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Oil Filled Power Cable
Oil Filled Power Cables are specialized high-voltage transmission cables designed to ensure maximum insulation efficiency and thermal stability under extreme electrical loads. They are filled with specially refined insulating oil that maintains dielectric strength and prevents electrical discharge within the cable core. These cables are ideal for long-distance power transmission and are widely used in urban grids, substations, and industrial energy networks where reliability and safety are paramount.
Manufactured using high-grade copper or aluminum conductors, Oil Filled Power Cables feature layers of impregnated paper insulation, pressurized oil channels, and seamless metallic sheaths to ensure excellent electrical and mechanical protection. The production process involves vacuum impregnation, oil pressure testing, and sealing to maintain stable insulation performance over time. Available in single-core or three-core types, they are categorized into self-contained oil-filled (SCOF), pipe-type oil-filled (PTOF), and pressure-assisted cable systems. These cables meet international standards such as IEC 62067 and BS 6480 and are suitable for voltages ranging from 66 kV to 400 kV and beyond. Applications include underground and submarine transmission lines, high-capacity substations, and power generation plants.
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Oil Filled Power Cables provide superior insulation reliability, high current-carrying capacity, and long service life. Their oil circulation systems efficiently dissipate heat, ensuring consistent performance even under continuous load. With excellent resistance to moisture, mechanical stress, and voltage surges, these cables remain a trusted choice for demanding high-voltage transmission environments, supporting the backbone of modern power infrastructure.
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