RV flexible copper cable is a type of power transmission wire designed specifically for scenarios requiring frequent movement and bending. Its cross-sectional size ranges from 1.5mm² to 6mm², with a rated voltage of 450/750V, and it is widely used in electrical systems with various flexible connection needs. The core advantage of this cable lies in its "flexible" characteristic, which stems from its unique conductor structure design—it is made of multiple strands of extremely fine copper wires twisted together. The diameter of a single copper wire is usually less than 0.2mm, and through a precision twisting process, it achieves excellent bending performance. The minimum bending radius can be as low as 4 times the outer diameter of the cable, which is far superior to ordinary fixed-laying cables. It can maintain stable conductive performance in environments with repeated bending and twisting, greatly reducing the risk of wire breakage caused by mechanical stress.​ In terms of specification parameters, the cross-sectional range from 1.5mm² to 6mm² precisely matches the power demand of small and medium-sized mobile devices. The 1.5mm² cable is often used for internal wiring of household appliances (such as internal wiring of vacuum cleaners and microwave ovens) and power leads of small electric tools; the 2.5mm² cable is suitable for connection lines of office equipment (such as printers and projectors) and temporary wiring of stage lighting equipment; the 4mm² to 6mm² cables can meet the flexible connection of small industrial robots, automated production lines, and lead-out lines of mobile distribution boxes and other scenarios. There are significant differences in current-carrying capacity among different cross-sections. At an ambient temperature of 30℃, the current-carrying capacity of 1.5mm² cable is approximately 12-18A, 2.5mm² is about 18-25A, 4mm² is around 25-35A, and 6mm² is roughly 35-45A. In actual use, adjustments need to be made according to the equipment power and laying environment (such as whether it is conduit installation or ambient temperature) to ensure safe operation.​ The insulation layer of the cable is made of high-elastic polyvinyl chloride (PVC) material. Compared with ordinary PVC, it contains a higher content of plasticizers, endowing the insulation layer with excellent flexibility and aging resistance. The thickness of the insulation layer is strictly controlled between 0.5-1.0mm (increasing with the increase of cross-section), which can not only withstand the rated voltage of 450/750V but also pass the 1500V voltage resistance test (no breakdown for 1 minute), with an insulation resistance of ≥100MΩ·km, effectively ensuring electrical safety. In addition, this PVC material has good oil resistance and chemical corrosion resistance, and can be used in environments with oil stains and slight corrosive gases. Its flame retardant grade reaches UL94 V-0 standard, which can self-extinguish quickly when exposed to open fire, reducing the risk of fire spread.​ In terms of applicable scenarios, the "flexible + durable" characteristics of RV flexible copper cable make it an ideal choice for mobile devices. In household scenarios, it can be used as a power extension cord for mobile home appliances such as floor-sweeping robots and massage chairs; in commercial scenarios, it is suitable for temporary power supply lines in exhibitions and quick connections of stage lighting; in industrial scenarios, it is often used for wiring of moving joints of automated equipment and power transmission of assembly line robotic arms. Compared with ordinary fixed-laying cables, its advantage is that after 10,000 repeated bendings (bending angle 90°, frequency 1 time/second), the conductor breakage rate is less than 0.1%, and the insulation layer has no cracking, which can meet the long-term dynamic use needs.​ In the production process, the cable adopts an integrated process of "fine wire drawing - layered twisting - continuous extrusion". The precision of copper wire drawing is controlled within ±0.002mm to ensure uniform diameter of each copper wire; during twisting, the "concentric layering" process is adopted, and the twisting direction of the outer copper wires is opposite to that of the inner layer to offset stress and improve flexibility; the insulation layer extrusion uses special flexible PVC particles, and the thickness deviation within 0.05mm is achieved through precision molds, with no bubbles or wrinkles between the insulation layer and the conductor, ensuring structural stability. Each batch of products undergoes 20 indicators testing such as conductor resistance, insulation thickness, and bending resistance, complying with GB/T 5023.5-2008 "Polyvinyl chloride insulated cables with rated voltage up to 450/750V - Part 5: Flexible cables (flexible wires)".​ To sum up, RV flexible copper cable 1.5-6mm² - 450/750V, with its excellent flexibility, reliable insulation performance, and wide specification coverage, has become a core transmission component in mobile electrical equipment and dynamic connection scenarios, providing safe and stable power support for various electrical equipment that need frequent movement.