High Voltage (HV) cables are the critical infrastructure for primary power transmission and distribution, operating at voltage levels from 45kV to 132kV and beyond. Unlike medium voltage distribution cables, HV cables are designed for bulk power transfer over long distances with minimal losses, connecting generating stations to primary substations and forming the backbone of national and regional power grids. Manufactured to IEC 60840 (Power cables with extruded insulation for rated voltages above 30kV up to 150kV), these cables utilize XLPE (cross-linked polyethylene) insulation for its exceptional electrical properties, thermal stability, and long service life. The German VDE designation system (2XS(F)2Y, etc.) has become the international standard for specifying HV cable construction.

ESLos cables de alta tensión (HV) son la infraestructura crítica para la transmisión y distribución primaria de energía, operando a niveles de voltaje de 45kV a 132kV y más allá.

繁中高壓（HV）電纜是一次電力傳輸和配電的關鍵基礎設施，運行在 45kV 至 132kV 及以上的電壓等級。與中壓配電電纜不同，高壓電纜設計用於長距離批量電力傳輸並將損耗降至最低，連接發電站到一次變電站，形成國家和區域電網的骨幹。這些電纜按照 IEC 60840（額定電壓 30kV 以上至 150kV 的擠出絕緣電力電纜）製造，使用 XLPE（交聯聚乙烯）絕緣，因其出色的電氣性能、熱穩定性和長使用壽命。德國 VDE 標識系統（2XS(F)2Y 等）已成為規定高壓電纜結構的國際標準。【說明：IEC 60840 涵蓋 30kV 至 150kV 的高壓電纜，而 IEC 62067 涵蓋 150kV 以上的超高壓電纜。這些標準定義了絕緣厚度、測試要求和性能規格】

HV cables for underground installation require sophisticated construction to ensure reliable long-term performance. The conductor (copper or aluminium) is surrounded by an extruded semi-conductive screen to ensure uniform electric field distribution, then the main XLPE insulation, followed by another semi-conductive screen. A metallic screen (copper wire or tape) provides fault current return path and electromagnetic shielding. For wet environments, water-blocking tapes and laminated moisture barriers (designated “FL” in the cable code) prevent water ingress that could cause electrical treeing. The outer HDPE or MDPE sheath provides mechanical protection for direct burial or duct installation.

ESLos cables HV para instalación subterránea requieren una construcción sofisticada para garantizar un rendimiento fiable a largo plazo.

繁中用於地下安裝的高壓電纜需要精密的結構以確保可靠的長期性能。導體（銅或鋁）被擠出半導電屏蔽層包圍以確保均勻的電場分佈，然後是主要的 XLPE 絕緣，接著是另一層半導電屏蔽層。金屬屏蔽層（銅絲或銅帶）提供故障電流回路和電磁屏蔽。對於潮濕環境，阻水帶和複合防潮屏障（在電纜代碼中標記為 “FL”）防止可能導致電樹枝的水分侵入。外部 HDPE 或 MDPE 護套為直埋或管道安裝提供機械保護。【說明：電樹枝（Electrical Treeing）是高壓電纜絕緣中的一種降解現象，水分在強電場作用下形成樹枝狀通道，最終導致絕緣擊穿。這就是為什麼高壓電纜特別強調防水性能的原因】

The German VDE (Verband Deutscher Elektrotechniker) cable designation system has become the international standard for specifying HV cable construction. Each element of the code describes a specific layer or characteristic of the cable. Understanding this system is essential for specifying the correct cable for any HV application. The designations 2XS(F)2Y and 2XS(FL)2Y describe cables with XLPE insulation, copper wire screen, and PE outer sheath, with the difference being the moisture barrier construction.

ESEl sistema de designación de cables alemán VDE se ha convertido en el estándar internacional para especificar la construcción de cables HV.

繁中德國 VDE（德國電氣工程師協會）電纜標識系統已成為規定高壓電纜結構的國際標準。代碼的每個元素描述電纜的特定層或特性。理解這個系統對於為任何高壓應用規定正確的電纜至關重要。標識 2XS(F)2Y 和 2XS(FL)2Y 描述了具有 XLPE 絕緣、銅絲屏蔽和 PE 外護套的電纜，區別在於防潮屏障結構。【說明：VDE 命名系統非常精確——每個字母和數字都有特定含義，可以從電纜名稱完全推斷其結構】

High voltage cables are manufactured with multiple specialized layers, each performing a critical function in ensuring safe, reliable operation over decades of service life. The construction must manage the extreme electrical stresses present at these voltage levels while providing mechanical protection and environmental sealing.

ESLos cables de alta tensión se fabrican con múltiples capas especializadas, cada una realizando una función crítica para garantizar un funcionamiento seguro y confiable.

繁中高壓電纜由多個專門層製造，每層在確保數十年服務壽命內安全可靠運行方面執行關鍵功能。結構必須管理這些電壓等級下存在的極端電應力，同時提供機械保護和環境密封。

Our high voltage cable range covers all major voltage classes from 45kV to 132kV, available with copper or aluminium conductors and HDPE or MDPE outer sheaths. All cables are manufactured to IEC 60840 and can be customized with additional features including armour (wire or corrugated tape), enhanced screening, and specific conductor sizes to meet project requirements.

ESNuestra gama de cables de alta tensión cubre todas las principales clases de voltaje de 45kV a 132kV, disponibles con conductores de cobre o aluminio y cubiertas exteriores de HDPE o MDPE.

繁中我們的高壓電纜範圍涵蓋從 45kV 到 132kV 的所有主要電壓等級，可提供銅或鋁導體以及 HDPE 或 MDPE 外護套。所有電纜均按 IEC 60840 製造，可根據項目要求定制附加功能，包括鎧裝（絲或波紋帶）、增強屏蔽和特定導體尺寸。

The choice between HDPE (High Density Polyethylene) and MDPE (Medium Density Polyethylene) outer sheath depends on the installation requirements. HDPE offers superior abrasion resistance and mechanical strength, making it the standard choice for most direct burial and duct installations. MDPE provides improved flexibility, which can be advantageous for installations with tight bending requirements or where cable handling is challenging.

ESLa elección entre cubiertas exteriores de HDPE y MDPE depende de los requisitos de instalación.

繁中HDPE（高密度聚乙烯）和 MDPE（中密度聚乙烯）外護套之間的選擇取決於安裝要求。HDPE 提供優越的耐磨性和機械強度，使其成為大多數直埋和管道安裝的標準選擇。MDPE 提供改進的柔性，這對於有緊彎曲要求或電纜處理具有挑戰性的安裝可能是有利的。【說明：HDPE 密度約為 0.94-0.97 g/cm³，而 MDPE 密度約為 0.93-0.94 g/cm³。較低的密度賦予 MDPE 更好的柔性但較低的耐磨性】