This product is a green-yellow polyvinyl chloride (PVC) insulated stranded copper grounding wire, available in six specifications: 10mm², 16mm², 25mm², 35mm², 50mm², and 70mm². Specifically designed for grounding protection in electrical systems, it serves as a core component to ensure electrical safety.​ The conductor is made of high-purity electrolytic copper, composed of multiple stranded fine copper wires. The number of strands and diameter of single wires for different specifications are optimized with increasing cross-sectional area: 10mm² typically consists of 49 strands of 0.52mm diameter copper wires; 16mm² has 49 strands of 0.64mm; 25mm² includes 98 strands of 0.58mm; 35mm² features 133 strands of 0.58mm; 50mm² comprises 133 strands of 0.68mm; and 70mm² consists of 189 strands of 0.68mm. The stranded structure endows the wire with excellent flexibility, facilitating bending and threading installation in complex electrical cabinets, building walls, or inside equipment. It is particularly suitable for scenarios requiring frequent adjustment of wiring paths, while reducing the risk of conductor breakage due to bending.​ The insulation layer is made of aging-resistant and wear-resistant PVC material, with a color strictly following international universal standards—alternating green and yellow. This identification is mandatory and unique, clearly distinguishing it from live wires and neutral wires, ensuring it can be quickly identified as a grounding wire in any electrical system, and fundamentally avoiding the risk of misconnection. The thickness of the PVC insulation layer increases with specifications: approximately 1.0mm for 10mm² and up to 1.4mm for 70mm². It boasts excellent electrical insulation performance, capable of withstanding operating temperatures from -15℃ to 70℃, while resisting acid, alkali, oil pollution, and ultraviolet erosion. It can maintain long-term stability even in humid and dusty industrial environments.​ In terms of electrical performance, the rated current-carrying capacity of each specification wire matches its cross-sectional area: 10mm² is approximately 50-60A, 16mm² is 65-80A, 25mm² is 90-110A, 35mm² is 110-135A, 50mm² is 140-170A, and 70mm² is 180-220A. All are applicable to grounding circuits with AC 50Hz and rated voltage of 450/750V or below. Its core function is to reliably connect the metal enclosures and frames of electrical equipment to the ground. When a leakage occurs in the equipment, it can quickly conduct the fault current into the ground, reduce the voltage of the enclosure to the ground, prevent electric shock to personnel, and trigger protective devices (such as circuit breakers) to cut off the power supply, avoiding the expansion of accidents.​ This grounding wire is widely used in low-voltage power distribution systems in industrial plants, commercial buildings, power stations, rail transit, etc., adapting to the grounding needs of various electrical equipment such as motors, transformers, and switchgear. The product production strictly complies with standards such as GB 50169 and IEC 60445, and passes multiple tests including insulation withstand voltage, conductor resistance, and aging resistance, ensuring low impedance and high reliability of the grounding circuit, and building a solid defense for the safe operation of electrical systems.

The Fr - PVC insulated grounding cable is a high - quality cable specially designed for grounding needs in various electrical scenarios. Its cross - sectional specifications range from 6mm² to 25mm², with green and yellow colors as a prominent grounding identifier. The conductor is a high - purity copper wire, with a rated voltage of 450/750V, and it fully complies with the IEC 60446 standard, playing a crucial role in ensuring electrical safety.​ In terms of specification parameters, the cross - sectional range of 6 - 25mm² enables it to adapt to the grounding needs of electrical equipment with different powers. The 6mm² cable is suitable for some medium - power electrical equipment, such as small industrial motors and large - power household air conditioners. These equipment may generate a certain amount of leakage current during operation, and the 6mm² cable can stably conduct it to the ground. The 10mm² and 16mm² cables can be used in scenarios such as medium - sized industrial equipment and grounding of power distribution systems in commercial places. For example, large refrigeration equipment in shopping malls and assembly line motors in factories have higher requirements for the conductivity of the cable for their grounding needs, and these two specifications of cables can well meet them. The 25mm² cable has particularly excellent conductivity and is suitable for large industrial machinery, grounding main lines of substations, etc. It can cope with large fault currents and ensure that the current can be quickly conducted away in case of emergencies, reducing the occurrence of safety accidents. The rated voltage of 450/750V matches many low - voltage electrical systems, and can maintain stable grounding performance when the voltage fluctuates, without the need for additional voltage adaptation devices, simplifying the installation process.​ In terms of materials, the conductor is made of high - purity copper, which has excellent conductivity, can conduct current quickly, reduce losses during current transmission, and ensure the timeliness and effectiveness of grounding. At the same time, high - purity copper has good ductility and corrosion resistance. Even in relatively complex environments, such as humid and dusty industrial workshops, it can maintain stable performance for a long time, extending the service life of the cable. The outer Fr - PVC insulation layer is a major highlight of the cable. Fr - PVC, namely flame - retardant polyvinyl chloride, not only has excellent electrical insulation performance, which can effectively block current leakage and prevent interference between the grounding system and other circuits, but also has excellent flame - retardant characteristics. When encountering an open flame, it can delay combustion and reduce the risk of fire spread, adding a safety barrier to the electrical system.​ The green - yellow wire design is an internationally accepted grounding identifier, which is extremely important in complex electrical wiring environments. It allows installation and maintenance personnel to quickly identify the grounding cable, avoid misconnection, and ensure the correct connection of the grounding system. Complying with the IEC 60446 standard further ensures the quality and performance of the cable. This standard has strict regulations on the conductor material, insulation layer thickness, flame - retardant performance, mechanical strength, etc. of the cable, making this cable have rules to follow in all links such as production and inspection, and the quality is more guaranteed.​ In terms of application scenarios, this cable has a wide range of applications. In the industrial field, it can be used for grounding of various production equipment and production lines to ensure the safety of workers' operations and the normal operation of equipment. In commercial places, such as large shopping malls and office buildings, it can provide reliable grounding for their complex power distribution systems to ensure the stable operation of various electrical equipment. In public places, such as hospitals and schools, where the requirements for electrical safety are extremely high, the cable can meet their strict grounding standards and protect people's lives and property.​ In conclusion, with its reasonable specification design, high - quality materials, clear identification and international standard - compliant quality, the Fr - PVC insulated grounding cable has become an indispensable part of the electrical grounding system, providing a solid guarantee for the safe operation of various electrical scenarios.