The 12 AWG copper ground wire, a key component ensuring the safety of electrical systems, features a structure of 7 stranded copper conductors with a diameter of 0.80mm, wrapped in a THW-type insulation layer, and marked with distinct green-yellow 双色. It is widely used in grounding circuits of various buildings, industrial equipment, and electrical appliances, providing a safe discharge channel for current leakage and serving as a core element in the electrical safety protection system.​ In terms of specification parameters, the conductor of this ground wire is composed of 7 strands of 0.80mm high-purity electrolytic copper wires, which conforms to the 12 AWG (American Wire Gauge) standard, with a corresponding cross-sectional area of approximately 3.31mm². At room temperature, the DC resistance is ≤5.21Ω/km, ensuring that leakage current can be quickly conducted in case of faults. Its rated voltage is 600V, far exceeding the actual voltage of conventional grounding circuits, providing sufficient safety margin for extreme working conditions. The THW-type insulation layer is made of temperature-resistant polyvinyl chloride material, with a long-term allowable operating temperature of 90℃, and can withstand a temperature of not less than 160℃ during short circuits (maximum 5 seconds), adapting to emergency grounding needs in high-temperature environments.​ In structural design, the stranded conductor endows the cable with excellent flexibility, with a minimum bending radius of only 4 times the outer diameter of the cable, facilitating bending and wiring in narrow spaces, especially suitable for grounding connections in complex environments such as inside equipment and wall gaps. The green-yellow 双色 insulation layer is not only an internationally recognized grounding identifier, enabling quick identification of line functions, but also has a thickness of 0.8mm and an insulation resistance of ≥100MΩ, combining insulation protection and mechanical protection functions, which can resist daily wear, moisture, and slight chemical corrosion.​ In terms of characteristic uses, in the construction field, this ground wire is often used for grounding of power distribution systems in residential buildings and commercial buildings, connecting main distribution boxes, metal pipes, and grounding electrodes to form a complete grounding network, preventing electric shock accidents caused by leakage; in industrial scenarios, it is suitable for grounding of metal enclosures of machine tools and production line equipment. When the equipment insulation fails, it can conduct leakage current into the ground, avoiding equipment damage or personal injury; in the household appliance field, the grounding terminal of power plugs of high-power appliances such as refrigerators and air conditioners mostly uses this specification cable to ensure electrical safety during use.​ In addition, the cable has passed the UL 44 standard certification, with an insulation layer oxygen index of ≥28, and self-extinguishing properties, which can inhibit the spread of combustion in case of open fire. Each roll is available in 50-meter and 100-meter lengths, supporting cutting according to actual needs to reduce material waste. Its surface is printed with clear specification marks, certification information, and meter scales, facilitating quick checking and cutting during construction. In summary, with the advantages of "high conductivity + strong flexibility + standardized identification", the 12 AWG copper ground wire has become an ideal choice for electrical safety grounding, building a solid safety barrier for various electricity usage scenarios.