Cu XLPE Swa PVC 16mm² (16 square millimeters) and 25mm² (25 square millimeters) 4-core copper armoured cables are high-performance dedicated wires in industrial and power transmission fields, integrating high safety, strong durability, and wide applicability, playing a key role in power distribution in complex environments.​ In terms of model and structure, "Cu" clearly indicates that the conductor material is high-purity electrolytic copper, whose excellent conductivity can effectively reduce energy loss during current transmission and ensure the efficiency of power delivery; "XLPE" stands for cross-linked polyethylene insulation layer. Compared with traditional PVC insulation, it has higher temperature resistance (long-term operating temperature up to 90℃), chemical corrosion resistance, and insulation strength, making it adaptable to harsher working environments; "Swa" refers to Steel Wire Armour. By wrapping one or more layers of steel strips around the cable core, it significantly enhances the mechanical strength of the cable, resisting external extrusion, impact, and gnawing by rodents, especially suitable for scenarios prone to mechanical damage such as direct burial and bridge laying; "PVC" is the outer sheath, which not only further protects the armoured layer but also has good moisture resistance and UV resistance, extending the service life of the cable. The "4-core" design means the cable contains 4 independently insulated copper conductors, meeting the needs of three-phase four-wire power supply systems, applicable to power transmission, large-scale equipment power supply, and other scenarios.​ In terms of specifications, 16mm² and 25mm² refer to the cross-sectional area of a single conductor, directly determining the current-carrying capacity of the cable. The 16mm² cable is suitable for medium-power equipment, such as small motors and workshop production lines; the 25mm² cable can carry larger currents, often used in large industrial machinery, main power supply lines of buildings, etc. Both comply with the International Electrotechnical Commission (IEC) or relevant national standards, ensuring safe operation under rated voltage (usually 0.6/1kV).​ In application scenarios, such cables are widely used in outdoor buried laying, tunnel projects, factory workshops, high-rise building distribution trunks, etc., due to their armoured structure and weather resistance. For example, in municipal engineering, they can be used as underground transmission lines for street lamp systems; in industrial plants, they provide stable power for heavy machinery; in commercial complexes, they serve as main cables from the distribution room to each floor. Their steel tape armouring feature eliminates the need for additional pipe protection, reducing construction costs and complexity.​ In terms of price, the pricing of Cu XLPE Swa PVC 4-core cables is affected by multiple factors: the cross-sectional area of the conductor is a core factor, and the 25mm² cable is more expensive than the 16mm² due to more copper usage; fluctuations in market copper prices directly affect costs, and armouring processes, insulation material quality, and brand premiums also lead to price differences. In addition, purchase quantity, transportation distance, and whether installation services are included will also have an impact on the final quotation. Generally, the unit price of 16mm² cables ranges from tens to hundreds of yuan per meter, and 25mm² is higher. The specific price is subject to the real-time quotation of suppliers.​ In summary, this series of cables, with high-quality materials, robust structure, and flexible specification options, have become an ideal choice for industrial and civil power transmission. Although their prices are affected by multiple factors, their comprehensive performance and durability give them high cost-effectiveness.