Thw-2 green copper grounding wire is a high-performance cable specially designed for safe grounding of electrical systems. It offers two specifications: 12AWG (2.05mm²) and 4AWG (21.15mm²). The insulation layer is made of PVC material resistant to 90°C high temperature, and the green outer sheath complies with international grounding identification standards. It is widely used in grounding loops of residential, commercial buildings and industrial facilities, providing a reliable fault current discharge channel for various electrical equipment.​ The core advantages of this series of cables lie in their excellent conductivity and temperature resistance. The conductor is made of high-purity electrolytic copper. The DC resistance of 12AWG conductor does not exceed 1.588Ω/km, and that of 4AWG does not exceed 0.248Ω/km, which can quickly conduct fault current into the ground and reduce the risk of electric shock. The 90°C temperature-resistant PVC insulation layer not only has good insulation performance (insulation resistance ≥100MΩ), but also can resist aging in high-temperature environments, making it suitable for places with high temperatures such as kitchens and boiler rooms. The green outer sheath clearly identifies the grounding function, avoiding confusion with other cables during wiring and improving installation safety.​ The 12AWG specification is suitable for grounding of small electrical equipment, such as household distribution boxes, lighting circuits, and metal casings of small household appliances; the 4AWG specification is used for connecting large equipment to the main grounding network, such as industrial motors, transformers, and main grounding trunks of commercial buildings. It complies with international standards such as UL and has passed strict mechanical performance and electrical safety tests. The bending radius is 6 times the outer diameter of the cable, which is convenient for laying in narrow spaces. Whether buried, conduit installation or surface-mounted, it can maintain stable performance and is a key component to ensure the safe operation of electrical systems.

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.

The 600V single core green/yellow stranded copper PVC electrical grounding wire, featuring two large cross-sectional area specifications of 70mm² and 100mm², is a core component specially designed for the safe grounding of electrical systems. With high-conductivity stranded copper as the conductor, PVC as the insulation layer, and internationally recognized green/yellow dual-color identification, it combines excellent current conduction capability and environmental adaptability. It is widely used in industrial plants, large commercial buildings, power facilities and other scenarios, providing reliable grounding protection for various high-load electrical systems, effectively preventing electric leakage accidents and ensuring the safety of personnel and equipment. In terms of specifications and parameters, the two core specifications of this grounding wire accurately match the grounding needs of different power levels. The 70mm² specification, with its precisely calculated conductor cross-sectional area, has excellent large-current carrying and conduction capabilities, making it suitable for grounding circuits of medium and high-power electrical systems, such as small and medium-sized industrial production lines and grounding networks for power distribution in commercial complexes. It can quickly conduct fault leakage current to the ground, avoiding equipment damage or electric shock risks caused by current accumulation. The 100mm² specification is designed for ultra-high load scenarios; its larger conductor cross-section further reduces resistance, and it can be adapted to large industrial equipment (such as heavy-duty motors, high-voltage frequency converters), auxiliary grounding systems of substations, and main grounding trunks of large data centers. Even when instantaneous large currents are generated under extreme faults, it can conduct stably to prevent overload of the grounding circuit. The entire series is uniformly marked with a rated voltage of 600V, which complies with the grounding voltage standards of most low-voltage electrical systems. It can be directly integrated into conventional power distribution grounding structures without additional voltage adaptation, and is compatible with a variety of grounding terminals and connectors, simplifying the installation process. In terms of material selection, the wire uses stranded copper as the conductor core. Different from solid copper conductors, it is twisted from multiple strands of high-purity fine copper wires, with three major advantages: First, it has excellent electrical conductivity. The high-purity copper material has extremely low resistivity, which can minimize energy loss during leakage current transmission and ensure that fault current is quickly conducted to the ground. Second, it has stronger mechanical flexibility. It can be flexibly bent in complex grounding wiring environments (such as the bottom of industrial equipment, underground grounding networks of buildings), avoiding conductor breakage caused by excessive rigidity. At the same time, it is easy to be firmly crimped with components such as grounding electrodes and grounding bars, reducing contact resistance. Third, it has excellent fatigue resistance. When affected by vibration or temperature fluctuations for a long time, the stranded structure can disperse stress, reduce conductor fatigue damage, and extend the service life. The insulation layer is made of PVC material, which has good electrical insulation, corrosion resistance and temperature resistance. It can work stably in an environment of -15℃ to 70℃, effectively isolating the conductor from the external environment, preventing conductor oxidation or erosion by chemical substances. At the same time, the PVC material has high mechanical strength, which can resist slight friction and impact during wiring and use, protecting the integrity of the conductor. The green/yellow dual-color identification is a key recognizable design of this grounding wire, strictly following international electrical safety standards. The alternating green and yellow insulation color clearly identifies its grounding function attribute, allowing installers and maintenance personnel to quickly identify the grounding circuit, avoid confusion with live wires and neutral wires, and reduce the risk of grounding failure caused by wiring errors. This standardized color identification not only improves construction efficiency, but also provides clear guidance for fault diagnosis during later maintenance, ensuring the traceability and safety of the grounding system. In terms of application scenarios, relying on its large specifications and high reliability, this grounding wire covers various high-demand scenarios. In the industrial field, the 70mm² specification can be used for equipment grounding in medium-sized machinery processing workshops and power distribution grounding in light industrial production lines; the 100mm² specification is suitable for high-voltage equipment grounding in heavy machinery factories and metallurgical plants, as well as auxiliary grounding networks of industrial substations, addressing potential leakage risks during the operation of high-power equipment. In the commercial and public building field, it can be used as the main grounding trunk of large shopping malls, hotels, and hospitals, or the grounding circuit of server clusters in data centers, ensuring the electrical safety of densely populated areas and precision equipment. In power facility scenarios, it is applicable to the grounding of distribution transformers, auxiliary grounding of transmission line towers, and grounding systems of new energy power stations (such as photovoltaic power stations and wind farms), providing stable grounding protection for power transmission and conversion processes. In addition, the PVC insulation layer of the wire has a certain tolerance to common industrial dust and slight oil pollution, and can operate stably for a long time in non-extreme harsh environments, further expanding its application range. In terms of safety performance, in addition to the efficient conductivity of the stranded copper conductor and the protective effect of the PVC insulation, its 600V rated voltage design has sufficient insulation strength, which can withstand instantaneous voltage fluctuations that may occur in the grounding system, avoiding grounding failure caused by insulation breakdown; the low-resistance characteristic of the large-specification conductor ensures that fault leakage current is conducted in a very short time, shortening the electric shock risk window; the green/yellow dual-color identification reduces human operation errors from the source. Multiple safety designs jointly build a reliable grounding line of defense for the electrical system, complying with domestic and international electrical safety standards, and providing solid protection for electrical safety in various high-load scenarios.