BV Bvr 100m Single Core 2X1.5mm 4mm 1.5mm 2.5 mm Cable Electrical Wires Copper Wire for House Building 2.5mm Single Core（English Part）​ These BV and Bvr single core copper electrical wires, available in 1.5mm, 2.5mm, 4mm, and 2X1.5mm specifications with 100m lengths, are essential for house building, offering reliable power distribution in residential electrical systems. BV wires feature a solid copper conductor, ideal for fixed installations like wall wiring and permanent connections, providing stability and low resistance for consistent current flow. Bvr wires, with their stranded copper core, offer enhanced flexibility, making them suitable for areas requiring bending or frequent adjustments, such as junction boxes and movable fixtures.​ The range of sizes caters to diverse household needs: 1.5mm wires handle lighting circuits and small appliances; 2.5mm (including the 2.5mm single core variant) is perfect for general power outlets and medium-load devices like refrigerators; 4mm and 2X1.5mm wires accommodate higher loads, such as air conditioners and heavy-duty equipment. Crafted from high-purity copper, they ensure efficient conductivity with minimal energy loss, while their insulation (typically PVC) resists moisture, heat, and abrasion, ensuring durability in indoor and protected outdoor settings.​ Compliant with industry standards, these 100m wires simplify installation, reducing splices and ensuring continuous power transmission. Trusted by builders and electricians, they balance performance, safety, and practicality, making them a top choice for residential wiring projects.