{"id":30326,"date":"2026-06-02T06:51:56","date_gmt":"2026-06-02T06:51:56","guid":{"rendered":"https:\/\/doingcable.com\/?p=30326"},"modified":"2026-06-02T06:52:18","modified_gmt":"2026-06-02T06:52:18","slug":"what-type-of-cable-is-used-in-high-voltage-transmission-lines","status":"publish","type":"post","link":"https:\/\/doingcable.com\/fr\/what-type-of-cable-is-used-in-high-voltage-transmission-lines\/","title":{"rendered":"What Type of Cable is Used in High Voltage Transmission Lines?"},"content":{"rendered":"

High voltage transmission lines form the backbone of modern power grids, carrying electricity over long distances from generation plants to distribution networks. In Saudi Arabia and across the GCC, rapid expansion under Vision 2030 \u2014 including renewable energy integration, industrial growth, and grid modernization \u2014 demands cables that deliver qualit\u00e9 fiable<\/strong>, high mechanical strength, excellent electrical performance, and long-term durability in extreme desert and coastal environments.<\/p>\n\n\n\n

The type of cable used depends primarily on whether the line is overhead<\/strong> ou underground<\/strong>. Overhead lines dominate long-distance transmission due to lower cost and easier maintenance, while underground cables are preferred in urban areas, environmentally sensitive zones, or where aesthetics and land use are critical.<\/p>\n\n\n\n

This detailed technical guide examines the most common high voltage cables \u2014 with a focus on ACSR conductors<\/strong> for overhead and c\u00e2bles d'alimentation XLPE<\/strong> for underground applications \u2014 including specifications, standards, and practical selection criteria for regional projects.<\/p>\n\n\n\n

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Overhead High Voltage Transmission Cables: The Industry Standard<\/h2>\n\n\n\n

For overhead high voltage transmission lines (typically 66 kV to 500 kV and above), bare conductors<\/strong> are used. These are supported by transmission towers and rely on air for insulation.<\/p>\n\n\n\n

The Most Widely Used Type: ACSR (Aluminum Conductor Steel Reinforced)<\/a><\/strong><\/p>\n\n\n\n

ACSR is the predominant choice worldwide and across Saudi Arabia and GCC utilities for high voltage and extra-high voltage lines. It consists of a central galvanized steel core surrounded by one or more layers of high-purity aluminum (1350-H19) strands.<\/p>\n\n\n\n

Key Advantages of ACSR for High Voltage Transmission:<\/strong><\/p>\n\n\n\n