The H07V-K 35mm² and 25mm² green-yellow earth cables are key cables specially designed for the safe grounding of electrical systems. With their reliable conductive performance, clear identification, and stable mechanical properties, they play an irreplaceable role in the grounding circuits of various industrial, commercial, and civil buildings.​ In terms of specification parameters, both cables adopt a multi-strand copper stranded structure, complying with the H07V-K model standard. The 25mm² cable conductor is composed of multiple strands of fine copper wires with a diameter of approximately 0.25mm, with a total number of strands exceeding 400. The overall conductor diameter is about 6.5mm, and the DC resistance at 20°C is not greater than 0.727Ω/km, which can quickly conduct fault current into the ground. The 35mm² cable has a single copper wire diameter of about 0.28mm, with more than 560 strands, a conductor diameter of about 8mm, and a DC resistance of no more than 0.524Ω/km, suitable for grounding requirements with larger currents. Both cables have a rated voltage of 450/750V, meeting the voltage requirements of grounding circuits in low-voltage electrical systems, and can work stably in AC 50Hz or 60Hz circuits.​ The insulation layer is made of high-quality PVC material. The insulation thickness of the 25mm² cable is about 1.2mm, and that of the 35mm² is about 1.4mm. Both have excellent insulation performance, with a dielectric strength exceeding 20kV/mm, and an insulation resistance of not less than 100MΩ·km at 20°C, effectively avoiding the risk of leakage between the grounding circuit and other live parts. The long-term operating temperature range of the cables is -15°C to 70°C, and they can withstand high temperatures of 90°C for a short time, adapting to temperature fluctuations in different environments. In addition, the minimum bending radius of both cables is 4 times the outer diameter of the cable. The static bending radius of the 25mm² cable is not less than 26mm, and that of the 35mm² is not less than 32mm, facilitating laying in complex electrical cabinets or wall interlayers.​ In terms of characteristic uses, the eye-catching green-yellow color identification is its most prominent feature. This internationally accepted standard color for grounding can quickly distinguish the grounding circuit, avoid misconnection, and ensure the accuracy of the grounding system. The 25mm² cable is often used for grounding of small and medium-sized electrical equipment, such as motors in industrial production lines, control cabinets, and distribution boxes in commercial buildings. It can connect the metal 外壳 of equipment to the grounding electrode, and when the equipment leaks, it can quickly conduct the current into the ground, protecting personnel and equipment safety. The 35mm² cable is suitable for the main grounding circuits of large electrical systems, such as transformer grounding in factories, high-voltage switchgear grounding, and main grounding trunks in large buildings. It can carry larger fault currents and ensure the grounding reliability of the entire electrical system.​ In the construction field, both cables are widely used in lightning protection grounding, protective grounding, and working grounding of new buildings. For example, in commercial complexes, 25mm² cables can be used for connecting local grounding grids in each floor's distribution room, while 35mm² cables serve as the main grounding trunks of the building, connecting the grounding grids of each floor to outdoor grounding electrodes to form a complete grounding system, effectively resisting safety hazards caused by lightning strikes and equipment leakage. In industrial plants, they are often used for grounding metal frames, pipes, and metal components of production line equipment to prevent static accumulation and leakage accidents.​ In terms of materials and performance, the conductor is made of high-purity electrolytic copper with a purity of more than 99.95%, ensuring excellent conductivity, reducing grounding resistance, and improving the conduction efficiency of fault current. The stranding process of the copper stranded wire has been optimized, giving the cable good flexibility, which can withstand multiple bendings and vibrations without breaking easily, meeting the installation requirements in complex environments. The PVC insulation layer not only has reliable insulation performance but also has oil resistance, wear resistance, and certain flame retardancy. When in contact with industrial oils such as engine oil and diesel, the volume change rate within 24 hours does not exceed 5%, and the wear amount after the wear test (load 500g, 1000 revolutions) is less than 8mg, prolonging the service life of the cable.​ In addition, the green-yellow color identification of the cable uses special temperature-resistant ink, which is integrally formed with the insulation layer through an extrusion process. The color is uniform and not easy to fade, and can still be clearly identified even in long-term use or harsh environments, complying with the grounding identification standards of the International Electrotechnical Commission (IEC). Both cables have passed strict quality inspections, including voltage withstand test (withstanding 2500V voltage for 1 minute without breakdown), tensile test (tensile strength not less than 12MPa), and bending test (no cracks after 1000 bendings), ensuring safety and reliability under various working conditions.​ In conclusion, the H07V-K 35mm² and 25mm² green-yellow earth cables, with their precise specification design, clear identification, and stable performance, provide a solid guarantee for the safe grounding of electrical systems, and are ideal choices for various low-voltage electrical equipment and building grounding projects.

PVC Single Core Green/Yellow Earth Ground Cable Summary​ The 25mm², 50mm², and 95mm² PVC single core green/yellow earth ground cables are critical safety components in electrical systems, designed to redirect fault currents to the ground, preventing electric shocks and equipment damage. Crafted with high-purity copper conductors, these cables ensure low resistance and efficient conduction of fault currents, a vital feature for maintaining system safety.​ The green/yellow color coding is universally recognized for earth grounding, enabling quick identification and ensuring compliance with international safety standards. The PVC insulation provides robust protection against moisture, corrosion, and mechanical impact, making the cables suitable for both indoor and outdoor installations, including industrial facilities, commercial buildings, and residential complexes.​ Each size caters to specific current demands: 25mm² for medium-scale setups like commercial wiring; 50mm² and 95mm² for heavy-duty applications such as industrial machinery and high-voltage systems. Compliant with global electrical norms, these cables integrate seamlessly with existing systems, offering reliable performance in harsh environments. Their durability, clear identification, and tailored sizing make them indispensable for ensuring electrical safety across diverse applications.