The 3 Core Solid Copper Cable 1.5mm² (BV Wire 3*1.5) is a low-voltage power distribution cable specially designed for lighting systems and socket circuits. With three 1.5mm² high-purity solid copper conductors as the core, matched with a flame-retardant PVC insulation layer and in a 100m roll form, it combines efficient conductivity, safety protection, and convenient construction characteristics. It is accurately suitable for low-power power distribution needs in residences, commercial spaces, and small industrial areas. The 3-core integrated design can carry live wires, neutral wires, and ground wires at the same time, eliminating the need to lay multiple separate cables, which greatly simplifies the wiring process of lighting and socket circuits and reduces the number of wall conduits and construction costs. Relying on the mechanical strength of the solid copper conductor and the flame-retardant, temperature-resistant performance of the PVC insulation, this cable can operate stably in various indoor environments for a long time, effectively preventing safety hazards such as short circuits and electric leakage, making it an ideal choice for lighting installation, socket wiring, and small household appliance power supply.​ In terms of specification parameters, the "3×1.5mm²" structural design accurately matches low-power power distribution needs: the three independent solid copper conductors all have a cross-sectional area of 1.5mm², and the rated current-carrying capacity of a single conductor reaches 10A-16A, which fully meets the current needs of lighting systems (such as LED lights, ceiling lights) and ordinary sockets (suitable for low-power equipment such as mobile phone chargers, desk lamps, and small humidifiers). The 3-core parallel design integrates live wires, neutral wires, and ground wires, complying with the requirement of "independent grounding for circuits" in electrical safety specifications, and can be directly used for integrated wiring of lighting and sockets, avoiding pipeline congestion or wiring confusion caused by separate wiring. The overall rated voltage of the cable is 450/750V, among which 450V is the normal working voltage, suitable for the 220V single-phase power supply network of households; 750V is the insulation withstand voltage value, which can resist electrical stress caused by voltage fluctuations, prevent insulation layer breakdown, and ensure electricity safety. In addition, the 100m roll specification is suitable for the wiring dosage of most scenarios: for residential lighting circuits, it can cover the whole-house lighting wiring of two-bedroom and three-bedroom houses; for commercial spaces (such as small offices and convenience stores), it can meet the laying needs of multiple socket circuits. At the same time, the feature of cutting according to needs reduces cable splicing and the risk of joint faults, and the roll design also facilitates storage and unwinding operations during construction.​ In terms of material and structural design, the cable uses high-purity solid copper with a purity of ≥99.95% as the conductor core. Solid copper material has three core advantages: First, it has excellent electrical conductivity with a resistivity of only about 1.72×10⁻⁸Ω·m, resulting in little energy loss during current transmission. It can reduce electricity waste in long-term use, and its low heat generation characteristic avoids accelerating insulation aging due to conductor overheating. Second, it has high mechanical strength, which is not easy to deform during fixed installation such as pipe threading and wall embedding, and can maintain a stable wiring shape. It makes closer contact with lighting switches and socket terminals, reducing contact resistance and preventing safety accidents caused by local overheating. Third, it has strong corrosion resistance, and its surface is not easy to oxidize, so it can be used for a long time in humid environments such as kitchens and bathrooms, extending the service life of the cable. The insulation layer is made of flame-retardant PVC material, which has passed the national flame-retardant standard certification and can self-extinguish when exposed to fire, avoiding the spread of flames; at the same time, it has good temperature resistance (-30°C to 70°C), adapting to temperature changes in different areas (such as cold balconies in winter and stuffy ceilings in summer); electrical insulation can effectively isolate the current conduction between conductors and between conductors and the outside world, preventing short circuits or electric leakage. The insulation layer of each conductor also uses standardized color identification: usually, the live wire is red, the neutral wire is blue, and the ground wire is green/yellow two-color, which complies with international electrical specifications, facilitating installers to quickly identify and reduce wiring errors, improving construction efficiency and safety.​ In terms of application scenarios, relying on low-power adaptability and 3-core integration advantages, this cable is widely used in lighting and socket circuits: In residential scenarios, it can be used as the main wiring for lighting in living rooms, bedrooms, and kitchens. The three cores correspond to live wires, neutral wires, and ground wires respectively, ensuring safe grounding of the lighting system; at the same time, it can be used for ordinary socket circuits to supply power to low-power equipment such as mobile phone chargers, laptops, and small household appliances, especially suitable for areas with high socket density such as bedrooms and studies. In commercial scenarios, it is suitable for lighting and work station socket wiring in small offices, shelf lighting and cash register socket circuits in convenience stores, and power supply lines for display light boxes in chain stores. Its flame-retardant characteristics and stable performance meet the safety specifications of commercial spaces. In industrial auxiliary scenarios, it can be used as workshop lighting circuits and socket wiring for small equipment in control rooms. The solid copper conductor can cope with slight vibrations in industrial environments, ensuring stable operation of the lines. In addition, this cable is also suitable for old house renovation projects. The 3-core design can directly replace old single-core cables, reducing the number of wall grooves, minimizing damage to the original decoration, and shortening the renovation period.​ In terms of construction and safety characteristics, the solid copper conductor of the cable is easy to strip and wire, and can be connected to switches and sockets without special tools, improving construction efficiency; the 3-core parallel arrangement structure is not easy to entangle when threading through conduits, and can easily pass through common specifications of PVC pipes such as 16mm and 20mm, reducing the resistance of threading; the surface of the insulation layer is smooth, with little friction with the inner wall of the conduit, avoiding damage to the insulation layer during construction. In terms of safety, in addition to flame retardancy and insulation performance, the cable also passes strict quality inspections, including conductor resistance test, insulation withstand voltage test, flame retardant performance test, etc., to ensure compliance with GB (national standards) and relevant international standards. During use, problems such as insulation cracking and conductor breakage are not easy to occur, providing long-term and reliable protection for lighting and socket circuits.