length wound onto a cardboard or plastic reel. The reel is designed to protect the wire during transportation and storage, preventing damage to the insulation and ensuring the wire remains neatly wound.
The reel is usually labeled with detailed product information, including the product name (BV-1×1.5mm² 300/500V copper core PVC
Insulated Wire), the manufacturer's name and logo, the production date, batch number, CCC certification mark, and specifications. This information helps users quickly identify and verify the product.
For larger quantities, the reels may be packed into cartons. Each carton can contain multiple reels, depending on the size and weight. The cartons are made of sturdy cardboard to provide additional protection during shipping, and they are also labeled with the same product information as the reels for easy identification and inventory management.
In some cases, for retail or small-quantity sales, the wire may be packaged in smaller coils (such as 10-meter or 20-meter lengths) in plastic bags. These bags are sealed to prevent dust and moisture from entering, and they also have labels with basic product information.
(2) Transportation
The transportation of BV-1×1.5mm² wires requires careful handling to ensure the product remains in good condition. During transportation, the reels or cartons should be stored in a dry, well-ventilated area, protected from direct sunlight, rain, snow, and extreme temperatures. Exposure to moisture can damage the insulation, while extreme heat or cold can affect the mechanical properties of the materials.
When loading and unloading, mechanical equipment such as forklifts or cranes may be used for larger quantities, but care must be taken to avoid dropping or impacting the reels, which could cause the wire to become tangled or the insulation to be damaged. For smaller packages, manual handling is possible, but workers should also be cautious to prevent damage.
The wires can be transported by various means, including road, rail, or sea, depending on the distance and destination. For domestic transportation within a country, road transport is commonly used, with trucks equipped with appropriate loading facilities. For longer distances or international shipments, rail or sea transport may be more economical. During transit, the cargo should be secured to prevent movement and shifting, which could lead to damage.
(3) Delivery
The delivery process of the BV-1×1.5mm² wire typically starts with the customer placing an order. The manufacturer or supplier will then process the order, checking the availability of the product. If the wire is in stock, it can be prepared for shipment immediately. For large or customized orders, production may need to be scheduled, and the delivery time will depend on the production cycle.
Once the product is ready, the supplier will arrange for transportation as per the customer's requirements. The customer will be notified of the shipment details, including the expected delivery date, the mode of transport, and the tracking information (if available). This allows the customer to prepare for receipt and arrange for any necessary unloading equipment or personnel.
Upon delivery, the customer should inspect the packaging for any signs of damage. If the packaging is intact, the wire can be accepted and stored properly. If there is damage to the packaging or the product, it should be noted and reported to the supplier immediately for further handling, such as replacement or repair.
(4) Samples
Manufacturers or suppliers of BV-1×1.5mm² wires often provide samples to customers for testing and evaluation. Samples are typically small lengths of the wire, usually 1-5 meters, which allow customers to check the quality, dimensions, and performance of the product before placing a large order.
Customers can request samples through various channels, such as the supplier's website, email, or phone. In most cases, the samples themselves are provided free of charge, but the customer may be responsible for the shipping costs. The supplier will arrange for the samples to be shipped promptly, usually via express delivery services to ensure quick arrival.
The samples are packaged in small, protective containers or envelopes to prevent damage during transit. They may also include a product data sheet or specification sheet, providing detailed information about the wire's parameters and performance, to assist the customer in their evaluation.
(5) After-Sales Service
The after-sales service for BV-1×1.5mm² wires is an important aspect of ensuring customer satisfaction. Manufacturers and suppliers typically offer a warranty period for their products, which may range from 1 to 5 years, depending on the brand and specific terms. During this period, if the wire is found to have manufacturing defects (such as insulation failure, conductor oxidation, or non-compliance with specifications), the supplier will provide a replacement or refund, depending on the situation.
In addition to warranty coverage, after-sales service may include technical support. Customers can contact the supplier's technical team for assistance with installation, wiring design, or troubleshooting. The technical team can provide advice on proper usage, compatibility with other electrical components, and solutions to any problems that may arise during installation or use.
If customers have any complaints or feedback about the product or service, they can contact the supplier's customer service department. The customer service team will respond promptly, investigate the issue, and work to resolve it to the customer's satisfaction. This may involve arranging for product inspections, providing replacements, or offering other forms of compensation as appropriate.
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