The 1.5mm² 450/750V PVC insulated copper cable is an electrical connection product that complies with the International Electrotechnical Commission standard (IEC 60227). With its stable performance and wide applicability, it occupies an important position in various low-voltage electrical systems.​ In terms of specification parameters, the conductor cross-sectional area of this cable is 1.5mm², which gives it a moderate current-carrying capacity. It can carry a current of 10-16 amperes in conventional environments, meeting the power supply needs of most low-power electrical equipment. Its rated voltage is 450/750V, meaning that in an AC system, the rated voltage between conductors is 450V, and the rated voltage between conductors and the ground is 750V, making it safely applicable to low-voltage distribution networks. The conductor is made of high-purity electrolytic copper, usually in the form of multi-strand stranding, which not only improves the flexibility of the cable, facilitating bending and laying, but also enhances its fatigue resistance, effectively coping with mechanical stress during installation and use. The outer insulation layer is made of polyvinyl chloride (PVC) material, with a uniform insulation thickness, generally between 0.6-0.8mm, ensuring good electrical insulation performance and effectively preventing short circuits and leakage accidents.​ In terms of performance characteristics, the PVC insulation layer endows the cable with multiple advantages. It has excellent chemical corrosion resistance, able to resist the erosion of common chemical substances such as acids, alkalis, and oils, extending the service life of the cable. At the same time, PVC material has certain wear resistance and flame retardancy, not easily damaged by friction in daily use, and can slow down the burning speed in case of fire, buying time for personnel evacuation and fire fighting. In addition, the cable has a wide operating temperature range, usually able to operate stably in an environment of -15℃ to 70℃, adapting to the climate conditions of different regions and seasons. Compliance with IEC 60227 is a strong guarantee for its quality. This standard has strict regulations on indicators such as conductor resistance, insulation resistance, voltage resistance performance, and mechanical strength of the cable, ensuring consistency and reliability during production and use.​ In terms of application scenarios, the 1.5mm² 450/750V PVC insulated copper cable has a wide range of applications. In family residences, it is often used in lighting lines, ordinary socket circuits, and power supply connections for small household appliances (such as televisions, computers, electric fans, etc.). Its flexibility allows it to easily pass through conduits in walls, floors, and ceilings, meeting complex wiring needs. In commercial places such as offices, shopping malls, and hotels, the cable can be used as distribution lines for lighting systems and small office equipment, providing stable power support for various electrical equipment. In the industrial field, it is suitable for control circuits, signal transmission lines, and connections of some low-power motors, ensuring the normal operation of industrial production. In addition, in agricultural facilities, such as lighting in greenhouses and power supply for small irrigation equipment, this cable can also play an important role.​ During installation and use, it is necessary to follow relevant specifications. The laying of the cable should avoid excessive bending and stretching to prevent damage to the insulation layer. In high-temperature environments or locations in contact with heat sources, heat insulation measures should be taken to avoid accelerated aging of the PVC insulation layer due to high temperature. The connections should be firm and tight to avoid heat generation due to poor contact. Regular inspection and maintenance of the cable, timely detection and handling of problems such as insulation layer damage and conductor oxidation, can further ensure the safe and stable operation of the electrical system.