High Quality BVR copper flexible wire is a multi-strand stranded cable designed specifically for building electrical systems. With a rated voltage of 450/750V and a PVC insulation layer, it becomes an ideal choice for complex wiring scenarios due to its excellent flexibility and reliability. Its core consists of multi-strand high-purity electrolytic copper conductors (purity ≥99.95%), manufactured through a fine stranding process, with cross-sectional areas ranging from 0.75mm² to 25mm², suitable for a wide range of needs from low-voltage equipment to medium and high-power circuits. The multi-strand stranded structure of the conductor endows the cable with excellent flexibility, with a minimum bending radius of only 6 times the outer diameter of the cable. It can easily cope with frequent bending in narrow spaces such as ceilings, pipe bends, and equipment interiors, and has excellent fatigue resistance, able to withstand tens of thousands of bends without breaking easily. The conductivity is ≥58MS/m, ensuring efficient current transmission. The current-carrying capacity of different specifications ranges from 10A (0.75mm²) to 100A (25mm²) (at 30℃ ambient temperature), which can meet the power supply needs of LED lamps, sensors, socket circuits, air conditioners, and building main lines respectively. The thickness of the PVC insulation layer increases from 0.6mm to 1.6mm according to specifications, with an insulation resistance of ≥100MΩ, which can withstand a 2kV power frequency withstand voltage test, effectively isolating current. The insulation material complies with UL94 V-0 flame retardant standards, self-extinguishing within 30 seconds after the open flame is removed, with an operating temperature range of -15℃ to 70℃. It is also RoHS certified, free of lead, cadmium, and other harmful substances, balancing safety and environmental protection. The surface of the cable is printed with clear marks, including specifications, voltage level, certification marks (such as IEC 60228, GB 5023), and production information, facilitating construction identification and quality traceability. Various colors (brown, blue, yellow-green, etc.) can distinguish phase lines, neutral lines, and ground lines, reducing the risk of wiring errors. It is a high-quality solution with flexibility, safety, and durability in building electrical wiring.