A 35kV power cable is a medium-voltage electrical cable designed for reliable transmission and distribution of electricity in power networks. It is commonly used in urban grids, industrial plants, substations, renewable energy projects, and infrastructure where stable and safe power delivery is required. Compared with low-voltage cables, a 35kV cable is built to withstand higher electrical stress, stronger insulation demands, and harsher operating conditions.The cable structure usually includes a conductor, conductor shielding layer, insulation layer, insulation shielding layer, metallic shielding, and outer jacket. The conductor is typically made of copper or aluminum, offering excellent conductivity and mechanical strength. Around the conductor, a semiconductive shielding layer helps smooth the electric field and reduce partial discharge. The insulation layer is often made of cross-linked polyethylene (XLPE), which is widely valued for its high dielectric strength, thermal stability, and long service life. An additional shielding layer is applied outside the insulation to maintain a uniform electric field. Metallic shielding, such as copper tape or copper wire, provides grounding and improves safety. Finally, the outer sheath protects the cable from moisture, chemicals, abrasion, and environmental damage.35kV power cables are designed for excellent electrical performance. They can operate under continuous load while maintaining low power loss and high transmission efficiency. XLPE insulated cables, in particular, are known for their ability to handle higher conductor temperatures, which makes them suitable for demanding applications. They also offer strong resistance to aging, heat, and mechanical stress, ensuring dependable operation over many years.These cables are available in different specifications depending on installation requirements. They can be installed underground, in ducts, on cable trays, or in power tunnels. Some designs are armored for extra mechanical protection in areas where the cable may be exposed to external force. Others are unarmored for easier installation in controlled environments. Selection depends on voltage level, current capacity, installation method, soil conditions, ambient temperature, and project standards.Safety and reliability are key advantages of 35kV power cables. Their advanced insulation and shielding systems reduce the risk of electrical failure and improve operational stability. They are also designed to meet international standards for voltage rating, flame retardance, and environmental resistance. In modern power systems, these cables play an essential role in ensuring efficient energy transfer and supporting the growth of industrial and municipal electrical networks.Overall, a 35kV power cable is a critical component in medium-voltage power transmission. With strong insulation, durable construction, and excellent performance, it provides a safe and efficient solution for long-distance and high-demand electrical applications.