An MV Power Cable, or Medium Voltage Power Cable, is a critical component in modern electrical distribution systems. It is designed to transmit electrical energy at voltages typically ranging from 1 kV to 35 kV, making it suitable for industrial facilities, commercial complexes, utility networks, and infrastructure projects. Compared with low voltage cables, MV power cables are engineered to withstand higher electrical stress, greater thermal loads, and more demanding operating environments.The structure of an MV power cable usually consists of several key layers. At the center is the conductor, which is commonly made of copper or aluminum. Copper conductors provide excellent conductivity and mechanical strength, while aluminum conductors offer a lighter and more cost-effective alternative. Surrounding the conductor is the insulation layer, which is one of the most important parts of the cable. Materials such as cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR) are often used because they provide strong dielectric properties, high thermal resistance, and long-term reliability.To control the electric field and reduce partial discharge, MV cables often include a conductor screen and an insulation screen. These semi-conductive layers help ensure uniform electrical stress distribution and improve overall cable performance. In addition, a metallic screen, usually made of copper tape or copper wires, is applied to provide grounding, fault current return, and electromagnetic shielding. Depending on the application, the cable may also include an inner sheath, armor, and an outer jacket for mechanical protection, moisture resistance, and environmental durability.MV power cables are widely used in underground power transmission, substations, renewable energy projects, mining operations, transportation systems, and large manufacturing plants. Their installation may be carried out in ducts, trays, direct burial, or submarine routes depending on project requirements. Because they are often deployed in harsh conditions, these cables must meet strict standards for fire resistance, moisture protection, UV resistance, chemical resistance, and mechanical strength.One major advantage of MV power cables is their ability to deliver power efficiently over medium distances with reduced losses. Their robust insulation and shielding design also enhance safety and reliability. In modern power networks, they play an essential role in supporting stable electricity supply and enabling the expansion of energy infrastructure. As electrical demand continues to grow, MV power cables remain a vital solution for safe, efficient, and durable power transmission.