BV cable and BVVB cable differ significantly in structure, application scenarios, and performance characteristics.
Structure and Composition
BV cable: Copper-core PVC insulated cable. It consists of a single copper core conductor covered with PVC insulation. It comes in a variety of colors, with red, yellow, and green commonly used for the live wire, blue for the neutral wire, and two-color wire for the ground wire. BVVB cable: Copper-core PVC insulated, PVC sheathed flat cable. It consists of two or more BV conductors covered with a white PVC sheath. Its structural characteristic is that the insulated cores are not twisted but laid parallel and then sheathed, resulting in a flat appearance. Applications
BV cable: It is primarily used for power plants, household appliances, instruments, and telecommunications equipment operating at AC voltages of 450/750V and below. It is widely used in power distribution systems in high-rise buildings such as residential buildings, office buildings, hotels, hospitals, and shopping malls, as well as in lighting systems on highways, bridges, and tunnels. 1 BVVB Cable: Suitable for power transmission lines, control, lighting, and communication lines for mobile electrical equipment such as lifting equipment, trolleys, transmission machinery, elevators, cranes, tower cranes, and telescopic machinery in specialized locations. It can also be used for connecting and installing mobile mechanical components in enclosed indoor environments.
Performance Characteristics
BV Cable: Offers excellent insulation and weather resistance, along with excellent mechanical strength and abrasion resistance, capable of withstanding moderate mechanical stress and wear. Its simple structure makes it suitable for fixed installations. 12 BVVB Cable: Offers excellent conductivity and safety, along with good bending properties, making it suitable for mobile installations. Some specialized BVVB cable types are also waterproof and fire-resistant. The flat design of BVVB cable improves heat dissipation compared to round cable, especially with multi-core cables.
Installation Methods
BV Cable: Primarily used for fixed installations. While round cables with smaller cross-sections can also be used for mobile installations, BV cable is generally more suitable for long-term, stable power transmission environments. 3 BVVB Cable: Mainly used for mobile laying. Due to its flat structure, it can be bent back and forth more often than round cables, and has a longer service life.
