Bare or green/yellow stranded copper grounding wires (with specifications covering 6 AWG, 2 AWG, 1/0 AWG, 2/0 AWG) are safety cables specifically designed for equipment grounding. Their core function is to reliably connect the metal enclosures and frames of electrical equipment to the ground, forming a discharge channel for fault currents, thereby preventing electric shock accidents caused by electrified equipment, stabilizing system voltage, and ensuring the safe operation of electrical systems. Their diverse specifications adapt to the grounding needs of equipment with different power levels, and they are key components for equipment safety protection in industrial, commercial, and civil fields.​ In terms of conductor characteristics, stranded copper material is its core advantage. High-purity electrolytic copper has excellent conductivity, which can quickly conduct fault currents and ensure the timeliness of grounding response; the multi-strand stranded structure endows the wire with good flexibility, making it easy to install and fix in scenarios such as narrow spaces inside equipment and curved wiring, reducing construction difficulty. The current-carrying capacity of different specifications varies significantly: 6 AWG is suitable for small equipment (such as household appliances, office equipment) with a current-carrying capacity of about 55-75A; 2 AWG can meet the grounding needs of medium-sized industrial machinery (such as water pumps, fans) with a current-carrying capacity of 95-125A; 1/0 AWG and 2/0 AWG are suitable for large equipment (such as transformers, generator sets) with current-carrying capacities of 150-180A and 180-220A respectively, which can cope with high current impacts.​ In terms of appearance and identification, the bare wire version has no insulation layer and directly exposes the copper conductor, suitable for dry, dust-free enclosed environments (such as grounding inside control cabinets); the green/yellow version adopts the internationally universal grounding identification color, and the outer layer is usually wrapped with a PVC insulation layer, which has both insulation protection and intuitive identification functions, suitable for exposed installation or humid environments (such as outdoor equipment, humid workshops). This color identification can effectively avoid wrong connections and ensure the correctness of the grounding loop.​ The applicable scenarios are wide: in the industrial field, it can be used for grounding the enclosures of production line equipment, machine tools, and distribution boxes; in commercial buildings, it is suitable for safety grounding of air conditioning units, elevators, and large lighting equipment; in civil scenarios, it can be used as a grounding branch for home appliances such as washing machines and refrigerators. In addition, its high conductivity and mechanical strength can also provide reliable guarantee in the grounding of transformers, distribution cabinets in power systems, and equipment in communication base stations.​ In terms of performance, this series of grounding wires strictly complies with international grounding standards (such as IEC, UL) and has passed multiple tests such as conductivity, mechanical strength, and corrosion resistance. The copper conductor of the bare wire has undergone anti-oxidation treatment, which can reduce oxidative rust; the PVC insulation layer of the green/yellow wire has a temperature resistance range of -15℃ to 70℃, strong moisture resistance, and can resist moisture and slight chemical erosion in daily environments.​ In summary, with multi-specification adaptability, high-conductivity stranded copper material, clear identification design, and reliable performance, bare or green/yellow stranded copper grounding wires have become an ideal choice for equipment grounding systems, building a solid defense line for the safe operation of various electrical equipment.