- Basic information:
- Name meaning: BV wire is abbreviated as plastic copper wire and its full name is copper core polyvinyl chloride insulated cloth wire. Among them, "B" represents the category as cloth wire, and "V" represents the insulation as polyvinyl chloride.
- Structural composition: It is mainly composed of a high-purity copper core and a polyvinyl chloride insulation layer. The copper core, as a conductor, is responsible for the transmission of electrical energy. The polyvinyl chloride insulation layer wraps non-conductive materials on the outside of the wire to improve the insulation performance of the wire and prevent electrical leakage and short circuits.
- Model specifications:
- Common models: Commonly used BV wire models include 0.75 square, 1 square, 1.5 square, 2.5 square, 4 square, 6 square, 10 square, 16 square, 25 square, 35 square, 50 square, 70 square, 95 square, 120 square, 150 square, 185 square, 240 square, etc. Generally, the model specifications are distinguished according to the cross-sectional area of the central metal conductor of the insulation layer.
- Conductor size: For example, the copper core cross-sectional diameter of 4 square BV wire is 2.25 millimeters. According to the circular area calculation formula, its approximate cross-sectional area can be calculated.
- Performance characteristics:
- Electrical performance:
- Good conductivity: Adopting high-purity electrolytic copper conductor, it has good conductivity and can efficiently transmit electrical energy, reducing the loss of electrical energy during transmission.
- Rated voltage adaptability: The rated voltage is usually 450/750V, suitable for power devices, household appliances, instruments and telecommunications equipment with an AC voltage of 450/750V and below. It can meet the power consumption needs of various scenarios such as households, commerce and industry.
- Physical properties:
- High mechanical strength: The single-core hard conductor structure gives it high mechanical strength and can withstand certain external forces such as tension, pressure and bending, and is not easily damaged. It has good stability during installation and use.
- Good resistance to acid, alkali and oil: The insulation layer material polyvinyl chloride has good resistance to acid, alkali and oil, and can resist the erosion of chemical substances to a certain extent, and is suitable for some special working environments.
- Moisture-proof and mildew-proof: The polyvinyl chloride insulation layer also has good moisture-proof and mildew-proof properties, which can ensure that the wire works normally in a humid environment and prolong the service life of the wire.
- Electrical performance:
- Applicable scenarios:
- Home decoration: It is a commonly used wire type for home wiring and can be used for lighting circuits, socket lines, dedicated lines for high-power electrical appliances such as air conditioners, etc. For example, in a 100-square-meter new house, different specifications of BV wires are usually required. For example, 4 square is used for high-power electrical appliances such as air conditioners, 2.5 square is used for ordinary sockets and lighting, and 1.5 square is used for some low-power electrical appliances or backup lines.
- Commercial and industrial fields: It is suitable for electrical wiring in commercial places such as shopping malls, office buildings, hotels, etc., and for the connection of power equipment and lighting systems in industrial plants and workshops.
- Telecommunications equipment connection: It can be used for power supply and signal transmission of telecommunications equipment and communication base stations, providing power support for the normal operation of communication equipment.
Our factory has been deeply engaged in the field of wire and cable production for many years. With outstanding strength and a good reputation, we bring you high-quality BV wire products.
First of all, our BV wire has a comprehensive certification system, which provides a solid guarantee for its quality. In the Chinese market, our products have mandatory 3C certification and strictly comply with relevant Chinese safety and quality standards to ensure legal sales and safe use in China. For the international market, our BV wire has obtained the widely recognized CE certification in Europe, which means that it complies with the relevant directives and standards of the European Union and can smoothly enter the European market. In addition, the German TUV certification further highlights the high quality of our products. As a globally renowned certification institution, the authority of German TUV is widely recognized. Obtaining this certification indicates that our BV wire has undergone strict testing and review in terms of quality and safety and can fully meet the requirements of Germany and other countries and regions that recognize TUV certification. At the same time, our BV wire also complies with a series of international standard certifications formulated by the International Electrotechnical Commission (IEC) and has reached the internationally quality and safety level, making it extremely competitive in the global market.
Secondly, for products with special performance requirements, we also have excellent performance. ZC-BV with flame retardant performance and NH-BV with fire-resistant performance have passed the corresponding flame retardant and fire-resistant performance tests and certifications. In the event of a fire, ZC-BV can effectively play a flame retardant role and reduce the spread and harm of the fire; NH-BV can maintain normal power transmission within a certain period of time, adding an extra layer of protection for your life and property safety.
In conclusion, choosing BV wire produced by our factory is choosing quality, safety and reliability. We look forward to working with you and providing you with the best quality wire and cable products and services.
Thank you for your attention and support!
The following are some common parameter ranges of BV wires, but the actual values may vary slightly due to factors such as implementation standards:
Conductor cross-sectional area (mm ²) | Insulation thickness (mm) | Aging performance (usually indicators) | Ductility (general performance) | Resistance (Ω/km, reference value at 20ºC) |
1.5 | 0.7 | Not prone to aging in the long term under normal working temperature. The insulation layer maintains good insulation performance. The aging temperature is generally above 70ºC | Relatively small. Due to the hard wire structure, it has certain flexibility without exceeding the elastic limit, but the degree of extension is limited. | ≤12.1 |
2.5 | 0.8 | Same aging performance characteristics as 1.5 square wires. | Similar to 1.5 square wires. The hard wire structure has general ductility. | ≤7.41 |
4 | 0.8 | The performance indicators such as aging temperature are similar to those of small-sized BV wires. However, due to the increase in wire diameter, the overall aging performance may be slightly different due to factors such as heat dissipation. | Hard wire structure. There is little change in ductility. | ≤4.61 |
6 | 0.8 | Can maintain stable insulation performance under normal use environment and temperature and is not prone to aging in the long term. | Relatively hard. Poor ductility. | ≤3.08 |
10 | 1.0 | Meet the aging requirements of wires for long-term use. The aging speed is slow under normal working temperature. | Hard wire. Insignificant ductility. | ≤1.83 |
16 | 1.0 | Has good anti-aging performance and can adapt to certain environmental changes. | Hard wire structure. Weak ductility. | ≤1.15 |
25 | 1.2 | Within the specified use conditions and period, the aging degree of the insulation layer is within an acceptable range. | Hard wire structure. Weak ductility. | ≤0.727 |
35 | 1.2 | Has good anti-aging ability and can ensure long-term stable operation. | Hard wire. Poor ductility. | ≤0.524 |
50 | 1.4 | Meets the aging performance standards of wires and cables. Aging problems are not obvious in normal use. | Hard wire structure. Limited ductility. | ≤0.387 |
70 | 1.4 | Can withstand the test of long-term use. The aging performance is good. | Hard wire. Not high ductility. | ≤0.268 |
95 | 1.6 | Has high anti-aging performance and can ensure the service life of wires. | Hard wire. Low ductility. | ≤0.193 |
120 | 1.6 | Meets the aging performance requirements for long-term use. The insulation layer is stable. | Hard wire. Low ductility. | ≤0.153 |
150 | 1.8 | The aging phenomenon is not obvious under normal use environment. | Hard wire. Low ductility. | ≤0.124 |
185 | 2.0 | Good anti-aging performance and can work stably for a long time. | Hard wire. Low ductility. | ≤0.0991 |
240 | 2.2 | Has reliable anti-aging ability and is suitable for long-term use. | Hard wire. Low ductility. | ≤0.0601 |
300 | 2.4 | Has good anti-aging performance and can ensure the normal operation of wires. | Hard wire. Almost negligible ductility. | |
400 | 2.8 | Can maintain good insulation performance and stability during long-term use. | Hard wire. Almost negligible ductility. | |
500 | 3.2 | Meets the aging and other performance requirements for long-term use. | Hard wire. Almost negligible ductility. | |
630 | 3.6 | Has good anti-aging and other performances and is suitable for large-scale power transmission. | Hard wire. Almost negligible ductility. |




