Thw copper cable is a high-performance cable specially designed for industrial wiring scenarios, covering two wire gauges: 4/0 AWG (large specification) and 12 AWG (small and medium specification), with a rated voltage of 600V. It adopts a polyvinyl chloride (PVC) insulation layer, which combines excellent conductivity, temperature resistance and mechanical strength, and is widely used in industrial plants, manufacturing production lines, large equipment power supply and other fields. The conductor of the 4/0 AWG cable is stranded by multiple strands of high-purity electrolytic copper, with a single wire diameter of about 2.0mm and a total cross-sectional area of 107mm². The current-carrying capacity can reach 230A (at an ambient temperature of 30℃), which is suitable for the main power supply lines of high-power industrial equipment, such as large motors, transformers, and furnaces. Its thick wire diameter and multi-strand stranded structure endow the cable with strong current-carrying capacity, which can stably transmit power under high-load working conditions and reduce heating caused by overload. The 12 AWG cable is stranded by finer multi-strand copper wires, with a single wire diameter of about 0.4mm and a total cross-sectional area of 3.31mm², and a current-carrying capacity of 20A. It is suitable for branch lines, control lines and auxiliary power supply for signal transmission of small and medium-sized equipment, such as pipeline sensors, small motors, and internal wiring of control cabinets, flexibly adapting to complex industrial wiring environments. The insulation layer is made of PVC material with a temperature resistance level of 90℃, and the thickness varies according to the wire diameter: the insulation layer thickness of 4/0 AWG is not less than 1.5mm, and that of 12 AWG is not less than 0.8mm. This PVC material not only has good insulation performance (volume resistivity ≥1×10¹⁴Ω·cm), which can effectively block current leakage, but also has oil resistance and chemical corrosion resistance, and can resist the erosion of common oil stains, coolants, and mild acid-base substances in industrial environments. The insulation layer has passed strict voltage withstand tests (AC 2500V/5min without breakdown) to ensure safe use under the rated voltage of 600V. At the same time, its flame retardant performance meets the UL 94 V-2 standard, which can quickly self-extinguish after the open flame is removed, reducing the risk of fire spread. Both cables use high-purity electrolytic copper (purity ≥99.95%) as conductors, with a conductivity of up to 101% IACS, which is much better than ordinary copper materials. It can significantly reduce resistance loss during current transmission and improve energy utilization efficiency. The conductor surface has been annealed to enhance flexibility and fatigue resistance. The 4/0 AWG cable can withstand a bending radius of not less than 8 times the outer diameter of the cable, and the 12 AWG cable has a bending radius of not less than 6 times, which is convenient for laying in narrow spaces, equipment interlayers and other complex environments, reducing construction difficulty. In industrial scenarios, 4/0 AWG cables are often used for power transmission from the main distribution cabinet of the workshop to large equipment, such as rolling mills in steel plants and reactor power supply in chemical plants; 12 AWG cables are suitable for control lines inside equipment, indicator light lines and temporary power supply for small tools, such as the manipulator control lines of automated production lines and auxiliary lines of welding equipment. In addition, both cables comply with international standards such as UL 44 and NFPA 70, and have passed multiple tests such as aging resistance, vibration resistance, and damp heat resistance. Their service life can reach more than 15 years, and they can adapt to harsh conditions such as high temperature, dust, and mechanical vibration in industrial environments. The color design of the cable follows industrial wiring specifications: the black insulation layer is used for phase lines, white or gray for neutral lines, and yellow-green for grounding lines, which is convenient for quickly identifying line functions and reducing construction misoperations. The outer PVC insulation also has certain wear resistance, which can resist friction and collision during wiring, protect the internal conductor from damage, and ensure the long-term stable operation of the industrial power supply system.