The 35mm² green-yellow earth wire is a key cable specially designed for the safe grounding of electrical systems. It adopts a high-purity multi-strand stranded copper core and is covered with a green-yellow Two-color insulation layer. It combines excellent conductivity, flexibility and identification, and is widely used in the grounding loops of industrial plants, commercial buildings, power facilities and other scenarios, providing core protection for the safety of equipment and personnel.​ The conductor part is stranded by 70 strands of high-purity electrolytic copper wires with a diameter of 0.8mm, with a total cross-sectional area of 35mm² and a purity of more than 99.95%. The multi-strand stranded structure not only makes the cable have excellent flexibility, which can be easily bent into various angles (the minimum bending radius is 6 times the outer diameter of the cable), adapting to complex grounding wiring environments, but also increases the conductor surface area, improving heat dissipation performance and current conduction efficiency. At an ambient temperature of 30℃, its current-carrying capacity can reach 135A, which can quickly conduct fault current into the ground, effectively reducing the risk of electrification of the equipment shell, and meeting the grounding needs of high-power scenarios such as large industrial equipment and power distribution systems.​ The insulation layer is made of polyvinyl chloride (PVC) or cross-linked polyethylene (XLPE) material with a temperature resistance level of 105℃, and the thickness is uniform and not less than 1.2mm. This insulating material has excellent insulation performance (volume resistivity ≥1×10¹⁴Ω・cm), which can prevent the grounding loop from accidentally contacting other conductors. At the same time, it has aging resistance and chemical corrosion resistance, and can resist oil pollution, moisture and mild acid-base erosion in industrial environments. The insulation layer has passed strict voltage withstand tests (AC 2000V/5min without breakdown) to ensure safe use in complex environments. The green-yellow 双色 insulation layer design is its significant identifier, which conforms to the color standard of the dedicated grounding wire in international electrical specifications. It can be quickly distinguished from phase wires and neutral wires, avoiding the risk of misconnection during construction and improving the reliability of the grounding system.​ The mechanical properties of the earth wire are also excellent, with a tensile strength of ≥12MPa and an elongation at break of ≥150%. It can withstand stretching and friction during wiring, and is not prone to conductor breakage or insulation layer damage. Its flame retardant performance reaches UL 94 V-2 level, which can inhibit combustion and reduce smoke when exposed to open fire, reducing safety hazards in case of fire. In addition, the cable has passed multiple tests such as vibration resistance and damp heat resistance, maintaining stable performance in the temperature range of -40℃ to 105℃, with a service life of more than 15 years.​ In practical applications, the 35mm² green-yellow earth wire is mainly used in the following scenarios: grounding the shell of large motors and transformers in industrial plants, quickly conducting the leakage current generated during equipment failure into the ground; connecting the main grounding terminal box of commercial buildings with the grounding electrode, constructing the grounding main line of the entire building; wiring the grounding grid of power substations, forming an efficient fault current shunting network; safety grounding of new energy charging piles, ensuring the safety of personnel during charging. Its flexible characteristics make it particularly suitable for laying in equipment-intensive areas and narrow spaces, such as internal grounding of switch cabinets and grounding branches in cable trays, simplifying the construction process and improving the installation efficiency of the grounding system.​ The production process of the cable strictly follows standards such as GB 50169 and IEC 60445. From copper wire drawing, stranding to insulation extrusion, all realize automatic control. Each batch of products undergoes comprehensive tests such as conductor resistance, insulation resistance and temperature resistance, and is accompanied by a quality certificate to ensure that it meets the strict requirements of the grounding system. As the "lifeline" of electrical safety, the 35mm² green-yellow earth wire, with its excellent performance and clear identification, has become an indispensable safety guarantee component in various electrical systems.